private org.wso2.carbon.ntask.core.TaskManager getTaskManager(boolean system) throws Exception {
TaskService taskService = NtaskService.getTaskService();
if (taskService == null) {
return null;
}
// TODO return our own task manager instance which wraps the Clustered
// task manager here.
return taskService.getTaskManager(
system ? TaskBuilder.TASK_TYPE_SYSTEM : TaskBuilder.TASK_TYPE_USER);
}
public boolean init(Properties properties) {
synchronized (lock) {
try {
TaskService taskService = NtaskService.getTaskService();
if (taskService == null || NtaskService.getCcServiceInstance() == null) {
// Cannot proceed with the initialization because the
// TaskService is not yet
// available. Register this as an observer so that this can
// be reinitialized
// within the NtaskService when the TaskService is
// available.
NtaskService.addObserver(this);
return false;
}
boolean isSingleNode =
NtaskService.getCcServiceInstance()
.getServerConfigContext()
.getAxisConfiguration()
.getClusteringAgent()
== null;
boolean isWorkerNode = !isSingleNode && CarbonUtils.isWorkerNode();
logger.debug("#init Single-Node: " + isSingleNode + " Worker-Node: " + isWorkerNode);
if (!isSingleNode && !isWorkerNode) {
// Skip running tasks on the management node
logger.debug("#init Skipping task registration");
initialized = true;
return true;
}
if ((taskManager = getTaskManager(false)) == null) {
return false;
}
// Register pending tasks..
Iterator tasks = pendingTasks.iterator();
while (tasks.hasNext()) {
TaskInfo taskInfo = (TaskInfo) tasks.next();
try {
List<TaskInfo> taskInfos = taskManager.getAllTasks();
boolean hasTask = false;
for (TaskInfo task : taskInfos) {
if (task.getName().equals(taskInfo.getName())) {
hasTask = true;
break;
}
}
if (hasTask) {
logger.debug(
"#init Pending task ["
+ taskInfo.getName()
+ "] is already available in the registry.");
continue;
}
taskManager.registerTask(taskInfo);
taskManager.scheduleTask(taskInfo.getName());
tasks.remove();
logger.debug("#init Scheduled pending task [" + taskInfo.getName() + "] SUCCESSFUL.");
} catch (TaskException e) {
logger.error(
"Could not schedule task ["
+ taskInfo.getName()
+ "]. Error: "
+ e.getLocalizedMessage(),
e);
}
}
// Run already deployed tasks..
taskService.registerTaskType(TaskBuilder.TASK_TYPE_USER);
taskService.registerTaskType(TaskBuilder.TASK_TYPE_SYSTEM);
initialized = true;
logger.info("initialized");
return true;
} catch (Exception e) {
logger.error("Cannot initialize task manager. Error: " + e.getLocalizedMessage(), e);
initialized = false;
}
}
return false;
}