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/*******************************************************************************
* Copyright (c) 2007, 2017 IBM Corporation and others.
* All rights reserved. This
* 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:
* IBM Corporation - initial API and implementation
* Composent, Inc. - additions
* SAP AG - additions
*******************************************************************************/
package org.eclipse.equinox.internal.p2.console;
import org.eclipse.equinox.p2.core.IProvisioningAgent;
import org.osgi.framework.*;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
public class Activator implements BundleActivator, ServiceTrackerCustomizer<IProvisioningAgent, IProvisioningAgent> {
// The plug-in ID
public static final String PLUGIN_ID = "org.eclipse.equinox.p2.console"; //$NON-NLS-1$
private static final String PROVIDER_NAME = "org.eclipse.osgi.framework.console.CommandProvider"; //$NON-NLS-1$
private static BundleContext context;
private ServiceTracker<IProvisioningAgent, IProvisioningAgent> agentTracker;
private IProvisioningAgent provAgent;
private ProvCommandProvider provider;
private ServiceRegistration<?> providerRegistration = null;
public static BundleContext getContext() {
return context;
}
public Activator() {
super();
}
@Override
public void start(BundleContext ctxt) throws Exception {
Activator.context = ctxt;
boolean registerCommands = true;
try {
Class.forName(PROVIDER_NAME);
} catch (ClassNotFoundException e) {
registerCommands = false;
}
if (registerCommands) {
agentTracker = new ServiceTracker<>(context, IProvisioningAgent.class, this);
agentTracker.open();
}
}
@Override
public void stop(BundleContext ctxt) throws Exception {
agentTracker.close();
if (providerRegistration != null)
providerRegistration.unregister();
providerRegistration = null;
provAgent = null;
Activator.context = null;
}
@Override
public IProvisioningAgent addingService(ServiceReference<IProvisioningAgent> reference) {
if (providerRegistration != null) {
return null;
}
if (!Boolean.TRUE.toString().equals(reference.getProperty(IProvisioningAgent.SERVICE_CURRENT))) {
return null;
}
BundleContext ctxt = Activator.getContext();
IProvisioningAgent agent = ctxt.getService(reference);
provider = new ProvCommandProvider(ctxt.getProperty("eclipse.p2.profile"), agent); //$NON-NLS-1$
providerRegistration = ctxt.registerService(PROVIDER_NAME, provider, null);
this.provAgent = agent;
return agent;
}
@Override
public void modifiedService(ServiceReference<IProvisioningAgent> reference, IProvisioningAgent service) {
// nothing
}
@Override
public void removedService(ServiceReference<IProvisioningAgent> reference, IProvisioningAgent service) {
if (provAgent != service) {
return;
}
if (providerRegistration != null)
providerRegistration.unregister();
providerRegistration = null;
provider = null;
provAgent = null;
}
}
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