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/*******************************************************************************
* Copyright (c) 2007, 2013 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;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.IExtension;
import org.eclipse.core.runtime.IExtensionPoint;
import org.eclipse.core.runtime.IExtensionRegistry;
import org.eclipse.core.runtime.ILog;
import org.eclipse.core.runtime.IProgressMonitor;
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.eclipse.core.runtime.jobs.Job;
import org.eclipse.osgi.util.NLS;
import org.eclipse.tcf.core.ChannelTCP;
import org.eclipse.tcf.internal.nls.TcfPluginMessages;
import org.eclipse.tcf.protocol.ILogger;
import org.eclipse.tcf.protocol.IServiceProvider;
import org.eclipse.tcf.protocol.Protocol;
import org.eclipse.tcf.ssl.TCFSecurityManager;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.osgi.framework.BundleEvent;
import org.osgi.framework.BundleListener;
/**
* The activator class controls the plug-in life cycle
*/
public class Activator extends Plugin {
public static final String PLUGIN_ID = "org.eclipse.tcf"; //$NON-NLS-1$
private static Activator plugin;
private static boolean debug;
private static final EventQueue queue = new EventQueue();
private static final BundleListener bundle_listener = new BundleListener() {
private boolean started = false;
public void bundleChanged(BundleEvent event) {
if (plugin != null && !started &&
event.getBundle() == plugin.getBundle() &&
plugin.getBundle().getState() == Bundle.ACTIVE) {
queue.start();
started = true;
}
}
};
/** Eclipse tracing option, plug-in wide */
private static boolean TRACE;
/**
* Constructor.
*/
public Activator() {
plugin = this;
}
/**
* Returns the shared instance
*
* @return the shared instance
*/
public static Activator getDefault() {
return plugin;
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.Plugin#start(org.osgi.framework.BundleContext)
*/
@Override
public void start(BundleContext context) throws Exception {
super.start(context);
debug = Platform.inDebugMode();
TRACE = "true".equals(Platform.getDebugOption("org.eclipse.tcf/debug")); //$NON-NLS-1$
if (TRACE && "true".equals(Platform.getDebugOption("org.eclipse.tcf/debug/discovery"))) {
System.setProperty("org.eclipse.tcf.core.tracing.discovery", "true");
}
if (TRACE && "true".equals(Platform.getDebugOption("org.eclipse.tcf/debug/channel"))) {
System.setProperty("org.eclipse.tcf.core.tracing.channel", "true");
}
ChannelTCP.setSSLContext(TCFSecurityManager.createSSLContext());
Protocol.setLogger(new ILogger() {
public void log(final String msg, final Throwable x) {
// Normally, we hook the TCF logging service (ILogger) to the
// Plug-in logger. Trace hooks in the code use the TCF logger.
// The Plug-in logger isn't really designed for large amounts of
// trace data, though, so redirect to stdout when tracing is
// enabled.
if (TRACE) {
System.out.println(msg);
if (x != null) x.printStackTrace();
}
else {
if (debug) {
System.err.println(msg);
if (x != null) x.printStackTrace();
}
if (plugin != null) {
final ILog logger = getLog();
if (logger != null) {
// Do not call logger on TCF thread - it can cause deadlock,
// because Eclipse log listeners (e.g. IDEWorkbenchErrorHandler)
// can call Display.syncExec(), which is not allowed
// on the TCF dispatch thread.
Job job = new Job("TCF Log") {
@Override
protected IStatus run(IProgressMonitor monitor) {
logger.log(new Status(IStatus.ERROR,
getBundle().getSymbolicName(), IStatus.OK, msg, x));
return Status.OK_STATUS;
}
};
job.setPriority(Job.SHORT);
job.setSystem(true);
job.schedule();
}
}
}
}
});
/*
* Starts the timer_queue and sets the event_queue
*/
Protocol.setEventQueue(queue);
Protocol.invokeLater(new Runnable() {
public void run() {
runTCFStartup();
}
});
context.addBundleListener(bundle_listener);
}
/* (non-Javadoc)
* @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
*/
@Override
public void stop(BundleContext context) throws Exception {
context.removeBundleListener(bundle_listener);
queue.shutdown();
plugin = null;
super.stop(context);
}
private void runTCFStartup() {
try {
IExtensionPoint point = Platform.getExtensionRegistry().getExtensionPoint(PLUGIN_ID, "startup"); //$NON-NLS-1$
IExtension[] extensions = point.getExtensions();
for (int i = 0; i < extensions.length; i++) {
try {
Bundle bundle = Platform.getBundle(extensions[i].getNamespaceIdentifier());
bundle.start(Bundle.START_TRANSIENT);
IConfigurationElement[] e = extensions[i].getConfigurationElements();
for (int j = 0; j < e.length; j++) {
String nm = e[j].getName();
if (nm.equals("class")) { //$NON-NLS-1$
Class<?> c = bundle.loadClass(e[j].getAttribute("name")); //$NON-NLS-1$
Class.forName(c.getName(), true, c.getClassLoader());
}
}
}
catch (Throwable x) {
Protocol.log("TCF startup error", x); //$NON-NLS-1$
}
}
}
catch (Exception x) {
Protocol.log("TCF startup error", x); //$NON-NLS-1$
}
// Register service providers contributed via Eclipse extension point
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint point = registry.getExtensionPoint("org.eclipse.tcf.serviceProviders"); //$NON-NLS-1$
if (point != null) {
IExtension[] extensions = point.getExtensions();
for (IExtension extension : extensions) {
IConfigurationElement[] elements = extension.getConfigurationElements();
for (IConfigurationElement element : elements) {
if ("serviceProvider".equals(element.getName())) { //$NON-NLS-1$
try {
// Create the service provider instance
IServiceProvider provider = (IServiceProvider)element.createExecutableExtension("class"); //$NON-NLS-1$
if (provider != null) Protocol.addServiceProvider(provider);
} catch (CoreException e) {
IStatus status = new Status(IStatus.ERROR, Activator.PLUGIN_ID,
NLS.bind(TcfPluginMessages.Extension_error_invalidExtensionPoint, element.getDeclaringExtension().getUniqueIdentifier()),
e);
Activator.getDefault().getLog().log(status);
}
}
}
}
}
}
}
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