com.workplacesystems.utilsj.threadpool.ThreadPool.java Source code

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Here is the source code for com.workplacesystems.utilsj.threadpool.ThreadPool.java

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/*
 * Copyright 2010 Workplace Systems PLC (http://www.workplacesystems.com/).
 *
 * 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 com.workplacesystems.utilsj.threadpool;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.commons.pool.impl.GenericObjectPool;

/**
 */
public class ThreadPool extends GenericObjectPool {
    /**
     * Logger for this class
     */
    private final static Log log = LogFactory.getLog(ThreadPool.class);

    /**
     * Constructor when there is no configuration available. Please refer
     * commons-pooling for more details on the configuration parameters.
     * @param objFactory - The factory to be used for thread creation.
     */
    public ThreadPool(ThreadObjectFactory objFactory) {
        super(objFactory);
        this.setMaxIdle(2); // maximum idle threads
        this.setMaxActive(4); // maximum active threads.
        this.setMinEvictableIdleTimeMillis(30000); //Evictor runs every 30 secs.
        this.setTestOnBorrow(true); // check if the thread is still valid
        //this.setMaxWait(1000); // 1 second wait when threads are not available.
    }

    /**
     * Constructor to be used when there is a configuration available.
     * @param objFactory -
     *           The factory to be used for thread creation..
     * @param config -
     *           This could be created by loading a properties file.
     */
    public ThreadPool(ThreadObjectFactory objFactory, GenericObjectPool.Config config) {
        super(objFactory, config);
    }

    /* (non-Javadoc)
     * @see org.apache.commons.pool.ObjectPool#borrowObject()
     */
    @Override
    public Object borrowObject() throws Exception {
        log.debug(" borrowing object..");
        WorkerThread thread = (WorkerThread) super.borrowObject();
        thread.setPool(this);
        return thread;
    }

    /* (non-Javadoc)
     * @see org.apache.commons.pool.ObjectPool#returnObject(java.lang.Object)
     */
    @Override
    public void returnObject(Object obj) throws Exception {
        log.debug(" returning object.." + obj);
        super.returnObject(obj);
    }
}