Event Client library support for RabbitMQ

Update version in RabbitMQ Event Client lib

License header update
Issue-ID: AAI-1205
Change-Id: I838c184a0b81d89d5d276fbeee373cf5c390fb22
Signed-off-by: Gurjeet Bedi <gurjeetb@amdocs.com>

4 files changed, 867 insertions, 0 deletions

diff --git a/event-client-rabbitmq/src/main/java/org/onap/aai/event/client/RabbitMqEventConsumer.java b/event-client-rabbitmq/src/main/java/org/onap/aai/event/client/RabbitMqEventConsumer.java
new file mode 100644
index 0000000..c564198
--- /dev/null
+++ b/event-client-rabbitmq/src/main/java/org/onap/aai/event/client/RabbitMqEventConsumer.java
@@ -0,0 +1,312 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2018 European Software Marketing Ltd.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+package org.onap.aai.event.client;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+import org.onap.aai.cl.api.Logger;
+import org.onap.aai.cl.eelf.LoggerFactory;
+import org.onap.aai.event.api.EventConsumer;
+import org.onap.aai.event.api.MessageWithOffset;
+
+import com.rabbitmq.client.Address;
+import com.rabbitmq.client.BuiltinExchangeType;
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+import com.rabbitmq.client.DefaultConsumer;
+import com.rabbitmq.client.Envelope;
+import com.rabbitmq.client.AMQP;
+import com.rabbitmq.client.AMQP.Exchange.DeclareOk;
+
+/**
+ * Event bus client consumer wrapper for RabbitMQ.
+ * This will open a async consumer which will put messages on internal queue so that calling client can then
+ * consume and ackowledge the same based on offset/deliveryTag.
+ * Topic exchange type is powerful and can behave like other exchanges.
+ * When a queue is bound with "#" (hash) binding key - it will receive all the messages, regardless of the routing key - like in fanout exchange.
+ * When special characters "*" (star) and "#" (hash) aren't used in bindings, the topic exchange will behave just like a direct one
+ * @author GURJEETB
+ *
+ */
+public class RabbitMqEventConsumer implements EventConsumer {
+	private static Logger log = LoggerFactory.getInstance().getLogger(RabbitMqEventConsumer.class);
+	private static ConnectionFactory factory = new ConnectionFactory();
+	private BlockingQueue<MessageWithOffset> messageQueue;
+
+	private static String BINDING_CONSUME_ALL = "#";
+
+	private final Connection connection;
+	private final Channel channel;
+	private final String queueName;
+	private DeclareOk exchangeInfo;
+	private Long lastDeliveryTag;
+	private long timeout = 5000;
+	private com.rabbitmq.client.AMQP.Queue.DeclareOk queueInfo;
+	
+	/**
+	 * (intended for testing prupose only)
+	 * @param connFactory
+	 */
+    static void setConnectionFactory(ConnectionFactory connFactory) {
+    	factory = connFactory;
+    }
+    
+    /**
+     * (intended for testing prupose only)
+     * @param messageQueue
+     */
+	public void setMessageQueue(BlockingQueue<MessageWithOffset> messageQueue) {
+		this.messageQueue = messageQueue;
+	}
+
+	/**
+	 * Constructor to open a consumer on single host port for a topic exchange with specific queue name which will 
+	 * consume all messages from topic
+	 * @param host
+	 * @param port
+	 * @param userName
+	 * @param password
+	 * @param exchangeName
+	 * @param queueName
+	 * @throws Exception
+	 */
+	public RabbitMqEventConsumer(String host, int port, String userName, String password, String exchangeName, String queueName) throws Exception {
+		this(host, port, userName, password, BuiltinExchangeType.TOPIC.name(), exchangeName, queueName, BINDING_CONSUME_ALL);
+	}
+	
+	/**
+	 * Constructor to open a consumer on single host port for a exchange with specific queue name which will 
+	 * consume all messages from topic
+	 * @param host
+	 * @param port
+	 * @param userName
+	 * @param password
+	 * @param exchangeType  - Supported values - DIRECT, FANOUT, TOPIC, HEADERS
+	 * @param exchangeName
+	 * @param queueName
+	 * @throws Exception
