SchedulerMain


1   package org.jbpm.scheduler.impl;
2   
3   import java.text.DateFormat  ;
4   import java.text.SimpleDateFormat  ;
5   import java.util.Date  ;
6   
7   import org.apache.commons.logging.Log;
8   import org.apache.commons.logging.LogFactory;
9   import org.jbpm.scheduler.exe.Timer;
10  
11  public class SchedulerMain {
12  
13    static DateFormat   dateFormat = null;
14  
15    public static void main(String  [] args) {
16      // java SchedulerMain <interval> <historyMaxSize> <dateFormat>
17      
18      // create a new scheduler
19      Scheduler scheduler = new Scheduler();
20      
21      // initialize it with the command line parameters 
22      int interval = Integer.parseInt(getParameter(args, 0, "5000"));
23      scheduler.setInterval(interval);
24      int historyMaxSize = Integer.parseInt(getParameter(args, 1, "50"));
25      scheduler.setHistoryMaxSize(historyMaxSize);
26      dateFormat = new SimpleDateFormat  (getParameter(args, 2, "dd/MM/yyyy HH:mm:ss"));
27      
28      // register the console listener
29      scheduler.getSchedulerThread().addListener(new LogListener());
30      
31      // start the scheduler
32      scheduler.start();
33    }
34  
35    private static final String   NEWLINE = System.getProperty("line.separator");
36    private static class LogListener implements SchedulerListener {
37      public void timerExecuted(Date   date, Timer timer) {
38        StringBuffer   buffer = new StringBuffer  ();
39        buffer.append(dateFormat.format(date));
40        buffer.append(" | ");
41        buffer.append(timer.toString());
42        buffer.append(" | ");
43        if (timer.getException()==null) {
44          buffer.append("OK |");
45        } else {
46          buffer.append("exception...");
47          buffer.append(NEWLINE);
48          buffer.append(timer.getException());
49          buffer.append(NEWLINE);
50        }
51        log.info(buffer.toString());
52      }
53    }
54  
55    private static String   getParameter(String  [] args, int index, String   defaultValue) {
56      String   value = null;
57      if ( (args!=null)
58           && (args.length>index)
59         ) {
60        value = args[index];
61      } else {
62        value = defaultValue;
63      }
64      return value;
65    }
66  
67    private static final Log log = LogFactory.getLog(SchedulerMain.class);
68  }
69
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