com.stimulus.archiva.incoming.IAPService.java Source code

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Here is the source code for com.stimulus.archiva.incoming.IAPService.java

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/* Copyright (C) 2005-2007 Jamie Angus Band 
 * MailArchiva Open Source Edition Copyright (c) 2005-2007 Jamie Angus Band
 * This program is free software; you can redistribute it and/or modify it under the terms of
 * the GNU General Public License as published by the Free Software Foundation; either version
 * 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along with this program;
 * if not, see http://www.gnu.org/licenses or write to the Free Software Foundation,Inc., 51
 * Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 */

package com.stimulus.archiva.incoming;

import org.apache.commons.logging.*;
import java.util.*;
import com.stimulus.archiva.domain.*;

import java.util.concurrent.*;

public class IAPService implements Service {

    private static Log logger = LogFactory.getLog(IAPService.class);
    protected boolean shutdown = false;
    protected String serverAddress;
    protected int port;
    protected IAPRunnable iapworker;
    protected ExecutorService executor;
    protected Status status = Status.STOPPED;
    protected ServiceDelegate serviceDelegate;

    public IAPService() {
        serviceDelegate = new ServiceDelegate("imap/pop", this, logger);
    }

    public String getServiceName() {
        return serviceDelegate.getServiceName();
    }

    public boolean isAlive() {
        return serviceDelegate.isAlive(!executor.isShutdown());
    }

    public void startup() {
        MailboxConnection connection;
        Config config = Config.getConfig();
        connection = config.getMailboxConnections().getConnection();
        executor = Executors.newCachedThreadPool();
        iapworker = new IAPRunnable("mailbox worker", null, connection,
                config.getMailboxConnections().getPollingIntervalSecs(),
                Config.getConfig().getFetchMessageCallback());
        logger.debug("startup {name='" + iapworker.getName() + "'}");
        if (connection.getEnabled()) {
            executor.execute(iapworker);
        }
        serviceDelegate.startup();
    }

    public void prepareShutdown() {
        if (isAlive()) {
            serviceDelegate.prepareShutdown();
            iapworker.prepareShutdown();
        }
    }

    public void shutdown() {
        if (isAlive()) {
            if (executor != null)
                executor.shutdown();
            logger.debug("shutdown iap worker {name='" + iapworker.getName() + "'}");
            iapworker.interrupt();
            iapworker.shutdown();
            serviceDelegate.shutdown();
        }
    }

    public void reloadConfig() {
        MailboxConnection connection;
        Config config = Config.getConfig();
        connection = config.getMailboxConnections().getConnection();
        logger.debug("checking mailbox connections");
        if (iapworker.getMailboxConnection().equals(connection)) {
            logger.debug("found equivalent mailbox connection {" + iapworker.getMailboxConnection() + "}");
        } else {
            logger.warn("something has changed in the mailbox connection configuration. will restart.");
            prepareShutdown();
            shutdown();
            startup();
            serviceDelegate.reloadConfig();
        }
    }

    public Status getStatus() {
        return serviceDelegate.getStatus();
    }

    public void testConnection(MailboxConnection connection, IAPRunnable.IAPTestCallback testCallback) {
        Config config = Config.getConfig();
        ExecutorService executor = Executors.newSingleThreadExecutor();
        IAPRunnable worker = new IAPRunnable("iap test", testCallback, connection,
                config.getMailboxConnections().getPollingIntervalSecs(), null);
        executor.execute(worker);
    }

}