Attachment 246295 Details for Bug 442217 – Initial implementation

[patch] Initial implementation

mat-javaee-plugin.diff (text/plain), 117.89 KB, created by James Livingston

on 2014-08-24 22:45:50 EDT

(hide)

Description:

Filename:

MIME Type:

Creator: James Livingston

Created: 2014-08-24 22:45:50 EDT

Size: 117.89 KB

patch

obsolete

>Index: features/org.eclipse.mat.feature/feature.xml
>===================================================================
>--- features/org.eclipse.mat.feature/feature.xml	(revision 1527)
>+++ features/org.eclipse.mat.feature/feature.xml	(working copy)
>@@ -112,4 +112,11 @@
>          version="0.0.0"
>          unpack="false"/>
> 
>+   <plugin
>+         id="org.eclipse.mat.javaee"
>+         download-size="35"
>+         install-size="35"
>+         version="0.0.0"
>+         unpack="false"/>
>+
> </feature>
>Index: features/org.eclipse.mat.ui.rcp.feature/feature.xml
>===================================================================
>--- features/org.eclipse.mat.ui.rcp.feature/feature.xml	(revision 1527)
>+++ features/org.eclipse.mat.ui.rcp.feature/feature.xml	(working copy)
>@@ -113,6 +113,13 @@
>          unpack="false"/>
>          
>    <plugin
>+         id="org.eclipse.mat.javaee"
>+         download-size="35"
>+         install-size="35"
>+         version="0.0.0"
>+         unpack="false"/>
>+
>+   <plugin
>          id="org.eclipse.mat.chart"
>          download-size="12"
>          install-size="12"
>Index: org.eclipse.mat.releng/babel/mat.map
>===================================================================
>--- org.eclipse.mat.releng/babel/mat.map	(revision 1527)
>+++ org.eclipse.mat.releng/babel/mat.map	(working copy)
>@@ -5,6 +5,7 @@
> plugin@org.eclipse.mat.dtfj=SVN,trunk,http://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.dtfj
> plugin@org.eclipse.mat.hprof=SVN,trunk,http://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.hprof
> plugin@org.eclipse.mat.ibmdumps=SVN,trunk,http://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.ibmdumps
>+plugin@org.eclipse.mat.javaee=SVN,trunk,http://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.javaee
> plugin@org.eclipse.mat.jdt=SVN,trunk,http://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.jdt
> plugin@org.eclipse.mat.jruby.resolver=SVN,trunk,http://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.jruby.resolver
> plugin@org.eclipse.mat.parser=SVN,trunk,http://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.parser
>Index: org.eclipse.mat.releng.athena/maps/build.map
>===================================================================
>--- org.eclipse.mat.releng.athena/maps/build.map	(revision 1527)
>+++ org.eclipse.mat.releng.athena/maps/build.map	(working copy)
>@@ -22,6 +22,7 @@
> fragment@org.eclipse.mat.tests.junit=SVN,trunk,svn://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.tests.junit
> plugin@org.eclipse.mat.ui.rcp=SVN,trunk,svn://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.ui.rcp
> plugin@org.eclipse.mat.jruby.resolver=SVN,trunk,svn://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.jruby.resolver
>+plugin@org.eclipse.mat.javaee=SVN,trunk,svn://dev.eclipse.org/svnroot/tools/org.eclipse.mat,,plugins/org.eclipse.mat.javaee
> 
> #for running tests
> plugin@org.eclipse.test=v20081002,:pserver:anonymous@dev.eclipse.org:/cvsroot/eclipse,
>Index: parent/pom.xml
>===================================================================
>--- parent/pom.xml	(revision 1527)
>+++ parent/pom.xml	(working copy)
>@@ -243,6 +243,7 @@
> 		<module>../plugins/org.eclipse.mat.ui.rcp</module>
> 		<module>../plugins/org.eclipse.mat.ibmdumps</module>
> 		<module>../plugins/org.eclipse.mat.jruby.resolver</module>
>+		<module>../plugins/org.eclipse.mat.javaee</module>
> 		
> 		<module>../features/org.eclipse.mat.chart.feature</module>
> 		<module>../features/org.eclipse.mat.feature</module>
>Index: plugins/org.eclipse.mat.javaee/.classpath
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/xml
>Index: plugins/org.eclipse.mat.javaee/.classpath
>===================================================================
>--- plugins/org.eclipse.mat.javaee/.classpath	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/.classpath	(working copy)
>
>Property changes on: plugins/org.eclipse.mat.javaee/.classpath
>___________________________________________________________________
>Added: svn:mime-type
>## -0,0 +1 ##
>+application/xml
>\ No newline at end of property
>Index: plugins/org.eclipse.mat.javaee/.project
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/xml
>Index: plugins/org.eclipse.mat.javaee/.project
>===================================================================
>--- plugins/org.eclipse.mat.javaee/.project	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/.project	(working copy)
>
>Property changes on: plugins/org.eclipse.mat.javaee/.project
>___________________________________________________________________
>Added: svn:mime-type
>## -0,0 +1 ##
>+application/xml
>\ No newline at end of property
>Index: plugins/org.eclipse.mat.javaee/.settings/org.eclipse.jdt.core.prefs
>===================================================================
>--- plugins/org.eclipse.mat.javaee/.settings/org.eclipse.jdt.core.prefs	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/.settings/org.eclipse.jdt.core.prefs	(working copy)
>@@ -0,0 +1,7 @@
>+eclipse.preferences.version=1
>+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
>+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
>+org.eclipse.jdt.core.compiler.compliance=1.5
>+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
>+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
>+org.eclipse.jdt.core.compiler.source=1.5
>Index: plugins/org.eclipse.mat.javaee/META-INF/MANIFEST.MF
>===================================================================
>--- plugins/org.eclipse.mat.javaee/META-INF/MANIFEST.MF	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/META-INF/MANIFEST.MF	(working copy)
>@@ -0,0 +1,17 @@
>+Manifest-Version: 1.0
>+Bundle-ManifestVersion: 2
>+Bundle-Name: %Bundle-Name
>+Bundle-SymbolicName: org.eclipse.mat.javaee;singleton:=true
>+Bundle-Version: 1.5.0.qualifier
>+Bundle-Vendor: %Bundle-Vendor
>+Require-Bundle: org.eclipse.core.runtime;bundle-version="3.3.100",
>+ org.eclipse.mat.api;bundle-version="1.5.0"
>+Bundle-Activator: org.eclipse.mat.javaee.JavaEEPlugin
>+Bundle-ActivationPolicy: lazy
>+Bundle-RequiredExecutionEnvironment: J2SE-1.5
>+Bundle-Localization: plugin
>+Bundle-Copyright: Copyright (c) 2014 Red Hat Inc. 
>+ All rights reserved. This program and the accompanying materials 
>+ are made available under the terms of the Eclipse Public License v1.0 
>+ which accompanies this distribution, and is available at 
>+ http://www.eclipse.org/legal/epl-v10.html
>Index: plugins/org.eclipse.mat.javaee/META-INF/reports/javaee-overview.xml
>===================================================================
>--- plugins/org.eclipse.mat.javaee/META-INF/reports/javaee-overview.xml	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/META-INF/reports/javaee-overview.xml	(working copy)
>@@ -0,0 +1,29 @@
>+<section name="Enterprise Java" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
>+        xmlns="http://www.eclipse.org/mat/report.xsd"
>+        xsi:schemaLocation="http://www.eclipse.org/mat/report.xsd ../../../org.eclipse.mat.report/schema/report.xsd"
>+        >
>+    
>+    <query name="HTTP Sessions">
>+        <command>javaee-http-sessions</command>
>+    </query>
>+    <query name="HTTP Session attributes">
>+        <command>javaee-http-session-attributes</command>
>+    </query>
>+    <query name="HTTP Requests">
>+        <command>javaee-http-requests</command>
>+    </query>
>+    <query name="Servlets">
>+        <command>javaee-servlets</command>
>+    </query>
>+    <query name="Stateful EJBs">
>+        <command>javaee-ejb-stateful</command>
>+    </query>
>+</section>
>\ No newline at end of file
>Index: plugins/org.eclipse.mat.javaee/about.html
>===================================================================
>--- plugins/org.eclipse.mat.javaee/about.html	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/about.html	(working copy)
>@@ -0,0 +1,28 @@
>+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
>+    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
>+<html>
>+<head>
>+<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"/>
>+<title>About</title>
>+</head>
>+<body lang="EN-US">
>+<h2>About This Content</h2>
>+
>+<p>June 5, 2006</p>
>+<h3>License</h3>
>+
>+<p>The Eclipse Foundation makes available all content in this plug-in (&quot;Content&quot;).  Unless otherwise
>+indicated below, the Content is provided to you under the terms and conditions of the
>+Eclipse Public License Version 1.0 (&quot;EPL&quot;).  A copy of the EPL is available
>+at <a href="http://www.eclipse.org/legal/epl-v10.html">http://www.eclipse.org/legal/epl-v10.html</a>.
>+For purposes of the EPL, &quot;Program&quot; will mean the Content.</p>
>+
>+<p>If you did not receive this Content directly from the Eclipse Foundation, the Content is
>+being redistributed by another party (&quot;Redistributor&quot;) and different terms and conditions may
>+apply to your use of any object code in the Content.  Check the Redistributor's license that was
>+provided with the Content.  If no such license exists, contact the Redistributor.  Unless otherwise
>+indicated below, the terms and conditions of the EPL still apply to any source code in the Content
>+and such source code may be obtained at <a href="http://www.eclipse.org">http://www.eclipse.org</a>.</p>
>+
>+</body>
>+</html>
>\ No newline at end of file
>Index: plugins/org.eclipse.mat.javaee/build.properties
>===================================================================
>--- plugins/org.eclipse.mat.javaee/build.properties	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/build.properties	(working copy)
>@@ -0,0 +1,18 @@
>+###############################################################################
>+# Copyright (c) 2014 Red Hat Inc.
>+# All rights reserved. This program and the accompanying materials
>+# are made available under the terms of the Eclipse Public License v1.0
>+# which accompanies this distribution, and is available at
>+# http://www.eclipse.org/legal/epl-v10.html
>+#
>+# Contributors:
>+#     Red Hat Inc - initial API and implementation
>+###############################################################################
>+
>+source.. = src/
>+output.. = bin/
>+bin.includes = META-INF/,\
>+               .,\
>+               plugin.xml,\
>+               plugin.properties,\
>+               about.html
>Index: plugins/org.eclipse.mat.javaee/plugin.properties
>===================================================================
>--- plugins/org.eclipse.mat.javaee/plugin.properties	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/plugin.properties	(working copy)
>@@ -0,0 +1,13 @@
>+###############################################################################
>+# Copyright (c) 2014 Red Hat Inc.
>+# All rights reserved. This program and the accompanying materials
>+# are made available under the terms of the Eclipse Public License v1.0
>+# which accompanies this distribution, and is available at
>+# http://www.eclipse.org/legal/epl-v10.html
>+#
>+# Contributors:
>+#     Red Hat Inc - initial API and implementation
>+###############################################################################
>+#Properties file for org.eclipse.mat.hprof
>+Bundle-Vendor = Eclipse Memory Analyzer
>+Bundle-Name = Memory Analyzer - Java EE queries and reports
>Index: plugins/org.eclipse.mat.javaee/plugin.xml
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/xml
>Index: plugins/org.eclipse.mat.javaee/plugin.xml
>===================================================================
>--- plugins/org.eclipse.mat.javaee/plugin.xml	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/plugin.xml	(working copy)
