/*******************************************************************************
* Copyright (c) 2007, 2009 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.p2.engine;
import org.eclipse.core.runtime.jobs.Job;
import org.eclipse.equinox.internal.provisional.p2.core.eventbus.IProvisioningEventBus;
import org.eclipse.equinox.internal.provisional.p2.engine.Engine;
import org.eclipse.equinox.internal.provisional.p2.engine.IEngine;
import org.osgi.framework.*;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
public class EngineActivator implements BundleActivator, ServiceTrackerCustomizer {
private static BundleContext context;
public static final String ID = "org.eclipse.equinox.p2.engine"; //$NON-NLS-1$
/**
* System property describing the profile registry file format
*/
public static final String PROP_PROFILE_FORMAT = "eclipse.p2.profileFormat"; //$NON-NLS-1$
/**
* Value for the PROP_PROFILE_FORMAT system property specifying raw XML file
* format (used in p2 until and including 3.5.0 release).
*/
public static final String PROFILE_FORMAT_UNCOMPRESSED = "uncompressed"; //$NON-NLS-1$
/**
* System property specifying how the engine should handle unsigned artifacts.
* If this property is undefined, the default value is assumed to be "prompt".
*/
public static final String PROP_UNSIGNED_POLICY = "eclipse.p2.unsignedPolicy"; //$NON-NLS-1$
/**
* System property value specifying that the engine should prompt for confirmation
* when installing unsigned artifacts.
*/
public static final String UNSIGNED_PROMPT = "prompt"; //$NON-NLS-1$
/**
* System property value specifying that the engine should fail when an attempt
* is made to install unsigned artifacts.
*/
public static final String UNSIGNED_FAIL = "fail"; //$NON-NLS-1$
/**
* System property value specifying that the engine should silently allow unsigned
* artifacts to be installed.
*/
public static final String UNSIGNED_ALLOW = "allow"; //$NON-NLS-1$
private ServiceRegistration registration;
private ServiceTracker tracker;
public static BundleContext getContext() {
return context;
}
public Object addingService(ServiceReference reference) {
if (registration == null) {
IProvisioningEventBus eventBus = (IProvisioningEventBus) context.getService(reference);
registration = context.registerService(IEngine.SERVICE_NAME, new Engine(eventBus), null);
return eventBus;
}
return null;
}
public void modifiedService(ServiceReference reference, Object service) {
// nothing to do
}
public void removedService(ServiceReference reference, Object service) {
if (registration != null) {
registration.unregister();
registration = null;
}
}
public void start(BundleContext aContext) throws Exception {
EngineActivator.context = aContext;
tracker = new ServiceTracker(aContext, IProvisioningEventBus.SERVICE_NAME, this);
tracker.open();
}
public void stop(BundleContext aContext) throws Exception {
tracker.close();
tracker = null;
//ensure there are no more profile preference save jobs running
Job.getJobManager().join(ProfilePreferences.PROFILE_SAVE_JOB_FAMILY, null);
EngineActivator.context = null;
}
}
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