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/*******************************************************************************
* Copyright (c) 2011, 2012 SAP AG
* 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:
* Lazar Kirchev, SAP AG - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.console.ssh;
import org.apache.felix.service.command.CommandProcessor;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
public class Activator implements BundleActivator {
private static BundleContext context;
private static SshCommand sshConnection = null;
private static boolean isFirstProcessor = true;
private ServiceTracker<CommandProcessor, SshCommand> commandProcessorTracker;
public static class ProcessorCustomizer implements ServiceTrackerCustomizer<CommandProcessor, SshCommand> {
private final BundleContext context;
public ProcessorCustomizer(BundleContext context) {
this.context = context;
}
public SshCommand addingService(ServiceReference<CommandProcessor> reference) {
CommandProcessor processor = context.getService(reference);
if (processor == null)
return null;
if (isFirstProcessor) {
isFirstProcessor = false;
sshConnection = new SshCommand(processor, context);
sshConnection.startService();
} else {
sshConnection.addCommandProcessor(processor);
}
return sshConnection;
}
public void modifiedService(
ServiceReference<CommandProcessor> reference,
SshCommand service) {
// nothing
}
public void removedService(ServiceReference<CommandProcessor> reference, SshCommand service) {
CommandProcessor processor = context.getService(reference);
service.removeCommandProcessor(processor);
}
}
static BundleContext getContext() {
return context;
}
/*
* (non-Javadoc)
* @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
*/
public void start(BundleContext bundleContext) throws Exception {
context = bundleContext;
commandProcessorTracker = new ServiceTracker<CommandProcessor, SshCommand>(context, CommandProcessor.class, new ProcessorCustomizer(context));
commandProcessorTracker.open();
}
/*
* (non-Javadoc)
* @see org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext bundleContext) throws Exception {
Activator.context = null;
commandProcessorTracker.close();
try {
sshConnection.ssh(new String[]{"stop"});
} catch (Exception e) {
// expected if the ssh server is not started
}
}
}
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