/*******************************************************************************
* Copyright (c) 2000, 2005 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.core.internal.events;
import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.PerformanceStats;
/**
* An ResourceStats collects and aggregates timing data about an event such as a builder running, an
* editor opening, etc.
*/
public class ResourceStats {
/**
* The event that is currently occurring, maybe <code>null</code>
*/
private static PerformanceStats currentStats;
//performance event names
public static final String EVENT_BUILDERS= ResourcesPlugin.PI_RESOURCES + "/perf/builders"; //$NON-NLS-1$
public static final String EVENT_LISTENERS= ResourcesPlugin.PI_RESOURCES + "/perf/listeners"; //$NON-NLS-1$
public static final String EVENT_SAVE_PARTICIPANTS= ResourcesPlugin.PI_RESOURCES + "/perf/save.participants"; //$NON-NLS-1$
public static final String EVENT_SNAPSHOT= ResourcesPlugin.PI_RESOURCES + "/perf/snapshot"; //$NON-NLS-1$
//performance event enablement
public static boolean TRACE_BUILDERS= PerformanceStats.isEnabled(ResourceStats.EVENT_BUILDERS);
public static boolean TRACE_LISTENERS= PerformanceStats.isEnabled(ResourceStats.EVENT_LISTENERS);
public static boolean TRACE_SAVE_PARTICIPANTS= PerformanceStats.isEnabled(ResourceStats.EVENT_SAVE_PARTICIPANTS);
public static boolean TRACE_SNAPSHOT= PerformanceStats.isEnabled(ResourceStats.EVENT_SNAPSHOT);
public static void endBuild() {
if (currentStats != null)
currentStats.endRun();
currentStats= null;
}
public static void endNotify() {
if (currentStats != null)
currentStats.endRun();
currentStats= null;
}
public static void endSave() {
if (currentStats != null)
currentStats.endRun();
currentStats= null;
}
public static void endSnapshot() {
if (currentStats != null)
currentStats.endRun();
currentStats= null;
}
/**
* Notifies the stats tool that a resource change listener has been added.
*/
public static void listenerAdded(IResourceChangeListener listener) {
if (listener != null)
PerformanceStats.getStats(EVENT_LISTENERS, listener.getClass().getName());
}
/**
* Notifies the stats tool that a resource change listener has been removed.
*/
public static void listenerRemoved(IResourceChangeListener listener) {
if (listener != null)
PerformanceStats.removeStats(EVENT_LISTENERS, listener.getClass().getName());
}
public static void startBuild(IncrementalProjectBuilder builder) {
currentStats= PerformanceStats.getStats(EVENT_BUILDERS, builder);
currentStats.startRun(builder.getProject().getName());
}
public static void startNotify(IResourceChangeListener listener) {
currentStats= PerformanceStats.getStats(EVENT_LISTENERS, listener);
currentStats.startRun();
}
public static void startSnapshot() {
currentStats= PerformanceStats.getStats(EVENT_SNAPSHOT, ResourcesPlugin.getWorkspace());
currentStats.startRun();
}
public static void startSave(ISaveParticipant participant) {
currentStats= PerformanceStats.getStats(EVENT_SAVE_PARTICIPANTS, participant);
currentStats.startRun();
}
}