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.hints;
  
  
  import org.apache.cassandra.diag.DiagnosticEventService;
  import org.apache.cassandra.hints.HintsServiceEvent.HintsServiceEventType;
  
  /**
   * Utility methods for DiagnosticEvents around the HintService.
   */
  final class HintsServiceDiagnostics
  {
      private static final DiagnosticEventService service = DiagnosticEventService.instance();
  
      private HintsServiceDiagnostics()
      {
      }
      
      static void dispatchingStarted(HintsService hintsService)
      {
          if (isEnabled(HintsServiceEventType.DISPATCHING_STARTED))
              service.publish(new HintsServiceEvent(HintsServiceEventType.DISPATCHING_STARTED, hintsService));
      }
  
      static void dispatchingShutdown(HintsService hintsService)
      {
          if (isEnabled(HintsServiceEventType.DISPATCHING_SHUTDOWN))
              service.publish(new HintsServiceEvent(HintsServiceEventType.DISPATCHING_SHUTDOWN, hintsService));
      }
  
      static void dispatchingPaused(HintsService hintsService)
      {
          if (isEnabled(HintsServiceEventType.DISPATCHING_PAUSED))
              service.publish(new HintsServiceEvent(HintsServiceEventType.DISPATCHING_PAUSED, hintsService));
      }
  
      static void dispatchingResumed(HintsService hintsService)
      {
          if (isEnabled(HintsServiceEventType.DISPATCHING_RESUMED))
              service.publish(new HintsServiceEvent(HintsServiceEventType.DISPATCHING_RESUMED, hintsService));
      }
  
      private static boolean isEnabled(HintsServiceEventType type)
      {
          return service.isEnabled(HintsServiceEvent.class, type);
      }
  
  }
  