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.cassandra.utils.progress.jmx;
  
  import java.util.HashMap;
  import java.util.Map;
  import java.util.concurrent.atomic.AtomicLong;
  import javax.management.Notification;
  import javax.management.NotificationBroadcasterSupport;
  
  import org.apache.cassandra.utils.progress.ProgressEvent;
  import org.apache.cassandra.utils.progress.ProgressListener;
  
  import static org.apache.cassandra.utils.Clock.Global.currentTimeMillis;
  
  /**
   * ProgressListener that translates ProgressEvent to JMX Notification message.
   */
  public class JMXProgressSupport implements ProgressListener
  {
      private final AtomicLong notificationSerialNumber = new AtomicLong();
  
      private final NotificationBroadcasterSupport broadcaster;
  
      public JMXProgressSupport(NotificationBroadcasterSupport broadcaster)
      {
          this.broadcaster = broadcaster;
      }
  
      @Override
      public void progress(String tag, ProgressEvent event)
      {
          Notification notification = new Notification("progress",
                                                       tag,
                                                       notificationSerialNumber.getAndIncrement(),
                                                       currentTimeMillis(),
                                                       event.getMessage());
          Map<String, Integer> userData = new HashMap<>();
          userData.put("type", event.getType().ordinal());
          userData.put("progressCount", event.getProgressCount());
          userData.put("total", event.getTotal());
          notification.setUserData(userData);
          broadcaster.sendNotification(notification);
      }
  }
  