+	 */
+	public RabbitMqEventConsumer(String host, int port, String userName, String password, String exchangeType, String exchangeName, String queueName)  throws Exception {
+		this(host, port, userName, password, exchangeType, exchangeName, queueName, BINDING_CONSUME_ALL);
+	}
+	
+	/**
+	 * Constructor to open a consumer on single host port for a exchange with specific queue name 
+	 * @param host
+	 * @param port
+	 * @param userName
+	 * @param password
+	 * @param exchangeType
+	 * @param exchangeName
+	 * @param queueName
+	 * @param bindingKey - Bind the queue to specific messages only
+	 * @throws Exception
+	 */
+	public RabbitMqEventConsumer(String host, int port, String userName, String password, String exchangeType, String exchangeName, String queueName, String bindingKey)  throws Exception {
+		this(buildMap(host, port), userName, password, BuiltinExchangeType.valueOf(exchangeType), exchangeName, queueName, bindingKey, new HashMap<String, Object>());
+	}
+	
+	/**
+	 * Constructor to open a consumer on multiple host port for a topic exchange with specific queue name which will 
+	 * consume all messages from topic
+	 * @param hostPortMap
+	 * @param userName
+	 * @param password
+	 * @param exchangeName
+	 * @param queueName
+	 * @throws Exception
+	 */
+	public RabbitMqEventConsumer(Map<String, Integer> hostPortMap, String userName, String password, String exchangeName, String queueName) throws Exception {
+		this(hostPortMap, userName, password, BuiltinExchangeType.TOPIC.name(), exchangeName, queueName, BINDING_CONSUME_ALL);
+	}
+	
+	/**
+	 * Constructor to open a consumer on multiple host port for a exchange with specific queue name which will 
+	 * consume all messages from topic
+	 * @param hostPortMap
+	 * @param userName
+	 * @param password
+	 * @param exchangeType  - Supported values - DIRECT, FANOUT, TOPIC, HEADERS
+	 * @param exchangeName
+	 * @param queueName
+	 * @throws Exception
+	 */
+	public RabbitMqEventConsumer(Map<String, Integer> hostPortMap, String userName, String password, String exchangeType, String exchangeName, String queueName)  throws Exception {
+		this(hostPortMap, userName, password, exchangeType, exchangeName, queueName, BINDING_CONSUME_ALL);
+	}
+	
+	/**
+	 * Constructor to open a consumer on multiple host port for a exchange with specific queue name 
+	 * @param hostPortMap
+	 * @param userName
+	 * @param password
+	 * @param exchangeType
+	 * @param exchangeName
+	 * @param queueName
+	 * @param bindingKey  - Bind the queue to specific messages only
+	 * @throws Exception
+	 */
+	public RabbitMqEventConsumer(Map<String, Integer> hostPortMap, String userName, String password, String exchangeType, String exchangeName, String queueName, String bindingKey)  throws Exception {
+		this(hostPortMap, userName, password, BuiltinExchangeType.valueOf(exchangeType), exchangeName, queueName, bindingKey, new HashMap<String, Object>());
+	}		
+	
+	public RabbitMqEventConsumer(Map<String, Integer> hostPortMap, String userName, String password, BuiltinExchangeType exchangeType, String exchangeName, String queueName, String bindingKey, Map<String, Object> exchangeArguments) throws Exception {
+		messageQueue = new ArrayBlockingQueue<>(1000);
+		List<Address> addresses = new ArrayList<Address>();
+		Iterator<String> iter = hostPortMap.keySet().iterator();
+		while (iter.hasNext())
+		{
+			String host = iter.next();
+			int port = hostPortMap.get(host);
+			Address add = new Address(host,port);
+			addresses.add(add);
+		}
+		factory.setUsername(userName);
+		factory.setPassword(password);
+		connection = factory.newConnection(addresses);
+		channel = connection.createChannel();
+		exchangeInfo = channel.exchangeDeclare(exchangeName, exchangeType, true, false, exchangeArguments);
+		this.queueName = queueName;
+		channel.queueDeclare(queueName, true, false, false, null);
+		channel.queueBind(queueName, exchangeName, bindingKey);
