/**
* Creates a map with the taskIds as keys and the list of tasks related to each taskId (key) as
* value
*
* @param tasks
* @return
*/
private HashMap<UUID, ArrayList<TapeRecallTO>> buildGroupTaskMap(ArrayList<TapeRecallTO> tasks) {
HashMap<UUID, ArrayList<TapeRecallTO>> groupTaskMap =
new HashMap<UUID, ArrayList<TapeRecallTO>>();
for (TapeRecallTO task : tasks) {
ArrayList<TapeRecallTO> taskList = groupTaskMap.get(task.getGroupTaskId());
if (taskList == null) {
taskList = new ArrayList<TapeRecallTO>();
groupTaskMap.put(task.getGroupTaskId(), taskList);
}
taskList.add(task);
}
return groupTaskMap;
}
/**
* Given a list of tasks with the same taskId oproduces a single task merging the list members
*
* @param recallTasks
* @return
*/
private TapeRecallTO makeOne(ArrayList<TapeRecallTO> recallTasks)
throws IllegalArgumentException {
TapeRecallTO taskTO = new TapeRecallTO();
UUID taskId = recallTasks.get(0).getTaskId();
// verify that all have the same task id
for (TapeRecallTO recallTask : recallTasks) {
if (!recallTask.getTaskId().equals(taskId)) {
log.error(
"Received a list of not omogeneous tasks, the taskid '{}' is not matched by : {}",
taskId,
recallTask.toString());
throw new IllegalArgumentException("Received a list of not omogeneous tasks");
}
}
for (TapeRecallTO recallTask : recallTasks) {
// set common fields from any of the tasks
taskTO.setTaskId(recallTask.getTaskId());
taskTO.setGroupTaskId(recallTask.getGroupTaskId());
taskTO.setRequestToken(recallTask.getRequestToken());
taskTO.setRequestType(recallTask.getRequestType());
taskTO.setFileName(recallTask.getFileName());
taskTO.setUserID(recallTask.getUserID());
taskTO.setVoName(recallTask.getVoName());
taskTO.setStatus(TapeRecallStatus.QUEUED);
break;
}
/*
* merge task on recall related fields to have a pin that starts as soon as
* requested and last as long as needed
*/
int maxRetryAttempt = 0;
Date minInsertionInstant = null;
Date minDeferredRecallInstant = null;
Date maxPinExpirationInstant = null;
for (TapeRecallTO recallTask : recallTasks) {
if (recallTask.getRetryAttempt() > maxRetryAttempt) {
maxRetryAttempt = recallTask.getRetryAttempt();
}
if (minInsertionInstant == null
|| recallTask.getInsertionInstant().before(minInsertionInstant)) {
minInsertionInstant = recallTask.getInsertionInstant();
}
if (minDeferredRecallInstant == null
|| recallTask.getDeferredRecallInstant().before(minDeferredRecallInstant)) {
minDeferredRecallInstant = recallTask.getDeferredRecallInstant();
}
Date currentPinExpirationInstant =
new Date(
recallTask.getDeferredRecallInstant().getTime()
+ (recallTask.getPinLifetime() * 1000));
if (maxPinExpirationInstant == null
|| currentPinExpirationInstant.after(maxPinExpirationInstant)) {
maxPinExpirationInstant = currentPinExpirationInstant;
}
}
taskTO.setRetryAttempt(maxRetryAttempt);
taskTO.setInsertionInstant(minInsertionInstant);
taskTO.setDeferredRecallInstant(minDeferredRecallInstant);
int pinLifeTime =
(int) (maxPinExpirationInstant.getTime() - minDeferredRecallInstant.getTime()) / 1000;
taskTO.setPinLifetime(pinLifeTime);
return taskTO;
}