@Transactional(readOnly = true)
@Override
public List<HistoryTask> getHistoryTasks(String assignee, Date startDate, Date endDate) {
return convertHistoryTasks(
taskRepo.findByTaskDataActualOwnerAndTaskDataCompletedOnBetween(
new User(assignee), startDate, endDate));
}
/**
* Publishes a message to qpid that describes what action a user has just performed on a task.
* These actions may be either TaskTaken or TaskCompleted. This calls checkInitialized to see if
* there is a valid connection to qpid.
*
* @param task the task that has been acted upon
* @param exchangeName the exchange name for messaging
* @param eventName the event that correlates with the action
* @param taskId the id of the task that was acted upon
*/
public void amqpTaskPublish(Task task, String exchangeName, String eventName, String taskId) {
String info = "";
if (checkInitialized()) {
if (eventName.equals("TaskTaken")) {
try {
info =
"eventType="
+ eventName
+ ";"
+ "processID="
+ task.getProcessInstanceId()
+ ";"
+ "taskID="
+ task.getId()
+ ";"
+ "assignee="
+ task.getAssignee()
+ ";";
} catch (Exception e) {
log.debug(e.getMessage());
}
} else if (eventName.equals("TaskCompleted")) {
try {
org.jbpm.task.Task ht = taskRepo.findById(Long.decode(taskId));
String processName = ht.getTaskData().getProcessId();
String processId = Long.toString(ht.getTaskData().getProcessInstanceId());
String assignee = ht.getTaskData().getActualOwner().getId();
info =
"eventType="
+ eventName
+ ";"
+ "processID="
+ processName
+ "."
+ processId
+ ";"
+ "taskID="
+ taskId
+ ";"
+ "assignee="
+ assignee
+ ";";
} catch (Exception e) {
log.debug(e.getMessage());
}
}
sendMessage(info, exchangeName);
}
}
@Transactional(readOnly = true)
@Override
public List<HistoryActivity> getHistoryActivities(Long processInstanceId) {
return convertHistoryActivities(taskRepo.findByTaskDataProcessInstanceId(processInstanceId));
}
@Override
public void completeTask(
Long id, String assignee, String outcome, Map<String, Object> variables) {
// should be handled upstream in controller
assert (assignee != null);
log.debug(assignee + " starting task with ID: " + id);
BlockingGetTaskResponseHandler getTaskResponseHandler = new BlockingGetTaskResponseHandler();
taskClient.getTask(id, getTaskResponseHandler);
org.jbpm.task.Task task = getTaskResponseHandler.getTask();
// convert to COW task so we can verify the decision
Task cowTask = converter.convert(task, Task.class);
if (cowTask.getOutcomes() != null && cowTask.getOutcomes().size() > 0) {
// This is a decision task!
if (outcome == null) {
throw new RuntimeException("ERROR: no decision provided for a Decision task");
}
if (!cowTask.getOutcomes().contains(outcome)) {
throw new RuntimeException("ERROR: decision value " + outcome + " is not a valid choice.");
}
}
BlockingGetContentResponseHandler getContentResponseHandler =
new BlockingGetContentResponseHandler();
taskClient.getContent(task.getTaskData().getDocumentContentId(), getContentResponseHandler);
Content inputContent = getContentResponseHandler.getContent();
Map<String, Object> inputMap =
(Map<String, Object>) ContentMarshallerHelper.unmarshall(inputContent.getContent(), null);
for (Map.Entry<String, Object> entry : inputMap.entrySet()) {
log.debug(entry.getKey() + " = " + entry.getValue());
}
Map<String, Object> outputMap = new HashMap<String, Object>();
// put Outcome into the outputMap
// The InputMap contains a variable that tells us what key to use
if (inputMap.get(DECISION_VAR_NAME) != null) {
log.debug("Decision outcome: " + outcome);
outputMap.put((String) inputMap.get(DECISION_VAR_NAME), outcome);
}
Map<String, Object> outputVarsMap = new HashMap<String, Object>();
// NOTE: obtaining the map from the Task results in a copy of the map as of the
// time when the task became available. It's possible that in the meantime (e.g. due to
// a parallel task) the map has been altered.
// Map<String, Object> inputVarsMap = (Map<String, Object>)
// inputMap.get(TASK_INPUT_VARIABLES_NAME);
// So, instead, we get the current values directly from the process instance, rather than the
// values copied into the task
Long processInstanceId = task.getTaskData().getProcessInstanceId();
Map<String, Object> inputVarsMap = null;
try {
WorkflowProcessInstance pi =
(WorkflowProcessInstance) kSession.getProcessInstance(processInstanceId);
inputVarsMap = (Map<String, Object>) pi.getVariable(VARIABLES_PROPERTY);
} catch (Exception e) {
// not an active process? look in the dB.
log.error(e);
List<VariableInstanceLog> vars =
JPAProcessInstanceDbLog.findVariableInstances(processInstanceId, VARIABLES_PROPERTY);
log.info("variable count: " + vars.size());
if (vars.size() > 0) {
// why more than one???
inputVarsMap = (Map<String, Object>) vars.get(0);
}
}
if (inputVarsMap != null) {
// initialize the output map with the input values
log.debug("Copying input map: " + inputVarsMap);
outputVarsMap.putAll(inputVarsMap);
}
if (variables != null && variables.size() > 0) {
log.debug("Adding variables: " + variables);
// update with any new or modified values
outputVarsMap.putAll(variables);
}
if (outputVarsMap.size() > 0) {
log.debug("Adding map to output");
outputMap.put(TASK_OUTPUT_VARIABLES_NAME, outputVarsMap);
}
// start the task
if (task.getTaskData().getStatus().equals(org.jbpm.task.Status.Reserved)) {
BlockingTaskOperationResponseHandler operationResponseHandler =
new BlockingTaskOperationResponseHandler();
// change status to InProgress
taskClient.start(id, assignee, operationResponseHandler);
}
// kSession.getWorkItemManager().completeWorkItem(task.getTaskData().getWorkItemId(), new
// HashMap<String,Object>());
BlockingTaskOperationResponseHandler taskResponseHandler =
new BlockingTaskOperationResponseHandler();
// TODO: since we're passing the variables map further down, maybe we don't need to pass it
// here? Test this.
ContentData contentData = ContentMarshallerHelper.marshal(outputMap, null);
taskClient.complete(id, assignee, contentData, taskResponseHandler);
taskResponseHandler.waitTillDone(1000);
// note that we have to pass the variables again.
kSession.getWorkItemManager().completeWorkItem(task.getTaskData().getWorkItemId(), outputMap);
// update completed date
// For some reason this does not get updated by default, and
// there appears to be no JBPM API way to do this!
org.jbpm.task.Task t = taskRepo.findOne(task.getId());
t.getTaskData().setCompletedOn(new Date());
// update the user
t.getTaskData().setActualOwner(new User(assignee));
// note that JPA handles updating of this object automatically
}