>
>Property changes on: plugins/org.eclipse.mat.javaee/plugin.xml
>___________________________________________________________________
>Added: svn:mime-type
>## -0,0 +1 ##
>+application/xml
>\ No newline at end of property
>Index: plugins/org.eclipse.mat.javaee/pom.xml
>===================================================================
>Cannot display: file marked as a binary type.
>svn:mime-type = application/xml
>Index: plugins/org.eclipse.mat.javaee/pom.xml
>===================================================================
>--- plugins/org.eclipse.mat.javaee/pom.xml	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/pom.xml	(working copy)
>
>Property changes on: plugins/org.eclipse.mat.javaee/pom.xml
>___________________________________________________________________
>Added: svn:mime-type
>## -0,0 +1 ##
>+application/xml
>\ No newline at end of property
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/BaseObjectQuery.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/BaseObjectQuery.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/BaseObjectQuery.java	(working copy)
>@@ -0,0 +1,161 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee;
>+
>+import java.lang.reflect.Array;
>+import java.util.Arrays;
>+import java.util.Collections;
>+import java.util.Comparator;
>+import java.util.List;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.query.Column;
>+import org.eclipse.mat.query.IContextObject;
>+import org.eclipse.mat.query.IQuery;
>+import org.eclipse.mat.query.IResult;
>+import org.eclipse.mat.query.IResultTree;
>+import org.eclipse.mat.query.ResultMetaData;
>+import org.eclipse.mat.query.annotations.Argument;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.query.IHeapObjectArgument;
>+import org.eclipse.mat.util.IProgressListener;
>+
>+/* O is the "overview" node type*/
>+public abstract class BaseObjectQuery<O extends IOverviewNode> implements IQuery {
>+    private final Class<O> oClass;
>+
>+    @Argument public ISnapshot snapshot;
>+
>+    @Argument(isMandatory = false, flag = Argument.UNFLAGGED)
>+    public IHeapObjectArgument objects;
>+
>+    public BaseObjectQuery(Class<O> oClass) {
>+        this.oClass = oClass;
>+    }
>+
>+    public IResult execute(IProgressListener listener) throws Exception {
>+        List<Integer> source = ((objects != null) ? new IntArrayList(objects.getIds(listener)) : findObjects(snapshot));
>+        O[] result = buildResults(source).toArray((O[]) Array.newInstance(oClass, source.size()));
>+
>+        Arrays.sort(result, new Comparator<O>() {
>+            public int compare(O o1, O o2) {
>+                return o1.getRetainedHeap() > o2.getRetainedHeap() ? -1 : o1.getRetainedHeap() == o2.getRetainedHeap() ? 0 : 1;
>+            }
>+        });
>+
>+        return new ResultList(result);
>+    }
>+
>+    protected abstract List<O> buildResults(List<Integer> source) throws SnapshotException;
>+    protected abstract List<Integer> findObjects(ISnapshot snapshot) throws SnapshotException;
>+    protected abstract boolean overviewHasChildren(O row);
>+    protected abstract Column[]  getColumns();
>+
>+    protected Object getOverviewColumnValue(O row, int columnIndex) {
>+        JavaEEPlugin.error("Unexpected column index " + columnIndex);
>+        return null;
>+    }
>+
>+    protected Object getColumnValue(Object row, int columnIndex) {
>+        if (row.getClass().isAssignableFrom(oClass)) {
>+            return getOverviewColumnValue((O)row, columnIndex);
>+        } else if (row instanceof GraftedResultTree.Proxy) {
>+            return ((GraftedResultTree.Proxy)row).getColumnValue(columnIndex);
>+        } else {
>+            JavaEEPlugin.error("Unexpected row class " + row.getClass().getName());
>+            return null;
>+        }
>+    }
>+
>+    protected IContextObject getContext(Object row) {
>+        if (row.getClass().isAssignableFrom(oClass)) {
>+            final O node = (O) row;
>+            return new IContextObject() {
>+                public int getObjectId() {
>+                    return node.getId();
>+                }
>+            };
>+        } else if (row instanceof GraftedResultTree.Proxy) {
>+            GraftedResultTree.Proxy proxy = (GraftedResultTree.Proxy) row;
>+            //return proxy.getContext(); FIXME bad performance?!?
>+            return null;
>+        } else {
>+            JavaEEPlugin.error("Unexpected row class " + row.getClass().getName());
>+            return null;
>+        }
>+    }
>+
>+
>+    protected boolean hasChildren(Object row) {
>+        if (row.getClass().isAssignableFrom(oClass)) {
>+            return overviewHasChildren((O)row);
>+        } else if (row instanceof GraftedResultTree.Proxy) {
>+            return ((GraftedResultTree.Proxy)row).hasChildren();
>+        } else {
>+            JavaEEPlugin.error("Unexpected row class " + row.getClass().getName());
>+            return false;
>+        }
>+    }
>+
>+    protected List<?> getChildren(Object row) {
>+        if (row.getClass().isAssignableFrom(oClass)) {
>+            return getOverviewChildren((O)row);
>+        } else if (row instanceof GraftedResultTree.Proxy) {
>+            GraftedResultTree.Proxy proxy = (GraftedResultTree.Proxy) row;
>+            return proxy.getChildren();
>+        } else {
>+            JavaEEPlugin.error("Unexpected row class " + row.getClass().getName());
>+            return null;
>+        }
>+    }
>+
>+    protected List<?> getOverviewChildren(O row) {
>+        return Collections.emptyList();
>+    }
>+
>+
>+    private class ResultList implements IResultTree {
>+        private final O[] results;
>+
>+        public ResultList(O[] sessions) {
>+            this.results = sessions;
>+        }
>+
>+        public Object getColumnValue(Object row, int columnIndex) {
>+            return BaseObjectQuery.this.getColumnValue(row, columnIndex);
>+        }
>+
>+        public Column[] getColumns() {
>+            return BaseObjectQuery.this.getColumns();
>+        }
>+
>+        public IContextObject getContext(Object row) {
>+            return BaseObjectQuery.this.getContext(row);
>+        }
>+
>+        public ResultMetaData getResultMetaData() {
>+            return new ResultMetaData.Builder()
>+                .build();
>+        }
>+
>+        public List<O> getElements() {
>+            return Arrays.asList(results);
>+        }
>+
>+        public boolean hasChildren(Object row) {
>+            return BaseObjectQuery.this.hasChildren(row);
>+        }
>+
>+        public List<?> getChildren(Object row) {
>+            return BaseObjectQuery.this.getChildren(row);
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/GraftedResultTree.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/GraftedResultTree.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/GraftedResultTree.java	(working copy)
>@@ -0,0 +1,78 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee;
>+
>+import java.util.ArrayList;
>+import java.util.List;
>+
>+import org.eclipse.mat.query.IContextObject;
>+import org.eclipse.mat.query.IResultTree;
>+
>+public class GraftedResultTree {
>+    private final IResultTree subtree;
>+    private final int[] columnMapping;
>+
>+    private GraftedResultTree(IResultTree tree, final int[] columnMapping) {
>+        if (Utils.max(columnMapping) > tree.getColumns().length) {
>+            throw new IllegalArgumentException("Mapped to non-existant columns");
>+        }
>+
>+        this.subtree = tree;
>+        this.columnMapping = columnMapping;
>+    }
>+
>+    public static List<?> graft(IResultTree child, Object root, final int[] columnMapping) {
>+        GraftedResultTree tree = new GraftedResultTree(child, columnMapping);
>+        List<? extends Object> children = child.getElements();
>+        List<Proxy> results = new ArrayList<Proxy>(children.size());
>+        for (Object o: children) {
>+            results.add(tree.proxy(o));
>+        }
>+        return results;
>+    }
>+
>+    private Proxy proxy(Object o) {
>+        return new Proxy(o);
>+    }
>+
>+    public class Proxy {
>+        private final Object o;
>+
>+        public Proxy(Object o) {
>+            this.o = o;
>+        }
>+
>+        public List<?> getChildren() {
>+            List<?> children = subtree.getChildren(o);
>+            List<Proxy> results = new ArrayList<Proxy>(children.size());
>+            for (Object c: children) {
>+                results.add(new Proxy(c));
>+            }
>+            return results;
>+        }
>+
>+        public boolean hasChildren() {
>+            return subtree.hasChildren(o);
>+        }
>+
>+        public IContextObject getContext() {
>+            return subtree.getContext(o);
>+        }
>+
>+        public Object getColumnValue(int columnIndex) {
>+            int col = columnMapping[columnIndex];
>+            if (col >= 0)
>+                return subtree.getColumnValue(o, col);
>+            else
>+                return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/IOverviewNode.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/IOverviewNode.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/IOverviewNode.java	(working copy)
>@@ -0,0 +1,16 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee;
>+
>+public interface IOverviewNode {
>+    long getRetainedHeap();
>+    int getId();
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/IntArrayList.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/IntArrayList.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/IntArrayList.java	(working copy)
>@@ -0,0 +1,31 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee;
>+
>+import java.util.AbstractList;
>+import java.util.RandomAccess;
>+
>+public class IntArrayList extends AbstractList<Integer> implements RandomAccess {
>+    private final int[] elements;
>+
>+    public IntArrayList(int[] elements) {
>+        this.elements = elements;
>+    }
>+
>+    public Integer get(int index) {
>+        return elements[index];
>+    }
>+
>+    public int size() {
>+        return elements.length;
>+    }
>+
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/JavaEEPlugin.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/JavaEEPlugin.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/JavaEEPlugin.java	(working copy)
>@@ -0,0 +1,74 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee;
>+
>+import org.eclipse.core.runtime.IStatus;
>+import org.eclipse.core.runtime.Plugin;
>+import org.eclipse.core.runtime.Status;
>+import org.osgi.framework.BundleActivator;
>+import org.osgi.framework.BundleContext;
>+
>+public class JavaEEPlugin extends Plugin implements BundleActivator {
>+    public static final String PLUGIN_ID = "org.eclipse.mat.javaee"; //$NON-NLS-1$
>+
>+    private static JavaEEPlugin plugin;
>+
>+    public JavaEEPlugin() {
>+
>+    }
>+
>+    public void start(BundleContext context) throws Exception {
>+        super.start(context);
>+        plugin = this;
>+    }
>+
>+    public void stop(BundleContext context) throws Exception {
>+        plugin = null;
>+        super.stop(context);
>+    }
>+
>+    public static JavaEEPlugin getDefault() {
>+        return plugin;
>+    }
>+
>+    public static void log(IStatus status) {
>+        getDefault().getLog().log(status);
>+    }
>+
>+    public static void error(Throwable e) {
>+        error("Internal error", e);
>+    }
>+
>+    public static void error(String message, Throwable e) {
>+        log(new Status(IStatus.ERROR, PLUGIN_ID, message, e));
>+    }
>+
>+    public static void error(String message) {
>+        log(new Status(IStatus.ERROR, PLUGIN_ID, message));
>+    }
>+
>+    public static void warning(String message) {
>+        log(new Status(IStatus.WARNING, PLUGIN_ID, message));
>+    }
>+
>+    public static void warning(String message, Throwable e) {
>+        log(new Status(IStatus.WARNING, PLUGIN_ID, message, e));
