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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.team.internal.ccvs.ui;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.lang.reflect.InvocationTargetException;
import org.eclipse.compare.CompareUI;
import org.eclipse.compare.IStreamContentAccessor;
import org.eclipse.compare.ITypedElement;
import org.eclipse.compare.structuremergeviewer.IStructureComparator;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.graphics.Image;
import org.eclipse.team.core.TeamException;
import org.eclipse.team.core.sync.IRemoteResource;
import org.eclipse.team.internal.ccvs.core.ICVSRemoteResource;
/**
* A class for comparing ICVSRemoteResource objects
*/
public class ResourceEditionNode implements IStructureComparator, ITypedElement, IStreamContentAccessor {
private ICVSRemoteResource resource;
private ResourceEditionNode[] children;
/**
* Creates a new ResourceEditionNode on the given resource edition.
*/
public ResourceEditionNode(ICVSRemoteResource resourceEdition) {
this.resource = resourceEdition;
}
/**
* Returns true if both resources names are identical.
* The content is not considered.
* @see IComparator#equals
*/
public boolean equals(Object other) {
if (other instanceof ITypedElement) {
String otherName = ((ITypedElement)other).getName();
return getName().equals(otherName);
}
return super.equals(other);
}
/**
* Enumerate children of this node (if any).
*/
public Object[] getChildren() {
if (children == null) {
children = new ResourceEditionNode[0];
if (resource != null) {
try {
CVSUIPlugin.runWithProgress(null, true /*cancelable*/, new IRunnableWithProgress() {
public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
try {
IRemoteResource[] members = resource.members(monitor);
children = new ResourceEditionNode[members.length];
for (int i = 0; i < members.length; i++) {
children[i] = new ResourceEditionNode((ICVSRemoteResource)members[i]);
}
} catch (TeamException e) {
throw new InvocationTargetException(e);
}
}
});
} catch (InterruptedException e) {
// operation canceled
} catch (InvocationTargetException e) {
Throwable t = e.getTargetException();
if (t instanceof TeamException) {
CVSUIPlugin.log(((TeamException) t).getStatus());
}
}
}
}
return children;
}
/**
* @see IStreamContentAccessor#getContents()
*/
public InputStream getContents() throws CoreException {
if (resource == null) {
return null;
}
try {
final InputStream[] holder = new InputStream[1];
CVSUIPlugin.runWithProgress(null, true /*cancelable*/, new IRunnableWithProgress() {
public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
try {
holder[0] = resource.getContents(monitor);
} catch (TeamException e) {
throw new InvocationTargetException(e);
}
}
});
return holder[0];
} catch (InterruptedException e) {
// operation canceled
} catch (InvocationTargetException e) {
Throwable t = e.getTargetException();
if (t instanceof TeamException) {
throw new CoreException(((TeamException) t).getStatus());
}
// should not get here
}
return new ByteArrayInputStream(new byte[0]);
}
public Image getImage() {
return CompareUI.getImage(resource);
}
/**
* Returns the name of this node.
*/
public String getName() {
return resource == null ? "" : resource.getName(); //$NON-NLS-1$
}
public ICVSRemoteResource getRemoteResource() {
return resource;
}
/**
* Returns the comparison type for this node.
*/
public String getType() {
if (resource == null) {
return UNKNOWN_TYPE;
}
if (resource.isContainer()) {
return FOLDER_TYPE;
}
String name = resource.getName();
name = name.substring(name.lastIndexOf('.') + 1);
return name.length() == 0 ? UNKNOWN_TYPE : name;
}
/**
* @see IComparator#equals
*/
public int hashCode() {
return getName().hashCode();
}
}
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