public void sendTezEventToDestinationTasks(TezEvent tezEvent) {
if (!bufferEvents.get()) {
List<Integer> destTaskIndices = new ArrayList<Integer>();
boolean isDataMovementEvent = true;
switch (tezEvent.getEventType()) {
case INPUT_FAILED_EVENT:
isDataMovementEvent = false;
case DATA_MOVEMENT_EVENT:
Event event = tezEvent.getEvent();
TezTaskAttemptID sourceAttemptId = tezEvent.getSourceInfo().getTaskAttemptID();
int sourceTaskIndex = sourceAttemptId.getTaskID().getId();
if (isDataMovementEvent) {
edgeManager.routeEventToDestinationTasks(
(DataMovementEvent) event,
sourceTaskIndex,
destinationVertex.getTotalTasks(),
destTaskIndices);
} else {
edgeManager.routeEventToDestinationTasks(
(InputFailedEvent) event,
sourceTaskIndex,
destinationVertex.getTotalTasks(),
destTaskIndices);
}
for (Integer destTaskIndex : destTaskIndices) {
EventMetaData destMeta =
new EventMetaData(
EventProducerConsumerType.INPUT,
destinationVertex.getName(),
sourceVertex.getName(),
null); // will be filled by Task when sending the event. Is it needed?
if (isDataMovementEvent) {
destMeta.setIndex(((DataMovementEvent) event).getTargetIndex());
} else {
destMeta.setIndex(((InputFailedEvent) event).getTargetIndex());
}
tezEvent.setDestinationInfo(destMeta);
TezTaskID destTaskId = destinationVertex.getTask(destTaskIndex).getTaskId();
sendEventToTask(destTaskId, tezEvent);
}
break;
default:
throw new TezUncheckedException("Unhandled tez event type: " + tezEvent.getEventType());
}
} else {
destinationEventBuffer.add(tezEvent);
}
}
public InputSpec getDestinationSpec(int destinationTaskIndex) {
return new InputSpec(
sourceVertex.getName(),
edgeProperty.getEdgeDestination(),
edgeManager.getNumDestinationTaskInputs(
sourceVertex.getTotalTasks(), destinationTaskIndex));
}
public void setDestinationVertex(Vertex destinationVertex) {
if (this.destinationVertex != null && this.destinationVertex != destinationVertex) {
throw new TezUncheckedException("Destination vertex exists: " + destinationVertex.getName());
}
this.destinationVertex = destinationVertex;
}
public void setSourceVertex(Vertex sourceVertex) {
if (this.sourceVertex != null && this.sourceVertex != sourceVertex) {
throw new TezUncheckedException("Source vertex exists: " + sourceVertex.getName());
}
this.sourceVertex = sourceVertex;
}
public OutputSpec getSourceSpec(int sourceTaskIndex) {
return new OutputSpec(
destinationVertex.getName(),
edgeProperty.getEdgeSource(),
edgeManager.getNumSourceTaskOutputs(destinationVertex.getTotalTasks(), sourceTaskIndex));
}