>+    }
>+
>+    public static void info(String message) {
>+        log(new Status(IStatus.INFO, PLUGIN_ID, message));
>+
>+    }
>+
>+    public static void log(int severity, String message) {
>+        log(new Status(severity, PLUGIN_ID, message));
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/SimpleObjectQuery.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/SimpleObjectQuery.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/SimpleObjectQuery.java	(working copy)
>@@ -0,0 +1,35 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee;
>+
>+import java.util.ArrayList;
>+import java.util.List;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public abstract class SimpleObjectQuery<O extends IOverviewNode> extends BaseObjectQuery<O> {
>+    public SimpleObjectQuery(Class<O> oClass) {
>+        super(oClass);
>+    }
>+
>+    protected List<O> buildResults(List<Integer> source) throws SnapshotException {
>+        List<O> result = new ArrayList<O>();
>+        for (int id: source) {
>+            O o = createOverviewNode(snapshot.getObject(id));
>+            if (o != null)
>+                result.add(o);
>+        }
>+        return result;
>+    }
>+
>+    protected abstract O createOverviewNode(IObject obj);
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/Utils.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/Utils.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/Utils.java	(working copy)
>@@ -0,0 +1,118 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee;
>+
>+import java.util.Iterator;
>+import java.util.Map;
>+import java.util.Map.Entry;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.inspections.collections.CollectionUtil;
>+import org.eclipse.mat.inspections.collections.CollectionUtil.Info;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.Field;
>+import org.eclipse.mat.snapshot.model.IClass;
>+import org.eclipse.mat.snapshot.model.IObject;
>+import org.eclipse.mat.snapshot.model.ObjectReference;
>+import org.eclipse.mat.util.VoidProgressListener;
>+
>+public final class Utils {
>+    public static Integer max(int[] columnMapping) {
>+        if (columnMapping == null || columnMapping.length == 0)
>+            return null;
>+
>+        int cur = columnMapping[0];
>+        for (int i = 0; i < columnMapping.length; i++) {
>+            if (columnMapping[i] > cur)
>+                cur = columnMapping[i];
>+        }
>+        return cur;
>+    }
>+
>+    public static IObject resolveIObject(IObject o, String field, String... fields) throws SnapshotException {
>+        IObject cur = (IObject)o.resolveValue(field);
>+        for (int i = 0; i < fields.length && cur != null; i++) {
>+            cur = (IObject)cur.resolveValue(fields[i]);
>+        }
>+        return cur;
>+    }
>+
>+    // only works if a.equals(b) = (a == b)
>+    public static IObject resolveMapValueByKeyIdentity(IObject map, IObject key) throws SnapshotException {
>+        for (Map.Entry<IObject,IObject> entry: iterateMap(map)) {
>+            if (entry.getKey().equals(key))
>+                return entry.getValue();
>+        }
>+        return null;
>+    }
>+
>+    public static Iterable<Entry<IObject, IObject>> iterateMap(IObject map) throws SnapshotException {
>+        final Info info = CollectionUtil.getInfo(map);
>+        final String keyField = info.getEntryKeyField();
>+        final String valueField = info.getEntryValueField();
>+        final ISnapshot snapshot = map.getSnapshot();
>+        final int[] entries = info.getCollectionExtractor().extractEntries(map.getObjectId(), info, snapshot, new VoidProgressListener());
>+
>+        final Iterator<Integer> iter = new IntArrayList(entries).iterator();
>+        return new Iterable<Map.Entry<IObject, IObject>>() {
>+            public Iterator<Entry<IObject, IObject>> iterator() {
>+                return new Iterator<Map.Entry<IObject, IObject>>() {
>+                    public Map.Entry<IObject, IObject> next() {
>+                        Integer id = iter.next();
>+
>+                        try {
>+                            IObject entry = snapshot.getObject(id);
>+                            final IObject key = resolveIObject(entry, keyField);
>+                            final IObject value = resolveIObject(entry, valueField);
>+                            return new Map.Entry<IObject,IObject>() {
>+                                public IObject getKey() {
>+                                    return key;
>+                                }
>+
>+                                public IObject getValue() {
>+                                    return value;
>+                                }
>+
>+                                public IObject setValue(IObject value) {
>+                                    throw new IllegalArgumentException();
>+                                }
>+                            };
>+                        } catch (SnapshotException e) {
>+                            throw new RuntimeException(e);
>+                        }
>+                    }
>+
>+                    public boolean hasNext() {
>+                        return iter.hasNext();
>+                    }
>+
>+                    public void remove() {
>+                        throw new IllegalArgumentException();
>+                    }
>+                };
>+            }
>+        };
>+    }
>+
>+    public static IObject findStaticObjectField(IClass clazz, String fieldName) throws SnapshotException {
>+        return ((ObjectReference)findStaticField(clazz, fieldName)).getObject();
>+    }
>+
>+    public static Object findStaticField(IClass clazz, String fieldName) {
>+        for (IClass c = clazz; c != null; c = c.getSuperClass()) {
>+            for (Field f: c.getStaticFields()) {
>+                if (f.getName().equals(fieldName))
>+                    return f.getValue();
>+            }
>+        }
>+        return null;
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/ejb/StatefulEjbQuery.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/ejb/StatefulEjbQuery.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/ejb/StatefulEjbQuery.java	(working copy)
>@@ -0,0 +1,250 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.ejb;
>+
>+import java.util.ArrayList;
>+import java.util.List;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.GraftedResultTree;
>+import org.eclipse.mat.javaee.IOverviewNode;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.SimpleObjectQuery;
>+import org.eclipse.mat.javaee.ejb.api.StatefulEjbExtractor;
>+import org.eclipse.mat.javaee.impl.EjbExtractors;
>+import org.eclipse.mat.query.Column;
>+import org.eclipse.mat.query.IContextObject;
>+import org.eclipse.mat.query.IResultTree;
>+import org.eclipse.mat.query.annotations.Category;
>+import org.eclipse.mat.query.annotations.CommandName;
>+import org.eclipse.mat.query.annotations.Help;
>+import org.eclipse.mat.query.annotations.Name;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IClass;
>+import org.eclipse.mat.snapshot.model.IObject;
>+import org.eclipse.mat.snapshot.query.ObjectListResult;
>+
>+@Category("Enterprise Java/EJB")
>+@Name("Stateful EJBs")
>+@CommandName("javaee-ejb-stateful")
>+@Help("Shows Stateful EJBs")
>+public class StatefulEjbQuery extends SimpleObjectQuery<StatefulEjbQuery.StatefulEJbOverviewNode> {
>+    private static final Column[] COLUMNS = {
>+        new Column("Component", String.class),
>+        new Column("Module", String.class),
>+        new Column("Application", String.class),
>+        new Column("Distinct Name", String.class),
>+        new Column("Class", String.class),
>+        new Column("Instances", Integer.class),
>+        new Column("Size", Long.class),
>+    };
>+    private static final int[] GRAFTED_COLUMN_MAPPING = {0, 1, -1, -1, -1, -1, -1, 2};
>+
>+    final static class StatefulEJbOverviewNode implements IOverviewNode {
>+        private final IObject request;
>+        // TODO: do we need to cache this?
>+        private final StatefulEjbExtractor extractor;
>+
>+        public StatefulEJbOverviewNode(IObject request) {
>+            this.request = request;
>+            this.extractor = EjbExtractors.getStatefulEjbExtractor(request);
>+        }
>+
>+        public long getRetainedHeap() {
>+            return request.getRetainedHeapSize();
>+        }
>+
>+        public int getId() {
>+            return request.getObjectId();
>+        }
>+
>+        private StatefulEjbExtractor getExtractor() {
>+            return extractor;
>+        }
>+
>+        public String getComponentName() {
>+            return getExtractor().getComponentName(request);
>+        }
>+
>+        public String getModuleName() {
>+            return getExtractor().getModuleName(request);
>+        }
>+
>+        public String getApplicationName() {
>+            return getExtractor().getApplicationName(request);
>+        }
>+
>+        public String getDistinctName() {
>+            return getExtractor().getDistinctName(request);
>+        }
>+
>+        public IClass getComponentClass() {
>+            return getExtractor().getComponentClass(request);
>+        }
>+
>+        public Integer getInstanceCount() {
>+            return getExtractor().getInstanceCount(request);
>+        }
>+
>+        public Map<IObject, IObject> getInstances() {
>+            return getExtractor().getInstances(request);
>+        }
>+    }
>+
>+    private static class StatefulEJbInstanceNode {
>+        private final IObject key;
>+        private final IObject instance;
>+
>+        public StatefulEJbInstanceNode(IObject key, IObject instance) {
>+            this.key = key;
>+            this.instance = instance;
>+        }
>+
>+        public IObject getKey() {
>+            return key;
>+        }
>+
>+        public IObject getInstance() {
>+            return instance;
>+        }
>+
>+        public long getRetainedHeap() {
>+            return instance.getRetainedHeapSize();
>+        }
>+    }
>+
>+
>+    public StatefulEjbQuery() {
>+        super(StatefulEJbOverviewNode.class);
>+    }
>+
>+    protected List<Integer> findObjects(ISnapshot snapshot) throws SnapshotException {
>+        return EjbExtractors.findStatefulEjbs(snapshot);
>+    }
>+
>+    protected StatefulEJbOverviewNode createOverviewNode(IObject obj) {
>+        return new StatefulEJbOverviewNode(obj);
>+    }
>+
>+    protected boolean overviewHasChildren(StatefulEJbOverviewNode row) {
>+        return true;
>+    }
>+
>+    protected Column[] getColumns() {
>+        return COLUMNS;
>+    }
>+
>+    @Override
>+    protected Object getOverviewColumnValue(StatefulEJbOverviewNode row, int columnIndex) {
>+        switch (columnIndex) {
>+        case 0:
>+            return row.getComponentName();
>+        case 1:
>+            return row.getModuleName();
>+        case 2:
>+            return row.getApplicationName();
>+        case 3:
>+            return row.getDistinctName();
>+        case 4:
>+            return row.getComponentClass().getName();
>+        case 5:
>+            return row.getInstanceCount();
>+        case 6:
>+            return row.getRetainedHeap();
>+        default:
>+            return super.getOverviewColumnValue(row, columnIndex);
>+        }
>+    }
>+
>+    @Override
>+    protected List<StatefulEJbInstanceNode> getOverviewChildren(StatefulEJbOverviewNode row) {
>+        Map<IObject, IObject> instances = row.getInstances();
>+        List<StatefulEJbInstanceNode> results = new ArrayList<StatefulEJbInstanceNode>(instances.size());
>+        for (Map.Entry<IObject,IObject> i: instances.entrySet()) {
>+            results.add(new StatefulEJbInstanceNode(i.getKey(), i.getValue()));
>+        }
>+        return results;
>+    }
>+
>+
>+    @Override
>+    protected Object getColumnValue(Object row, int columnIndex) {
>+        if (row instanceof StatefulEJbInstanceNode) {
>+            StatefulEJbInstanceNode node = (StatefulEJbInstanceNode)row;