+	    String consumerTag = channel.basicConsume(queueName, false, new CallBackConsumer(channel)); //AutoAck is false
+	}
+	
+	public RabbitMqEventConsumer(String host, int port, String userName, String password, String queue) throws Exception {
+		this(buildMap(host, port), userName, password, queue, new HashMap<String, Object>());
+	}
+	
+	public RabbitMqEventConsumer(Map<String, Integer> hostPortMap, String userName, String password, String queue, Map<String, Object> queueArguments) throws Exception {
+		messageQueue = new ArrayBlockingQueue<>(1000);
+		List<Address> addresses = new ArrayList<Address>();
+		Iterator<String> iter = hostPortMap.keySet().iterator();
+		while (iter.hasNext())
+		{
+			String host = iter.next();
+			int port = hostPortMap.get(host);
+			Address add = new Address(host,port);
+			addresses.add(add);
+		}
+		factory.setUsername(userName);
+		factory.setPassword(password);
+		connection = factory.newConnection(addresses);
+		channel = connection.createChannel();
+		this.queueName = queue;
+		queueInfo = channel.queueDeclare(queueName, true, false, false, queueArguments);
+	    String consumerTag = channel.basicConsume(queueName, false, new CallBackConsumer(channel)); //AutoAck is false
+	}
+	
+	private static Map<String, Integer> buildMap(String host, Integer port) {
+		Map<String, Integer> hostPortMap = new HashMap<String, Integer>();
+		hostPortMap.put(host, port);
+		return hostPortMap;
+	}	
+	
+	@Override
+	public Iterable<String> consumeAndCommit() throws Exception {
+		Iterable<String> list = consume();
+		commitOffsets();
+		return list;
+	}
+
+	@Override
+	public Iterable<String> consume() throws Exception {
+		List<String> list = new ArrayList<>();
+		MessageWithOffset record = null;
+		if(messageQueue.peek()!=null) {
+			do
+			{
+				record = messageQueue.poll(1000, TimeUnit.MILLISECONDS);
+				lastDeliveryTag = record.getOffset();
+				list.add(record.getMessage());
+			}while(messageQueue.peek()!=null);
+		}
+		return list;
+	}
+
+	@Override
+	public Iterable<MessageWithOffset> consumeWithOffsets() throws Exception {
+		List<MessageWithOffset> list = new ArrayList<>();
+		MessageWithOffset record = null;
+		if(messageQueue.peek()!=null) {
+			do
+			{
+				record = messageQueue.poll(1000, TimeUnit.MILLISECONDS);
+				lastDeliveryTag = record.getOffset();
+				list.add(record);
+			}while(messageQueue.peek()!=null);
+		}
+        return list;
+	}
+
+	@Override
+	public void commitOffsets() throws Exception {
+		if(lastDeliveryTag != null)
+		{
+			channel.basicAck(lastDeliveryTag, true); //Ack messages upto lastDeliveryTag or offset so that they can be marked
+			lastDeliveryTag = null;
+		}
+	}
+
+	@Override
+	public void commitOffsets(long offset) throws Exception {
+		channel.basicAck(offset, true); //Ack messages upto lastDeliveryTag or offset so that they can be marked
+	}
+	
+	/**
+	 * Closes the channel
+	 * @throws Exception
+	 */
+	public void close() throws Exception {
+		channel.close();
+		connection.close();
+	}
+	
+	class CallBackConsumer extends DefaultConsumer{
+		CallBackConsumer(Channel channel) {
+			super(channel);
+		}
+        @Override
+        public void handleDelivery(String consumerTag, Envelope envelope,
+	                                 AMQP.BasicProperties properties, byte[] body) throws IOException {
+	       String message = new String(body, "UTF-8");
+	       try
+	       {
+	    	   MessageWithOffset record = new MessageWithOffset(envelope.getDeliveryTag(), message);
+	    	   messageQueue.offer(record, timeout, TimeUnit.MILLISECONDS);
+	       }
+	       catch(Exception e)
+	       {
+	    	   log.debug(" Got exception while handling message="+e.getMessage()+" Will be reposting to queue");
+		       channel.basicNack(envelope.getDeliveryTag(), false, true); //Explicit Ack with requeue
+	       }
+	    }
+	}
+}
