public List<Event> call() throws Exception {
TezRootInputInitializer initializer = createInitializer();
TezRootInputInitializerContext context = new TezRootInputInitializerContextImpl(
vertexID, dagName, vertexName, input.getEntityName(), input.getDescriptor(),
numTasks);
return initializer.initialize(context);
}
private TezRootInputInitializer createInitializer()
throws ClassNotFoundException, InstantiationException,
IllegalAccessException {