DMAAP-MR - Merge MR repos

[dmaap/messagerouter/messageservice.git] / src / main / java / org / onap / dmaap / dmf / mr / backends / memory / MemoryConsumerFactory.java

diff --git a/src/main/java/org/onap/dmaap/dmf/mr/backends/memory/MemoryConsumerFactory.java b/src/main/java/org/onap/dmaap/dmf/mr/backends/memory/MemoryConsumerFactory.java
new file mode 100644 (file)
index 0000000..f833eed
--- /dev/null
+++ b/src/main/java/org/onap/dmaap/dmf/mr/backends/memory/MemoryConsumerFactory.java
@@ -0,0 +1,185 @@
+/*******************************************************************************
+ *  ============LICENSE_START=======================================================
+ *  org.onap.dmaap
+ *  ================================================================================
+ *  Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ *  ================================================================================
+ *  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=========================================================
+ *  
+ *  ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ *  
+ *******************************************************************************/
+package org.onap.dmaap.dmf.mr.backends.memory;
+
+import org.onap.dmaap.dmf.mr.CambriaApiException;
+import org.onap.dmaap.dmf.mr.backends.Consumer;
+import org.onap.dmaap.dmf.mr.backends.ConsumerFactory;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+
+/**
+ * 
+ * @author anowarul.islam
+ *
+ */
+public class MemoryConsumerFactory implements ConsumerFactory
+{
+
+       private final MemoryQueue fQueue;
+       
+       /**
+        * 
+        * Initializing constructor
+        * @param q
+        */
+       public MemoryConsumerFactory ( MemoryQueue q )
+       {
+               fQueue = q;
+       }
+
+       /**
+        * 
+        * @param topic
+        * @param consumerGroupId
+        * @param clientId
+        * @param timeoutMs
+        * @return Consumer
+        */
+       @Override
+       public Consumer getConsumerFor ( String topic, String consumerGroupId, String clientId, int timeoutMs, String remotehost )
+       {
+               return new MemoryConsumer ( topic, consumerGroupId );
+       }
+
+       /**
+        * 
+        * Define nested inner class
+        *
+        */
+       private class MemoryConsumer implements Consumer
+       {
+
+               private final String fTopic;
+               private final String fConsumer;
+               private final long fCreateMs;
+               private long fLastAccessMs;
+               
+               /**
+                * 
+                * Initializing MemoryConsumer constructor 
+                * @param topic
+                * @param consumer
+                * 
+                */
+               public MemoryConsumer ( String topic, String consumer )
+               {
+                       fTopic = topic;
+                       fConsumer = consumer;
+                       fCreateMs = System.currentTimeMillis ();
+                       fLastAccessMs = fCreateMs;
+               }
+
+               @Override
+               /**
+                * 
+                * return consumer details  
+                */
+               public Message nextMessage ()
+               {
+                       return fQueue.get ( fTopic, fConsumer );
+               }
+
+               @Override
+               public boolean close() {
+                       //Nothing to close/clean up.
+                       return true;
+               }
+               /**
+                * 
+                */
+               public void commitOffsets()
+               {
+                       // ignoring this aspect
+               }
+               /**
+                * get offset
+                */
+               public long getOffset()
+               {
+                       return 0;
+               }
+
+               @Override
+               /**
+                * get consumer topic name
+                */
+               public String getName ()
+               {
+                       return fTopic + "/" + fConsumer;
+               }
+
+               @Override
+               public long getCreateTimeMs ()
+               {
+                       return fCreateMs;
+               }
+
+               @Override
+               public long getLastAccessMs ()
+               {
+                       return fLastAccessMs;
+               }
+
+               
+
+               @Override
+               public void setOffset(long offset) {
+                       // TODO Auto-generated method stub
+                       
+               }
+
+               
+       }
+
+       @Override
+       public void destroyConsumer(String topic, String consumerGroupId,
+                       String clientId) {
+               //No cache for memory consumers, so NOOP
+       }
+
+       @Override
+       public void dropCache ()
+       {
+               // nothing to do - there's no cache here
+       }
+
+       @Override
+       /**
+        * @return ArrayList<MemoryConsumer>
+        */
+       public Collection<? extends Consumer> getConsumers ()
+       {
+               return new ArrayList<> ();
+       }
+
+       @Override
+       public HashMap getConsumerForKafka011(String topic, String consumerGroupName, String consumerId, int timeoutMs,
+                       String remotehost) throws UnavailableException, CambriaApiException {
+               // TODO Auto-generated method stub
+               return null;
+       }
+
+       
+}