@Override
protected void invokePostStepArtifacts() {
// Invoke the reducer after all parallel steps are done
if (this.partitionReducerProxy != null) {
try {
if ((BatchStatus.COMPLETED).equals(stepContext.getBatchStatus())) {
this.partitionReducerProxy.afterPartitionedStepCompletion(PartitionStatus.COMMIT);
} else {
this.partitionReducerProxy.afterPartitionedStepCompletion(PartitionStatus.ROLLBACK);
}
} catch (Exception e) {
ExceptionConfig.wrapBatchException(e);
}
}
// Called in spec'd order, e.g. Sec. 11.7
if (stepListeners != null) {
for (StepListener listenerProxy : stepListeners) {
// Call afterStep on all the step listeners
try {
listenerProxy.afterStep();
} catch (Exception e) {
ExceptionConfig.wrapBatchException(e);
}
}
}
}
@Override
protected void invokePreStepArtifacts() {
if (stepListeners != null) {
for (StepListener listenerProxy : stepListeners) {
// Call beforeStep on all the step listeners
try {
listenerProxy.beforeStep();
} catch (Exception e) {
ExceptionConfig.wrapBatchException(e);
}
}
}
// Invoke the reducer before all parallel steps start (must occur
// before mapper as well)
if (this.partitionReducerProxy != null) {
try {
this.partitionReducerProxy.beginPartitionedStep();
} catch (Exception e) {
ExceptionConfig.wrapBatchException(e);
}
}
}