com.yobidrive.diskmap.TokenSynchronizer.java Source code

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Here is the source code for com.yobidrive.diskmap.TokenSynchronizer.java

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/*
 * Copyright 2012-2013 EZC Group S.A. RCS Luxembourg B140949
 * 
 * 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.
 * 
 * @author Francois Vaille
 */

package com.yobidrive.diskmap;

import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * A class for restricting concurrent processings. Adapt content to your needs!
 *
 */
public class TokenSynchronizer {
    private static Log logger = LogFactory.getLog(TokenSynchronizer.class);

    private BlockingQueue<Integer> processingQ = null;

    public TokenSynchronizer(int allowedConcurrent) {
        super();
        processingQ = new ArrayBlockingQueue<Integer>(allowedConcurrent, true);
        try {
            for (int i = 0; i < allowedConcurrent; i++) {
                Integer iInt = new Integer(i);
                processingQ.put(iInt);
            }
        } catch (Throwable th) {
            logger.error("Error putting tokens", th);
        }
    }

    public Integer getToken() {
        /*try {
            Integer iInt = processingQ.take() ;
            return iInt ;
        } catch ( Throwable th ) {
           logger.error("Error getting processing token ", th) ;
           throw new DiskMapManagerException("Error getting processing token")   ;
        }*/
        return new Integer(1);

    }

    public void putToken(Integer token) {
        /*try {
            processingQ.put(token) ;
        } catch ( Throwable th ) {
           logger.error("Error putting back processing token "+token.intValue(), th) ;
           throw new DiskMapManagerException("Error putting processing token")   ;
        }
        */
    }

}