engine-d/src/main/java/org/openo/holmes/enginemgt/listener/AlarmMqMessageListener.java

   1 /**
   2  * Copyright 2017 ZTE Corporation.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16 package org.openo.holmes.enginemgt.listener;
  17
  18
  19 import javax.annotation.PostConstruct;
  20 import javax.inject.Inject;
  21 import javax.jms.Connection;
  22 import javax.jms.ConnectionFactory;
  23 import javax.jms.Destination;
  24 import javax.jms.JMSException;
  25 import javax.jms.MessageConsumer;
  26 import javax.jms.ObjectMessage;
  27 import javax.jms.Session;
  28 import lombok.extern.slf4j.Slf4j;
  29 import org.apache.activemq.ActiveMQConnectionFactory;
  30 import org.glassfish.hk2.api.IterableProvider;
  31 import org.jvnet.hk2.annotations.Service;
  32 import org.openo.holmes.common.api.stat.Alarm;
  33 import org.openo.holmes.common.config.MQConfig;
  34 import org.openo.holmes.common.constant.AlarmConst;
  35 import org.openo.holmes.enginemgt.manager.DroolsEngine;
  36
  37 @Service
  38 @Slf4j
  39 public class AlarmMqMessageListener implements Runnable {
  40
  41     @Inject
  42     private static IterableProvider<MQConfig> mqConfigProvider;
  43     @Inject
  44     DroolsEngine droolsEngine;
  45     private ConnectionFactory connectionFactory;
  46
  47     @PostConstruct
  48     public void init() {
  49
  50         String brokerURL =
  51             "tcp://" + mqConfigProvider.get().brokerIp + ":" + mqConfigProvider.get().brokerPort;
  52         connectionFactory = new ActiveMQConnectionFactory(mqConfigProvider.get().brokerUsername,
  53             mqConfigProvider.get().brokerPassword, brokerURL);
  54     }
  55
  56
  57     public void run() {
  58         Connection connection;
  59         Session session;
  60         Destination destination;
  61         MessageConsumer messageConsumer;
  62
  63         try {
  64             connection = connectionFactory.createConnection();
  65             connection.start();
  66             session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
  67             destination = session.createTopic(AlarmConst.MQ_TOPIC_NAME_ALARM);
  68             messageConsumer = session.createConsumer(destination);
  69
  70             while (true) {
  71                 ObjectMessage objMessage = (ObjectMessage) messageConsumer.receive(100000);
  72                 if (objMessage != null) {
  73                     droolsEngine.putRaisedIntoStream((Alarm) objMessage.getObject());
  74                 } else {
  75                     break;
  76                 }
  77             }
  78         } catch (JMSException e) {
  79             log.debug("Receive alarm failure" + e.getMessage());
  80         }
  81
  82     }
  83 }