001    /**
002     * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
003     *
004     * The contents of this file are subject to the terms of the Liferay Enterprise
005     * Subscription License ("License"). You may not use this file except in
006     * compliance with the License. You can obtain a copy of the License by
007     * contacting Liferay, Inc. See the License for the specific language governing
008     * permissions and limitations under the License, including but not limited to
009     * distribution rights of the Software.
010     *
011     *
012     *
013     */
014    
015    package com.liferay.portal.scheduler;
016    
017    import com.liferay.portal.kernel.messaging.DestinationNames;
018    import com.liferay.portal.kernel.messaging.Message;
019    import com.liferay.portal.kernel.messaging.MessageBusUtil;
020    import com.liferay.portal.kernel.scheduler.CronTrigger;
021    import com.liferay.portal.kernel.scheduler.SchedulerEngine;
022    import com.liferay.portal.kernel.scheduler.SchedulerException;
023    import com.liferay.portal.kernel.scheduler.Trigger;
024    import com.liferay.portal.kernel.scheduler.messaging.SchedulerRequest;
025    
026    import java.util.List;
027    
028    /**
029     * @author Bruno Farache
030     * @author Shuyang Zhou
031     */
032    public class SchedulerEngineProxy implements SchedulerEngine {
033    
034            public List<SchedulerRequest> getScheduledJobs(String groupName)
035                    throws SchedulerException {
036    
037                    try {
038                            SchedulerRequest schedulerRequest =
039                                    SchedulerRequest.createRetrieveRequest(
040                                            new CronTrigger(groupName, groupName, null));
041    
042                            List<SchedulerRequest> schedulerRequests =
043                                    (List<SchedulerRequest>)MessageBusUtil.sendSynchronousMessage(
044                                            DestinationNames.SCHEDULER_ENGINE, schedulerRequest,
045                                            DestinationNames.SCHEDULER_ENGINE_RESPONSE);
046    
047                            return schedulerRequests;
048                    }
049                    catch (Exception e) {
050                            throw new SchedulerException(e);
051                    }
052            }
053    
054            public void schedule(
055                    Trigger trigger, String description, String destinationName,
056                    Message message) {
057    
058                    SchedulerRequest schedulerRequest =
059                            SchedulerRequest.createRegisterRequest(
060                                    trigger, description, destinationName, message);
061    
062                    MessageBusUtil.sendMessage(
063                            DestinationNames.SCHEDULER_ENGINE, schedulerRequest);
064            }
065    
066            public void shutdown() {
067                    MessageBusUtil.sendMessage(
068                            DestinationNames.SCHEDULER_ENGINE,
069                            SchedulerRequest.createShutdownRequest());
070            }
071    
072            public void start() {
073                    MessageBusUtil.sendMessage(
074                            DestinationNames.SCHEDULER_ENGINE,
075                            SchedulerRequest.createStartupRequest());
076            }
077    
078            public void unschedule(Trigger trigger) {
079                    SchedulerRequest schedulerRequest =
080                            SchedulerRequest.createUnregisterRequest(trigger);
081    
082                    MessageBusUtil.sendMessage(
083                            DestinationNames.SCHEDULER_ENGINE, schedulerRequest);
084            }
085    
086    }