/****************************************************************************
* Copyright (c) 2004, 2009 Composent, 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:
* Composent, Inc. - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.internal.remoteservice;
import org.eclipse.ecf.remoteservice.RemoteServiceNamespace;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;
import java.util.Dictionary;
import java.util.Hashtable;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.ecf.core.identity.IDFactory;
import org.eclipse.ecf.core.util.LogHelper;
import org.eclipse.ecf.core.util.SystemLogService;
import org.eclipse.ecf.remoteservice.IRemoteServiceProxyCreator;
import org.osgi.framework.*;
import org.osgi.service.log.LogService;
import org.osgi.util.tracker.ServiceTracker;
/**
* The activator class controls the plug-in life cycle
*/
public class Activator implements BundleActivator {
// The plug-in ID
public static final String PLUGIN_ID = "org.eclipse.ecf.remoteservice"; //$NON-NLS-1$
// The shared instance
private static Activator plugin;
private BundleContext context;
private ServiceTracker logServiceTracker = null;
private LogService logService = null;
private ServiceRegistration remoteServiceProxyCreator;
private RemoteServiceNamespace remoteServiceNamespace;
/**
* The constructor
*/
public Activator() {
plugin = this;
}
public BundleContext getContext() {
return context;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.core.runtime.Plugins#start(org.osgi.framework.BundleContext)
*/
public void start(BundleContext c) throws Exception {
// nothing to do
this.context = c;
// Register default IRemoteServiceProxyCreator
Dictionary props = new Hashtable();
props.put(Constants.SERVICE_RANKING, Integer.MIN_VALUE);
this.remoteServiceProxyCreator = this.context.registerService(new String[] {IRemoteServiceProxyCreator.class.getName()}, new IRemoteServiceProxyCreator() {
public Object createProxy(ClassLoader classloader, Class[] interfaces, InvocationHandler handler) {
return Proxy.newProxyInstance(classloader, interfaces, handler);
}
}, props);
// Setup namespace
this.remoteServiceNamespace = new RemoteServiceNamespace(RemoteServiceNamespace.NAME, "remote service namespace"); //$NON-NLS-1$
IDFactory.getDefault().addNamespace(remoteServiceNamespace);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.core.runtime.Plugin#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext c) throws Exception {
if (this.remoteServiceProxyCreator != null) {
this.remoteServiceProxyCreator.unregister();
this.remoteServiceProxyCreator = null;
}
if (logServiceTracker != null) {
logServiceTracker.close();
logServiceTracker = null;
logService = null;
}
// Remote namespace
if (remoteServiceNamespace != null) {
IDFactory.getDefault().removeNamespace(remoteServiceNamespace);
remoteServiceNamespace = null;
}
this.context = null;
plugin = null;
}
/**
* Returns the shared instance
*
* @return the shared instance
*/
public synchronized static Activator getDefault() {
if (plugin == null) {
plugin = new Activator();
}
return plugin;
}
protected LogService getLogService() {
if (logServiceTracker == null) {
logServiceTracker = new ServiceTracker(this.context, LogService.class.getName(), null);
logServiceTracker.open();
}
logService = (LogService) logServiceTracker.getService();
if (logService == null)
logService = new SystemLogService(PLUGIN_ID);
return logService;
}
public void log(IStatus status) {
if (logService == null)
logService = getLogService();
if (logService != null)
logService.log(LogHelper.getLogCode(status), LogHelper.getLogMessage(status), status.getException());
}
}