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 backtype.storm.testing;
  
  import static backtype.storm.utils.Utils.get;
  
  import backtype.storm.topology.OutputFieldsDeclarer;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.UUID;
  import java.util.concurrent.atomic.AtomicLong;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import backtype.storm.spout.SpoutOutputCollector;
  import backtype.storm.task.TopologyContext;
  import backtype.storm.topology.base.BaseRichSpout;
  import backtype.storm.tuple.Fields;
  import backtype.storm.tuple.Values;
  
  public class TestEventLogSpout extends BaseRichSpout {
      public static Logger LOG = LoggerFactory.getLogger(TestEventLogSpout.class);
  
      private static final Map<String, Integer> acked = new HashMap<>();
      private static final Map<String, Integer> failed = new HashMap<>();
  
      private String uid;
      private long totalCount;
  
      SpoutOutputCollector _collector;
      private long eventId = 0;
      private long myCount;
      private int source;
  
      public static int getNumAcked(String stormId) {
          synchronized (acked) {
              return get(acked, stormId, 0);
          }
      }
  
      public static int getNumFailed(String stormId) {
          synchronized (failed) {
              return get(failed, stormId, 0);
          }
      }
  
      public TestEventLogSpout(long totalCount) {
          this.uid = UUID.randomUUID().toString();
  
          synchronized (acked) {
              acked.put(uid, 0);
          }
          synchronized (failed) {
              failed.put(uid, 0);
          }
  
          this.totalCount = totalCount;
      }
  
      public void open(Map conf, TopologyContext context, SpoutOutputCollector collector) {
          _collector = collector;
          this.source = context.getThisTaskId();
          long taskCount = context.getComponentTasks(context.getThisComponentId()).size();
          myCount = totalCount / taskCount;
      }
  
      public void close() {
  
      }
  
      public void cleanup() {
          synchronized (acked) {
              acked.remove(uid);
          }
          synchronized (failed) {
              failed.remove(uid);
          }
      }
  
      public boolean completed() {
  
          int ackedAmt;
          int failedAmt;
  
          synchronized (acked) {
              ackedAmt = acked.get(uid);
          }
          synchronized (failed) {
              failedAmt = failed.get(uid);
          }
          int totalEmitted = ackedAmt + failedAmt;
  
          if (totalEmitted >= totalCount) {
              return true;
          }
          return false;
      }
  
      public void nextTuple() {
          if (eventId < myCount) {
              eventId++;
              _collector.emit(new Values(source, eventId), eventId);
          }
      }
  
      public void ack(Object msgId) {
          synchronized (acked) {
              int curr = get(acked, uid, 0);
              acked.put(uid, curr + 1);
          }
      }
  
      public void fail(Object msgId) {
          synchronized (failed) {
              int curr = get(failed, uid, 0);
              failed.put(uid, curr + 1);
          }
      }
  
      public void declareOutputFields(OutputFieldsDeclarer declarer) {
          declarer.declare(new Fields("source", "eventId"));
      }
  }