>+            switch (columnIndex) {
>+            case 0:
>+                return node.getKey().getDisplayName();
>+            case 1:
>+                return null;
>+            case 2:
>+                return null;
>+            case 3:
>+                return null;
>+            case 4:
>+                return node.getInstance();
>+            case 5:
>+                return null;
>+            case 6:
>+                return node.getRetainedHeap();
>+            default:
>+                JavaEEPlugin.error("Unexpected column index " + columnIndex);
>+                return null;
>+            }
>+        } else {
>+            return super.getColumnValue(row, columnIndex);
>+        }
>+    }
>+
>+
>+    @Override
>+    protected boolean hasChildren(Object row) {
>+        if (row instanceof StatefulEJbInstanceNode) {
>+            StatefulEJbInstanceNode node = (StatefulEJbInstanceNode) row;
>+            return !node.getInstance().getOutboundReferences().isEmpty();
>+        } else {
>+            return super.hasChildren(row);
>+        }
>+    }
>+
>+    @Override
>+    protected List<?> getChildren(Object row) {
>+        try {
>+            if (row instanceof StatefulEJbInstanceNode) {
>+                StatefulEJbInstanceNode node = (StatefulEJbInstanceNode) row;
>+                // Create an outbound tree and graft it onto the main tree
>+                IObject instance = node.getInstance();
>+                int[] outbounds = instance.getSnapshot().getOutboundReferentIds(instance.getObjectId());
>+                IResultTree subtree = new ObjectListResult.Outbound(instance.getSnapshot(), outbounds);
>+                return GraftedResultTree.graft(subtree, instance, GRAFTED_COLUMN_MAPPING);
>+            } else {
>+                return super.getChildren(row);
>+            }
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    @Override
>+    protected IContextObject getContext(Object row) {
>+        if (row instanceof StatefulEJbInstanceNode) {
>+            final StatefulEJbInstanceNode node = (StatefulEJbInstanceNode) row;
>+            return new IContextObject() {
>+                public int getObjectId() {
>+                    return node.getInstance().getObjectId();
>+                }
>+            };
>+        } else {
>+            return super.getContext(row);
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/ejb/api/StatefulEjbExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/ejb/api/StatefulEjbExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/ejb/api/StatefulEjbExtractor.java	(working copy)
>@@ -0,0 +1,26 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.ejb.api;
>+
>+import java.util.Map;
>+
>+import org.eclipse.mat.snapshot.model.IClass;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public interface StatefulEjbExtractor {
>+    String getComponentName(IObject request);
>+    String getModuleName(IObject request);
>+    String getApplicationName(IObject request);
>+    String getDistinctName(IObject request);
>+    IClass getComponentClass(IObject request);
>+    Integer getInstanceCount(IObject request);
>+    Map<IObject, IObject> getInstances(IObject request);
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/EjbExtractors.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/EjbExtractors.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/EjbExtractors.java	(working copy)
>@@ -0,0 +1,38 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl;
>+
>+import java.util.HashMap;
>+import java.util.List;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.ejb.api.StatefulEjbExtractor;
>+import org.eclipse.mat.javaee.impl.ejb.jboss.JBossStatefulEjbExtractor;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class EjbExtractors extends Extractors {
>+    public static List<Integer> findStatefulEjbs(ISnapshot snapshot) throws SnapshotException {
>+        return findObjects(snapshot, STATEFUL_EJB_EXTRACTORS);
>+    }
>+
>+    public static StatefulEjbExtractor getStatefulEjbExtractor(IObject object) {
>+        return getExtractor(object, STATEFUL_EJB_EXTRACTORS);
>+    }
>+
>+
>+    private static final Map<String, StatefulEjbExtractor> STATEFUL_EJB_EXTRACTORS;
>+    static {
>+        STATEFUL_EJB_EXTRACTORS = new HashMap<String, StatefulEjbExtractor>();
>+        STATEFUL_EJB_EXTRACTORS.put("org.jboss.as.ejb3.component.stateful.StatefulSessionComponent", new JBossStatefulEjbExtractor());
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/Extractors.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/Extractors.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/Extractors.java	(working copy)
>@@ -0,0 +1,46 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl;
>+
>+import java.util.ArrayList;
>+import java.util.Collection;
>+import java.util.List;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IClass;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class Extractors {
>+    protected static <T> List<Integer> findObjects(ISnapshot snapshot, Map<String, T> extractors) throws SnapshotException {
>+        List<Integer> ids = new ArrayList<Integer>();
>+        for (String name: extractors.keySet()) {
>+            Collection<IClass> classes = snapshot.getClassesByName(name, true);
>+            if (classes != null) {
>+                for (IClass clazz : classes) {
>+                    for (int id: clazz.getObjectIds())
>+                        ids.add(id);
>+                }
>+            }
>+        }
>+        return ids;
>+    }
>+
>+    protected static <T> T getExtractor(IObject object, Map<String, T> extractors) {
>+        for (IClass klass = object.getClazz(); klass != null; klass = klass.getSuperClass()) {
>+            T extractor = extractors.get(klass.getName());
>+            if (extractor != null)
>+                return extractor;
>+        }
>+        return null;
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/ServletExtractors.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/ServletExtractors.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/ServletExtractors.java	(working copy)
>@@ -0,0 +1,93 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl;
>+
>+import java.util.HashMap;
>+import java.util.List;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.impl.servlet.GenericServletExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.HttpServletExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.catalina.CatalinaRequestExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.catalina.CatalinaRequestFacadeExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.catalina.CatalinaSessionExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.catalina.CatalinaWrapperFacadeServletConfigExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.catalina.CatalinaWrapperServletConfigExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.jasper.JasperJspServletExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.undertow.UndertowRequestExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.undertow.UndertowServletConfigExtractor;
>+import org.eclipse.mat.javaee.impl.servlet.undertow.UndertowSessionExtractor;
>+import org.eclipse.mat.javaee.servlet.api.RequestExtractor;
>+import org.eclipse.mat.javaee.servlet.api.ServletConfigExtractor;
>+import org.eclipse.mat.javaee.servlet.api.ServletExtractor;
>+import org.eclipse.mat.javaee.servlet.api.SessionExtractor;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class ServletExtractors extends Extractors {
>+    public static List<Integer> findHttpSessions(ISnapshot snapshot) throws SnapshotException {
>+        return findObjects(snapshot, SESSION_EXTRACTORS);
>+    }
>+
>+    public static List<Integer> findHttpRequests(ISnapshot snapshot) throws SnapshotException {
>+        return findObjects(snapshot, REQUEST_EXTRACTORS);
>+    }
>+
>+    public static List<Integer> findServlets(ISnapshot snapshot) throws SnapshotException {
>+        return findObjects(snapshot, SERVLET_EXTRACTORS);
>+    }
>+
>+    public static SessionExtractor getSessionExtractor(IObject object) {
>+        return getExtractor(object, SESSION_EXTRACTORS);
>+    }
>+
>+    public static RequestExtractor getRequestExtractor(IObject object) {
>+        return getExtractor(object, REQUEST_EXTRACTORS);
>+    }
>+
>+    public static ServletExtractor getServletExtractor(IObject object) {
>+        return getExtractor(object, SERVLET_EXTRACTORS);
>+    }
>+
>+    public static ServletConfigExtractor getServletConfigExtractor(IObject object) {
>+        return getExtractor(object, SERVLET_CONFIG_EXTRACTORS);
>+    }
>+
>+
>+
>+    private static final Map<String, SessionExtractor> SESSION_EXTRACTORS;
>+    private static final Map<String, RequestExtractor> REQUEST_EXTRACTORS;
>+    private static final Map<String, ServletExtractor> SERVLET_EXTRACTORS;
>+    private static final Map<String, ServletConfigExtractor> SERVLET_CONFIG_EXTRACTORS;
>+    static {
>+        SESSION_EXTRACTORS = new HashMap<String, SessionExtractor>();
>+        SESSION_EXTRACTORS.put("org.apache.catalina.session.StandardSession", new CatalinaSessionExtractor());
>+        SESSION_EXTRACTORS.put("org.jboss.web.tomcat.service.session.SessionBasedClusteredSession", new CatalinaSessionExtractor());
>+        SESSION_EXTRACTORS.put("io.undertow.server.session.InMemorySessionManager$InMemorySession", new UndertowSessionExtractor());
>+
>+        /* Keep this in sync with the annotations on HttpServletRequestResolver */
>+        REQUEST_EXTRACTORS = new HashMap<String, RequestExtractor>();
>+        REQUEST_EXTRACTORS.put("org.apache.catalina.connector.Request", new CatalinaRequestExtractor());
>+        REQUEST_EXTRACTORS.put("org.apache.catalina.connector.RequestFacade", new CatalinaRequestFacadeExtractor());
>+        REQUEST_EXTRACTORS.put("io.undertow.servlet.spec.HttpServletRequestImpl", new UndertowRequestExtractor());
>+
>+        SERVLET_EXTRACTORS = new HashMap<String, ServletExtractor>();
>+        SERVLET_EXTRACTORS.put("org.apache.jasper.runtime.HttpJspBase", new JasperJspServletExtractor());
>+        SERVLET_EXTRACTORS.put("javax.servlet.http.HttpServlet", new HttpServletExtractor());
>+        SERVLET_EXTRACTORS.put("javax.servlet.GenericServlet", new GenericServletExtractor());
>+
>+        SERVLET_CONFIG_EXTRACTORS = new HashMap<String, ServletConfigExtractor>();
>+        SERVLET_CONFIG_EXTRACTORS.put("io.undertow.servlet.spec.ServletConfigImpl", new UndertowServletConfigExtractor());
>+        SERVLET_CONFIG_EXTRACTORS.put("org.apache.catalina.core.StandardWrapperFacade", new CatalinaWrapperFacadeServletConfigExtractor());
>+        SERVLET_CONFIG_EXTRACTORS.put("org.apache.catalina.core.StandardWrapper", new CatalinaWrapperServletConfigExtractor());
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/ejb/jboss/JBossStatefulEjbExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/ejb/jboss/JBossStatefulEjbExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/ejb/jboss/JBossStatefulEjbExtractor.java	(working copy)
>@@ -0,0 +1,182 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.ejb.jboss;
>+
>+import static org.eclipse.mat.javaee.Utils.findStaticObjectField;
>+import static org.eclipse.mat.javaee.Utils.iterateMap;
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+import static org.eclipse.mat.javaee.Utils.resolveMapValueByKeyIdentity;
>+
>+import java.util.HashMap;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.inspections.collections.CollectionUtil;
>+import org.eclipse.mat.inspections.collections.CollectionUtil.Info;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.ejb.api.StatefulEjbExtractor;
>+import org.eclipse.mat.snapshot.model.IClass;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class JBossStatefulEjbExtractor implements StatefulEjbExtractor {
>+    public String getComponentName(IObject component) {
>+        try {
