Examples of org.openbp.server.context.TokenContext

org.openbp.server.context.TokenContext
The context for process execution. The token context contains all information that reflects the current state of the process. This includes process execution data, the current global and socket parameter values of the process, i/o etc. The TokenContext interface now extends the RuntimeAttribute interface. This provides the ability to store arbitrary objects in a map. However, the map won't be serialized to persistent storage. When a context is executed by the engine, the thread executing the context is saved as runtime attribute under the key {@link TokenContext#RUNTIME_ATTRIBUTE_THREAD}. This feature may be used to terminate hanging threads by force in emergency situations. @author Heiko Erhardt

   */
  @Transactional(propagation = Propagation.REQUIRED)
  public String getProcessOutput(Object tokenId)
  {
    // Re-load the token from the database
    TokenContext token = getProcessFacade().getTokenById(tokenId);


    Map<String, Object> outputParam = new HashMap<String, Object>(); 
    getProcessFacade().retrieveOutputParameters(token, outputParam);


    // Since we cleared the 'delete process after completion' flag, we need to delete the process manually.

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   */
  public boolean execute(HandlerContext hc)
    throws Exception
  {
    // {{*Handler implementation*
    TokenContext context = hc.getTokenContext();


    String signalId = (String) hc.getParam(PARAM_SIGNALID);
    Object signalValue = hc.getParam(PARAM_SIGNALVALUE);


    LogUtil.debug(getClass(), "Context $0 setting signal $1 to $2...", context.getId(), signalId, signalValue);


    TestCaseSyncMgr.getInstance().setSignal(signalId, signalValue);


    return true;
    // }}*Handler implementation*

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    startValue = 99;
    inputParams.put("NumValue", new Integer(startValue));


    // Create the process context and start the process
    TokenContext token = createToken();
    token.createProcessVariable("externalValue", true);
    token.setProcessVariableValue("externalValue", new Integer(199));
    getProcessFacade().startToken(token, STARTREF, inputParams);


    Object tokenId = token.getId();


    // Note: This should be done by some worker thread; for the test case, we do it right here.
    getProcessFacade().executePendingContextsInThisThread();


    commit();

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  protected void doWorkflowTask(final Object tokenId)
  {
    begin();


    TokenContext token = getProcessFacade().getTokenById(tokenId);


    // Check the process variables of the token context
    Object p = token.getProcessVariableValue("globalObject");
    assertTrue(p instanceof PersistedComplexParam);
    PersistedComplexParam rcp = (PersistedComplexParam) p;
    int nRet = rcp.getResult();
    assertEquals(startValue + 1, nRet);


    // Get the workflow task that is associated with our process.
    WorkflowTaskCriteria criteria = new WorkflowTaskCriteria();
    criteria.setTokenContext(token);
    Iterator it = getProcessFacade().getworkflowTasks(criteria);
    assertTrue(it.hasNext());
    WorkflowTask task = (WorkflowTask) it.next();


    TokenContext taskToken = task.getTokenContext();


    // Check the process variables of the token context
    Object p2 = taskToken.getProcessVariableValue("globalObject");
    assertTrue(p2 instanceof PersistedComplexParam);
    PersistedComplexParam rcp2 = (PersistedComplexParam) p2;
    int nRet2 = rcp2.getResult();
    assertEquals(startValue + 1, nRet2);

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  protected void doFinish(final Object tokenId)
  {
    begin();


    TokenContext token = getProcessFacade().getTokenById(tokenId);


    // Note: This should be done by some worker thread; for the test case, we do it right here.
    getProcessFacade().executePendingContextsInThisThread();


    // Token should be at the end of the workflow

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    getProcessFacade().rollback();
  }


  public TokenContext createToken()
  {
    TokenContext token = getProcessFacade().createToken();
    token.setDebuggerId("Deb1");
    return token;
  }

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  {
    begin();
    int n = 0;
    for (Iterator it = CollectionUtil.iterator(getProcessFacade().getTokens(null, 0)); it.hasNext();)
    {
      TokenContext token = (TokenContext) it.next();
      if (token.getCurrentSocket() == null)
      {
        errOut("Test context check " + stepName + ": Socket of context " + token + " is null.");
      }
      ++n;
    }

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  public TokenContext startSimpleSignalWaitProcess(String signalId, int priority)
  {
    HashMap initialParams = new HashMap();
    initialParams.put("SignalId", signalId);


    TokenContext tc = createToken();
    tc.setPriority(priority);
    getProcessFacade().startToken(tc, SIMPLE_SIGNAL_WAIT_PROCESS_STARTREF, initialParams);
    return tc;
  }

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  {
    HashMap initialParams = new HashMap();
    initialParams.put("SignalId", signalId);
    initialParams.put("SignalValue", signalValue);


    TokenContext tc = createToken();
    tc.setPriority(priority);
    getProcessFacade().startToken(tc, SIMPLE_SIGNAL_SET_PROCESS_STARTREF, initialParams);
    return tc;
  }

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   */
  public boolean execute(HandlerContext hc)
    throws Exception
  {
    // {{*Handler implementation*
    TokenContext context = hc.getTokenContext();
    String signalId = (String) hc.getParam(PARAM_SIGNALID);


    LogUtil.debug(getClass(), "Context $0 waiting for signal $1...", context.getId(), signalId);


    Object signalValue = TestCaseSyncMgr.getInstance().receiveSignal(null, signalId, 10);


    LogUtil.debug(getClass(), "Context $0 received signal $1, value $2.", context.getId(), signalId, signalValue);


    hc.setResult(PARAM_SIGNALVALUE, signalValue);


    return true;
    // }}*Handler implementation*

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