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/*******************************************************************************
* Copyright (c) 2007, 2008 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;
import java.net.URL;
import java.util.EventObject;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.equinox.internal.provisional.p2.core.ProvisionException;
import org.eclipse.equinox.internal.provisional.p2.core.eventbus.IProvisioningEventBus;
import org.eclipse.equinox.internal.provisional.p2.core.eventbus.ProvisioningListener;
import org.eclipse.equinox.internal.provisional.p2.engine.*;
import org.eclipse.equinox.internal.provisional.p2.ui.*;
import org.eclipse.equinox.internal.provisional.p2.ui.operations.ProvisioningUtil;
import org.eclipse.equinox.internal.provisional.p2.ui.viewers.StructuredViewerProvisioningListener;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.eclipse.ui.statushandlers.StatusManager;
import org.osgi.framework.*;
import org.osgi.service.packageadmin.PackageAdmin;
/**
* Controls the lifecycle of the provisioning UI bundle
*
* @since 3.4
*/
public class ProvUIActivator extends AbstractUIPlugin {
private static BundleContext context;
private static PackageAdmin packageAdmin = null;
private static ServiceReference packageAdminRef = null;
private static ProvUIActivator plugin;
private ProvisioningListener profileChangeListener;
public static final String PLUGIN_ID = "org.eclipse.equinox.p2.ui"; //$NON-NLS-1$
public static BundleContext getContext() {
return context;
}
/**
* Returns the singleton plugin instance
*
* @return the instance
*/
public static ProvUIActivator getDefault() {
return plugin;
}
public static Bundle getBundle(String symbolicName) {
if (packageAdmin == null)
return null;
Bundle[] bundles = packageAdmin.getBundles(symbolicName, null);
if (bundles == null)
return null;
// Return the first bundle that is not installed or uninstalled
for (int i = 0; i < bundles.length; i++) {
if ((bundles[i].getState() & (Bundle.INSTALLED | Bundle.UNINSTALLED)) == 0) {
return bundles[i];
}
}
return null;
}
public ProvUIActivator() {
// do nothing
}
/*
* (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;
ProvUIActivator.context = bundleContext;
packageAdminRef = bundleContext.getServiceReference(PackageAdmin.class.getName());
packageAdmin = (PackageAdmin) bundleContext.getService(packageAdminRef);
// TODO for now we need to manually start up the provisioning infrastructure
// because the Eclipse Application launch config won't let me specify bundles to start.
getBundle("org.eclipse.equinox.p2.exemplarysetup").start(Bundle.START_TRANSIENT); //$NON-NLS-1$
getBundle("org.eclipse.equinox.frameworkadmin.equinox").start(Bundle.START_TRANSIENT); //$NON-NLS-1$
getBundle("org.eclipse.equinox.simpleconfigurator.manipulator").start(Bundle.START_TRANSIENT); //$NON-NLS-1$
addProfileChangeListener();
}
public void stop(BundleContext bundleContext) throws Exception {
try {
removeProfileChangeListener();
plugin = null;
ProvUIActivator.context = null;
} finally {
super.stop(bundleContext);
}
}
private void addProfileChangeListener() {
if (profileChangeListener == null) {
profileChangeListener = new ProvisioningListener() {
public void notify(EventObject o) {
if (o instanceof ProfileEvent) {
ProfileEvent event = (ProfileEvent) o;
try {
IProfile selfProfile = ProvisioningUtil.getProfile(IProfileRegistry.SELF);
if (selfProfile != null && (selfProfile.getProfileId().equals(event.getProfileId()))) {
if (event.getReason() == ProfileEvent.CHANGED)
ProvisioningOperationRunner.requestRestart(false);
}
} catch (ProvisionException e) {
ProvUI.handleException(e, ProvUIMessages.ProvUIActivator_ExceptionDuringProfileChange, StatusManager.LOG);
}
}
}
};
}
IProvisioningEventBus bus = getProvisioningEventBus();
if (bus != null)
bus.addListener(profileChangeListener);
}
private void removeProfileChangeListener() {
if (profileChangeListener != null) {
IProvisioningEventBus bus = getProvisioningEventBus();
if (bus != null)
bus.removeListener(profileChangeListener);
}
}
public void addProvisioningListener(StructuredViewerProvisioningListener listener) {
getProvisioningEventBus().addListener(listener);
}
public void signalBatchOperationStart() {
getProvisioningEventBus().publishEvent(new BatchChangeBeginningEvent(this));
}
public void signalBatchOperationComplete() {
getProvisioningEventBus().publishEvent(new BatchChangeCompleteEvent(this));
}
public IProvisioningEventBus getProvisioningEventBus() {
ServiceReference busReference = context.getServiceReference(IProvisioningEventBus.SERVICE_NAME);
if (busReference == null)
return null;
return (IProvisioningEventBus) context.getService(busReference);
}
public void removeProvisioningListener(StructuredViewerProvisioningListener listener) {
getProvisioningEventBus().removeListener(listener);
}
protected void initializeImageRegistry(ImageRegistry reg) {
createImageDescriptor(ProvUIImages.IMG_METADATA_REPOSITORY, reg);
createImageDescriptor(ProvUIImages.IMG_ARTIFACT_REPOSITORY, reg);
createImageDescriptor(ProvUIImages.IMG_IU, reg);
createImageDescriptor(ProvUIImages.IMG_DISABLED_IU, reg);
createImageDescriptor(ProvUIImages.IMG_UPDATED_IU, reg);
createImageDescriptor(ProvUIImages.IMG_CATEGORY, reg);
createImageDescriptor(ProvUIImages.IMG_PROFILE, reg);
createImageDescriptor(ProvUIImages.IMG_TOOL_UPDATE, reg);
createImageDescriptor(ProvUIImages.IMG_TOOL_UPDATE_PROBLEMS, reg);
createImageDescriptor(ProvUIImages.IMG_TOOL_CLOSE, reg);
createImageDescriptor(ProvUIImages.IMG_TOOL_CLOSE_HOT, reg);
createImageDescriptor(ProvUIImages.WIZARD_BANNER_INSTALL, reg);
createImageDescriptor(ProvUIImages.WIZARD_BANNER_REVERT, reg);
createImageDescriptor(ProvUIImages.WIZARD_BANNER_UNINSTALL, reg);
createImageDescriptor(ProvUIImages.WIZARD_BANNER_UPDATE, reg);
}
/**
* Creates the specified image descriptor and registers it
*/
private void createImageDescriptor(String id, ImageRegistry reg) {
URL url = FileLocator.find(getBundle(), new Path(ProvUIImages.ICON_PATH + id), null);
ImageDescriptor desc = ImageDescriptor.createFromURL(url);
reg.put(id, desc);
}
}
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