>+            return (resolveIObject(component, "componentName")).getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public String getModuleName(IObject component) {
>+        try {
>+            return (resolveIObject(component, "moduleName")).getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public String getApplicationName(IObject component) {
>+        try {
>+            return (resolveIObject(component, "applicationName")).getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public String getDistinctName(IObject component) {
>+        try {
>+            return (resolveIObject(component, "distinctName")).getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public IClass getComponentClass(IObject component) {
>+        try {
>+            return ((IClass)resolveIObject(component, "componentClass"));
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public Integer getInstanceCount(IObject component) {
>+        try {
>+            IObject instanceMap = resolveInstanceMap(component);
>+            if (instanceMap == null)
>+                return null;
>+
>+            return CollectionUtil.getInfo(instanceMap).getSize(instanceMap);
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public Map<IObject,IObject> getInstances(IObject component) {
>+        try {
>+            IObject instanceMap = resolveInstanceMap(component);
>+            if (instanceMap == null)
>+                return null;
>+
>+            Info info = CollectionUtil.getInfo(instanceMap);
>+            Map<IObject,IObject> instances = new HashMap<IObject,IObject>(info.getSize(instanceMap));
>+            for (Map.Entry<IObject,IObject> entry: iterateMap(instanceMap)) {
>+                IObject value = entry.getValue();
>+                final IObject instance;
>+                if (value.getClazz().getName().equals("org.jboss.as.ejb3.cache.impl.backing.NonPassivatingBackingCacheEntry")) {
>+                    instance = getAS7Instance(value);
>+                } else if (value.getClazz().getName().equals("org.jboss.as.ejb3.cache.simple.SimpleCache$Entry")) {
>+                    instance = getWildfly8Instance(value);
>+                } else {
>+                    JavaEEPlugin.warning("Unexpected cahce entry class: " + value.getClazz().getName());
>+                    continue;
>+                }
>+
>+                instances.put(entry.getKey(), instance);
>+            }
>+            return instances;
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    private IObject resolveInstanceMap(IObject component) {
>+        try {
>+            IObject cache = resolveIObject(component, "cache");
>+            String cacheClassName = cache.getClazz().getName();
>+            if (cacheClassName.equals("org.jboss.as.ejb3.cache.impl.SimpleCache")) {
>+                return resolveAS7InstanceMap(cache);
>+            } else if (cacheClassName.equals("org.jboss.as.ejb3.cache.simple.SimpleCache")) {
>+                return resolveWildfly8InstanceMap(cache);
>+            } else {
>+                JavaEEPlugin.error("Unexpected cache class: " + cache.getClazz().getName());
>+                return null;
>+            }
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    private IObject resolveAS7InstanceMap(IObject cache) throws SnapshotException {
>+        IObject backingCache = resolveIObject(cache, "backingCache");
>+        if (!backingCache.getClazz().getName().equals("org.jboss.as.ejb3.cache.impl.backing.NonPassivatingBackingCacheImpl")) {
>+            JavaEEPlugin.error("Unexpected backing cache class: " + backingCache.getClazz().getName());
>+            return null;
>+        }
>+
>+        return resolveIObject(backingCache, "cache");
>+    }
>+
>+    private IObject getAS7Instance(IObject value) throws SnapshotException {
>+        IObject componentInstance = resolveIObject(value, "wrapped");
>+        if (!componentInstance.getClazz().getName().equals("org.jboss.as.ejb3.component.stateful.StatefulSessionComponentInstance")) {
>+            JavaEEPlugin.warning("Unexpected wrapper class: " + componentInstance.getClazz().getName());
>+            return null;
>+        }
>+        return resolveIObject(componentInstance, "instanceReference", "value", "instance");
>+    }
>+
>+    private IObject resolveWildfly8InstanceMap(IObject cache) throws SnapshotException {
>+        return resolveIObject(cache, "entries");
>+    }
>+
>+    private IObject getWildfly8Instance(IObject value) throws SnapshotException {
>+        IObject componentInstance = resolveIObject(value, "value");
>+        if (!componentInstance.getClazz().getName().equals("org.jboss.as.ejb3.component.stateful.StatefulSessionComponentInstance")) {
>+            JavaEEPlugin.warning("Unexpected wrapper class: " + componentInstance.getClazz().getName());
>+            return null;
>+        }
>+        IObject data = resolveIObject(componentInstance, "instanceData");
>+        IObject classBasicComponentInstanceKey = findStaticObjectField(componentInstance.getClazz(), "INSTANCE_KEY");
>+        return extractWildflyManagedReference(resolveMapValueByKeyIdentity(data, classBasicComponentInstanceKey));
>+    }
>+
>+    private IObject extractWildflyManagedReference(IObject ref) throws SnapshotException {
>+        String className = ref.getClazz().getName();
>+        if (className.equals("org.jboss.as.weld.injection.WeldManagedReferenceFactory$WeldManagedReference")) {
>+            return resolveIObject(ref, "instance");
>+        } else if (className.equals("org.jboss.as.ejb3.timerservice.TimerServiceBindingSource$TimerServiceManagedReference")) {
>+            // this requires invoking code at runtime, can't do it.
>+            JavaEEPlugin.info("Cannot extract from TimerServiceManagedReference");
>+            return null;
>+        } else {
>+            JavaEEPlugin.warning("Unexpected reference class" + className);
>+            return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/GenericServletExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/GenericServletExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/GenericServletExtractor.java	(working copy)
>@@ -0,0 +1,26 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet;
>+
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.servlet.api.ServletExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class GenericServletExtractor implements ServletExtractor {
>+    public String getName(IObject object) {
>+        JavaEEPlugin.warning("Do not know how to get name for " + object.getDisplayName());
>+        return "- Unknown -";
>+    }
>+
>+    public String getServletClass(IObject object) {
>+        return object.getClazz().getName();
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/HttpServletExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/HttpServletExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/HttpServletExtractor.java	(working copy)
>@@ -0,0 +1,37 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet;
>+
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.javaee.servlet.api.ServletConfigExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class HttpServletExtractor extends GenericServletExtractor {
>+    @Override
>+    public String getName(IObject object) {
>+        try {
>+            IObject config = resolveIObject(object, "config");
>+            if (config == null) {
>+                JavaEEPlugin.warning("Did not find servlet config for " + object.getDisplayName());
>+                return null;
>+            }
>+            ServletConfigExtractor extractor = ServletExtractors.getServletConfigExtractor(config);
>+            return (extractor != null) ? extractor.getName(config) : null;
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaRequestExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaRequestExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaRequestExtractor.java	(working copy)
>@@ -0,0 +1,116 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.catalina;
>+
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import java.io.UnsupportedEncodingException;
>+import java.util.Arrays;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.servlet.api.RequestExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+import org.eclipse.mat.snapshot.model.IPrimitiveArray;
>+
>+public class CatalinaRequestExtractor implements RequestExtractor {
>+    public String getRequestUri(IObject request) {
>+        try {
>+            IObject decodedURI = resolveIObject(request,  "coyoteRequest", "decodedUriMB");
>+            String uri = helperMessageBytesToString(decodedURI);
>+            if (uri != null)
>+                return uri;
>+
>+            // not in use
>+            return null;
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.warning("Unable to resolve URI", e);
>+            return null;
>+        }
>+    }
>+
>+    public boolean isInUse(IObject request) {
>+        try {
>+            IObject context = resolveIObject(request, "context");
>+            return context != null;
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.warning("Unable to request context", e);
>+            return false;
>+        }
>+    }
>+
>+    /* helpers*/
>+
>+    private String helperMessageBytesToString(IObject uri) throws SnapshotException {
>+        if (((Boolean) uri.resolveValue("hasStrValue")).booleanValue()) {
>+            return ((IObject)uri.resolveValue("strValue")).toString();
>+        }
>+
>+        int type = ((Integer)uri.resolveValue("type")).intValue();
>+        switch (type) {
>+        case 3:
>+            return helperCharChunkToString(resolveIObject(uri, "charC"));
>+        case 2:
>+            return helperByteChunkToString(resolveIObject(uri, "byteC"));
>+        case 0:
>+            // unused
>+            return null;
>+        default:
>+            JavaEEPlugin.warning("Unexpected Catalina message bytes type " + type);
>+            return null;
>+        }
>+    }
>+
>+    private String helperCharChunkToString(IObject chunk) throws SnapshotException {
>+        Object ex = extractFromChunk(chunk);
>+        if (ex instanceof String) {
>+            return (String)ex;
>+        } else if (ex instanceof char[]) {
>+            char[] buff = (char[])ex;
>+            return new String(buff);
>+        } else {
>+            JavaEEPlugin.error("Unexpected chunk class " + ex.getClass().getName());
>+            return null;
>+        }
>+    }
>+
>+    private String helperByteChunkToString(IObject chunk) throws SnapshotException {
>+        byte[] buff = (byte[])extractFromChunk(chunk);
>+
>+        IObject enc = resolveIObject(chunk, "enc");
>+        final String encoding;
>+        if (enc == null) {
>+            encoding = "ISO-8859-1";
>+        } else {
>+            encoding = enc.getClassSpecificName();
>+        }
>+
>+        try {
>+            return new String(buff, 0, buff.length, encoding);
>+        } catch (UnsupportedEncodingException e) {
>+            return "Undecodable buffer (" + encoding + "):" + Arrays.toString(buff);
>+        }
>+    }
>+
>+    private Object extractFromChunk(IObject chunk) throws SnapshotException {
>+        IPrimitiveArray buff = (IPrimitiveArray)chunk.resolveValue("buff");
>+        if (buff == null)
>+            return null;
>+
>+        int start = (Integer)chunk.resolveValue("start");
>+        int end = (Integer)chunk.resolveValue("end");
>+
>+        if (start == end)
>+            return "";
>+
>+        return buff.getValueArray(start, end - start);
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaRequestFacadeExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaRequestFacadeExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaRequestFacadeExtractor.java	(working copy)
>@@ -0,0 +1,50 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.catalina;
>+
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.javaee.servlet.api.RequestExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class CatalinaRequestFacadeExtractor implements RequestExtractor {
