/*
    * Copyright 2018 the original author or authors.
    *
    *  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.openehealth.ipf.commons.audit.queue;
  
  import org.openehealth.ipf.commons.audit.AuditContext;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import javax.jms.JMSException;
  import javax.jms.Message;
  import javax.jms.MessageListener;
  import javax.jms.TextMessage;
  
  import static java.util.Objects.requireNonNull;
  
  /**
   * JMS Message Listener that receives audit messages from a queue and sends them
   * to an audit repository. It is recommended to use infrastructure classes such
   * as Spring's JMS MessageListenerContainers to control transactional behavior,
   * message redelivery and other features.
   *
   * @author Christian Ohr
   * @since 3.5
   */
  public class JmsAuditMessageListener implements MessageListener {
  
      private static final Logger LOG = LoggerFactory.getLogger(JmsAuditMessageListener.class);
  
      private final AuditContext auditContext;
  
      public JmsAuditMessageListener(AuditContext auditContext) {
          this.auditContext = requireNonNull(auditContext, "AuditContext must not be null");
      }
  
      @Override
      public void onMessage(Message message) {
          TextMessage textMessage = (TextMessage) message;
          try {
              String text = textMessage.getText();
              auditContext.getAuditTransmissionProtocol().send(auditContext, text);
          } catch (JMSException jmsException1) {
              LOG.error("Could not obtain text from JMS message", jmsException1);
          } catch (Exception e) {
              LOG.warn("Could not send audit message, rolling back", e);
              throw new RuntimeException(e);
          }
      }
  }