/*******************************************************************************
* Copyright (c) 2011, 2014 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.tcf.locator.activator;
import org.eclipse.core.runtime.Plugin;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.te.runtime.preferences.ScopedEclipsePreferences;
import org.eclipse.tcf.te.runtime.tracing.TraceHandler;
import org.eclipse.tcf.te.tcf.locator.interfaces.nodes.IPeerModel;
import org.eclipse.tcf.te.tcf.locator.model.ModelManager;
import org.osgi.framework.BundleContext;
/**
* The activator class controls the plug-in life cycle
*/
public class CoreBundleActivator extends Plugin {
// The shared instance
private static CoreBundleActivator plugin;
// The scoped preferences instance
private static volatile ScopedEclipsePreferences scopedPreferences;
// The trace handler instance
private static volatile TraceHandler traceHandler;
/**
* Returns the shared instance
*
* @return the shared instance
*/
public static CoreBundleActivator getDefault() {
return plugin;
}
/**
* Convenience method which returns the unique identifier of this plugin.
*/
public static String getUniqueIdentifier() {
if (getDefault() != null && getDefault().getBundle() != null) {
return getDefault().getBundle().getSymbolicName();
}
return "org.eclipse.tcf.te.tcf.locator"; //$NON-NLS-1$
}
/**
* Return the scoped preferences for this plugin.
*/
public static ScopedEclipsePreferences getScopedPreferences() {
if (scopedPreferences == null) {
scopedPreferences = new ScopedEclipsePreferences(getUniqueIdentifier());
}
return scopedPreferences;
}
/**
* Returns the bundles trace handler.
*
* @return The bundles trace handler.
*/
public static TraceHandler getTraceHandler() {
if (traceHandler == null) {
traceHandler = new TraceHandler(getUniqueIdentifier());
}
return traceHandler;
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.Plugin#start(org.osgi.framework.BundleContext)
*/
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
scopedPreferences = null;
plugin = this;
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
*/
@Override
public void stop(BundleContext context) throws Exception {
plugin = null;
// Dispose the locator model
final IPeerModel model = ModelManager.getPeerModel(true);
if (model != null) {
Runnable runnable = new Runnable() {
@Override
public void run() {
model.dispose();
}
};
try {
if (Protocol.isDispatchThread()) runnable.run();
else Protocol.invokeAndWait(runnable);
} catch (IllegalStateException e) { /* ignored on purpose */ }
}
super.stop(context);
}
}