Package org.apache.geronimo.pool

Source Code of org.apache.geronimo.pool.ClockPool

/**
*
* Copyright 2003-2004 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.geronimo.pool;

import EDU.oswego.cs.dl.util.concurrent.ClockDaemon;
import EDU.oswego.cs.dl.util.concurrent.ThreadFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.geronimo.gbean.GBeanInfo;
import org.apache.geronimo.gbean.GBeanInfoBuilder;
import org.apache.geronimo.gbean.GBeanLifecycle;

/**
* @version $Rev: 151106 $ $Date: 2005-02-02 19:49:54 -0700 (Wed, 02 Feb 2005) $
*/
public class ClockPool implements GBeanLifecycle {

    static private final Log log = LogFactory.getLog(ClockPool.class);

    private String poolName;

    /**
     * Manages the thread that can used to schedule short
     * running tasks in the future.
     */
    protected ClockDaemon clockDaemon;

    public String getPoolName() {
        return poolName;
    }

    public void setPoolName(String poolName) {
        this.poolName = poolName;
    }

    public ClockDaemon getClockDaemon() {
        return clockDaemon;
    }

    public void doStart() throws Exception {
        clockDaemon = new ClockDaemon();
        clockDaemon.setThreadFactory(new ThreadFactory() {
            public Thread newThread(Runnable r) {
                Thread t = new Thread(r, poolName + " ");
                t.setDaemon(true);
                return t;
            }
        });
        log.info("Clock pool " + poolName + " started");
    }

    public void doStop() throws Exception {
        clockDaemon.shutDown();
        log.info("Clock pool " + poolName + " stopped");
    }

    public void doFail() {
    }

    private static final GBeanInfo GBEAN_INFO;

    static {
        GBeanInfoBuilder infoFactory = new GBeanInfoBuilder(ClockPool.class);

        infoFactory.addAttribute("poolName", String.class, true);

        infoFactory.addOperation("getClockDaemon");

        GBEAN_INFO = infoFactory.getBeanInfo();
    }

    public static GBeanInfo getGBeanInfo() {
        return GBEAN_INFO;
    }
}
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