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/*******************************************************************************
* Copyright (c) 2008, 2011 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.ui.sdk.scheduler;
import java.io.IOException;
import java.net.URL;
import org.eclipse.core.runtime.*;
import org.eclipse.equinox.internal.p2.core.helpers.ServiceHelper;
import org.eclipse.equinox.internal.provisional.p2.core.eventbus.IProvisioningEventBus;
import org.eclipse.equinox.p2.core.IAgentLocation;
import org.eclipse.equinox.p2.core.IProvisioningAgent;
import org.eclipse.equinox.p2.engine.IProfileRegistry;
import org.eclipse.equinox.p2.engine.ProfileScope;
import org.eclipse.equinox.p2.operations.ProvisioningSession;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.ui.preferences.ScopedPreferenceStore;
import org.eclipse.ui.statushandlers.StatusManager;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
/**
* Activator class for the automatic updates plugin. The automatic updates plugin
* is responsible for scheduling background update checks, based on update settings
* specified by end user settings. The implementation of update checking is provided
* by another plugin that provides an IUpdateChecker implementation.
*/
public class AutomaticUpdatePlugin extends AbstractUIPlugin {
// bundle-relative icon path
public final static String ICON_PATH = "$nl$/icons/"; //$NON-NLS-1$
// tool icons
public final static String IMG_TOOL_UPDATE = "tool/update.gif"; //$NON-NLS-1$
public final static String IMG_TOOL_UPDATE_PROBLEMS = "tool/update_problems.gif"; //$NON-NLS-1$
public final static String IMG_TOOL_CLOSE = "tool/close.gif"; //$NON-NLS-1$
public final static String IMG_TOOL_CLOSE_HOT = "tool/close_hot.gif"; //$NON-NLS-1$
private static AutomaticUpdatePlugin plugin;
private static BundleContext context;
private AutomaticUpdateScheduler scheduler;
private AutomaticUpdater updater;
private ScopedPreferenceStore preferenceStore;
private ProvisioningSession session;
public static final String PLUGIN_ID = "org.eclipse.equinox.p2.ui.sdk.scheduler"; //$NON-NLS-1$
public static BundleContext getContext() {
return context;
}
/**
* Returns the singleton plugin instance
*
* @return the instance
*/
public static AutomaticUpdatePlugin getDefault() {
return plugin;
}
public AutomaticUpdatePlugin() {
// constructor
}
/*
* (non-Javadoc)
*
* @see
* org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext
* )
*/
public void start(BundleContext bundleContext) throws Exception {
super.start(bundleContext);
plugin = this;
context = bundleContext;
IProvisioningAgent agent = (IProvisioningAgent) ServiceHelper.getService(getContext(), IProvisioningAgent.SERVICE_NAME);
session = new ProvisioningSession(agent);
PreferenceInitializer.migratePreferences();
}
public void stop(BundleContext bundleContext) throws Exception {
if (scheduler != null) {
scheduler.shutdown();
scheduler = null;
}
if (updater != null) {
updater.shutdown();
updater = null;
}
plugin = null;
super.stop(bundleContext);
context = null;
}
public AutomaticUpdateScheduler getScheduler() {
// If the scheduler was disabled, it does not get initialized
if (scheduler == null)
scheduler = new AutomaticUpdateScheduler();
return scheduler;
}
public AutomaticUpdater getAutomaticUpdater() {
if (updater == null)
updater = new AutomaticUpdater();
return updater;
}
void setScheduler(AutomaticUpdateScheduler scheduler) {
this.scheduler = scheduler;
}
public IProvisioningEventBus getProvisioningEventBus() {
ServiceReference<?> busReference = context.getServiceReference(IProvisioningEventBus.SERVICE_NAME);
if (busReference == null)
return null;
return (IProvisioningEventBus) context.getService(busReference);
}
/*
* Overridden to use a profile scoped preference store. (non-Javadoc)
*
* @see org.eclipse.ui.plugin.AbstractUIPlugin#getPreferenceStore()
*/
public IPreferenceStore getPreferenceStore() {
// Create the preference store lazily.
if (preferenceStore == null) {
final IAgentLocation agentLocation = getAgentLocation();
if (agentLocation == null)
return super.getPreferenceStore();
preferenceStore = new ScopedPreferenceStore(new ProfileScope(agentLocation, IProfileRegistry.SELF), PLUGIN_ID);
}
return preferenceStore;
}
public IAgentLocation getAgentLocation() {
ServiceReference<?> ref = getContext().getServiceReference(IAgentLocation.SERVICE_NAME);
if (ref == null)
return null;
IAgentLocation location = (IAgentLocation) getContext().getService(ref);
getContext().ungetService(ref);
return location;
}
public void savePreferences() {
if (preferenceStore != null)
try {
preferenceStore.save();
} catch (IOException e) {
StatusManager.getManager().handle(new Status(IStatus.ERROR, AutomaticUpdatePlugin.PLUGIN_ID, 0, AutomaticUpdateMessages.ErrorSavingPreferences, e), StatusManager.LOG | StatusManager.SHOW);
}
}
protected void initializeImageRegistry(ImageRegistry reg) {
createImageDescriptor(IMG_TOOL_UPDATE, reg);
createImageDescriptor(IMG_TOOL_UPDATE_PROBLEMS, reg);
createImageDescriptor(IMG_TOOL_CLOSE, reg);
createImageDescriptor(IMG_TOOL_CLOSE_HOT, reg);
}
/**
* Creates the specified image descriptor and registers it
*/
private void createImageDescriptor(String id, ImageRegistry reg) {
URL url = FileLocator.find(getBundle(), new Path(ICON_PATH).append(id), null);
ImageDescriptor desc = ImageDescriptor.createFromURL(url);
reg.put(id, desc);
}
public ProvisioningSession getSession() {
return session;
}
}
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