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/*******************************************************************************
* Copyright (c) 2000, 2006 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.team.internal.core.mapping;
import java.util.*;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.team.core.diff.*;
/**
* Implementation of {@link IDiffChangeEvent}
*/
public class DiffChangeEvent implements IDiffChangeEvent {
private final IDiffTree tree;
// List that accumulate changes
// SyncInfo
private Map changedResources = new HashMap();
private Set removedResources = new HashSet();
private Map addedResources = new HashMap();
private boolean reset = false;
private List errors = new ArrayList();
/**
* Create a diff change event
* @param tree the originating tree
*/
public DiffChangeEvent(IDiffTree tree) {
this.tree = tree;
}
/* (non-Javadoc)
* @see org.eclipse.team.core.delta.ISyncDeltaChangeEvent#getTree()
*/
public IDiffTree getTree() {
return tree;
}
/* (non-Javadoc)
* @see org.eclipse.team.core.delta.ISyncDeltaChangeEvent#getAdditions()
*/
public IDiff[] getAdditions() {
return (IDiff[]) addedResources.values().toArray(new IDiff[addedResources.size()]);
}
/* (non-Javadoc)
* @see org.eclipse.team.core.delta.ISyncDeltaChangeEvent#getRemovals()
*/
public IPath[] getRemovals() {
return (IPath[]) removedResources.toArray(new IPath[removedResources.size()]);
}
/* (non-Javadoc)
* @see org.eclipse.team.core.delta.ISyncDeltaChangeEvent#getChanges()
*/
public IDiff[] getChanges() {
return (IDiff[]) changedResources.values().toArray(new IDiff[changedResources.size()]);
}
public void added(IDiff delta) {
if (removedResources.contains(delta.getPath())) {
// A removal followed by an addition is treated as a change
removedResources.remove(delta.getPath());
changed(delta);
} else {
addedResources.put(delta.getPath(), delta);
}
}
public void removed(IPath path, IDiff delta) {
if (changedResources.containsKey(path)) {
// No use in reporting the change since it has subsequently been removed
changedResources.remove(path);
} else if (addedResources.containsKey(path)) {
// An addition followed by a removal can be dropped
addedResources.remove(path);
return;
}
removedResources.add(path);
}
public void changed(IDiff delta) {
if (addedResources.containsKey(delta.getPath())) {
// An addition followed by a change is an addition
addedResources.put(delta.getPath(), delta);
return;
}
changedResources.put(delta.getPath(), delta);
}
public void reset() {
reset = true;
}
public boolean isReset() {
return reset;
}
public boolean isEmpty() {
return changedResources.isEmpty() && removedResources.isEmpty() && addedResources.isEmpty();
}
public void errorOccurred(IStatus status) {
errors .add(status);
}
public IStatus[] getErrors() {
return (IStatus[]) errors.toArray(new IStatus[errors.size()]);
}
}
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