com.globalsight.cxe.adapter.teamsite.autoimport.AutomaticImportDaemon.java Source code

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Here is the source code for com.globalsight.cxe.adapter.teamsite.autoimport.AutomaticImportDaemon.java

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/**
 *  Copyright 2009 Welocalize, Inc. 
 *  
 *  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.globalsight.cxe.adapter.teamsite.autoimport;

import java.io.IOException;
import java.net.ServerSocket;

import org.apache.commons.daemon.Daemon;
import org.apache.commons.daemon.DaemonContext;
import org.apache.commons.daemon.DaemonController;
import org.apache.log4j.Logger;

public class AutomaticImportDaemon implements Daemon, Runnable {
    private static final Logger s_logger = Logger.getLogger(AutomaticImportDaemon.class);
    private ServerSocket server = null;
    private Thread thread = null;
    private DaemonController controller = null;
    private boolean stopping = false;
    private String directory = null;

    public AutomaticImportDaemon() {
        super();
        s_logger.debug("AutomaticImportDaemon: instance " + this.hashCode() + " created");
    }

    protected void finalize() {
        s_logger.debug("AutomaticImportDaemon: instance " + this.hashCode() + " garbage collected");
    }

    /**
     * init and destroy were added in jakarta-tomcat-daemon.
     */
    public void init(DaemonContext context) throws Exception {
        s_logger.debug("AutomaticImportDaemon: instance " + this.hashCode() + " init");
        /* Set up this simple daemon */
        this.controller = context.getController();
        this.thread = new Thread(this);
    }

    public void start() {
        /* Dump a message */
        s_logger.debug("AutomaticImportDaemon: starting");

        /* Start */
        this.thread.start();
    }

    public void stop() throws IOException, InterruptedException {
        /* Shutdown the AutomaticImportMonitor */
        boolean waitForThreadDeath = false;
        AutomaticImportMonitor.getInstance().shutdown(waitForThreadDeath);
        /* Dump a message */
        s_logger.debug("AutomaticImportDaemon: stopping");

        /* Close the ServerSocket. This will make our thread to terminate */
        this.stopping = true;
        this.server.close();

        /* Wait for the main thread to exit and dump a message */
        this.thread.join(5000);
        s_logger.debug("AutomaticImportDaemon: stopped");
    }

    public void destroy() {
        s_logger.debug("AutomaticImportDaemon: instance " + this.hashCode() + " destroy");
    }

    public void run() {
        try {
            int number = 0;
            s_logger.debug("AutomaticImportDaemon: started acceptor loop");
            AutomaticImportMonitor.initialize();
            s_logger.debug("AutomaticImportDaemon: Initialized monitor");
            AutomaticImportMonitor aimonitor = AutomaticImportMonitor.getInstance();
            aimonitor.startup();
            s_logger.debug("AutomaticImportDaemon: monitor started");
        } catch (IOException e) {
            /*
             * Don't dump any error message if we are stopping. A IOException is
             * generated when the ServerSocket is closed in stop()
             */
            if (!this.stopping)
                e.printStackTrace(System.out);
        } catch (Exception ex) {
            if (!this.stopping)
                ex.printStackTrace(System.out);
        }
    }
}