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 org.apache.apex.examples.csvformatter;
  
  import java.util.Random;
  
  import javax.validation.constraints.Min;
  
  import org.codehaus.jettison.json.JSONException;
  import org.codehaus.jettison.json.JSONObject;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.datatorrent.api.DefaultOutputPort;
  import com.datatorrent.api.InputOperator;
  import com.datatorrent.common.util.BaseOperator;
  
  /**
   * @since 3.7.0
   */
  public class JsonGenerator extends BaseOperator implements InputOperator
  {
  
    private static final Logger LOG = LoggerFactory.getLogger(JsonGenerator.class);
  
    @Min(1)
    private int numTuples = 20;
    private transient int count = 0;
  
    public static Random rand = new Random();
    private int sleepTime = 5;
  
    public final transient DefaultOutputPort<byte[]> out = new DefaultOutputPort<byte[]>();
  
    private static String getJson()
    {
  
      JSONObject obj = new JSONObject();
      try {
        obj.put("campaignId", 1234);
        obj.put("campaignName", "SimpleCsvFormatterExample");
        obj.put("campaignBudget", 10000.0);
        obj.put("weatherTargeting", "false");
        obj.put("securityCode", "APEX");
      } catch (JSONException e) {
        return null;
      }
      return obj.toString();
    }
  
    @Override
    public void beginWindow(long windowId)
    {
      count = 0;
    }
  
    @Override
    public void emitTuples()
    {
      if (count++ < numTuples) {
        out.emit(getJson().getBytes());
      } else {
        try {
          Thread.sleep(sleepTime);
        } catch (InterruptedException e) {
          LOG.info("Sleep interrupted");
        }
      }
    }
  
    public int getNumTuples()
    {
      return numTuples;
    }
  
    public void setNumTuples(int numTuples)
    {
      this.numTuples = numTuples;
    }
  
  }
  