Copyright (c) 2000, 2015 IBM Corporation and others.
This program and the accompanying materials
are made available under the terms of the Eclipse Public License 2.0
which accompanies this distribution, and is available at
https://www.eclipse.org/legal/epl-2.0/
SPDX-License-Identifier: EPL-2.0
Contributors:
    IBM Corporation - initial API and implementation
    James Blackburn (Broadcom Corp.) - ongoing development
    Lars Vogel  - Bug 473427
/*******************************************************************************
 * Copyright (c) 2000, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     James Blackburn (Broadcom Corp.) - ongoing development
 *     Lars Vogel <Lars.Vogel@vogella.com> - Bug 473427
 *******************************************************************************/
package org.eclipse.core.internal.events;

import java.util.*;
import org.eclipse.core.internal.resources.*;
import org.eclipse.core.resources.*;
import org.eclipse.core.runtime.IPath;

public class ResourceChangeEvent extends EventObject implements IResourceChangeEvent {
	private static final IMarkerDelta[] NO_MARKER_DELTAS = new IMarkerDelta[0];
	private static final long serialVersionUID = 1L;
	IResourceDelta delta;
	IResource resource;

	
The build trigger for this event, or 0 if not applicable.
/**
	 * The build trigger for this event, or 0 if not applicable.
	 */
	private int trigger = 0;
	int type;

	protected ResourceChangeEvent(Object source, int type, IResource resource) {
		super(source);
		this.resource = resource;
		this.type = type;
	}

	public ResourceChangeEvent(Object source, int type, int buildKind, IResourceDelta delta) {
		super(source);
		this.delta = delta;
		this.trigger = buildKind;
		this.type = type;
	}

	
See Also:
findMarkerDeltas.findMarkerDeltas(String, boolean)/**
	 * @see IResourceChangeEvent#findMarkerDeltas(String, boolean)
	 */
	@Override
	public IMarkerDelta[] findMarkerDeltas(String findType, boolean includeSubtypes) {
		if (delta == null)
			return NO_MARKER_DELTAS;
		ResourceDeltaInfo info = ((ResourceDelta) delta).getDeltaInfo();
		if (info == null)
			return NO_MARKER_DELTAS;
		//Map of IPath -> MarkerSet containing MarkerDelta objects
		Map<IPath, MarkerSet> markerDeltas = info.getMarkerDeltas();
		if (markerDeltas == null || markerDeltas.isEmpty())
			return NO_MARKER_DELTAS;
		ArrayList<IMarkerDelta> matching = new ArrayList<>();
		Iterator<MarkerSet> deltaSets = markerDeltas.values().iterator();
		while (deltaSets.hasNext()) {
			MarkerSet deltas = deltaSets.next();
			IMarkerSetElement[] elements = deltas.elements();
			for (IMarkerSetElement element : elements) {
				MarkerDelta markerDelta = (MarkerDelta) element;
				//our inclusion test depends on whether we are considering subtypes
				if (findType == null || (includeSubtypes ? markerDelta.isSubtypeOf(findType) : markerDelta.getType().equals(findType)))
					matching.add(markerDelta);
			}
		}
		return matching.toArray(new IMarkerDelta[matching.size()]);
	}

	
See Also:
getBuildKind.getBuildKind()/**
	 * @see IResourceChangeEvent#getBuildKind()
	 */
	@Override
	public int getBuildKind() {
		return trigger;
	}

	
See Also:
getDelta.getDelta()/**
	 * @see IResourceChangeEvent#getDelta()
	 */
	@Override
	public IResourceDelta getDelta() {
		return delta;
	}

	
See Also:
getResource.getResource()/**
	 * @see IResourceChangeEvent#getResource()
	 */
	@Override
	public IResource getResource() {
		return resource;
	}

	
See Also:
getType.getType()/**
	 * @see IResourceChangeEvent#getType()
	 */
	@Override
	public int getType() {
		return type;
	}

	public void setDelta(IResourceDelta value) {
		delta = value;
	}

	public String toDebugString() {
		StringBuilder output = new StringBuilder();
		output.append("\nType: ");//$NON-NLS-1$
		switch (type) {
			case POST_CHANGE :
				output.append("POST_CHANGE"); //$NON-NLS-1$
				break;
			case PRE_CLOSE :
				output.append("PRE_CLOSE"); //$NON-NLS-1$
				break;
			case PRE_DELETE :
				output.append("PRE_DELETE"); //$NON-NLS-1$
				break;
			case PRE_BUILD :
				output.append("PRE_BUILD"); //$NON-NLS-1$
				break;
			case POST_BUILD :
				output.append("POST_BUILD"); //$NON-NLS-1$
				break;
			case PRE_REFRESH :
				output.append("PRE_REFRESH"); //$NON-NLS-1$
				break;
			default :
				output.append("?"); //$NON-NLS-1$
				break;
		}
		output.append("\nBuild kind: "); //$NON-NLS-1$
		switch (trigger) {
			case IncrementalProjectBuilder.FULL_BUILD :
				output.append("FULL_BUILD"); //$NON-NLS-1$
				break;
			case IncrementalProjectBuilder.AUTO_BUILD :
			case IncrementalProjectBuilder.INCREMENTAL_BUILD :
				output.append("INCREMENTAL_BUILD"); //$NON-NLS-1$
				break;
			case IncrementalProjectBuilder.CLEAN_BUILD :
				output.append("CLEAN_BUILD"); //$NON-NLS-1$
				break;
			default :
				output.append(trigger);
				break;
		}
		output.append("\nResource: " + (resource == null ? "null" : resource)); //$NON-NLS-1$ //$NON-NLS-2$
		output.append("\nDelta:" + (delta == null ? " null" : ((ResourceDelta) delta).toDeepDebugString())); //$NON-NLS-1$ //$NON-NLS-2$
		return output.toString();
	}
}