content: /**
   * 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 com.jstorm.example.unittests.trident;
  
  import backtype.storm.tuple.Fields;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.concurrent.ThreadLocalRandom;
  
  /**
   * @author binyang.dby on 2016/7/9.
   *
   * This is a finite version of the RandomNumberGeneratorSpout class.
   */
  public class RandomNumberLimitBatchSpout extends BasicLimitBatchSpout {
      private int maxNumber;
      private int fieldSize;
  
      public RandomNumberLimitBatchSpout(long limit, Fields fields, int maxBatchSize, int maxNumber) {
          super(limit, fields, maxBatchSize);
          this.maxNumber = maxNumber;
          this.fieldSize = fields.size();
      }
  
      @Override
      protected List<List<Object>> getBatchContent(int maxBatchSize) {
          List<List<Object>> returnBatch = new ArrayList<List<Object>>();
          for(int i=0; i<maxBatchSize; i++)
          {
              List<Object> numbers = new ArrayList<Object>();
              for(int j=0; j<fieldSize; j++)
                  numbers.add(ThreadLocalRandom.current().nextInt(0, maxNumber + 1));
  
              returnBatch.add(numbers);
          }
  
          return returnBatch;
      }
  }
  