How to use

getEventGenerator

method

in

org.apache.tez.runtime.api.impl.EventMetaData

switch (e.getDestinationInfo().getEventGenerator()) {
case INPUT:
 LogicalInput input = inputsMap.get(
registerError();
EventMetaData sourceInfo = new EventMetaData(
  e.getDestinationInfo().getEventGenerator(),
  taskSpec.getVertexName(), e.getDestinationInfo().getEdgeVertexName(),
  getTaskAttemptID());

public static RecoveryProtos.EventMetaDataProto convertEventMetaDataToProto(
  EventMetaData eventMetaData) {
 RecoveryProtos.EventMetaDataProto.Builder builder =
   RecoveryProtos.EventMetaDataProto.newBuilder()
   .setProducerConsumerType(eventMetaData.getEventGenerator().ordinal())
   .setEdgeVertexName(eventMetaData.getEdgeVertexName())
   .setTaskVertexName(eventMetaData.getTaskVertexName());
 if (eventMetaData.getTaskAttemptID() != null) {
   builder.setTaskAttemptId(eventMetaData.getTaskAttemptID().toString());
 }
 return builder.build();
}

case TASK_ATTEMPT_KILLED_EVENT:
 TaskAttemptTerminationCause errCause = null;
 switch (sourceMeta.getEventGenerator()) {
 case INPUT:
  errCause = TaskAttemptTerminationCause.INPUT_READ_ERROR;
 default:
  throw new TezUncheckedException("Unknown EventProducerConsumerType: " +
    sourceMeta.getEventGenerator());