content: /**
   * JBoss, Home of Professional Open Source
   * Copyright Red Hat, Inc., and individual contributors.
   *
   * Licensed 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.jboss.aerogear.unifiedpush.message.jms;
  
  import javax.ejb.TransactionAttribute;
  import javax.ejb.TransactionAttributeType;
  import javax.ejb.TransactionManagement;
  import javax.ejb.TransactionManagementType;
  import javax.enterprise.event.Event;
  import javax.inject.Inject;
  
  import org.jboss.aerogear.unifiedpush.message.exception.DispatchInitiationException;
  import org.jboss.aerogear.unifiedpush.message.holder.MessageHolderWithTokens;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Consumes {@link MessageHolderWithTokens} from queue and pass them as a CDI event for further processing.
   *
   * This class serves as mediator for decoupling of JMS subsystem and services that observes these messages.
   */
  @TransactionManagement(TransactionManagementType.CONTAINER)
  @TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED)
  public class MessageHolderWithTokensConsumer extends AbstractJMSMessageListener<MessageHolderWithTokens> {
  
      private static final Logger logger = LoggerFactory.getLogger(MessageHolderWithTokensConsumer.class);
  
      @Inject
      @Dequeue
      private Event<MessageHolderWithTokens> dequeueEvent;
  
      @Override
      public void onMessage(MessageHolderWithTokens message) {
          try {
              logger.trace("receiving tokens from queue, triggering Notification Dispatcher class to pick the right sender");
              dequeueEvent.fire(message);
          } catch (DispatchInitiationException e) {
              throw e;
          } catch (Exception e) {
              logger.error("NotificationDispatcher or PushNotificationSender unexpectedly failed, the message won't be redelivered", e);
          }
      }
  }
  