>+    public String getRequestUri(IObject requestFacade) {
>+        IObject root = findRootRequest(requestFacade);
>+        return "Wrapper: " + ServletExtractors.getRequestExtractor(root).getRequestUri(root);
>+    }
>+
>+    public boolean isInUse(IObject requestFacade) {
>+        IObject root = findRootRequest(requestFacade);
>+        return ServletExtractors.getRequestExtractor(root).isInUse(root);
>+    }
>+
>+    private IObject findRootRequest(IObject requestFacade) {
>+        try {
>+            for(IObject current = requestFacade;;) {
>+                IObject baseRequest = resolveIObject(current, "request");
>+                String className = baseRequest.getClazz().getName();
>+                if (className.equals("org.apache.catalina.connector.RequestFacade"))
>+                    current = baseRequest;
>+                else if (className.equals("org.apache.catalina.connector.Request")) {
>+                    return baseRequest;
>+                } else
>+                    JavaEEPlugin.error("unhandled class: " + className);
>+                    return null;
>+            }
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaSessionExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaSessionExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaSessionExtractor.java	(working copy)
>@@ -0,0 +1,62 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.catalina;
>+
>+import static org.eclipse.mat.javaee.Utils.iterateMap;
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import java.util.ArrayList;
>+import java.util.List;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.inspections.collections.CollectionUtil;
>+import org.eclipse.mat.inspections.collections.CollectionUtil.Info;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.servlet.api.SessionAttributeData;
>+import org.eclipse.mat.javaee.servlet.api.SessionExtractor;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IObject;
>+import org.eclipse.mat.util.VoidProgressListener;
>+
>+public class CatalinaSessionExtractor implements SessionExtractor {
>+    // accessCount, thisAccessedTime, principal, notes, isValid, isNew, maxInactiveInterval, manager, listeners, lastAccessedTime, id, facade, expiring, creationTime, authType
>+
>+    public List<SessionAttributeData> buildSessionAttributes(IObject object) {
>+        try {
>+            IObject attrs = resolveIObject(object, "attributes");
>+            Info mapInfo = CollectionUtil.getInfo(attrs);
>+            String keyField = mapInfo.getEntryKeyField();
>+            String valueField = mapInfo.getEntryValueField();
>+            ISnapshot snapshot = object.getSnapshot();
>+
>+            ArrayList<SessionAttributeData> results = new ArrayList<SessionAttributeData>();
>+
>+            for (Map.Entry<IObject,IObject> entry: iterateMap(attrs)) {
>+                results.add(new SessionAttributeData(entry.getKey(), entry.getValue()));
>+            }
>+
>+            return results;
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.warning("Unable to list session attributes",e);
>+            return new ArrayList<SessionAttributeData>();
>+        }
>+    }
>+
>+    public String getSessionId(IObject object) {
>+        try {
>+            return resolveIObject(object, "id").getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.warning("Unable to resolve id", e);
>+            return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaWrapperFacadeServletConfigExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaWrapperFacadeServletConfigExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaWrapperFacadeServletConfigExtractor.java	(working copy)
>@@ -0,0 +1,39 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.catalina;
>+
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.javaee.servlet.api.ServletConfigExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class CatalinaWrapperFacadeServletConfigExtractor implements ServletConfigExtractor {
>+    public String getName(IObject config) {
>+        try {
>+            IObject wrapper = resolveIObject(config, "wrapper");
>+            if (wrapper != null)
>+                return ServletExtractors.getServletConfigExtractor(wrapper).getName(wrapper);
>+
>+            IObject subconfig = resolveIObject(config, "config");
>+            if (subconfig != null)
>+                return ServletExtractors.getServletConfigExtractor(subconfig).getName(subconfig);
>+
>+            JavaEEPlugin.warning("Unhandled Cataline wrapper facade " + config.getDisplayName());
>+            return null;
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaWrapperServletConfigExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaWrapperServletConfigExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/catalina/CatalinaWrapperServletConfigExtractor.java	(working copy)
>@@ -0,0 +1,29 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.catalina;
>+
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.servlet.api.ServletConfigExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class CatalinaWrapperServletConfigExtractor implements ServletConfigExtractor {
>+    public String getName(IObject config) {
>+        try {
>+            return resolveIObject(config, "name").getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/jasper/JasperJspServletExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/jasper/JasperJspServletExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/jasper/JasperJspServletExtractor.java	(working copy)
>@@ -0,0 +1,37 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.jasper;
>+
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.impl.servlet.HttpServletExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+
>+public class JasperJspServletExtractor extends HttpServletExtractor {
>+    private static final String JSP_CLASS_PREFIX = "org.apache.jsp.";
>+
>+    @Override
>+    public String getName(IObject object) {
>+        return getServletClass(object);
>+    }
>+
>+    @Override
>+    public String getServletClass(IObject object) {
>+        String className = super.getServletClass(object);
>+        if (!className.startsWith(JSP_CLASS_PREFIX)) {
>+            JavaEEPlugin.warning("Unhandled JSP class prefix: " + className);
>+            return className;
>+        }
>+
>+        return "JSP: " + className.substring(JSP_CLASS_PREFIX.length()).replace('.', '/').replace('_', '.');
>+    }
>+
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowRequestExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowRequestExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowRequestExtractor.java	(working copy)
>@@ -0,0 +1,33 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.undertow;
>+
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.servlet.api.RequestExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class UndertowRequestExtractor implements RequestExtractor {
>+    public String getRequestUri(IObject request) {
>+        try {
>+            return resolveIObject(request, "exchange", "requestURI").getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public boolean isInUse(IObject request) {
>+        return true;
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowServletConfigExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowServletConfigExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowServletConfigExtractor.java	(working copy)
>@@ -0,0 +1,36 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.undertow;
>+
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.servlet.api.ServletConfigExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class UndertowServletConfigExtractor implements ServletConfigExtractor {
>+    public String getName(IObject config) {
>+        try {
>+            IObject info = resolveIObject(config, "servletInfo");
>+            if (info == null) {
>+                JavaEEPlugin.warning("Missing 'servletInfo' field from class " + config.getClazz().getName());
>+                return null;
>+            }
>+
>+            return resolveIObject(info, "name").getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowSessionExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowSessionExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/impl/servlet/undertow/UndertowSessionExtractor.java	(working copy)
>@@ -0,0 +1,53 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.impl.servlet.undertow;
>+
>+import static org.eclipse.mat.javaee.Utils.iterateMap;
>+import static org.eclipse.mat.javaee.Utils.resolveIObject;
>+
>+import java.util.ArrayList;
>+import java.util.List;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.inspections.collections.CollectionUtil;
>+import org.eclipse.mat.inspections.collections.CollectionUtil.Info;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.servlet.api.SessionAttributeData;
>+import org.eclipse.mat.javaee.servlet.api.SessionExtractor;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class UndertowSessionExtractor implements SessionExtractor {
>+    public List<SessionAttributeData> buildSessionAttributes(IObject session) {
>+        try {
>+            IObject attrs = resolveIObject(session, "attributes");
>+            Info info = CollectionUtil.getInfo(attrs);
>+
>+            List<SessionAttributeData> nodes = new ArrayList<SessionAttributeData>(info.getSize(attrs));
>+            for (Map.Entry<IObject,IObject> entry: iterateMap(attrs)) {
>+                nodes.add(new SessionAttributeData(entry.getKey(), entry.getValue()));
>+            }
>+            return nodes;
>+        } catch (SnapshotException e)  {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    public String getSessionId(IObject session) {
>+        try {
>+            return resolveIObject(session, "session", "sessionId").getClassSpecificName();
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/RequestExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/RequestExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/RequestExtractor.java	(working copy)
>@@ -0,0 +1,20 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.api;
>+
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public interface RequestExtractor {
>+    //List<SessionAttributeNode> buildRequestAttributes(IObject object);
>+    String getRequestUri(IObject request);
>+
>+    boolean isInUse(IObject request);
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/ServletConfigExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/ServletConfigExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/ServletConfigExtractor.java	(working copy)
>@@ -0,0 +1,17 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.api;
>+
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public interface ServletConfigExtractor {
>+    String getName(IObject config);
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/ServletExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/ServletExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/ServletExtractor.java	(working copy)
>@@ -0,0 +1,18 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.api;
>+
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public interface ServletExtractor {
>+    String getName(IObject object);
>+    String getServletClass(IObject object);
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/SessionAttributeData.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/SessionAttributeData.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/SessionAttributeData.java	(working copy)
>@@ -0,0 +1,31 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.api;
>+
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public class SessionAttributeData {
>+    private final IObject key;
>+    private final IObject value;
>+
>+    public SessionAttributeData(IObject key, IObject value) {
>+        this.key = key;
>+        this.value = value;
