/*******************************************************************************
* Copyright (c) 2012-2017 Codenvy, S.A.
* 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:
* Codenvy, S.A. - initial API and implementation
*******************************************************************************/
package org.eclipse.che.api.vfs.search.impl;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
import org.apache.lucene.store.SingleInstanceLockFactory;
import org.eclipse.che.api.core.ServerException;
import org.eclipse.che.api.core.util.FileCleaner;
import org.eclipse.che.api.vfs.VirtualFileFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.File;
import java.io.IOException;
import static org.eclipse.che.commons.lang.IoUtil.deleteRecursive;
/**
* Filesystem based LuceneSearcher which cleans index directory after call method {@link #close()}.
*
* @author andrew00x
*/
public class FSLuceneSearcher extends LuceneSearcher {
private static final Logger LOG = LoggerFactory.getLogger(FSLuceneSearcher.class);
private final File indexDirectory;
FSLuceneSearcher(File indexDirectory, VirtualFileFilter filter) {
this(indexDirectory, filter, null);
}
FSLuceneSearcher(File indexDirectory, VirtualFileFilter filter, AbstractLuceneSearcherProvider.CloseCallback closeCallback) {
super(filter, closeCallback);
this.indexDirectory = indexDirectory;
}
@Override
protected Directory makeDirectory() throws ServerException {
try {
return FSDirectory.open(indexDirectory.toPath(), new SingleInstanceLockFactory());
} catch (IOException e) {
throw new ServerException(e);
}
}
@Override
protected void afterClose() throws IOException {
if (!deleteRecursive(indexDirectory)) {
LOG.warn("Unable delete index directory '{}', add it in FileCleaner", indexDirectory);
FileCleaner.addFile(indexDirectory);
}
super.afterClose();
}
}