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/*******************************************************************************
* Copyright (c) 2007 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.p2.ui;
import java.net.URL;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.equinox.internal.p2.ui.ProvisioningPropertyManager;
import org.eclipse.equinox.p2.core.eventbus.ProvisioningEventBus;
import org.eclipse.equinox.p2.ui.viewers.StructuredViewerProvisioningListener;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.ui.plugin.AbstractUIPlugin;
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 ProvisioningPropertyManager propertyManager = new ProvisioningPropertyManager();
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(); //$NON-NLS-1$
getBundle("org.eclipse.equinox.frameworkadmin.equinox").start(); //$NON-NLS-1$
getBundle("org.eclipse.equinox.simpleconfigurator.manipulator").start(); //$NON-NLS-1$
initializeImages();
}
public void stop(BundleContext bundleContext) throws Exception {
try {
plugin = null;
ProvUIActivator.context = null;
} finally {
super.stop(bundleContext);
}
}
public void addProvisioningListener(StructuredViewerProvisioningListener listener) {
// TODO hack for unsupported repository events.
// see https://bugs.eclipse.org/bugs/show_bug.cgi?id=197052
if ((listener.getEventTypes() & StructuredViewerProvisioningListener.PROV_EVENT_REPOSITORY) == StructuredViewerProvisioningListener.PROV_EVENT_REPOSITORY) {
propertyManager.addPropertyChangeListener(listener);
} else {
ServiceReference busReference = context.getServiceReference(ProvisioningEventBus.class.getName());
ProvisioningEventBus bus = (ProvisioningEventBus) context.getService(busReference);
bus.addListener(listener);
}
}
// TODO hack for triggering events from the UI.
public void notifyListeners(PropertyChangeEvent event) {
propertyManager.notifyListeners(event);
}
public void removeProvisioningListener(StructuredViewerProvisioningListener listener) {
if ((listener.getEventTypes() & StructuredViewerProvisioningListener.PROV_EVENT_REPOSITORY) == StructuredViewerProvisioningListener.PROV_EVENT_REPOSITORY) {
propertyManager.removePropertyChangeListener(listener);
} else {
ServiceReference busReference = context.getServiceReference(ProvisioningEventBus.class.getName());
ProvisioningEventBus bus = (ProvisioningEventBus) context.getService(busReference);
bus.removeListener(listener);
}
}
private void initializeImages() {
createImageDescriptor(ProvUIImages.IMG_METADATA_REPOSITORY);
createImageDescriptor(ProvUIImages.IMG_ARTIFACT_REPOSITORY);
createImageDescriptor(ProvUIImages.IMG_IU);
createImageDescriptor(ProvUIImages.IMG_UNINSTALLED_IU);
createImageDescriptor(ProvUIImages.IMG_PROFILE);
}
/**
* Creates an image and places it in the image registry.
*/
private void createImageDescriptor(String id) {
URL url = FileLocator.find(getBundle(), new Path(ProvUIImages.ICON_PATH + id), null);
ImageDescriptor desc = ImageDescriptor.createFromURL(url);
getImageRegistry().put(id, desc);
}
}
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