protected Map<String, Object> getVariablesToSet(ExecutionActionRequest actionRequest) {
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 = new RestResponseFactory().getVariableValue(var);
variablesToSet.put(var.getName(), actualVariableValue);
}
return variablesToSet;
}
@RequestMapping(
value = "/runtime/executions/{executionId}",
method = RequestMethod.PUT,
produces = "application/json")
public ExecutionResponse performExecutionAction(
@PathVariable String executionId,
@RequestBody ExecutionActionRequest actionRequest,
HttpServletRequest request,
HttpServletResponse response) {
Execution execution = getExecutionFromRequest(executionId);
if (ExecutionActionRequest.ACTION_SIGNAL.equals(actionRequest.getAction())) {
if (actionRequest.getVariables() != null) {
runtimeService.signal(execution.getId(), getVariablesToSet(actionRequest));
} else {
runtimeService.signal(execution.getId());
}
} else if (ExecutionActionRequest.ACTION_SIGNAL_EVENT_RECEIVED.equals(
actionRequest.getAction())) {
if (actionRequest.getSignalName() == null) {
throw new ActivitiIllegalArgumentException("Signal name is required");
}
if (actionRequest.getVariables() != null) {
runtimeService.signalEventReceived(
actionRequest.getSignalName(), execution.getId(), getVariablesToSet(actionRequest));
} else {
runtimeService.signalEventReceived(actionRequest.getSignalName(), execution.getId());
}
} else if (ExecutionActionRequest.ACTION_MESSAGE_EVENT_RECEIVED.equals(
actionRequest.getAction())) {
if (actionRequest.getMessageName() == null) {
throw new ActivitiIllegalArgumentException("Message name is required");
}
if (actionRequest.getVariables() != null) {
runtimeService.messageEventReceived(
actionRequest.getMessageName(), execution.getId(), getVariablesToSet(actionRequest));
} else {
runtimeService.messageEventReceived(actionRequest.getMessageName(), execution.getId());
}
} else {
throw new ActivitiIllegalArgumentException(
"Invalid action: '" + actionRequest.getAction() + "'.");
}
// Re-fetch the execution, could have changed due to action or even completed
execution = runtimeService.createExecutionQuery().executionId(execution.getId()).singleResult();
if (execution == null) {
// Execution is finished, return empty body to inform user
response.setStatus(HttpStatus.NO_CONTENT.value());
return null;
} else {
String serverRootUrl = request.getRequestURL().toString();
serverRootUrl = serverRootUrl.substring(0, serverRootUrl.indexOf("/runtime/executions/"));
return restResponseFactory.createExecutionResponse(execution, serverRootUrl);
}
}