samoa-storm/src/main/java/org/apache/samoa/topology/impl/StormStream.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
 *
 *   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 org.apache.samoa.topology.impl;

import java.util.UUID;

import org.apache.samoa.core.ContentEvent;
import org.apache.samoa.topology.Stream;

/**
 * Abstract class to implement Storm Stream
 * 
 * @author Arinto Murdopo
 * 
 */
abstract class StormStream implements Stream, java.io.Serializable {

  /**
	 * 
	 */
  private static final long serialVersionUID = 281835563756514852L;
  protected final String outputStreamId;
  protected final InputStreamId inputStreamId;

  public StormStream(String stormComponentId) {
    this.outputStreamId = UUID.randomUUID().toString();
    this.inputStreamId = new InputStreamId(stormComponentId, this.outputStreamId);
  }

  @Override
  public abstract void put(ContentEvent contentEvent);

  String getOutputId() {
    return this.outputStreamId;
  }

  InputStreamId getInputId() {
    return this.inputStreamId;
  }

  final static class InputStreamId implements java.io.Serializable {

    /**
		 * 
		 */
    private static final long serialVersionUID = -7457995634133691295L;
    private final String componentId;
    private final String streamId;

    InputStreamId(String componentId, String streamId) {
      this.componentId = componentId;
      this.streamId = streamId;
    }

    String getComponentId() {
      return componentId;
    }

    String getStreamId() {
      return streamId;
    }
  }

  @Override
  public void setBatchSize(int batchSize) {
    // Ignore batch size
  }
}