/*
* Copyright 2004-2009 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.compass.core.lucene.engine.transaction.support;
import java.io.IOException;
import java.util.concurrent.Callable;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.lucene.index.IndexWriter;
import org.apache.lucene.store.Directory;
import org.compass.core.engine.SearchEngineException;
import org.compass.core.lucene.engine.manager.LuceneSearchEngineIndexManager;
/**
* A simple callable that commits an index writer for a given sub index.
*
* @author kimchy
*/
public class CommitCallable implements Callable {
private static final Log logger = LogFactory.getLog(CommitCallable.class);
private final LuceneSearchEngineIndexManager indexManager;
private final String subIndex;
private final IndexWriter indexWriter;
private final boolean invalidateCacheOnCommit;
public CommitCallable(LuceneSearchEngineIndexManager indexManager, String subIndex, IndexWriter indexWriter, boolean invalidateCacheOnCommit) {
this.indexManager = indexManager;
this.subIndex = subIndex;
this.indexWriter = indexWriter;
this.invalidateCacheOnCommit = invalidateCacheOnCommit;
}
public Object call() throws Exception {
try {
indexWriter.commit();
indexWriter.close();
} catch (IOException e) {
Directory dir = indexManager.getStore().openDirectory(subIndex);
try {
if (IndexWriter.isLocked(dir)) {
IndexWriter.unlock(dir);
}
} catch (Exception e1) {
logger.warn("Failed to check for locks or unlock failed commit for sub index [" + subIndex + "]", e);
}
throw new SearchEngineException("Failed commit transaction sub index [" + subIndex + "]", e);
} finally {
indexManager.getIndexWritersManager().trackCloseIndexWriter(subIndex, indexWriter);
}
if (invalidateCacheOnCommit) {
if (logger.isTraceEnabled()) {
logger.trace("Invalidating cache after commit for sub index [" + subIndex + "]");
}
indexManager.getIndexHoldersCache().invalidateCache(subIndex);
}
return null;
}
}