/** Executes specified fence action on all fence agents concurrently */
protected FenceOperationResult fenceConcurrently(FenceActionType fenceAction) {
List<FenceOperationResult> results = new ArrayList<>(fenceAgents.size());
FenceOperationResult taskResult;
ExecutorCompletionService<FenceOperationResult> tasksExecutor =
ThreadPoolUtil.createCompletionService();
List<Future<FenceOperationResult>> futures =
ThreadPoolUtil.submitTasks(tasksExecutor, createTasks(fenceAction));
for (int i = 0; i < fenceAgents.size(); ++i) {
try {
taskResult = tasksExecutor.take().get();
} catch (ExecutionException | InterruptedException e) {
taskResult = new FenceOperationResult(Status.ERROR, PowerStatus.UNKNOWN, e.getMessage());
log.error("Error getting task result: {}", e.getMessage());
log.debug("Exception", e);
}
results.add(taskResult);
if (tasksProcessor.isGoalReached(taskResult)) {
// action goal is reach, cancel all remaining tasks
for (Future<FenceOperationResult> future : futures) {
future.cancel(true);
}
break;
}
}
return tasksProcessor.createActionResult(results);
}
