1 files changed, 132 insertions, 0 deletions
diff --git a/qpid/java/client/src/main/java/org/apache/qpid/client/TopicSubscriberAdaptor.java b/qpid/java/client/src/main/java/org/apache/qpid/client/TopicSubscriberAdaptor.java
new file mode 100644
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--- /dev/null
+++ b/qpid/java/client/src/main/java/org/apache/qpid/client/TopicSubscriberAdaptor.java
@@ -0,0 +1,132 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.qpid.client;
+
+import org.apache.qpid.AMQException;
+
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.MessageListener;
+import javax.jms.Topic;
+import javax.jms.TopicSubscriber;
+
+/**
+ * Wraps a MessageConsumer to fulfill the extended TopicSubscriber contract
+ *
+ */
+class TopicSubscriberAdaptor<C extends BasicMessageConsumer> implements TopicSubscriber
+{
+    private final Topic _topic;
+    private final C _consumer;
+    private final boolean _noLocal;
+
+    TopicSubscriberAdaptor(Topic topic, C consumer, boolean noLocal)
+    {
+        _topic = topic;
+        _consumer = consumer;
+        _noLocal = noLocal;
+    }
+    
+    TopicSubscriberAdaptor(Topic topic, C consumer)
+    {
+        this(topic, consumer, consumer.isNoLocal());
+    }
+    
+    public Topic getTopic() throws JMSException
+    {
+    	checkPreConditions();
+        return _topic;
+    }
+
+    public boolean getNoLocal() throws JMSException
+    {
+    	checkPreConditions();
+        return _noLocal;
+    }
+
+    public String getMessageSelector() throws JMSException
+    {
+    	checkPreConditions();
+        return _consumer.getMessageSelector();
+    }
+
+    public MessageListener getMessageListener() throws JMSException
+    {
+    	checkPreConditions();
+        return _consumer.getMessageListener();
+    }
+
+    public void setMessageListener(MessageListener messageListener) throws JMSException
+    {
+    	checkPreConditions();
+        _consumer.setMessageListener(messageListener);
+    }
+
+    public Message receive() throws JMSException
+    {
+    	checkPreConditions();
+        return _consumer.receive();
+    }
+
+    public Message receive(long l) throws JMSException
+    {
+        return _consumer.receive(l);
+    }
+
+    public Message receiveNoWait() throws JMSException
+    {
+    	checkPreConditions();
+        return _consumer.receiveNoWait();
+    }
+
+    public void close() throws JMSException
+    {
+        _consumer.close();
+    }
+    
+    private void checkPreConditions() throws javax.jms.IllegalStateException{
+    	C msgConsumer = _consumer;
+    	
+    	if (msgConsumer.isClosed() ){
+			throw new javax.jms.IllegalStateException("Consumer is closed");
+		}
+		
+		if(_topic == null){
+			throw new UnsupportedOperationException("Topic is null");
+		}
+		
+		AMQSession session = msgConsumer.getSession();
+		
+		if(session == null || session.isClosed()){
+			throw new javax.jms.IllegalStateException("Invalid Session");
+		}
+	}
+
+    C getMessageConsumer()
+    {
+        return _consumer;
+    }
+
+    public void addBindingKey(Topic topic, String bindingKey) throws AMQException
+    {
+        _consumer.addBindingKey((AMQDestination) topic, bindingKey);
+    }
+}