/*
   * (non-Javadoc)
   *
   * @see org.apache.oodt.cas.workflow.engine.WorkflowEngine#startWorkflow(org.apache.oodt.cas.workflow.structs.Workflow,
   *      org.apache.oodt.cas.metadata.Metadata)
   */
  public synchronized WorkflowInstance startWorkflow(Workflow workflow, Metadata metadata)
      throws EngineException {
    // to start the workflow, we create a default workflow instance
    // populate it
    // persist it
    // add it to the worker map
    // start it

    WorkflowInstance wInst = new WorkflowInstance();
    wInst.setWorkflow(workflow);
    wInst.setCurrentTaskId(((WorkflowTask) workflow.getTasks().get(0)).getTaskId());
    wInst.setSharedContext(metadata);
    wInst.setStatus(CREATED);
    persistWorkflowInstance(wInst);

    IterativeWorkflowProcessorThread worker =
        new IterativeWorkflowProcessorThread(wInst, instRep, this.wmgrUrl);
    worker.setRClient(rClient);
    workerMap.put(wInst.getId(), worker);

    wInst.setStatus(QUEUED);
    persistWorkflowInstance(wInst);

    try {
      pool.execute(worker);
    } catch (InterruptedException e) {
      throw new EngineException(e);
    }

    return wInst;
  }
  @BeforeClass
  public static void setup() throws MalformedURLException {

    testWrkInst = new WorkflowInstance();
    testWrkFlw = new Workflow();
    testTask = new WorkflowTask();
    testCond = new WorkflowCondition();
    Metadata sharedContext = new Metadata();

    // to check if the path already exists and to delete if it does exist
    if (new File(catalogPath).exists()) {
      try {
        FileUtils.deleteDirectory(new File(catalogPath));
      } catch (IOException e) {
        fail(e.getMessage());
      }
    }
    repo = new LuceneWorkflowInstanceRepository(catalogPath, stdPgSz);

    testWrkFlw.setName("test.getMetadataWorkflow");
    testWrkFlw.setId("test.id");
    List tasks = new Vector();
    List conds = new Vector();

    testCond.setConditionId("test.cond.id");
    testCond.setConditionInstanceClassName("test.class");
    testCond.setConditionName("test.cond.name");
    testCond.setOrder(1);
    conds.add(testCond);

    testTask.setTaskConfig(new WorkflowTaskConfiguration());
    testTask.setTaskId("test.task.id");
    testTask.setConditions(conds);
    testTask.setOrder(1);
    testTask.setTaskInstanceClassName("test.class");
    testTask.setTaskName("test.task.name");
    tasks.add(testTask);
    testWrkFlw.setTasks(tasks);

    testWrkInst.setCurrentTaskId("test.task");
    testWrkInst.setStatus("STARTED");
    testWrkInst.setWorkflow(testWrkFlw);

    sharedContext.addMetadata("key1", "val1");
    sharedContext.addMetadata("key1", "val2");
    sharedContext.addMetadata("key1", "val3");
    sharedContext.addMetadata("key2", "val4");
    sharedContext.addMetadata("key2", "val5");
    testWrkInst.setSharedContext(sharedContext);
    startXmlRpcWorkflowManager();
    startWorkflow();
    fmc = new XmlRpcWorkflowManagerClient(new URL("http://localhost:" + WM_PORT));
  }