add MQ consumer

Issue-ID: HOLMES-47

Change-Id: I16109e668ca20819af2e53de906387ec12907e7b
Signed-off-by: Shiwei Tian <tian.shiwei@zte.com.cn>

2 files changed, 303 insertions, 0 deletions

diff --git a/engine-d/src/main/java/org/onap/holmes/engine/mqconsumer/MQConsumer.java b/engine-d/src/main/java/org/onap/holmes/engine/mqconsumer/MQConsumer.java
new file mode 100644
index 0000000..bd77312
--- /dev/null
+++ b/engine-d/src/main/java/org/onap/holmes/engine/mqconsumer/MQConsumer.java
@@ -0,0 +1,114 @@
+/**
+ * Copyright 2017 ZTE Corporation.
+ *
+ * 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.onap.holmes.engine.mqconsumer;
+
+import java.io.Serializable;
+import javax.inject.Inject;
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.Destination;
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageConsumer;
+import javax.jms.MessageListener;
+import javax.jms.Session;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.activemq.ActiveMQConnectionFactory;
+import org.apache.activemq.command.ActiveMQObjectMessage;
+import org.glassfish.hk2.api.IterableProvider;
+import org.jvnet.hk2.annotations.Service;
+import org.onap.holmes.common.api.stat.VesAlarm;
+import org.onap.holmes.common.config.MQConfig;
+import org.onap.holmes.common.constant.AlarmConst;
+import org.onap.holmes.engine.manager.DroolsEngine;
+
+@Service
+@Slf4j
+@NoArgsConstructor
+public class MQConsumer {
+
+    @Inject
+    private IterableProvider<MQConfig> mqConfigProvider;
+    private ConnectionFactory connectionFactory;
+    private ConnectionFactory connectionFactory1;
+    @Inject
+    private DroolsEngine engine;
+
+    public void registerAlarmTopicListener() {
+        String brokerURL =
+                "tcp://" + mqConfigProvider.get().brokerIp + ":" + mqConfigProvider.get().brokerPort;
+        connectionFactory = new ActiveMQConnectionFactory(mqConfigProvider.get().brokerUsername,
+                mqConfigProvider.get().brokerPassword, brokerURL);
+
+        AlarmMqMessageListener listener = new AlarmMqMessageListener();
+        listener.receive();
+    }
+    class AlarmMqMessageListener implements MessageListener {
+
+        private Connection connection = null;
+        private Session session = null;
+        private Destination destination = null;
+        private MessageConsumer consumer = null;
+
+        private void initialize() throws JMSException {
+            connection = connectionFactory.createConnection();
+            session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
+            destination = session.createTopic(AlarmConst.MQ_TOPIC_NAME_ALARM);
+            consumer = session.createConsumer(destination);
+            connection.start();
+        }
+
+        public void receive() {
+            try {
+                initialize();
+                consumer.setMessageListener(this);
+            } catch (JMSException e) {
+                log.error("Failed to connect to the MQ service : " + e.getMessage(), e);
+                try {
+                    close();
+                } catch (JMSException e1) {
+                    log.error("Failed close connection  " + e1.getMessage(), e1);
+                }
+            }
+        }
+
+        public void onMessage(Message arg0) {
+            ActiveMQObjectMessage objectMessage = (ActiveMQObjectMessage) arg0;
+            try {
+                Serializable object = objectMessage.getObject();
+                if (object instanceof VesAlarm) {
+                    VesAlarm vesAlarm = (VesAlarm) object;
+                    engine.putRaisedIntoStream(vesAlarm);
+                }
+            } catch (JMSException e) {
+                log.error("Failed get object : " + e.getMessage(), e);
+            }
+        }
+
+        private void close() throws JMSException {
+            if (consumer != null) {
+                consumer.close();
+            }
+            if (session != null) {
+                session.close();
+            }
+            if (connection != null) {
+                connection.close();
+            }
+        }
+    }
+}
diff --git a/engine-d/src/test/java/org/onap/holmes/engine/mqconsumer/MQConsumerTest.java b/engine-d/src/test/java/org/onap/holmes/engine/mqconsumer/MQConsumerTest.java
new file mode 100644
index 0000000..b1ea3cb
--- /dev/null
+++ b/engine-d/src/test/java/org/onap/holmes/engine/mqconsumer/MQConsumerTest.java
@@ -0,0 +1,189 @@
+/**
+ * Copyright 2017 ZTE Corporation.
+ *
+ * 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.onap.holmes.engine.mqconsumer;
+
+import static org.easymock.EasyMock.anyBoolean;
+import static org.easymock.EasyMock.anyInt;
+import static org.easymock.EasyMock.anyObject;
+import static org.easymock.EasyMock.expect;
+
+
+import javax.jms.Connection;
+import javax.jms.ConnectionFactory;
+import javax.jms.Destination;
+import javax.jms.JMSException;
+import javax.jms.MessageConsumer;
+import javax.jms.Session;
+import javax.jms.Topic;
+import org.apache.activemq.command.ActiveMQObjectMessage;
+import org.easymock.EasyMock;
+import org.glassfish.hk2.api.IterableProvider;
+import org.junit.Before;
+import org.junit.Test;
+import org.onap.holmes.common.api.stat.Alarm;
+import org.onap.holmes.common.config.MQConfig;
+import org.powermock.api.easymock.PowerMock;
+import org.powermock.reflect.Whitebox;
+
+public class MQConsumerTest {
+
+    private IterableProvider<MQConfig> mqConfigProvider;
+
+    private ConnectionFactory connectionFactory;
+
+    private MQConsumer mqConsumer;
+