diff --git a/event-client-rabbitmq/src/main/java/org/onap/aai/event/client/RabbitMqEventPublisher.java b/event-client-rabbitmq/src/main/java/org/onap/aai/event/client/RabbitMqEventPublisher.java
new file mode 100644
index 0000000..a7e0ee3
--- /dev/null
+++ b/event-client-rabbitmq/src/main/java/org/onap/aai/event/client/RabbitMqEventPublisher.java
@@ -0,0 +1,281 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2018 European Software Marketing Ltd.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.aai.event.client;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import org.onap.aai.cl.api.Logger;
+import org.onap.aai.cl.eelf.LoggerFactory;
+import org.onap.aai.event.api.EventPublisher;
+
+import com.rabbitmq.client.AMQP.Exchange.DeclareOk;
+import com.rabbitmq.client.Address;
+import com.rabbitmq.client.BuiltinExchangeType;
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+
+/**
+ * Event bus client publisher wrapper for RabbitMQ
+ * @author GURJEETB
+ *
+ */
+
+public class RabbitMqEventPublisher implements EventPublisher {
+	private static Logger log = LoggerFactory.getInstance().getLogger(RabbitMqEventPublisher.class);
+	private static ConnectionFactory factory = new ConnectionFactory();
+
+	private final Connection connection;
+	private final Channel channel;
+	private final String exchangeName;
+	private final String queueName;
+	private final String routingKey;
+	private DeclareOk exchangeInfo; 
+	private com.rabbitmq.client.AMQP.Queue.DeclareOk queueInfo;
+
+    static void setConnectionFactory(ConnectionFactory connFactory) {
+    	factory = connFactory;
+    }
+	/**
+	 * Constructor for single host port for a topic exchange
+	 * @param host
+	 * @param port
+	 * @param userName
+	 * @param password
+	 * @param exchangeName
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(String host, int port, String userName, String password, String exchangeName) throws Exception {
+		this(host, port, userName, password, BuiltinExchangeType.TOPIC.name(), exchangeName,"");
+	}
+	
+	/**
+	 * Constructor for single host port for a specific exchange type
+	 * @param host
+	 * @param port
+	 * @param userName
+	 * @param password
+	 * @param exchangeType - Supported values - DIRECT, FANOUT, TOPIC, HEADERS
+	 * @param exchangeName
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(String host, int port, String userName, String password, String exchangeType, String exchangeName) throws Exception {
+		this(host,port, userName, password, exchangeType, exchangeName,"");
+	}
+	
+	/**
+	 * Constructor for single host port for a specific exchange type and specific routing key
+	 * @param host
+	 * @param port
+	 * @param userName
+	 * @param password
+	 * @param exchangeType
+	 * @param exchangeName
+	 * @param routingKey
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(String host, int port, String userName, String password, String exchangeType, String exchangeName, String routingKey) throws Exception {
+		this(buildMap(host,port), userName, password, BuiltinExchangeType.valueOf(exchangeType), exchangeName,routingKey, new HashMap<String, Object>());
+	}
+	
+	/**
+	 * Constructor for multiple host and port for a topic exchange
+	 * @param hostPortMap
+	 * @param userName
+	 * @param password
+	 * @param exchangeName
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(Map<String, Integer> hostPortMap, String userName, String password, String exchangeName) throws Exception {
+		this(hostPortMap, userName, password, BuiltinExchangeType.TOPIC.name(), exchangeName,"");
+	}
+	
+	/**
+	 * Constructor for multiple host port for a specific exchange type
+	 * @param hostPortMap
+	 * @param userName
+	 * @param password
+	 * @param exchangeType - Supported values - DIRECT, FANOUT, TOPIC, HEADERS
+	 * @param exchangeName
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(Map<String, Integer> hostPortMap, String userName, String password, String exchangeType, String exchangeName) throws Exception {
+		this(hostPortMap, userName, password, exchangeType , exchangeName,"");
