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.camel.component.guava.eventbus;
  
  import com.google.common.eventbus.Subscribe;
  import org.apache.camel.Processor;
  
  /**
   * Subtype of CamelEventHandler with public method marked with Guava @Subscribe annotation. Supports filtering the
   * messages by event type on the Camel level.
   */
  public class FilteringCamelEventHandler extends CamelEventHandler {
  
      private final Class<?> eventClass;
  
      public FilteringCamelEventHandler(GuavaEventBusConsumer consumer, GuavaEventBusEndpoint endpoint, Processor processor,
                                        Class<?> eventClass) {
          super(consumer, endpoint, processor);
          this.eventClass = eventClass;
      }
  
      /**
       * Guava callback executed when an event was received.
       *
       * @param event the event
       */
      @Subscribe
      public void eventReceived(Object event) {
          if (eventClass == null || eventClass.isAssignableFrom(event.getClass())) {
              doEventReceived(event);
          } else {
              if (log.isDebugEnabled()) {
                  log.debug("Cannot process event: {} as its class type: {} is not assignable with: {}",
                          event, event.getClass().getName(), eventClass.getName());
              }
          }
      }
  
  }
  