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/**********************************************************************
* Copyright (c) 2005 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 - Initial API and implementation
**********************************************************************/
package org.eclipse.cdt.internal.core.index.ctagsindexer;
import java.io.IOException;
import org.eclipse.cdt.internal.core.index.IIndex;
import org.eclipse.cdt.internal.core.search.indexing.IndexManager;
import org.eclipse.cdt.internal.core.search.indexing.ReadWriteMonitor;
import org.eclipse.cdt.internal.core.search.processing.JobManager;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IProgressMonitor;
/**
* @author Bogdan Gheorghe
*/
public class CTagsSaveIndex extends CTagsIndexRequest {
public CTagsSaveIndex(IPath indexPath, CTagsIndexer indexer) {
super(indexPath, indexer);
}
public boolean execute(IProgressMonitor progressMonitor) {
if (progressMonitor != null && progressMonitor.isCanceled()) return true;
/* ensure no concurrent write access to index */
IIndex index = indexer.getIndex(this.indexPath, true /*reuse index file*/, false /*don't create if none*/);
if (index == null) return true;
ReadWriteMonitor monitor = indexer.getMonitorFor(index);
if (monitor == null) return true; // index got deleted since acquired
try {
monitor.enterWrite(); // ask permission to write
indexer.saveIndex(index);
} catch (IOException e) {
if (IndexManager.VERBOSE) {
JobManager.verbose("-> failed to save index " + this.indexPath + " because of the following exception:"); //$NON-NLS-1$ //$NON-NLS-2$
e.printStackTrace();
}
return false;
} finally {
monitor.exitWrite(); // free write lock
}
return true;
}
public String toString() {
return "saving index for " + this.indexPath; //$NON-NLS-1$
}
}
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