ResourceApp.java

/*
 * Copyright © 2014-2015 Cask Data, Inc.
 *
 * Licensed 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
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * 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 co.cask.cdap;

import co.cask.cdap.api.Resources;
import co.cask.cdap.api.app.AbstractApplication;
import co.cask.cdap.api.data.stream.Stream;
import co.cask.cdap.api.flow.AbstractFlow;
import co.cask.cdap.api.flow.flowlet.AbstractFlowlet;
import co.cask.cdap.api.flow.flowlet.StreamEvent;
import co.cask.cdap.api.mapreduce.AbstractMapReduce;

/**
 * This is an Application used for only testing that sets various resources for different
 * flowlets and mapreduce tasks.
 */
public class ResourceApp extends AbstractApplication {
  @Override
  public void configure() {
    setName("ResourceApp");
    setDescription("Resource Application");
    addStream(new Stream("X"));
    addFlow(new ResourceFlow());
    addMapReduce(new DummyBatch());
  }

  /**
   * Some flow
   */
  public static final class ResourceFlow extends AbstractFlow {

    @Override
    protected void configureFlow() {
      setName("ResourceFlow");
      setDescription("Simple Resource Flow");
      addFlowlet("A", new A());
      addFlowlet("B", new B());
      connectStream("X", "A");
      connectStream("X", "B");
    }
  }

  /**
   * A map/reduce job.
   */
  public static class DummyBatch extends AbstractMapReduce {
    @Override
    public void configure() {
      setName("dummy-batch");
      setMapperResources(new Resources(512));
      setReducerResources(new Resources(1024));
    }
  }

  /**
   * A dummy flowlet
   */
  public static final class A extends AbstractFlowlet {

    @Override
    public void configure() {
      setName("A");
      setDescription("A flowlet");
      setResources(new Resources(1024, 2));
    }

    public void process(StreamEvent event) {
    }
  }

  /**
   * Another dummy flowlet
   */
  public static final class B extends AbstractFlowlet {

    @Override
    public void configure() {
      setName("B");
      setDescription("B flowlet");
      setResources(new Resources(2048, 5));
    }

    public void process(StreamEvent event) {
    }
  }
}