+	}
+	
+	/**
+	 * Constructor for multiple host port for a specific exchange type and specific routing key
+	 * @param hostPortMap
+	 * @param userName
+	 * @param password
+	 * @param exchangeType
+	 * @param exchangeName
+	 * @param routingKey
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(Map<String, Integer> hostPortMap, String userName, String password, String exchangeType, String exchangeName, String routingKey) throws Exception {
+		this(hostPortMap, userName, password, BuiltinExchangeType.valueOf(exchangeType), exchangeName,routingKey, new HashMap<String, Object>());
+	}
+
+	public RabbitMqEventPublisher(Map<String, Integer> hostPortMap, String userName, String password, BuiltinExchangeType exchangeType, String exchangeName, String routingKey, Map<String, Object> exchangeArguments) throws Exception {
+		List<Address> addresses = new ArrayList<Address>();
+		Iterator<String> iter = hostPortMap.keySet().iterator();
+		while (iter.hasNext())
+		{
+			String host = iter.next();
+			int port = hostPortMap.get(host);
+			Address add = new Address(host,port);
+			addresses.add(add);
+		}
+		factory.setUsername(userName);
+		factory.setPassword(password);
+		connection = factory.newConnection(addresses);
+		channel = connection.createChannel();
+		this.exchangeName = exchangeName;
+		exchangeInfo = channel.exchangeDeclare(exchangeName, exchangeType, true, false, exchangeArguments); //Durable exchange and non delete
+		queueName = null;
+		this.routingKey=routingKey;
+	}
+	
+	/**
+	 * Constructor for single host port for a queue connection
+	 * @param host
+	 * @param port
+	 * @param userName
+	 * @param password
+	 * @param queue
+	 * @param queueArguments
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(String host, int port, String userName, String password, String queue, Map<String, Object> queueArguments) throws Exception {
+		this(buildMap(host, port), userName, password, queue, queueArguments);
+	}
+	
+	/**
+	 * Constructor for multiple host port for a queue connection
+	 * @param hostPortMap
+	 * @param userName
+	 * @param password
+	 * @param queue
+	 * @param queueArguments
+	 * @throws Exception
+	 */
+	public RabbitMqEventPublisher(Map<String, Integer> hostPortMap, String userName, String password, String queue, Map<String, Object> queueArguments) throws Exception {
+		List<Address> addresses = new ArrayList<Address>();
+		Iterator<String> iter = hostPortMap.keySet().iterator();
+		while (iter.hasNext())
+		{
+			String host = iter.next();
+			int port = hostPortMap.get(host);
+			Address add = new Address(host,port);
+			addresses.add(add);
+		}
+		factory.setUsername(userName);
+		factory.setPassword(password);
+		connection = factory.newConnection(addresses);
+		channel = connection.createChannel();
+		exchangeName = "";
+		routingKey=queue;
+		this.queueName = queue;
+		queueInfo = channel.queueDeclare(queueName, true, false, false, queueArguments); //Durable, non exclusive and non auto delete queue
+	}
+	
+	private static Map<String, Integer> buildMap(String host, Integer port) {
+		Map<String, Integer> hostPortMap = new HashMap<String, Integer>();
+		hostPortMap.put(host, port);
+		return hostPortMap;
+	}
+
+	@Override
+	public void close() throws Exception {
+		channel.close();
+		connection.close();
+	}
+
+	@Override
+	public void sendAsync(String message) throws Exception {
+		sendSync(message);
+	}
+
+	@Override
+	public void sendAsync(Collection<String> messages) throws Exception {
+		sendSync(messages);
+	}
+
+	@Override
+	public void sendAsync(String routingParam, String message) throws Exception {
+		sendSync(routingParam, message);
+	}
+
+	@Override
+	public void sendAsync(String routingParam, Collection<String> messages) throws Exception {
+		sendSync(routingParam, messages);
+	}
+
+	@Override
+	public int sendSync(String message) throws Exception {
+		channel.basicPublish(exchangeName, routingKey, null, message.getBytes());
