samoa-s4/src/main/java/org/apache/samoa/topology/impl/S4Topology.java

package org.apache.samoa.topology.impl;

/*
 * #%L
 * SAMOA
 * %%
 * Copyright (C) 2014 - 2015 Apache Software Foundation
 * %%
 * 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.
 * #L%
 */

import org.apache.samoa.topology.AbstractTopology;
import org.apache.samoa.topology.EntranceProcessingItem;

public class S4Topology extends AbstractTopology {

  // CASEY: it seems evaluationTask is not used.
  // Remove it for now

  // private String _evaluationTask;

  // S4Topology(String topoName, String evalTask) {
  // super(topoName);
  // }
  //
  // S4Topology(String topoName) {
  // this(topoName, null);
  // }

  // @Override
  // public void setEvaluationTask(String evalTask) {
  // _evaluationTask = evalTask;
  // }
  //
  // @Override
  // public String getEvaluationTask() {
  // return _evaluationTask;
  // }

  S4Topology(String topoName) {
    super(topoName);
  }

  protected EntranceProcessingItem getEntranceProcessingItem() {
    if (this.getEntranceProcessingItems() == null)
      return null;
    if (this.getEntranceProcessingItems().size() < 1)
      return null;
    // TODO: support multiple entrance PIs
    return (EntranceProcessingItem) this.getEntranceProcessingItems().toArray()[0];
  }
}