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/*
 * 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.needle.terracotta;

import java.util.concurrent.ConcurrentHashMap;

import org.apache.lucene.store.LockFactory;
import org.compass.core.config.CompassSettings;
import org.compass.core.engine.SearchEngineException;
import org.compass.core.lucene.engine.store.LockFactoryProvider;

/**
 * @author kimchy
 */
public class TerracottaLockFactoryProvider implements LockFactoryProvider {

    private ConcurrentHashMap lockFactories = new ConcurrentHashMap();
    
    public LockFactory createLockFactory(String path, String subContex, String subIndex, CompassSettings settings) throws SearchEngineException {
        String fullPath = path + "/" + subContex + "/" + subIndex + "/";
        LockFactory lockFactory = lockFactories.get(fullPath);
        if (lockFactory == null) {
            lockFactory = new TerracottaLockFactory(fullPath);
            lockFactories.put(fullPath, lockFactory);
        }
        return lockFactory;
    }
}