+		log.debug(" [x] Sent '" + message + "'");		
+		return 1;
+	}
+
+	@Override
+	public int sendSync(Collection<String> messages) throws Exception {
+		log.debug("Publishing" + messages.size() + " messages ");
+        for (String message : messages) {
+            sendSync(message);
+        }
+        return messages.size();		
+	}
+
+	@Override
+	public int sendSync(String routingParam, String message) throws Exception {
+		//Can only route if exchange is setup
+		if(queueName == null) {
+			channel.basicPublish(exchangeName, routingParam, null, message.getBytes());
+			return 1;
+		}
+		else
+			throw new UnsupportedOperationException("Routing without exchange");
+			
+	}
+
+	@Override
+	public int sendSync(String routingParam, Collection<String> messages) throws Exception {
+		log.debug("Publishing" + messages.size() + " messages ");
+		//Can only route if exchange is setup
+		if(queueName == null) {
+	        for (String message : messages) {
+	            sendSync(routingParam, message);
+	        }
+	        return messages.size();
+		}
+		else
+			throw new UnsupportedOperationException("Routing without exchange");
+	}
+
+}
diff --git a/event-client-rabbitmq/src/test/java/org/onap/aai/event/client/TestRabbitMqConsumer.java b/event-client-rabbitmq/src/test/java/org/onap/aai/event/client/TestRabbitMqConsumer.java
new file mode 100644
index 0000000..df4c54b
--- /dev/null
+++ b/event-client-rabbitmq/src/test/java/org/onap/aai/event/client/TestRabbitMqConsumer.java
@@ -0,0 +1,151 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2018 European Software Marketing Ltd.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.aai.event.client;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.BlockingQueue;
+import java.util.concurrent.TimeUnit;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+import org.onap.aai.event.api.MessageWithOffset;
+
+import com.rabbitmq.client.Address;
+import com.rabbitmq.client.BuiltinExchangeType;
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+import com.rabbitmq.client.Consumer;
+import com.rabbitmq.client.AMQP.Exchange.DeclareOk;
+
+@RunWith(MockitoJUnitRunner.class)
+public class TestRabbitMqConsumer {
+    @Mock
+    public ConnectionFactory mockConnectionFactory;
+
+    @Mock
+    public Connection mockConnection;
+
+    @Mock
+    public Channel mockChannel;
+
+    @Mock
+    public DeclareOk mockDeclareOK;
+
+    @Mock
+    BlockingQueue<MessageWithOffset> mqueue;
+
+    BuiltinExchangeType topicEx = BuiltinExchangeType.TOPIC;
+    TimeUnit unit = TimeUnit.MILLISECONDS;
+    Map<String, Integer> hostPortMap = new HashMap<String, Integer>();
+
+    @Before
+    public void init() throws Exception {
+    	RabbitMqEventConsumer.setConnectionFactory(mockConnectionFactory);
+    }
+
+    @Test
+    public void testConstructor() throws Exception {
+       	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+        Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+       	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+       	Mockito.when(mockChannel.basicConsume(Mockito.any(), Mockito.anyBoolean(), Mockito.any(Consumer.class))).thenReturn(Mockito.anyString());
+        new RabbitMqEventConsumer("hosts", 0, "userName", "password", "exchangeName", "queueName");
+        new RabbitMqEventConsumer("hosts", 0, "userName", "password", BuiltinExchangeType.DIRECT.name(), "exchangeName", "queueName");
+        new RabbitMqEventConsumer(hostPortMap, "userName", "password", "exchangeName", "queueName");
+        new RabbitMqEventConsumer(hostPortMap, "userName", "password", BuiltinExchangeType.DIRECT.name(), "exchangeName", "queueName");
+        new RabbitMqEventConsumer("hosts", 0, "userName", "password", "queue");
+    }
+
+    @Test
+    public void consumeZeroRecords() throws Exception {
