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/******************************************************************************* |
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* Copyright (c) 2009 Tasktop Technologies and others. |
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* All rights reserved. This program and the accompanying materials |
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* are made available under the terms of the Eclipse Public License v1.0 |
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* which accompanies this distribution, and is available at |
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* http://www.eclipse.org/legal/epl-v10.html |
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* |
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* Contributors: |
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* Tasktop Technologies - initial API and implementation |
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*******************************************************************************/ |
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package org.eclipse.mylyn.internal.tasks.ui; |
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import java.io.File; |
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import java.io.FileOutputStream; |
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import java.io.IOException; |
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import java.io.OutputStream; |
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import java.util.concurrent.atomic.AtomicReference; |
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import org.eclipse.core.runtime.CoreException; |
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import org.eclipse.core.runtime.IProgressMonitor; |
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import org.eclipse.core.runtime.IStatus; |
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import org.eclipse.core.runtime.Status; |
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import org.eclipse.core.runtime.jobs.Job; |
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import org.eclipse.mylyn.internal.tasks.ui.util.AttachmentUtil; |
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import org.eclipse.mylyn.tasks.core.ITaskAttachment; |
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import org.eclipse.swt.widgets.Display; |
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import org.eclipse.ui.IWorkbenchPage; |
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import org.eclipse.ui.PartInitException; |
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class DownloadAndOpenTaskAttachmentJob extends Job { |
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private final ITaskAttachment attachment; |
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private final IWorkbenchPage page; |
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private final String editorID; |
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DownloadAndOpenTaskAttachmentJob(String jobName, ITaskAttachment attachment, IWorkbenchPage page, String editorID) { |
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super(jobName); |
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this.attachment = attachment; |
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this.page = page; |
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this.editorID = editorID; |
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} |
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@Override |
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protected IStatus run(IProgressMonitor monitor) { |
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final String attachmentFilename = AttachmentUtil.getAttachmentFilename(attachment); |
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File file = null; |
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try { |
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file = File.createTempFile("attach-", "-" + attachmentFilename); |
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} catch (IOException e) { |
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return new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Failed to download attachment", e); |
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} |
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file.deleteOnExit(); |
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FileOutputStream fos = null; |
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try { |
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fos = new FileOutputStream(file); |
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AttachmentUtil.downloadAttachment(attachment, fos, monitor); |
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fos.close(); |
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fos = null; |
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} catch (IOException e) { |
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closeAndDelete(fos, file); |
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fos = null; |
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return new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Failed to download attachment", e); |
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} catch (CoreException e) { |
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closeAndDelete(fos, file); |
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fos = null; |
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return new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Failed to download attachment", e); |
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} finally { |
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if (fos != null) { |
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try { |
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fos.close(); |
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} catch (IOException e) { |
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// ignore ... something bad is happening here |
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} |
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} |
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} |
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Display disp = page.getWorkbenchWindow().getWorkbench().getDisplay(); |
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if (disp.isDisposed()) { |
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return new Status(IStatus.WARNING, TasksUiPlugin.ID_PLUGIN, "Display is disposed"); |
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} |
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if (disp.getThread() == Thread.currentThread()) { |
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try { |
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page.openEditor(new FileEditorInput(file, attachmentFilename, attachment.getUrl()), editorID); |
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} catch (PartInitException e) { |
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return new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Cannot open editor", e); |
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} |
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return new Status(IStatus.OK, TasksUiPlugin.ID_PLUGIN, "OK"); |
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} else { |
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final AtomicReference<IStatus> status = new AtomicReference<IStatus>(); |
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final File tmpFile = file; |
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disp.syncExec(new Runnable() { |
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public void run() { |
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try { |
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page.openEditor(new FileEditorInput(tmpFile, attachmentFilename, attachment.getUrl()), editorID); |
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status.set(new Status(IStatus.OK, TasksUiPlugin.ID_PLUGIN, "OK")); |
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} catch (PartInitException e) { |
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status.set(new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Cannot open editor", e)); |
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} |
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}; |
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}); |
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if (status.get() == null) { |
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return new Status(IStatus.ERROR, TasksUiPlugin.ID_PLUGIN, "Cannot open editor"); |
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} |
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return status.get(); |
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} |
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} |
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void closeAndDelete(OutputStream os, File file) { |
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if (os != null) { |
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try { |
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os.close(); |
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} catch (IOException ex) { |
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// ignore ... we are going to delete the file anyway |
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} |
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} |
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if (file == null) { |
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return; |
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} |
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file.delete(); |
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} |
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} |
