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[corona-dev] loading ProjectContainer from an XML file

This is a summary of mail thread between me and Glenn on loading project container from an xml file:

 

So far for loading project container from xml I used sdo/emf api but not the one generated from our model (from model only factoryImpl, packageImpl were used).

To load project container I’ve done the following:

 

ResourceSet resourceSet = SDOUtil.createResourceSet();

 

// ProjectPackageImpl and ProjectFactoryImpl is from our generated model

ProjectPackageImpl.eINSTANCE.getName();

resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap().put("xml", new ProjectFactoryImpl());

ExtendedMetaData metadata = new BasicExtendedMetaData(resourceSet.getPackageRegistry());

 

Map loadOptions = new HashMap();

loadOptions.put(XMLResource.OPTION_EXTENDED_META_DATA, metaData);

 

FileInputStream inputStream = new FileInputStream("D:/EclipseStuff/SDO/sampleEclipseProjectSdoModel.xml");

// loading data graph with our serialized project container

DataGraph dataGraph = SDOUtil.loadDataGraph(inputStream, loadOptions);

inputStream.close();

 

// retrieving our project container from data graph

ProjectContextContainer root = (ProjectContextContainer)dataGraph.getRootObject();

String containerName = root.getName();

String containerUri = root.getContainerUri ();

 

System.out.println (“project container name: ” + containerName);

System.out.println (“project container uri: ” + containerUri);

 

 

Above api was used also inside some emf/sdo performance tests.

 

Regarding manually creating a project container:

I haven’t used editor but only model.

After model code generation I run the project as eclipse application and inside new eclipse workbench I create new project and add to it data graph model with chosen:

model uri as http://www.eclipse.org/corona/server/container/project, model object as ProjectContextContainer. Than I can define a project container with the use of eclipse.

 

After opening defined project container data graph model within text editor – it looks like:

 

<?xml version="1.0" encoding="UTF-8"?>

<sdo:datagraph xmlns:project="http://www.eclipse.org/corona/server/container/project"

    xmlns:sdo="commonj.sdo">

  <changeSummary xmlns=""/>

  <project:project-context-container name="SampleEclipseProject">

    <container-uri>http://www.eclipse.org/corona/server/container/sampleEclipseProject</container-uri>

    <container-path>

      <container-path-element>http://www.eclipse.org/corona/server/container/sampleEclipseProject</container-path-element>

    </container-path>

    <container-type>http://www.eclipse.org/corona/server/containerTypes/eclipseProject</container-type>

    <container-description>Sample eclipse project</container-description>

    <repositories>

      <repository name="TeamMemberRepository" type="http://www.eclipse.org/corona/repositoryTypes/xmlRepository"

          uri="http://www.eclipse.org/corona/repository/TeamMemberRepository">

        <description>Team member repository definition</description>

        <repository-configurations default-configuration-name="members_1">

          <repository-configuration name="members_1">

            <repository-connection-parameters>

              <repository-connection-parameter name="fileURI" value="file:///model/data/teamMembers.xml"/>

            </repository-connection-parameters>

            <resource-subset selection-criteria="//team/members" type="http://www.eclipse.org/corona/server/resourceSubsetTypes/XPathResultSet"/>

          </repository-configuration>

        </repository-configurations>

      </repository>

    </repositories>

  </project:project-context-container>

</sdo:datagraph>

 

And such xml is used as an input for loadDataGraph method.

 

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

 

Regarding usage of generated model code for project container loading:

 

There is a class called ProjectXMLProcessor extending org.eclipse.emf.ecore.xmi.util.XMLProcessor.

It looks like the only thing needed to load serialized model is to call this:

 

FileInputStream inputStream = new FileInputStream("D:/EclipseStuff/SDO/sampleEclipseProjectSdoModel.xml");

ProjectXMLProcessor xmlProcessor = new ProjectXMLProcessor();

Resource resource = xmlProcessor.load(inputStream, null);

 

However, junit test fails with such trace:

org.eclipse.emf.ecore.resource.Resource$IOWrappedException: Package with uri 'commonj.sdo' not found. (file:///D:/CORONA/ProjectContainer_20_06/sdoWorkspace1/pc8.tests/xml, 3, 29)

            at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.handleErrors(XMLLoadImpl.java:80)

            at org.eclipse.emf.ecore.xmi.impl.XMLLoadImpl.load(XMLLoadImpl.java:189)

            at org.eclipse.emf.ecore.xmi.impl.XMLResourceImpl.doLoad(XMLResourceImpl.java:179)

            at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1089)

            at org.eclipse.emf.ecore.xmi.util.XMLProcessor.load(XMLProcessor.java:232)

            at org.eclipse.corona.server.container.project.tests.ProjectContextContainerTest.load(ProjectContextContainerTest.java:96)

            at org.eclipse.corona.server.container.project.tests.ProjectContextContainerTest.testDeserializeProjectContextContainerWithGeneratedApi(ProjectContextContainerTest.java:115)

            at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

            at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

            at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

            at java.lang.reflect.Method.invoke(Unknown Source)

            at junit.framework.TestCase.runTest(TestCase.java:154)

            at junit.framework.TestCase.runBare(TestCase.java:127)

            at junit.framework.TestResult$1.protect(TestResult.java:106)

            at junit.framework.TestResult.runProtected(TestResult.java:124)

            at junit.framework.TestResult.run(TestResult.java:109)

            at junit.framework.TestCase.run(TestCase.java:118)

            at junit.framework.TestSuite.runTest(TestSuite.java:208)

            at junit.framework.TestSuite.run(TestSuite.java:203)

            at junit.framework.TestSuite.runTest(TestSuite.java:208)

            at junit.framework.TestSuite.run(TestSuite.java:203)

            at junit.framework.TestSuite.runTest(TestSuite.java:208)

            at junit.framework.TestSuite.run(TestSuite.java:203)

            at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128)

            at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)

            at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)

            at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)

            at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)

            at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

 

 

org.eclipse.emf.commonj.sdo is included in plugin dependencies.

 

Also adding such initialization before calling load on project xml processor instance did not help:

ResourceSet resourceSet = SDOUtil.createResourceSet();

resourceSet.getResourceFactoryRegistry().getExtensionToFactoryMap().put("xml", new ProjectFactoryImpl());

ExtendedMetaData metadata = new BasicExtendedMetaData(resourceSet.getPackageRegistry());

 

Map loadOptions = new HashMap();

loadOptions.put(XMLResource.OPTION_EXTENDED_META_DATA, metaData);

 

FileInputStream inputStream = new FileInputStream("D:/EclipseStuff/SDO/sampleEclipseProjectSdoModel.xml");

ProjectXMLProcessor xmlProcessor = new ProjectXMLProcessor();

Resource resource = xmlProcessor.load(inputStream, loadOptions);

 

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