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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
51
52 public final class JobSchedulerService
53 {
54 private static volatile JobSchedulerService _singleton;
55 private static Scheduler _scheduler;
56
57
58 private JobSchedulerService( )
59 {
60 }
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62
63
64
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
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
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103
104
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
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 }