| /******************************************************************************* |
| * Copyright (c) 2009, 2012 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.e4.ui.internal.workbench; |
| |
| import org.eclipse.osgi.service.datalocation.Location; |
| import org.eclipse.osgi.service.debug.DebugOptions; |
| import org.eclipse.osgi.service.debug.DebugTrace; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Filter; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.log.LogService; |
| import org.osgi.service.packageadmin.PackageAdmin; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| public class Activator implements BundleActivator { |
| /** |
| * The bundle symbolic name. |
| */ |
| public static final String PI_WORKBENCH = "org.eclipse.e4.ui.workbench"; //$NON-NLS-1$ |
| |
| private static Activator activator; |
| |
| private BundleContext context; |
| private ServiceTracker locationTracker; |
| private ServiceTracker pkgAdminTracker; |
| |
| private ServiceTracker debugTracker; |
| private ServiceTracker logTracker; |
| |
| private DebugTrace trace; |
| |
| /** |
| * Get the default activator. |
| * |
| * @return a BundleActivator |
| */ |
| public static Activator getDefault() { |
| return activator; |
| } |
| |
| /** |
| * @return the bundle object |
| */ |
| public Bundle getBundle() { |
| return context.getBundle(); |
| } |
| |
| /** |
| * @return the PackageAdmin service from this bundle |
| */ |
| public PackageAdmin getBundleAdmin() { |
| if (pkgAdminTracker == null) { |
| if (context == null) |
| return null; |
| pkgAdminTracker = new ServiceTracker(context, PackageAdmin.class.getName(), null); |
| pkgAdminTracker.open(); |
| } |
| return (PackageAdmin) pkgAdminTracker.getService(); |
| } |
| |
| /** |
| * @param bundleName |
| * the bundle id |
| * @return A bundle if found, or <code>null</code> |
| */ |
| public Bundle getBundleForName(String bundleName) { |
| Bundle[] bundles = getBundleAdmin().getBundles(bundleName, 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; |
| } |
| |
| /** |
| * @return this bundles context |
| */ |
| public BundleContext getContext() { |
| return context; |
| } |
| |
| /** |
| * @return the instance Location service |
| */ |
| public Location getInstanceLocation() { |
| if (locationTracker == null) { |
| Filter filter = null; |
| try { |
| filter = context.createFilter(Location.INSTANCE_FILTER); |
| } catch (InvalidSyntaxException e) { |
| // ignore this. It should never happen as we have tested the |
| // above format. |
| } |
| locationTracker = new ServiceTracker(context, filter, null); |
| locationTracker.open(); |
| } |
| return (Location) locationTracker.getService(); |
| } |
| |
| public void start(BundleContext context) throws Exception { |
| activator = this; |
| this.context = context; |
| } |
| |
| public void stop(BundleContext context) throws Exception { |
| if (pkgAdminTracker != null) { |
| pkgAdminTracker.close(); |
| pkgAdminTracker = null; |
| } |
| if (locationTracker != null) { |
| locationTracker.close(); |
| locationTracker = null; |
| } |
| if (debugTracker != null) { |
| trace = null; |
| debugTracker.close(); |
| debugTracker = null; |
| } |
| if (logTracker != null) { |
| logTracker.close(); |
| logTracker = null; |
| } |
| } |
| |
| public DebugOptions getDebugOptions() { |
| if (debugTracker == null) { |
| if (context == null) |
| return null; |
| debugTracker = new ServiceTracker(context, DebugOptions.class.getName(), null); |
| debugTracker.open(); |
| } |
| return (DebugOptions) debugTracker.getService(); |
| } |
| |
| public DebugTrace getTrace() { |
| if (trace == null) { |
| trace = getDebugOptions().newDebugTrace(PI_WORKBENCH); |
| } |
| return trace; |
| } |
| |
| public static void trace(String option, String msg, Throwable error) { |
| final DebugOptions debugOptions = activator.getDebugOptions(); |
| if (debugOptions.isDebugEnabled() |
| && debugOptions.getBooleanOption(PI_WORKBENCH + option, false)) { |
| System.out.println(msg); |
| if (error != null) { |
| error.printStackTrace(System.out); |
| } |
| } |
| activator.getTrace().trace(option, msg, error); |
| } |
| |
| public LogService getLogService() { |
| LogService logService = null; |
| if (logTracker != null) { |
| logService = (LogService) logTracker.getService(); |
| } else { |
| if (context != null) { |
| logTracker = new ServiceTracker(context, LogService.class.getName(), null); |
| logTracker.open(); |
| logService = (LogService) logTracker.getService(); |
| } |
| } |
| if (logService == null) { |
| logService = new LogService() { |
| public void log(int level, String message) { |
| log(null, level, message, null); |
| } |
| |
| public void log(int level, String message, Throwable exception) { |
| log(null, level, message, exception); |
| } |
| |
| public void log(ServiceReference sr, int level, String message) { |
| log(sr, level, message, null); |
| } |
| |
| public void log(ServiceReference sr, int level, String message, Throwable exception) { |
| if (level == LogService.LOG_ERROR) { |
| System.err.print("ERROR: "); //$NON-NLS-1$ |
| } else if (level == LogService.LOG_WARNING) { |
| System.err.print("WARNING: "); //$NON-NLS-1$ |
| } else if (level == LogService.LOG_INFO) { |
| System.err.print("INFO: "); //$NON-NLS-1$ |
| } else if (level == LogService.LOG_DEBUG) { |
| System.err.print("DEBUG: "); //$NON-NLS-1$ |
| } else { |
| System.err.print("log level " + level + ": "); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| System.err.println(message); |
| if (exception != null) { |
| exception.printStackTrace(System.err); |
| } |
| } |
| }; |
| } |
| return logService; |
| } |
| |
| public static void log(int level, String message) { |
| LogService logService = activator.getLogService(); |
| if (logService != null) |
| logService.log(level, message); |
| } |
| |
| public static void log(int level, String message, Throwable exception) { |
| LogService logService = activator.getLogService(); |
| if (logService != null) |
| logService.log(level, message, exception); |
| } |
| |
| } |