private void migrateActions(Task task) {
// replace data source references in actions
for (TaskActionInformation action : task.getActions()) {
for (Map.Entry<String, String> entry : action.getValues().entrySet()) {
String oldVal = entry.getValue();
String newVal = replaceTaskValue(oldVal, EXPR_PATTERN, task);
entry.setValue(newVal);
}
}
}
private Map<String, Object> createParameters(
TaskActionInformation info, ActionEvent action, KeyEvaluator keyEvaluator)
throws TaskHandlerException {
SortedSet<ActionParameter> actionParameters = action.getActionParameters();
Map<String, Object> parameters = new HashMap<>(actionParameters.size());
for (ActionParameter actionParameter : actionParameters) {
String key = actionParameter.getKey();
if (info.getValues().containsKey(key)) {
String template = info.getValues().get(key);
if (template == null) {
throw new TaskHandlerException(
TRIGGER, "task.error.templateNull", key, action.getDisplayName());
}
switch (actionParameter.getType()) {
case LIST:
parameters.put(key, convertToList((List<String>) LIST.parse(template), keyEvaluator));
break;
case MAP:
parameters.put(key, convertToMap(template, keyEvaluator));
break;
default:
try {
String userInput = keyEvaluator.evaluateTemplateString(template);
Object obj = actionParameter.getType().parse(userInput);
parameters.put(key, obj);
} catch (MotechException ex) {
throw new TaskHandlerException(TRIGGER, ex.getMessage(), ex, key);
}
}
} else {
if (actionParameter.isRequired()) {
throw new TaskHandlerException(
TRIGGER, "task.error.taskActionNotContainsField", action.getDisplayName(), key);
} else if (actionParameter.getType() == MAP) {
parameters.put(key, new HashMap<>());
} else if (actionParameter.getType() == LIST) {
parameters.put(key, new ArrayList<>());
} else {
parameters.put(key, null);
}
}
}
return parameters;
}
/**
* Executes the action for the given task.
*
* @param task the task for which its action should be executed, not null
* @param actionInformation the information about the action, not null
* @param actionIndex the order of the task action
* @param taskContext the context of the current task execution, not null
* @param activityId the ID of the activity associated with this execution
* @throws TaskHandlerException when the task couldn't be executed
*/
public void execute(
Task task,
TaskActionInformation actionInformation,
Integer actionIndex,
TaskContext taskContext,
long activityId)
throws TaskHandlerException {
LOGGER.info(
"Executing task action: {} from task: {}", actionInformation.getName(), task.getName());
KeyEvaluator keyEvaluator = new KeyEvaluator(taskContext);
ActionEvent action = getActionEvent(actionInformation);
Map<String, Object> parameters = createParameters(actionInformation, action, keyEvaluator);
addTriggerParameters(task, action, parameters, taskContext.getTriggerParameters());
LOGGER.debug(
"Parameters created: {} for task action: {}", parameters.toString(), action.getName());
if (action.hasService() && bundleContext != null) {
if (callActionServiceMethod(action, actionIndex, parameters, taskContext)) {
LOGGER.info(
"Action: {} from task: {} was executed through an OSGi service call",
actionInformation.getName(),
task.getName());
postExecutionHandler.handleActionExecuted(
taskContext.getTriggerParameters(), taskContext.getMetadata(), activityId);
return;
}
LOGGER.info("There is no service: {}", action.getServiceInterface());
activityService.addWarning(
task, "task.warning.serviceUnavailable", action.getServiceInterface());
}
if (!action.hasSubject()) {
throw new TaskHandlerException(ACTION, "task.error.cantExecuteAction");
} else {
eventRelay.sendEventMessage(
new MotechEvent(
action.getSubject(),
parameters,
TasksEventCallbackService.TASKS_EVENT_CALLBACK_NAME,
taskContext.getMetadata()));
LOGGER.info("Event: {} was sent", action.getSubject());
}
}