1 files changed, 105 insertions, 0 deletions
diff --git a/qpid/java/client/example/src/main/java/org/apache/qpid/example/publisher/MonitorPublisher.java b/qpid/java/client/example/src/main/java/org/apache/qpid/example/publisher/MonitorPublisher.java
new file mode 100644
index 0000000000..750f57d9dc
--- /dev/null
+++ b/qpid/java/client/example/src/main/java/org/apache/qpid/example/publisher/MonitorPublisher.java
@@ -0,0 +1,105 @@
+/*
+ * 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.example.publisher;
+
+import org.apache.qpid.client.BasicMessageProducer;
+import org.slf4j.LoggerFactory;
+import org.slf4j.Logger;
+
+import javax.jms.DeliveryMode;
+import javax.jms.JMSException;
+import javax.jms.Message;
+import javax.jms.Session;
+
+/**
+ * Subclass of Publisher which uses QPID functionality to send a heartbeat message Note immediate flag not available via
+ * JMS MessageProducer
+ */
+public class MonitorPublisher extends Publisher
+{
+
+    private static final Logger _log = LoggerFactory.getLogger(Publisher.class);
+
+    BasicMessageProducer _producer;
+
+    public MonitorPublisher()
+    {
+        super();
+    }
+
+    /*
+    * Publishes a message using given details
+    */
+    public boolean sendMessage(Session session, Message message, int deliveryMode,
+                                        boolean immediate, boolean commit) throws UndeliveredMessageException
+    {
+        try
+        {
+            _producer = (BasicMessageProducer) session.createProducer(_destination);
+
+            _producer.send(message, deliveryMode, immediate);
+
+            if (commit)
+            {
+                //commit the message send and close the transaction
+                _session.commit();
+            }
+
+        }
+        catch (JMSException e)
+        {
+            //Have to assume our commit failed but do not rollback here as channel closed
+            _log.error("JMSException", e);
+            e.printStackTrace();
+            throw new UndeliveredMessageException("Cannot deliver immediate message", e);
+        }
+
+        _log.info(_name + " finished sending message: " + message);
+        return true;
+    }
+
+    /*
+    * Publishes a non-persistent message using transacted session
+    */
+    public boolean sendImmediateMessage(Message message) throws UndeliveredMessageException
+    {
+        try
+        {
+            _producer = (BasicMessageProducer) _session.createProducer(_destination);
+
+            //Send message via our producer which is not persistent and is immediate
+            //NB: not available via jms interface MessageProducer
+            _producer.send(message, DeliveryMode.NON_PERSISTENT, true);
+
+            //commit the message send and close the transaction
+            _session.commit();
+
+        }
+        catch (JMSException e)
+        {
+            //Have to assume our commit failed but do not rollback here as channel closed
+            _log.error("JMSException", e);
+            e.printStackTrace();
+            throw new UndeliveredMessageException("Cannot deliver immediate message", e);
+        }
+
+        _log.info(_name + " finished sending message: " + message);
+        return true;
+    }
+}