>+    }
>+
>+    public IObject getKey() {
>+        return key;
>+    }
>+
>+    public IObject getValue() {
>+        return value;
>+    }
>+}
>\ No newline at end of file
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/SessionExtractor.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/SessionExtractor.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/api/SessionExtractor.java	(working copy)
>@@ -0,0 +1,20 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.api;
>+
>+import java.util.List;
>+
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+public interface SessionExtractor {
>+    List<SessionAttributeData> buildSessionAttributes(IObject object);
>+    String getSessionId(IObject object);
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpRequestQuery.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpRequestQuery.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpRequestQuery.java	(working copy)
>@@ -0,0 +1,102 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.query;
>+
>+import java.util.List;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.IOverviewNode;
>+import org.eclipse.mat.javaee.SimpleObjectQuery;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.query.Column;
>+import org.eclipse.mat.query.annotations.Category;
>+import org.eclipse.mat.query.annotations.CommandName;
>+import org.eclipse.mat.query.annotations.Help;
>+import org.eclipse.mat.query.annotations.Name;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+@Category("Enterprise Java/Web")
>+@Name("HTTP Requests")
>+@CommandName("javaee-http-requests")
>+@Help("Shows HTTP requests")
>+public class HttpRequestQuery extends SimpleObjectQuery<HttpRequestQuery.RequestOverviewNode> {
>+    private static final Column[] COLUMNS = {
>+        new Column("Name", String.class),
>+        new Column("Value", Object.class),
>+        new Column("Size", Long.class),
>+    };
>+
>+
>+    final static class RequestOverviewNode implements IOverviewNode {
>+        private final IObject request;
>+
>+        public RequestOverviewNode(IObject request) {
>+            this.request = request;
>+        }
>+
>+        public long getRetainedHeap() {
>+            return request.getRetainedHeapSize();
>+        }
>+
>+        public int getId() {
>+            return request.getObjectId();
>+        }
>+
>+        public String getUri() {
>+            return ServletExtractors.getRequestExtractor(request).getRequestUri(request);
>+        }
>+
>+        public boolean isInUse() {
>+            return ServletExtractors.getRequestExtractor(request).isInUse(request);
>+        }
>+    }
>+
>+
>+
>+    public HttpRequestQuery() {
>+        super(RequestOverviewNode.class);
>+    }
>+
>+    protected List<Integer> findObjects(ISnapshot snapshot) throws SnapshotException {
>+        return ServletExtractors.findHttpRequests(snapshot);
>+    }
>+
>+    protected RequestOverviewNode createOverviewNode(IObject obj) {
>+        return new RequestOverviewNode(obj);
>+    }
>+
>+    protected boolean overviewHasChildren(RequestOverviewNode row) {
>+        return false;
>+    }
>+
>+    protected Column[] getColumns() {
>+        return COLUMNS;
>+    }
>+
>+    @Override
>+    protected Object getOverviewColumnValue(RequestOverviewNode row, int columnIndex) {
>+        boolean inUse = row.isInUse();
>+        switch (columnIndex) {
>+        case 0:
>+            if (inUse)
>+                return row.getUri();
>+            else
>+                return "- Not in use -";
>+        case 1:
>+            return null;
>+        case 2:
>+            return row.getRetainedHeap();
>+        default:
>+            return super.getOverviewColumnValue(row, columnIndex);
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpSessionAttributesQuery.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpSessionAttributesQuery.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpSessionAttributesQuery.java	(working copy)
>@@ -0,0 +1,229 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.query;
>+
>+import java.util.ArrayList;
>+import java.util.HashMap;
>+import java.util.List;
>+import java.util.Map;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.BaseObjectQuery;
>+import org.eclipse.mat.javaee.GraftedResultTree;
>+import org.eclipse.mat.javaee.IOverviewNode;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.javaee.servlet.api.SessionAttributeData;
>+import org.eclipse.mat.javaee.servlet.api.SessionExtractor;
>+import org.eclipse.mat.query.Column;
>+import org.eclipse.mat.query.IContextObject;
>+import org.eclipse.mat.query.IResultTree;
>+import org.eclipse.mat.query.annotations.Category;
>+import org.eclipse.mat.query.annotations.CommandName;
>+import org.eclipse.mat.query.annotations.Help;
>+import org.eclipse.mat.query.annotations.Name;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IObject;
>+import org.eclipse.mat.snapshot.query.ObjectListResult;
>+
>+@Category("Enterprise Java/Web")
>+@Name("HTTP Session attributes")
>+@CommandName("javaee-http-session-attributes")
>+@Help("Shows HTTP session attributes")
>+public class HttpSessionAttributesQuery extends BaseObjectQuery<HttpSessionAttributesQuery.SessionAttributeOverviewNode> {
>+    private static final Column[] COLUMNS = {
>+        new Column("Name", String.class),
>+        new Column("Value", Object.class),
>+        new Column("Size", Long.class),
>+    };
>+    private static final int[] GRAFTED_COLUMN_MAPPING = {0, 1, 2};
>+
>+
>+    private static class SessionAttributeNode {
>+        public Map<String, IObject> sessionValues = new HashMap<String, IObject>();
>+        @SuppressWarnings("unused") public long retainedHeap = 0;
>+    };
>+
>+    final static class SessionAttributeOverviewNode implements IOverviewNode {
>+        private final IObject object;
>+        private SessionAttributeNode data = null;
>+
>+        public SessionAttributeOverviewNode(IObject object, SessionAttributeNode data) {
>+            this.object = object;
>+            this.data = data;
>+        }
>+
>+        public int getId() {
>+            return object.getObjectId();
>+        }
>+
>+        public long getRetainedHeap() {
>+            return object.getRetainedHeapSize();
>+        }
>+
>+        public String getName() {
>+            return object.getClassSpecificName();
>+        }
>+
>+        public List<SessionAttributeValueNode> getSessionValues() {
>+            List<SessionAttributeValueNode> values = new ArrayList<SessionAttributeValueNode>();
>+            for (Map.Entry<String, IObject> e: data.sessionValues.entrySet()) {
>+                values.add(new SessionAttributeValueNode(e.getKey(), e.getValue()));
>+            }
>+            return values;
>+        }
>+    }
>+
>+    private static class SessionAttributeValueNode {
>+        private final String sessionId;
>+        private final IObject value;
>+
>+        public SessionAttributeValueNode(String sessionId, IObject value) {
>+            this.sessionId = sessionId;
>+            this.value = value;
>+        }
>+
>+        public String getSessionId() {
>+            return sessionId;
>+        }
>+
>+        public IObject getValue() {
>+            return value;
>+        }
>+
>+    };
>+
>+
>+
>+    public HttpSessionAttributesQuery() {
>+        super(SessionAttributeOverviewNode.class);
>+    }
>+
>+    protected List<Integer> findObjects(ISnapshot snapshot) throws SnapshotException {
>+        return ServletExtractors.findHttpSessions(snapshot);
>+    }
>+
>+    protected List<SessionAttributeOverviewNode> buildResults(List<Integer> source) throws SnapshotException {
>+        Map<IObject, SessionAttributeNode> attributes = new HashMap<IObject, SessionAttributeNode>();
>+
>+        for (int id: source) {
>+            IObject obj = snapshot.getObject(id);
>+            SessionExtractor extractor = ServletExtractors.getSessionExtractor(obj);
>+            if (extractor != null) {
>+                final String sessionId = extractor.getSessionId(obj);
>+                for (SessionAttributeData data: extractor.buildSessionAttributes(obj)) {
>+                    SessionAttributeNode node = attributes.get(data.getKey());
>+                    if (node == null) {
>+                        node = new SessionAttributeNode();
>+                        attributes.put(data.getKey(), node);
>+                    }
>+                    node.sessionValues.put(sessionId, data.getValue());
>+                    node.retainedHeap += data.getValue().getRetainedHeapSize();
>+                }
>+            }
>+        }
>+
>+        List<SessionAttributeOverviewNode> results = new ArrayList<SessionAttributeOverviewNode>(attributes.size());
>+        for (Map.Entry<IObject, SessionAttributeNode> e: attributes.entrySet()) {
>+            results.add(new SessionAttributeOverviewNode(e.getKey(), e.getValue()));
>+        }
>+        return results;
>+    }
>+
>+    protected boolean overviewHasChildren(SessionAttributeOverviewNode row) {
>+        return true;
>+    }
>+
>+    protected Column[] getColumns() {
>+        return COLUMNS;
>+    }
>+
>+    @Override
>+    protected Object getOverviewColumnValue(SessionAttributeOverviewNode row, int columnIndex) {
>+        switch (columnIndex) {
>+        case 0:
>+            return row.getName();
>+        case 1:
>+            return null;
>+        case 2:
>+            return row.getRetainedHeap();
>+        default:
>+            return super.getOverviewColumnValue(row, columnIndex);
>+        }
>+    }
>+
>+    @Override
>+    protected Object getColumnValue(Object row, int columnIndex) {
>+        if (row instanceof SessionAttributeValueNode) {
>+            SessionAttributeValueNode node = (SessionAttributeValueNode)row;
>+            switch (columnIndex) {
>+            case 0:
>+                return node.getSessionId();
>+            case 1:
>+                return node.getValue();
>+            case 2:
>+                return node.getValue().getRetainedHeapSize();
>+            default:
>+                JavaEEPlugin.error("Unexpected column index " + columnIndex);
>+                return null;
>+            }
>+        } else {
>+            return super.getColumnValue(row, columnIndex);
>+        }
>+    }
>+
>+    @Override
>+    protected List<?> getOverviewChildren(SessionAttributeOverviewNode row) {
>+        return row.getSessionValues();
>+    }
>+
>+    @Override
>+    protected boolean hasChildren(Object row) {
>+        if (row instanceof SessionAttributeValueNode) {
>+            SessionAttributeValueNode node = (SessionAttributeValueNode) row;
>+            return !node.getValue().getOutboundReferences().isEmpty();
>+        } else {
>+            return super.hasChildren(row);
>+        }
>+    }
>+
>+    @Override
>+    protected List<?> getChildren(Object row) {
>+        try {
>+            if (row instanceof SessionAttributeValueNode) {
>+                SessionAttributeValueNode node = (SessionAttributeValueNode) row;
>+                // Create an outbound tree and graft it onto the main tree
>+                int[] outbounds = node.getValue().getSnapshot().getOutboundReferentIds(node.getValue().getObjectId());
>+                IResultTree subtree = new ObjectListResult.Outbound(node.getValue().getSnapshot(), outbounds);
>+                return GraftedResultTree.graft(subtree, node.getValue(), GRAFTED_COLUMN_MAPPING);
>+            } else {
>+                return super.getChildren(row);
>+            }
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    @Override
>+    protected IContextObject getContext(Object row) {
>+        if (row instanceof SessionAttributeValueNode) {
>+            final SessionAttributeValueNode node = (SessionAttributeValueNode) row;
>+            return new IContextObject() {
>+                public int getObjectId() {
>+                    return node.getValue().getObjectId();
>+                }
>+            };
