OutputFieldsGetter.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.storm.topology;

import org.apache.storm.tuple.Fields;
import org.apache.storm.utils.Utils;

public class OutputFieldsGetter implements OutputFieldsDeclarer {
  private com.twitter.heron.api.topology.OutputFieldsDeclarer delegate;

  public OutputFieldsGetter(com.twitter.heron.api.topology.OutputFieldsDeclarer delegate) {
    this.delegate = delegate;
  }

  public void declare(Fields fields) {
    declare(false, fields);
  }

  public void declare(boolean direct, Fields fields) {
    declareStream(Utils.DEFAULT_STREAM_ID, direct, fields);
  }

  public void declareStream(String streamId, Fields fields) {
    declareStream(streamId, false, fields);
  }

  public void declareStream(String streamId, boolean direct, Fields fields) {
    delegate.declareStream(streamId, direct, fields.getDelegate());
  }
}