/* ********************************************************************** **
** Copyright notice **
** **
** (c) 2005-2009 RSSOwl Development Team **
** http://www.rssowl.org/ **
** **
** 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.rssowl.org/legal/epl-v10.html **
** **
** A copy is found in the file epl-v10.html and important notices to the **
** license from the team is found in the textfile LICENSE.txt distributed **
** in this package. **
** **
** This copyright notice MUST APPEAR in all copies of the file! **
** **
** Contributors: **
** RSSOwl Development Team - initial API and implementation **
** **
** ********************************************************************** */
package org.rssowl.contrib.tools.internal;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.swt.program.Program;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkbenchWindowActionDelegate;
import org.rssowl.core.Owl;
import org.rssowl.core.connection.ConnectionException;
import org.rssowl.core.connection.IAbortable;
import org.rssowl.core.connection.IProtocolHandler;
import org.rssowl.core.persist.IBookMark;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.URI;
/**
* Displays the source of a feed in the default editor after downloading.
*
* @author bpasero
*/
public class ViewFeedSourceAction implements IWorkbenchWindowActionDelegate {
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#init(org.eclipse.ui.IWorkbenchWindow)
*/
public void init(IWorkbenchWindow window) {}
/*
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
@SuppressWarnings("restriction")
public void run(IAction action) {
org.rssowl.ui.internal.editors.feed.FeedView activeFeedView = org.rssowl.ui.internal.OwlUI.getActiveFeedView();
if (activeFeedView != null) {
IEditorInput input = activeFeedView.getEditorInput();
if (input instanceof org.rssowl.ui.internal.editors.feed.FeedViewInput) {
org.rssowl.ui.internal.editors.feed.FeedViewInput feedInput = (org.rssowl.ui.internal.editors.feed.FeedViewInput) input;
if (feedInput.getMark() instanceof IBookMark) {
final IBookMark bm = (IBookMark) feedInput.getMark();
final URI feedLink = bm.getFeedLinkReference().getLink();
try {
final IProtocolHandler handler = Owl.getConnectionService().getHandler(feedLink);
if (handler instanceof org.rssowl.core.internal.connection.DefaultProtocolHandler) {
Job downloadJob = new Job(Messages.ViewFeedSourceAction_DOWNLOAD_FEED_SOURCE) {
@Override
protected IStatus run(IProgressMonitor monitor) {
monitor.beginTask(bm.getName(), IProgressMonitor.UNKNOWN);
File tmpFile = null;
InputStream in = null;
FileOutputStream out = null;
boolean canceled = false;
Exception error = null;
try {
tmpFile = File.createTempFile("feed", ".txt"); //$NON-NLS-1$ //$NON-NLS-2$
tmpFile.deleteOnExit();
byte[] buffer = new byte[8192];
in = handler.openStream(feedLink, monitor, null);
out = new FileOutputStream(tmpFile);
while (true) {
/* Check for Cancellation and Shutdown */
if (monitor.isCanceled() || org.rssowl.ui.internal.Controller.getDefault().isShuttingDown()) {
canceled = true;
return Status.CANCEL_STATUS;
}
/* Read from Stream */
int read = in.read(buffer);
if (read == -1)
break;
out.write(buffer, 0, read);
}
} catch (FileNotFoundException e) {
error = e;
Activator.log(e);
} catch (IOException e) {
error = e;
Activator.log(e);
} catch (ConnectionException e) {
error = e;
Activator.log(e);
} finally {
monitor.done();
if (out != null) {
try {
out.close();
} catch (IOException e) {
Activator.log(e);
}
}
if (in != null) {
try {
if ((canceled || error != null) && in instanceof IAbortable)
((IAbortable) in).abort();
else
in.close();
} catch (IOException e) {
Activator.log(e);
}
}
}
/* Open in Default Program */
if (tmpFile != null)
Program.launch(tmpFile.toString());
return Status.OK_STATUS;
}
};
downloadJob.schedule();
}
} catch (ConnectionException e) {
Activator.log(e);
}
}
}
}
}
/*
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {}
/*
* @see org.eclipse.ui.IWorkbenchWindowActionDelegate#dispose()
*/
public void dispose() {}
}