+       	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+       	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+       	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+       	Mockito.when(mockChannel.basicConsume(Mockito.any(), Mockito.anyBoolean(), Mockito.any(Consumer.class))).thenReturn(Mockito.anyString());
+       	RabbitMqEventConsumer consumer = new RabbitMqEventConsumer("hosts", 0, "userName", "password", "exchangeName", "queueName");
+        consumer.consume();
+        consumer.consumeWithOffsets();
+        consumer.consumeAndCommit();
+        consumer.close();
+    }
+    
+    @Test
+    public void commitOffsets() throws Exception {
+       	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+       	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+       	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+       	Mockito.when(mockChannel.basicConsume(Mockito.any(), Mockito.anyBoolean(), Mockito.any(Consumer.class))).thenReturn(Mockito.anyString());
+       	RabbitMqEventConsumer consumer = new RabbitMqEventConsumer("hosts", 0, "userName", "password", "exchangeName", "queueName");
+       	consumer.commitOffsets();
+        consumer.commitOffsets(0L);
+        consumer.close();
+    }
+    
+    @Test
+    public void consumeMultipleRecords() throws Exception {
+       	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+       	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+       	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+       	Mockito.when(mockChannel.basicConsume(Mockito.any(), Mockito.anyBoolean(), Mockito.any(Consumer.class))).thenReturn(Mockito.anyString());
+       	List<MessageWithOffset> records = buildTestMessages(2);
+       	mqueue = new ArrayBlockingQueue<>(2);
+       	mqueue.addAll(records);
+       	RabbitMqEventConsumer consumer = new RabbitMqEventConsumer("hosts", 0, "userName", "password", "exchangeName", "queueName");
+       	consumer.setMessageQueue(mqueue);
+       	consumer.consumeAndCommit();
+       	consumer.close();
+    }
+    
+    @Test
+    public void consumeWithOffSetsMultipleRecords() throws Exception {
+       	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+       	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+       	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+       	Mockito.when(mockChannel.basicConsume(Mockito.any(), Mockito.anyBoolean(), Mockito.any(Consumer.class))).thenReturn(Mockito.anyString());
+       	List<MessageWithOffset> records = buildTestMessages(2);
+       	mqueue = new ArrayBlockingQueue<>(2);
+       	mqueue.addAll(records);
+       	RabbitMqEventConsumer consumer = new RabbitMqEventConsumer("hosts", 0, "userName", "password", "exchangeName", "queueName");
+       	consumer.setMessageQueue(mqueue);
+       	consumer.consumeWithOffsets();
+       	consumer.commitOffsets();
+        consumer.close();
+    }
+    
+    private List<MessageWithOffset> buildTestMessages(int nbrOfMessages) {
+        List<MessageWithOffset> msgList = new ArrayList<MessageWithOffset>();
+        for(int i=0;i<nbrOfMessages;i++) {
+            MessageWithOffset message = new MessageWithOffset(i,"Message:"+i);
+            msgList.add(message);
+        }
+        return msgList;
+    }
+}
diff --git a/event-client-rabbitmq/src/test/java/org/onap/aai/event/client/TestRabbitMqPublisher.java b/event-client-rabbitmq/src/test/java/org/onap/aai/event/client/TestRabbitMqPublisher.java
new file mode 100644
index 0000000..e41126f
--- /dev/null
+++ b/event-client-rabbitmq/src/test/java/org/onap/aai/event/client/TestRabbitMqPublisher.java
@@ -0,0 +1,123 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2018 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2018 European Software Marketing Ltd.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.aai.event.client;
+
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.runners.MockitoJUnitRunner;
+
+import com.rabbitmq.client.AMQP.Exchange.DeclareOk;
+import com.rabbitmq.client.Address;