>+        } else {
>+            return super.getContext(row);
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpSessionQuery.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpSessionQuery.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/HttpSessionQuery.java	(working copy)
>@@ -0,0 +1,176 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.query;
>+
>+import java.util.List;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.GraftedResultTree;
>+import org.eclipse.mat.javaee.IOverviewNode;
>+import org.eclipse.mat.javaee.JavaEEPlugin;
>+import org.eclipse.mat.javaee.SimpleObjectQuery;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.javaee.servlet.api.SessionAttributeData;
>+import org.eclipse.mat.query.Column;
>+import org.eclipse.mat.query.IContextObject;
>+import org.eclipse.mat.query.IResultTree;
>+import org.eclipse.mat.query.annotations.Category;
>+import org.eclipse.mat.query.annotations.CommandName;
>+import org.eclipse.mat.query.annotations.Help;
>+import org.eclipse.mat.query.annotations.Name;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IObject;
>+import org.eclipse.mat.snapshot.query.ObjectListResult;
>+
>+@Category("Enterprise Java/Web")
>+@Name("HTTP Sessions")
>+@CommandName("javaee-http-sessions")
>+@Help("Shows HTTP sessions")
>+public class HttpSessionQuery extends SimpleObjectQuery<HttpSessionQuery.SessionOverviewNode> {
>+    private static final Column[] COLUMNS = {
>+        new Column("Name", String.class),
>+        new Column("Value", Object.class),
>+        new Column("Size", Long.class),
>+    };
>+    private static final int[] GRAFTED_COLUMN_MAPPING = {0, 1, 2};
>+
>+
>+    final static class SessionOverviewNode implements IOverviewNode {
>+        private final IObject object;
>+        private List<SessionAttributeData> attributes = null;
>+
>+        public SessionOverviewNode(IObject object) {
>+            this.object = object;
>+        }
>+
>+        public int getId() {
>+            return object.getObjectId();
>+        }
>+
>+        public long getRetainedHeap() {
>+            return object.getRetainedHeapSize();
>+        }
>+
>+        public synchronized List<SessionAttributeData> getAttributes() {
>+            if (attributes == null) {
>+                attributes = ServletExtractors.getSessionExtractor(object).buildSessionAttributes(object);
>+            }
>+            return attributes;
>+        }
>+
>+        public String getName() {
>+            return ServletExtractors.getSessionExtractor(object).getSessionId(object);
>+        }
>+    }
>+
>+
>+
>+    public HttpSessionQuery() {
>+        super(SessionOverviewNode.class);
>+    }
>+
>+    protected List<Integer> findObjects(ISnapshot snapshot) throws SnapshotException {
>+        return ServletExtractors.findHttpSessions(snapshot);
>+    }
>+
>+    protected SessionOverviewNode createOverviewNode(IObject obj) {
>+        return new SessionOverviewNode(obj);
>+    }
>+
>+    protected boolean overviewHasChildren(SessionOverviewNode row) {
>+        return true;
>+    }
>+
>+    protected Column[] getColumns() {
>+        return COLUMNS;
>+    }
>+
>+    @Override
>+    protected Object getOverviewColumnValue(SessionOverviewNode row, int columnIndex) {
>+        switch (columnIndex) {
>+        case 0:
>+            return row.getName();
>+        case 1:
>+            return null;
>+        case 2:
>+            return row.getRetainedHeap();
>+        default:
>+            return super.getOverviewColumnValue(row, columnIndex);
>+        }
>+    }
>+
>+    @Override
>+    protected Object getColumnValue(Object row, int columnIndex) {
>+        if (row instanceof SessionAttributeData) {
>+            SessionAttributeData node = (SessionAttributeData)row;
>+            switch (columnIndex) {
>+            case 0:
>+                return node.getKey().getClassSpecificName();
>+            case 1:
>+                return node.getValue();
>+            case 2:
>+                return node.getValue().getRetainedHeapSize();
>+            default:
>+                JavaEEPlugin.error("Unexpected column index " + columnIndex);
>+                return null;
>+            }
>+        } else {
>+            return super.getColumnValue(row, columnIndex);
>+        }
>+    }
>+
>+    @Override
>+    protected List<?> getOverviewChildren(SessionOverviewNode row) {
>+        return row.getAttributes();
>+    }
>+
>+    @Override
>+    protected boolean hasChildren(Object row) {
>+        if (row instanceof SessionAttributeData) {
>+            SessionAttributeData node = (SessionAttributeData) row;
>+            return !node.getValue().getOutboundReferences().isEmpty();
>+        } else {
>+            return super.hasChildren(row);
>+        }
>+    }
>+
>+    @Override
>+    protected List<?> getChildren(Object row) {
>+        try {
>+            if (row instanceof SessionAttributeData) {
>+                SessionAttributeData node = (SessionAttributeData) row;
>+                // Create an outbound tree and graft it onto the main tree
>+                int[] outbounds = node.getValue().getSnapshot().getOutboundReferentIds(node.getValue().getObjectId());
>+                IResultTree subtree = new ObjectListResult.Outbound(node.getValue().getSnapshot(), outbounds);
>+                return GraftedResultTree.graft(subtree, node.getValue(), GRAFTED_COLUMN_MAPPING);
>+            } else {
>+                return super.getChildren(row);
>+            }
>+        } catch (SnapshotException e) {
>+            JavaEEPlugin.error(e);
>+            return null;
>+        }
>+    }
>+
>+    @Override
>+    protected IContextObject getContext(Object row) {
>+        if (row instanceof SessionAttributeData) {
>+            final SessionAttributeData node = (SessionAttributeData) row;
>+            return new IContextObject() {
>+                public int getObjectId() {
>+                    return node.getValue().getObjectId();
>+                }
>+            };
>+        } else {
>+            return super.getContext(row);
>+        }
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/ServletQuery.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/ServletQuery.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/ServletQuery.java	(working copy)
>@@ -0,0 +1,105 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.query;
>+
>+import java.util.ArrayList;
>+import java.util.List;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.IOverviewNode;
>+import org.eclipse.mat.javaee.SimpleObjectQuery;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.query.Column;
>+import org.eclipse.mat.query.annotations.Category;
>+import org.eclipse.mat.query.annotations.CommandName;
>+import org.eclipse.mat.query.annotations.Help;
>+import org.eclipse.mat.query.annotations.Name;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.model.IObject;
>+
>+@Category("Enterprise Java/Web")
>+@Name("Servlets")
>+@CommandName("javaee-servlets")
>+@Help("Shows servlets")
>+public class ServletQuery extends SimpleObjectQuery<ServletQuery.ServletOverviewNode> {
>+    private static final Column[] COLUMNS = {
>+        new Column("Name", String.class),
>+        new Column("Class", String.class),
>+        new Column("Size", Long.class),
>+    };
>+
>+
>+    final static class ServletOverviewNode implements IOverviewNode {
>+        private final IObject object;
>+
>+        public ServletOverviewNode(IObject object) {
>+            this.object = object;
>+        }
>+
>+        public int getId() {
>+            return object.getObjectId();
>+        }
>+
>+        public long getRetainedHeap() {
>+            return object.getRetainedHeapSize();
>+        }
>+
>+        public String getName() {
>+            return ServletExtractors.getServletExtractor(object).getName(object);
>+        }
>+
>+        public String getServletClass() {
>+            return ServletExtractors.getServletExtractor(object).getServletClass(object);
>+        }
>+    }
>+
>+
>+
>+    public ServletQuery() {
>+        super(ServletOverviewNode.class);
>+    }
>+
>+    protected List<Integer> findObjects(ISnapshot snapshot) throws SnapshotException {
>+        return ServletExtractors.findServlets(snapshot);
>+    }
>+
>+    protected ServletOverviewNode createOverviewNode(IObject obj) {
>+        return new ServletOverviewNode(obj);
>+    }
>+
>+    protected boolean overviewHasChildren(ServletOverviewNode row) {
>+        return true;
>+    }
>+
>+    protected Column[] getColumns() {
>+        return COLUMNS;
>+    }
>+
>+    @Override
>+    protected Object getOverviewColumnValue(ServletOverviewNode row, int columnIndex) {
>+        switch (columnIndex) {
>+        case 0:
>+            return row.getName();
>+        case 1:
>+            return row.getServletClass();
>+        case 2:
>+            return row.getRetainedHeap();
>+        default:
>+            return super.getOverviewColumnValue(row, columnIndex);
>+        }
>+    }
>+
>+    @Override
>+    protected List<?> getOverviewChildren(ServletOverviewNode row) {
>+        //return ((ServletOverviewNode)parent).getAttributes();
>+        return new ArrayList<Object>();
>+    }
>+}
>Index: plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/ServletServletRequestResolver.java
>===================================================================
>--- plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/ServletServletRequestResolver.java	(revision 0)
>+++ plugins/org.eclipse.mat.javaee/src/org/eclipse/mat/javaee/servlet/query/ServletServletRequestResolver.java	(working copy)
>@@ -0,0 +1,50 @@
>+/*******************************************************************************
>+ * Copyright (c) 2014 Red Hat Inc
>+ * All rights reserved. This program and the accompanying materials
>+ * are made available under the terms of the Eclipse Public License v1.0
>+ * which accompanies this distribution, and is available at
>+ * http://www.eclipse.org/legal/epl-v10.html
>+ *
>+ * Contributors:
>+ *    Red Hat Inc - initial API and implementation
>+ *******************************************************************************/
>+package org.eclipse.mat.javaee.servlet.query;
>+
>+import org.eclipse.mat.SnapshotException;
>+import org.eclipse.mat.javaee.impl.ServletExtractors;
>+import org.eclipse.mat.javaee.servlet.api.RequestExtractor;
>+import org.eclipse.mat.query.results.CompositeResult;
>+import org.eclipse.mat.query.results.TextResult;
>+import org.eclipse.mat.report.QuerySpec;
>+import org.eclipse.mat.snapshot.ISnapshot;
>+import org.eclipse.mat.snapshot.extension.IRequestDetailsResolver;
>+import org.eclipse.mat.snapshot.extension.IThreadInfo;
>+import org.eclipse.mat.snapshot.extension.Subjects;
>+import org.eclipse.mat.snapshot.model.IObject;
>+import org.eclipse.mat.util.IProgressListener;
>+
>+
>+@Subjects(value = {
>+    "org.apache.catalina.connector.RequestFacade",
>+    "org.apache.catalina.connector.Request",
>+    "io.undertow.servlet.spec.HttpServletRequestImpl",
>+})
>+public class ServletServletRequestResolver implements IRequestDetailsResolver {
>+    public void complement(ISnapshot snapshot, IThreadInfo thread,
>+            int[] javaLocals, int thisJavaLocal, IProgressListener listener)
>+            throws SnapshotException {
>+        IObject request = snapshot.getObject(thisJavaLocal);
>+        RequestExtractor extractor = ServletExtractors.getRequestExtractor(request);
>+        if (extractor == null) {
>+            System.out.println("WARN unhandled request type" + request.getClazz().getName());
>+            return;
>+        }
>+
>+        CompositeResult answer = new CompositeResult();
>+
>+        QuerySpec spec = new QuerySpec("URI", new TextResult(extractor.getRequestUri(request)));
>+        answer.addResult(spec);
>+
>+        thread.addRequest("Enterprise Java web worker thread", answer);
>+    }
>+}

Actions: View | Diff

Attachments on bug 442217: 246295 | 246585