+    private MQConsumer mqConsumer1;
+
+    private MQConsumer mqConsumer2;
+
+    @Before
+    public void setUp() {
+
+        mqConsumer = new MQConsumer();
+
+        mqConfigProvider = PowerMock.createMock(IterableProvider.class);
+        connectionFactory = PowerMock.createMock(ConnectionFactory.class);
+
+        Whitebox.setInternalState(mqConsumer, "mqConfigProvider", mqConfigProvider);
+        Whitebox.setInternalState(mqConsumer, "connectionFactory", connectionFactory);
+    }
+
+    @Test
+    public void init() throws Exception {
+        MQConfig mqConfig = new MQConfig();
+        mqConfig.brokerIp = "127.0.0.1";
+        mqConfig.brokerPort = 4567;
+        mqConfig.brokerUsername = "admin";
+        mqConfig.brokerPassword = "admin";
+
+        expect(mqConfigProvider.get()).andReturn(mqConfig).anyTimes();
+        PowerMock.replayAll();
+
+        PowerMock.verifyAll();
+    }
+
+    @Test
+    public void listener_receive() throws JMSException {
+        MQConsumer.AlarmMqMessageListener listener = mqConsumer.new AlarmMqMessageListener();
+
+        Connection connection = PowerMock.createMock(Connection.class);
+        Session session = PowerMock.createMock(Session.class);
+        Destination destination = PowerMock.createMock(Topic.class);
+        MessageConsumer consumer = PowerMock.createMock(MessageConsumer.class);
+
+        Whitebox.setInternalState(listener, "connection", connection);
+        Whitebox.setInternalState(listener, "session", session);
+        Whitebox.setInternalState(listener, "destination", destination);
+        Whitebox.setInternalState(listener, "consumer", consumer);
+
+        PowerMock.reset();
+
+        expect(connectionFactory.createConnection()).andReturn(connection);
+        connection.start();
+        expect(connection.createSession(anyBoolean(), anyInt())).andReturn(session);
+        expect(session.createTopic(anyObject(String.class))).andReturn((Topic) destination);
+        expect(session.createConsumer(anyObject(Destination.class))).andReturn(consumer);
+        consumer.setMessageListener(listener);
+
+        PowerMock.replayAll();
+
+        listener.receive();
+
+        PowerMock.verifyAll();
+    }
+
+    @Test
+    public void listener_exception() throws JMSException {
+        MQConsumer.AlarmMqMessageListener listener = mqConsumer.new AlarmMqMessageListener();
+
+        Connection connection = PowerMock.createMock(Connection.class);
+        Session session = PowerMock.createMock(Session.class);
+        Destination destination = PowerMock.createMock(Topic.class);
+        MessageConsumer consumer = PowerMock.createMock(MessageConsumer.class);
+
+        Whitebox.setInternalState(listener, "connection", connection);
+        Whitebox.setInternalState(listener, "session", session);
+        Whitebox.setInternalState(listener, "destination", destination);
+        Whitebox.setInternalState(listener, "consumer", consumer);
+
+        PowerMock.reset();
+
+        expect(connectionFactory.createConnection()).andReturn(connection);
+        connection.start();
+        expect(connection.createSession(anyBoolean(), anyInt())).andReturn(session);
+        expect(session.createTopic(anyObject(String.class))).andReturn((Topic) destination);
+        expect(session.createConsumer(anyObject(Destination.class))).andReturn(consumer);
+        consumer.setMessageListener(listener);
+        EasyMock.expectLastCall().andThrow(new JMSException(""));
+
+        consumer.close();
+        session.close();
+        connection.close();
+
+        PowerMock.replayAll();
+
+        listener.receive();
+
+        PowerMock.verifyAll();
+    }
+
+    @Test
+    public void listener_close_exception() throws JMSException {
+        MQConsumer.AlarmMqMessageListener listener = mqConsumer.new AlarmMqMessageListener();
+
+        Connection connection = PowerMock.createMock(Connection.class);
+        Session session = PowerMock.createMock(Session.class);
+        Destination destination = PowerMock.createMock(Topic.class);
+        MessageConsumer consumer = PowerMock.createMock(MessageConsumer.class);
+
+        Whitebox.setInternalState(listener, "connection", connection);
+        Whitebox.setInternalState(listener, "session", session);
+        Whitebox.setInternalState(listener, "destination", destination);
+        Whitebox.setInternalState(listener, "consumer", consumer);
+
+        PowerMock.reset();
+
+        expect(connectionFactory.createConnection()).andReturn(connection);
+        connection.start();
+        expect(connection.createSession(anyBoolean(), anyInt())).andReturn(session);
+        expect(session.createTopic(anyObject(String.class))).andReturn((Topic) destination);
+        expect(session.createConsumer(anyObject(Destination.class))).andReturn(consumer);
+        consumer.setMessageListener(listener);
+        EasyMock.expectLastCall().andThrow(new JMSException(""));
+
+        consumer.close();
+        EasyMock.expectLastCall().andThrow(new JMSException(""));
+
+        PowerMock.replayAll();
+
+        listener.receive();
+
+        PowerMock.verifyAll();
+    }
+
+    @Test
+    public void listener_on_message() throws JMSException {
+        MQConsumer.AlarmMqMessageListener listener = mqConsumer.new AlarmMqMessageListener();
+        Alarm alarm = new Alarm();
+        alarm.setAlarmKey("alarmKey");
+        ActiveMQObjectMessage objectMessage = new ActiveMQObjectMessage();
+        objectMessage.setObject(alarm);
+
+        listener.onMessage(objectMessage);
+    }
+}