/**
 * 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;
    }
}