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 java.util.Map;
  import java.util.UUID;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.atomic.AtomicInteger;
  
  public class AckTracker implements AckFailDelegate {
      private static Map<String, AtomicInteger> acks = new ConcurrentHashMap<String, AtomicInteger>();
  
      private String _id;
  
      public AckTracker() {
          _id = UUID.randomUUID().toString();
          acks.put(_id, new AtomicInteger(0));
      }
  
      @Override
      public void ack(Object id) {
          acks.get(_id).incrementAndGet();
      }
  
      @Override
      public void fail(Object id) {
      }
  
      public int getNumAcks() {
          return acks.get(_id).intValue();
      }
  
      public void resetNumAcks() {
          acks.get(_id).set(0);
      }
  
  }
  