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Running a Task from a Rule or Workflow

This document (7011240) is provided subject to the disclaimer at the end of this document.

Resolution

A Task can be initiated from code in any rule (including workflow rules) by instantiating a TaskManager and calling one of its methods for running a task. Methods to run a task include:

  • RunSync():Run a task synchronously, bypassing the Quartz scheduler and returning the result to the same thread.
    • TaskResult runSync (String TaskDefinitionName, Map<String,Object> args)
    • TaskResult runSync(TaskDefinition def, Map<String,Object> args)
    • TaskResult runSync(TaskSchedule schedule, Map<String,Object> schedArgs)
  • RunNow():Force immediate execution of a previously scheduled task. The task remains scheduled.
    • Void runNow(TaskSchedule sched)
  • Run():Run a task immediately (creates a TaskSchedule object that is deleted automatically when execution completes).
    • void run(String TaskDefinitionName, Attributes<String,Object> args)
    • TaskSchedule run(TaskDefinition def, Map<String,Object> args)
  • RunWithResult:Launch task immediately, pre-creating a TaskResult; used if need to store the result ID somewhere (typically in a WorkItem) to facilitate monitoring of the task execution.
    • TaskResult runWithResult(TaskDefinition def, Map<String,Object> args)

Examples:

  1. Using TaskResult runSync (String TaskDefinitionName, Map<String,Object> args)
                        try {
                        TaskManager tm = new TaskManager(context); 
                        TaskResult result = tm.runSync("Identity Refresh", new HashMap());
                        } catch (Exception e) {
                        log.error("Exception processing request for Identity Refresh run from rule");
                        throw new GeneralException(e);
                        }
  2. Using Void runNow(TaskSchedule sched)
                        TaskDefinition task = context.getObjectByName(TaskDefinition.class,"Identity Refresh");
                        if (null != task) {
                        try {
                        // Task Schedule Setup
                        TaskSchedule taskSchedule = new TaskSchedule();
                        taskSchedule.setName("Schedule for" + task.getName());
                        taskSchedule.setDeleteOnFinish(true);
                        taskSchedule.setDescription("Job Scheduled from Rule");  taskSchedule.setTaskDefinition(task);
                        taskSchedule.setLauncher("spadmin");
                        Date now = new Date();
                        taskSchedule.setNextExecution(now);
                        TaskManager tm = new TaskManager(context);
                        tm.runNow(taskSchedule);
                        } catch (Exception e) {
                        log.error("Exception processing request for "+task.getName());
                        throw new GeneralException(e);
                        }
                        // Include this if you want to wait for the results from the task 
                        TaskResult tr = tm.awaitTask(taskSchedule, 1800);
  3. Using TaskSchedule run(TaskDefinition def, Map<String,Object> args)
                        TaskDefinition task = context.getObjectByName(TaskDefinition.class,"Identity Refresh");
                        if (null != task) {
                        try {
                        Date now = new Date();
                        TaskManager tm = new TaskManager(context);
                        tm.run(task,null);
                        } catch (Exception e) {
                        log.error("Exception processing request for "+task.getName());
                        throw new GeneralException(e);
                        }
                        }
  4. Using void run(String TaskDefinitionName, Attributes <String, Object> args)
                        try { 
                        TaskManager tm = new TaskManager(context);
                        tm.run ("Identity Refresh", new Attributes()); 
                        } catch (Exception e) { 
                        log.error("Exception processing request for Identity Refresh run from rule"); 
                        throw new GeneralException(e);
                        }

Disclaimer

This Support Knowledgebase provides a valuable tool for NetIQ/Novell/SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7011240
  • Creation Date:30-JUL-12
  • Modified Date:30-JUL-12
    • NetIQAccess Governance

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