/*******************************************************************************
* Copyright (c) 2007, 2009 Tom Schindl 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:
* Tom Schindl - initial API and implementation
******************************************************************************/
package org.eclipse.core.internal.databinding.observable;
import java.util.ArrayList;
import org.eclipse.core.databinding.util.ILogger;
import org.eclipse.core.databinding.util.Policy;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.osgi.framework.log.FrameworkLog;
import org.eclipse.osgi.framework.log.FrameworkLogEntry;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.util.tracker.ServiceTracker;
/**
* @since 3.3
*
*/
public class Activator implements BundleActivator {
/**
* The plug-in ID
*/
public static final String PLUGIN_ID = "org.eclipse.core.databinding"; //$NON-NLS-1$
private volatile static ServiceTracker _frameworkLogTracker;
/**
* The constructor
*/
public Activator() {
}
public void start(BundleContext context) throws Exception {
_frameworkLogTracker = new ServiceTracker(context, FrameworkLog.class.getName(), null);
_frameworkLogTracker.open();
Policy.setLog(new ILogger() {
public void log(IStatus status) {
ServiceTracker frameworkLogTracker = _frameworkLogTracker;
FrameworkLog log = frameworkLogTracker == null ? null : (FrameworkLog) frameworkLogTracker.getService();
if (log != null) {
log.log(createLogEntry(status));
} else {
// fall back to System.err
System.err.println(status.getPlugin() + " - " + status.getCode() + " - " + status.getMessage()); //$NON-NLS-1$//$NON-NLS-2$
if( status.getException() != null ) {
status.getException().printStackTrace(System.err);
}
}
}
});
}
// Code copied from PlatformLogWriter.getLog(). Why is logging an IStatus so
// hard?
FrameworkLogEntry createLogEntry(IStatus status) {
Throwable t = status.getException();
ArrayList childlist = new ArrayList();
int stackCode = t instanceof CoreException ? 1 : 0;
// ensure a substatus inside a CoreException is properly logged
if (stackCode == 1) {
IStatus coreStatus = ((CoreException) t).getStatus();
if (coreStatus != null) {
childlist.add(createLogEntry(coreStatus));
}
}
if (status.isMultiStatus()) {
IStatus[] children = status.getChildren();
for (int i = 0; i < children.length; i++) {
childlist.add(createLogEntry(children[i]));
}
}
FrameworkLogEntry[] children = (FrameworkLogEntry[]) (childlist.size() == 0 ? null : childlist.toArray(new FrameworkLogEntry[childlist.size()]));
return new FrameworkLogEntry(status.getPlugin(), status.getSeverity(), status.getCode(), status.getMessage(), stackCode, t, children);
}
public void stop(BundleContext context) throws Exception {
if (_frameworkLogTracker != null) {
_frameworkLogTracker.close();
_frameworkLogTracker = null;
}
}
}