1 /*
2 * Copyright (c) 2002-2014, Mairie de Paris
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice
10 * and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice
13 * and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 * License 1.0
33 */
34 package fr.paris.lutece.portal.service.scheduler;
35
36 import fr.paris.lutece.portal.service.util.AppLogService;
37
38 import org.quartz.CronTrigger;
39 import org.quartz.JobDetail;
40 import org.quartz.Scheduler;
41 import org.quartz.SchedulerException;
42 import org.quartz.SchedulerFactory;
43
44 import org.quartz.impl.StdSchedulerFactory;
45
46 import java.util.Date;
47
48
49 /**
50 * JobSchedulerService
51 */
52 public final class JobSchedulerService
53 {
54 private static volatile JobSchedulerService _singleton;
55 private static Scheduler _scheduler;
56
57 /** Creates a new instance of JobSchedulerService */
58 private JobSchedulerService( )
59 {
60 }
61
62 /**
63 * Gets the unique instance of the service
64 * @return The service's instance
65 */
66 public static JobSchedulerService getInstance( )
67 {
68 if ( _singleton == null )
69 {
70 synchronized ( JobSchedulerService.class )
71 {
72 JobSchedulerService service = new JobSchedulerService( );
73 service.init( );
74 _singleton = service;
75 }
76 }
77
78 return _singleton;
79 }
80
81 /**
82 * Initialize the service.
83 */
84 private void init( )
85 {
86 SchedulerFactory factory = new StdSchedulerFactory( );
87
88 try
89 {
90 _scheduler = factory.getScheduler( );
91 _scheduler.start( );
92 AppLogService.info( "Lutece job scheduler started." );
93 }
94 catch ( SchedulerException e )
95 {
96 AppLogService.error( "Error starting the Lutece job scheduler ", e );
97 }
98 }
99
100 /**
101 * Schedule a job according cron information
102 * @param job The Job to schedule
103 * @param trigger The Cron trigger
104 * @return Date
105 */
106 public Date scheduleJob( JobDetail job, CronTrigger trigger )
107 {
108 Date date = null;
109
110 if ( _scheduler != null )
111 {
112 try
113 {
114 date = _scheduler.scheduleJob( job, trigger );
115 AppLogService.info( "New job scheduled : " + job.getName( ) );
116 }
117 catch ( SchedulerException e )
118 {
119 AppLogService.error( "Error scheduling job " + job.getName( ), e );
120 }
121 }
122
123 return date;
124 }
125
126 /**
127 * Shutdown the service (Called by the core while the webapp is destroyed)
128 */
129 public static void shutdown( )
130 {
131 if ( _scheduler != null )
132 {
133 try
134 {
135 _scheduler.shutdown( );
136 AppLogService.info( "Lutece job scheduler stopped." );
137 }
138 catch ( SchedulerException e )
139 {
140 AppLogService.error( "Error shuting down the Lutece job scheduler ", e );
141 }
142 }
143 }
144 }