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/*******************************************************************************
* Copyright (c) 2004 INRIA.
* 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:
* Tarik Idrissi (INRIA) - initial API and implementation
*******************************************************************************/
package org.eclipse.m2m.atl.adt.ui.startup;
import java.util.logging.Level;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IResourceDelta;
import org.eclipse.core.resources.IResourceDeltaVisitor;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.Path;
import org.eclipse.m2m.atl.common.ATLLogger;
/**
* Resource visitor.
*
* @author <a href="mailto:tarik.idrissi@laposte.net">Tarik Idrissi</a>
*/
public class ResourceDeltaVisitor implements IResourceDeltaVisitor {
/**
* <p>
* Finds the asm file associated to an atl file.
* </p>
* <p>
* A file is considered to be the asm file associated to an atl file if it has the same name but the
* extension "asm" and is located in the same folder
*
* @param res
* the atl file for which to find the associated asm file
* @return <code>null</code> if the atl file does not have an associated asm, the asm file otherwize.
*/
private IResource findAsmFile(IResource res) {
String atlFileName = res.getName();
String asmFileName = atlFileName.substring(0, atlFileName.lastIndexOf('.')) + ".asm"; //$NON-NLS-1$
IFile asm = res.getParent().getFile(new Path(asmFileName));
if (asm.exists()) {
return asm;
} else {
return null;
}
}
/**
* Deletes the asm file associated to an atl file.
*
* @param res
* the atl file for which to delete the associated asm file
*/
private void delAsmFile(final IResource res) {
Thread op = new Thread() {
@Override
public void run() {
IResource asm = findAsmFile(res);
if (asm != null) {
try {
asm.delete(true, null);
} catch (CoreException e) {
ATLLogger.log(Level.SEVERE, e.getLocalizedMessage(), e);
}
}
}
};
op.start();
}
/**
* {@inheritDoc}
*
* @see org.eclipse.core.resources.IResourceDeltaVisitor#visit(org.eclipse.core.resources.IResourceDelta)
*/
public boolean visit(IResourceDelta delta) throws CoreException {
IResource res = delta.getResource();
switch (delta.getKind()) {
case IResourceDelta.REMOVED: // when a file is removed or renamed.
if ("atl".equals(res.getFileExtension())) { //$NON-NLS-1$
delAsmFile(res);
}
break;
default:
break;
}
return true;
}
}
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