API Code to Update Scheduled Job Parameter & Schedule Job Using Cron trigger

1. package com.oimacademy.scheduler;
2. import java.io.Serializable;
3. import java.util.HashMap;
4. import java.util.Iterator;
5. import java.util.Date;
6. import com.oimacademy.connection.Platform;
7. import oracle.iam.scheduler.api.SchedulerService;
8. import oracle.iam.scheduler.vo.CronTrigger;
9. import oracle.iam.scheduler.vo.JobDetails;
10. import oracle.iam.scheduler.vo.JobParameter;
11. import oracle.iam.scheduler.vo.Trigger;
12. public class UpdateScheduledJobParameter {
13.  public static void main(String[] args){
14.   new UpdateScheduledJobParameter().updateScheduledJobParameter("Retry Task1", "Recurring Interval", "MONTHLY");  
15.  }
16.  public void updateScheduledJobParameter(String jobName, String paramName, String paramValue) {
17.      final String logp = " :: updateScheduledJobParameter - ";
18.      System.out.println(logp + "START");
19.      SchedulerService schedulerService = null;
20.      try{
21.          //get scheduler service
22.          schedulerService = Platform.getService(SchedulerService.class); 
23.          JobDetails jobDetail = schedulerService.getJobDetail(jobName);         
24.          HashMap jobAttributes = jobDetail.getAttributes();
25.          System.out.println("JobDetails Object Getting Params ");
26.    HashMap<String, JobParameter> jobParameters = jobDetail.getParams();   
27.    System.out.println( "  name               : " + jobDetail.getName());
28.    System.out.println( "  class name         : " + jobDetail.getTaskClassName());
29.    System.out.println( "  task key           : " + jobDetail.getTaskKey());
30.    System.out.println( "  task name          : " + jobDetail.getTaskName());
31.    System.out.println( "  method             : " + jobDetail.getMethod());
32.    System.out.println( "  job schedule type  : " + jobDetail.getJobScheduleType());
33.    System.out.println( "  job listener       : " + jobDetail.getJobListener());
34.    System.out.println( "  cron schedule type : " + jobDetail.getCronScheduleType());
35.    System.out.println( "  retry count        : " + jobDetail.getRetrycount());
36.    if(null!=jobParameters && jobParameters.size()>0){
37.     Iterator itrJobParams = jobParameters.keySet().iterator();
38.     while (itrJobParams.hasNext()) {
39.      String hashKey=itrJobParams.next().toString();
40.      Object obj = jobParameters.get(hashKey);
41.      JobParameter jp = null;
42.      if (null != obj && obj instanceof JobParameter) {
43.       jp = (JobParameter) obj;
44.       System.out.println( "      data type     : " + jp.getDataType());
45.       System.out.println( "      name          : " + jp.getName());
46.       System.out.println( "      parameter key : " + jp.getParameterKey());
47.       Serializable val = jp.getValue();
48.       System.out.println( "      value         : " + val);       
49.       System.out.println();
50.      }
51.     }
52.    }else{
53.     System.out.println("  jobParameters Null in the task Name -> "+jobDetail.getTaskName());
54.    }   
55.          JobParameter jbParam = new JobParameter();
56.          jbParam.setName(paramName);
57.          jbParam.setValue(paramValue);
58.          jobAttributes.put(paramName, jbParam);
59.          jobDetail.setAttributes(jobAttributes);
60.          System.out.println(logp + "Updated job attributes - " + jobAttributes);
61.          //    
62.         Trigger[] triggers= schedulerService.getTriggersOfJob("Retry Task1");
63.         for(Trigger trigg : triggers ){
64.          schedulerService.deleteTrigger(trigg.getName());         
65.         }
66.          JobDetails jb = new JobDetails();
67.    jb.setName(jobDetail.getName());
68.    jb.setJobScheduleType(jobDetail.getJobScheduleType());
69.    jb.setCronScheduleType(jobDetail.getCronScheduleType());
70.    jb.setRetrycount(jobDetail.getRetrycount());   
71.    schedulerService.updateJob(jobDetail);   
72.    schedulerService.scheduleJob(jobDetail.getName(), new CronTrigger(jobDetail.getName(),new Date(),null, "8 46 15 ? * 3,4,5,6,7,1 *"));      
73.          System.out.println(logp + "Job updated successfully");
74.      }catch(Exception e){
75.       System.out.println(logp + "Exception occured while updating scheduled job parameters - " + e);
76.      }     
77.      System.out.println(logp + "END");
78.  } 
79. }