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/*******************************************************************************
* Copyright (c) 2000, 2009 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.jdt.internal.core.search.indexing;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.internal.core.index.Index;
class RemoveFromIndex extends IndexRequest {
String resourceName;
public RemoveFromIndex(String resourceName, IPath containerPath, IndexManager manager) {
super(containerPath, manager);
this.resourceName = resourceName;
}
@Override
public boolean execute(IProgressMonitor progressMonitor) {
if (this.isCancelled || progressMonitor != null && progressMonitor.isCanceled()) return true;
/* ensure no concurrent write access to index */
Index index = this.manager.getIndex(this.containerPath, true, /*reuse index file*/ false /*create if none*/);
if (index == null) return true;
ReadWriteMonitor monitor = index.monitor;
if (monitor == null) return true; // index got deleted since acquired
try {
monitor.enterWrite(); // ask permission to write
index.remove(this.resourceName);
} finally {
monitor.exitWrite(); // free write lock
}
return true;
}
@Override
public String toString() {
return "removing " + this.resourceName + " from index " + this.containerPath; //$NON-NLS-1$ //$NON-NLS-2$
}
}
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