2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.apex.testsuites.integration.uservice.adapt.jms;
23 import javax.jms.Connection;
24 import javax.jms.ConnectionFactory;
25 import javax.jms.JMSException;
26 import javax.jms.Message;
27 import javax.jms.MessageConsumer;
28 import javax.jms.ObjectMessage;
29 import javax.jms.Session;
30 import javax.jms.TextMessage;
31 import javax.jms.Topic;
33 import org.apache.activemq.command.ActiveMQTopic;
34 import org.onap.policy.apex.core.infrastructure.threading.ThreadUtilities;
35 import org.onap.policy.apex.service.engine.event.ApexEventException;
36 import org.onap.policy.apex.service.engine.event.ApexEventRuntimeException;
37 import org.slf4j.Logger;
38 import org.slf4j.LoggerFactory;
41 * The Class JmsEventSubscriber.
43 * @author Liam Fallon (liam.fallon@ericsson.com)
45 public class JmsEventSubscriber implements Runnable {
46 private static final Logger LOGGER = LoggerFactory.getLogger(JmsEventSubscriber.class);
48 private final String topic;
49 private long eventsReceivedCount = 0;
51 private final Thread subscriberThread;
52 private final Connection connection;
56 * Instantiates a new jms event subscriber.
58 * @param topic the topic
59 * @param connectionFactory the connection factory
60 * @param username the username
61 * @param password the password
62 * @throws JMSException the JMS exception
64 public JmsEventSubscriber(final String topic, final ConnectionFactory connectionFactory, final String username,
65 final String password) throws JMSException {
67 connection = connectionFactory.createConnection(username, password);
70 subscriberThread = new Thread(this);
71 subscriberThread.start();
75 * @see java.lang.Runnable#run()
79 final Topic jmsTopic = new ActiveMQTopic(topic);
80 try (final Session jmsSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
81 final MessageConsumer jmsConsumer = jmsSession.createConsumer(jmsTopic);) {
83 while (subscriberThread.isAlive() && !subscriberThread.isInterrupted()) {
85 final Message message = jmsConsumer.receive(100);
86 if (message == null) {
90 if (message instanceof ObjectMessage) {
91 final TestPing testPing = (TestPing) ((ObjectMessage) message).getObject();
93 } else if (message instanceof TextMessage) {
94 ((TextMessage) message).getText();
96 throw new ApexEventException("unknowm message \"" + message + "\" of type \""
97 + message.getClass().getCanonicalName() + "\" received");
99 eventsReceivedCount++;
100 } catch (final Exception e) {
105 } catch (final Exception e) {
106 throw new ApexEventRuntimeException("JMS event consumption failed", e);
109 LOGGER.info("{} : event reception completed", this.getClass().getCanonicalName());
113 * Gets the events received count.
115 * @return the events received count
117 public long getEventsReceivedCount() {
118 return eventsReceivedCount;
124 * @throws JMSException the JMS exception
126 public void shutdown() throws JMSException {
127 subscriberThread.interrupt();
129 while (subscriberThread.isAlive()) {
130 ThreadUtilities.sleep(10);
134 LOGGER.info("{} : stopped", this.getClass().getCanonicalName());