+import com.rabbitmq.client.BuiltinExchangeType;
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+
+@RunWith(MockitoJUnitRunner.class)
+public class TestRabbitMqPublisher {
+    @Mock
+    public ConnectionFactory mockConnectionFactory;
+
+    @Mock
+    public Connection mockConnection;
+
+    @Mock
+    public Channel mockChannel;
+
+    @Mock
+    public DeclareOk mockDeclareOK;
+
+    BuiltinExchangeType topicEx = BuiltinExchangeType.TOPIC;
+    Map<String, Integer> hostPortMap = new HashMap<String, Integer>();
+
+    @Before
+    public void init() throws Exception {
+    	RabbitMqEventPublisher.setConnectionFactory(mockConnectionFactory);
+    }
+
+    @Test
+    public void testConstructors() throws Exception {
+    	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+    	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+       Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+        new RabbitMqEventPublisher("hosts", 0, "userName", "password", "exchangeName");
+        new RabbitMqEventPublisher("hosts", 0, "userName", "password", BuiltinExchangeType.DIRECT.name(), "exchangeName");
+        new RabbitMqEventPublisher(hostPortMap, "userName", "password", "exchangeName");
+        new RabbitMqEventPublisher(hostPortMap, "userName", "password", BuiltinExchangeType.DIRECT.name(), "exchangeName");
+        new RabbitMqEventPublisher("hosts", 0, "userName", "password", "queueName",new HashMap<String, Object>());
+    }
+    
+
+    @Test
+    public void publishSynchronous() throws Exception {
+    	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+    	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+       	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+       	RabbitMqEventPublisher publisher = new RabbitMqEventPublisher("hosts", 0, "userName", "password", "exchangeName");
+       	publisher.sendSync("");
+       	publisher.sendSync(Arrays.asList(""));
+       	publisher.sendSync("key", "");
+        publisher.sendSync("key", Arrays.asList(""));
+        publisher.close();
+    }
+
+    @Test
+    public void publishAsynchronous() throws Exception {
+    	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+    	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+    	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+    	RabbitMqEventPublisher publisher = new RabbitMqEventPublisher("hosts", 0, "userName", "password", "exchangeName");
+    	publisher.sendAsync("");
+    	publisher.sendAsync(Arrays.asList(""));
+    	publisher.sendAsync("key", "");
+    	publisher.sendAsync("key", Arrays.asList(""));
+    	publisher.close();
+    }
+    @Test(expected = UnsupportedOperationException.class)
+    public void UnsupportedMessageTest() throws Exception {
+    	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+    	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+    	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+    	RabbitMqEventPublisher publisher = new RabbitMqEventPublisher("hosts", 0, "userName", "password", "queueName",new HashMap<String, Object>());
+    	publisher.sendSync("key", "");
+    	publisher.sendSync("key", Arrays.asList(""));
+    	publisher.close();
+    }
+    
+    @Test(expected = UnsupportedOperationException.class)
+    public void UnSupportedMultiMessageTests() throws Exception {
+    	Mockito.when(mockConnectionFactory.newConnection(Mockito.anyListOf(Address.class))).thenReturn(mockConnection);
+    	Mockito.when(mockConnection.createChannel()).thenReturn(mockChannel);
+    	Mockito.when(mockChannel.exchangeDeclare(Mockito.any(), Mockito.eq(topicEx), Mockito.anyBoolean(), Mockito.anyBoolean(), Mockito.anyMap())).thenReturn(mockDeclareOK);
+    	RabbitMqEventPublisher publisher = new RabbitMqEventPublisher("hosts", 0, "userName", "password", "queueName",new HashMap<String, Object>());
+    	publisher.sendSync("key", Arrays.asList(""));
+    	publisher.close();
+    }
+    
+}