Application.java

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.myapexapp;

import org.apache.hadoop.conf.Configuration;

import com.datatorrent.api.annotation.ApplicationAnnotation;
import com.datatorrent.api.StreamingApplication;
import com.datatorrent.api.DAG;
import com.datatorrent.api.DAG.Locality;

@ApplicationAnnotation(name="MyFirstApplication")
public class Application implements StreamingApplication
{

  @Override
  public void populateDAG(DAG dag, Configuration conf)
  {
    RandomNumberGenerator randomGenerator = dag.addOperator("randomGenerator", RandomNumberGenerator.class);
    randomGenerator.setNumTuples(500);

    ConsoleOutputOperator cons = dag.addOperator("console", new ConsoleOutputOperator());

    dag.addStream("randomData", randomGenerator.out, cons.input).setLocality(Locality.CONTAINER_LOCAL);
  }
}