2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * Modifications Copyright (C) 2019-2020 Nordix Foundation.
5 * ================================================================================
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
10 * http://www.apache.org/licenses/LICENSE-2.0
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
18 * SPDX-License-Identifier: Apache-2.0
19 * ============LICENSE_END=========================================================
22 package org.onap.policy.apex.testsuites.integration.uservice.adapt.jms;
24 import javax.jms.Connection;
25 import javax.jms.ConnectionFactory;
26 import javax.jms.JMSException;
27 import javax.jms.Message;
28 import javax.jms.MessageConsumer;
29 import javax.jms.ObjectMessage;
30 import javax.jms.Session;
31 import javax.jms.TextMessage;
32 import javax.jms.Topic;
34 import org.apache.activemq.command.ActiveMQTopic;
35 import org.onap.policy.apex.core.infrastructure.threading.ThreadUtilities;
36 import org.onap.policy.apex.service.engine.event.ApexEventException;
37 import org.onap.policy.apex.service.engine.event.ApexEventRuntimeException;
38 import org.onap.policy.apex.testsuites.integration.common.testclasses.PingTestClass;
39 import org.slf4j.Logger;
40 import org.slf4j.LoggerFactory;
43 * The Class JmsEventSubscriber.
45 * @author Liam Fallon (liam.fallon@ericsson.com)
47 public class JmsEventSubscriber implements Runnable {
48 private static final Logger LOGGER = LoggerFactory.getLogger(JmsEventSubscriber.class);
50 private final String topic;
51 private long eventsReceivedCount = 0;
53 private final Thread subscriberThread;
54 private final Connection connection;
57 * Instantiates a new jms event subscriber.
59 * @param topic the topic
60 * @param connectionFactory the connection factory
61 * @param username the username
62 * @param password the password
63 * @throws JMSException the JMS exception
65 public JmsEventSubscriber(final String topic, final ConnectionFactory connectionFactory, final String username,
66 final String password) throws JMSException {
68 connection = connectionFactory.createConnection(username, password);
71 subscriberThread = new Thread(this);
72 subscriberThread.start();
80 final Topic jmsTopic = new ActiveMQTopic(topic);
81 try (final Session jmsSession = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
82 final MessageConsumer jmsConsumer = jmsSession.createConsumer(jmsTopic)) {
84 while (subscriberThread.isAlive() && !subscriberThread.isInterrupted()) {
86 final Message message = jmsConsumer.receive(100);
87 if (message == null) {
91 if (message instanceof ObjectMessage) {
92 final PingTestClass testPing = (PingTestClass) ((ObjectMessage) message).getObject();
94 } else if (message instanceof TextMessage) {
95 ((TextMessage) message).getText();
97 throw new ApexEventException("unknowm message \"" + message + "\" of type \""
98 + message.getClass().getName() + "\" received");
100 eventsReceivedCount++;
101 } catch (final Exception e) {
102 if (!(e.getCause() instanceof InterruptedException)) {
103 throw new ApexEventRuntimeException("JMS message reception failed", e);
108 } catch (final Exception e) {
109 throw new ApexEventRuntimeException("JMS event consumption failed", e);
112 LOGGER.info("{} : event reception completed, {} events received", this.getClass().getName(),
113 eventsReceivedCount);
117 * Gets the events received count.
119 * @return the events received count
121 public long getEventsReceivedCount() {
122 return eventsReceivedCount;
128 * @throws JMSException the JMS exception
130 public void shutdown() throws JMSException {
131 LOGGER.info("{} : stopping...", this.getClass().getName());
133 subscriberThread.interrupt();
135 while (subscriberThread.isAlive()) {
136 ThreadUtilities.sleep(10);
140 LOGGER.info("{} : stopped", this.getClass().getName());