sleepingobjectfactory.java

Apache的通用池Jar包

/*
 * Copyright 1999-2004 The Apache Software Foundation.
 * 
 * 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.apache.commons.pool.performance;

import org.apache.commons.pool.PoolableObjectFactory;

/**
 * Sleepy ObjectFactory (everything takes a while longer)
 * 
 * @author Dirk Verbeeck
 * @version $Revision: 1.5 $ $Date: 2004/02/28 12:16:21 $ 
 */
public class SleepingObjectFactory implements PoolableObjectFactory {

    private int counter = 0;
    private boolean debug = false;

	public Object makeObject() throws Exception {
        Object obj = new Integer(counter++);
        debug("makeObject", obj);
        sleep(500);
		return obj;
	}

	public void destroyObject(Object obj) throws Exception {
        debug("destroyObject", obj);
        sleep(250);
	}

	public boolean validateObject(Object obj) {
        debug("validateObject", obj);
        sleep(30);
		return true;
	}

	public void activateObject(Object obj) throws Exception {
        debug("activateObject", obj);
        sleep(10);
	}

	public void passivateObject(Object obj) throws Exception {
        debug("passivateObject", obj);
        sleep(10);
	}
    
    private void debug(String method, Object obj) {
        if (debug) {
            String thread = "thread" + Thread.currentThread().getName();
            System.out.println(thread + ": " + method + " " + obj);
        }
    }
    
    private void sleep(long millis) {
        try {
            Thread.sleep(millis);
        }
        catch (InterruptedException e) {
        }
    }

    public boolean isDebug() {
        return debug;
    }

    public void setDebug(boolean b) {
        debug = b;
    }
}