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/**
* Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
* 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:
* Eike Stepper - initial API and implementation
*/
package org.eclipse.emf.cdo.releng.version;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IWorkspaceRoot;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Plugin;
import org.eclipse.core.runtime.Status;
import org.osgi.framework.BundleContext;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Map.Entry;
/**
* @author Eike Stepper
*/
public class Activator extends Plugin
{
public static final String PLUGIN_ID = "org.eclipse.emf.cdo.releng.version";
private static Activator plugin;
private Map<String, BuildState> buildStates;
private File stateFile;
public Activator()
{
}
@Override
public void start(BundleContext context) throws Exception
{
super.start(context);
plugin = this;
try
{
File stateFolder = Platform.getStateLocation(getBundle()).toFile();
stateFile = new File(stateFolder, "buildStates.bin");
if (stateFile.exists())
{
loadBuildStates();
stateFile.delete(); // Future indication for possible workspace crash
}
}
finally
{
if (buildStates == null)
{
buildStates = new HashMap<String, BuildState>();
}
}
}
@Override
public void stop(BundleContext context) throws Exception
{
if (!buildStates.isEmpty())
{
saveBuildStates();
}
stateFile = null;
plugin = null;
super.stop(context);
}
private void loadBuildStates()
{
ObjectInputStream stream = null;
try
{
stream = new ObjectInputStream(new FileInputStream(stateFile));
@SuppressWarnings("unchecked")
Map<String, BuildState> object = (Map<String, BuildState>)stream.readObject();
buildStates = object;
}
catch (Exception ex)
{
log(ex);
}
finally
{
if (stream != null)
{
try
{
stream.close();
}
catch (Exception ex)
{
log(ex);
}
}
}
}
private void saveBuildStates()
{
IWorkspaceRoot root = ResourcesPlugin.getWorkspace().getRoot();
for (Iterator<Entry<String, BuildState>> it = buildStates.entrySet().iterator(); it.hasNext();)
{
Entry<String, BuildState> entry = it.next();
IProject project = root.getProject(entry.getKey());
if (!project.exists())
{
it.remove();
}
}
ObjectOutputStream stream = null;
try
{
stream = new ObjectOutputStream(new FileOutputStream(stateFile));
stream.writeObject(buildStates);
}
catch (Exception ex)
{
log(ex);
}
finally
{
if (stream != null)
{
try
{
stream.close();
}
catch (Exception ex)
{
log(ex);
}
}
}
}
public static BuildState getBuildState(IProject project)
{
String name = project.getName();
BuildState buildState = plugin.buildStates.get(name);
if (buildState == null)
{
buildState = new BuildState();
plugin.buildStates.put(name, buildState);
}
return buildState;
}
public static void log(String message)
{
plugin.getLog().log(new Status(IStatus.INFO, PLUGIN_ID, message));
}
public static void log(IStatus status)
{
plugin.getLog().log(status);
}
public static String log(Throwable t)
{
IStatus status = getStatus(t);
log(status);
return status.getMessage();
}
public static IStatus getStatus(Throwable t)
{
if (t instanceof CoreException)
{
CoreException coreException = (CoreException)t;
return coreException.getStatus();
}
String msg = t.getLocalizedMessage();
if (msg == null || msg.length() == 0)
{
msg = t.getClass().getName();
}
return new Status(IStatus.ERROR, PLUGIN_ID, msg, t);
}
}
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