@Post
public void executeTaskAction(TaskActionRequest actionRequest) {
if (!authenticate()) {
return;
}
if (actionRequest == null) {
throw new ResourceException(
new Status(
Status.CLIENT_ERROR_UNSUPPORTED_MEDIA_TYPE.getCode(),
"A request body was expected when executing a task action.",
null,
null));
}
Task task = getTaskFromRequest();
if (TaskActionRequest.ACTION_COMPLETE.equals(actionRequest.getAction())) {
completeTask(task, actionRequest);
} else if (TaskActionRequest.ACTION_CLAIM.equals(actionRequest.getAction())) {
claimTask(task, actionRequest);
} else if (TaskActionRequest.ACTION_DELEGATE.equals(actionRequest.getAction())) {
delegateTask(task, actionRequest);
} else if (TaskActionRequest.ACTION_RESOLVE.equals(actionRequest.getAction())) {
resolveTask(task, actionRequest);
} else {
throw new ActivitiIllegalArgumentException(
"Invalid action: '" + actionRequest.getAction() + "'.");
}
}
protected void completeTask(Task task, TaskActionRequest actionRequest) {
if (actionRequest.getVariables() != null) {
Map<String, Object> variablesToSet = new HashMap<String, Object>();
for (RestVariable var : actionRequest.getVariables()) {
if (var.getName() == null) {
throw new ActivitiIllegalArgumentException("Variable name is required");
}
Object actualVariableValue =
getApplication(ActivitiRestServicesApplication.class)
.getRestResponseFactory()
.getVariableValue(var);
variablesToSet.put(var.getName(), actualVariableValue);
}
ActivitiUtil.getTaskService().complete(task.getId(), variablesToSet);
} else {
ActivitiUtil.getTaskService().complete(task.getId());
}
}
protected void claimTask(Task task, TaskActionRequest actionRequest) {
// In case the task is already claimed, a ActivitiTaskAlreadyClaimedException is thown and
// converted to
// a CONFLICT response by the StatusService
ActivitiUtil.getTaskService().claim(task.getId(), actionRequest.getAssignee());
}
protected void delegateTask(Task task, TaskActionRequest actionRequest) {
if (actionRequest.getAssignee() == null) {
throw new ActivitiIllegalArgumentException("An assignee is required when delegating a task.");
}
ActivitiUtil.getTaskService().delegateTask(task.getId(), actionRequest.getAssignee());
}