1 files changed, 139 insertions, 0 deletions
diff --git a/qpid/java/jca/src/main/java/org/apache/qpid/ra/QpidRAQueueBrowser.java b/qpid/java/jca/src/main/java/org/apache/qpid/ra/QpidRAQueueBrowser.java
new file mode 100644
index 0000000000..bcd2d3b63c
--- /dev/null
+++ b/qpid/java/jca/src/main/java/org/apache/qpid/ra/QpidRAQueueBrowser.java
@@ -0,0 +1,139 @@
+/*
+ *
+ * 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.ra;
+
+import java.util.Enumeration;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import javax.jms.JMSException;
+import javax.jms.Queue;
+import javax.jms.QueueBrowser;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * QpidRAQueueBrowser.
+ *
+ */
+public class QpidRAQueueBrowser implements QueueBrowser
+{
+   /** The logger */
+   private static final Logger _log = LoggerFactory.getLogger(QpidRAQueueBrowser.class);
+
+   /** The wrapped queue browser */
+   protected QueueBrowser _browser;
+
+   /** The session for this consumer */
+   protected QpidRASessionImpl _session;
+
+   /** The closed flag */
+   private AtomicBoolean _isClosed = new AtomicBoolean();
+
+   /**
+    * Create a new wrapper
+    * @param browser the browser
+    * @param session the session
+    */
+   public QpidRAQueueBrowser(final QueueBrowser browser, final QpidRASessionImpl session)
+   {
+      _browser = browser;
+      _session = session;
+
+      if (_log.isTraceEnabled())
+      {
+         _log.trace("new QpidRAQueueBrowser " + this +
+                                            " browser=" +
+                                            Util.asString(browser) +
+                                            " session=" +
+                                            session);
+      }
+   }
+
+   /**
+    * Close
+    * @exception JMSException Thrown if an error occurs
+    */
+   public void close() throws JMSException
+   {
+      if (_log.isTraceEnabled())
+      {
+         _log.trace("close " + this);
+      }
+
+      if (!_isClosed.getAndSet(true))
+      {
+         try
+         {
+            _browser.close();
+         }
+         finally
+         {
+            _session.removeQueueBrowser(this);
+         }
+      }
+   }
+
+   /**
+    * Get the queue associated with this browser.
+    * @return the associated queue.
+    */
+   public Queue getQueue()
+      throws JMSException
+   {
+      return _browser.getQueue();
+   }
+
+   /**
+    * Get the message selector associated with this browser.
+    * @return the associated message selector.
+    */
+   public String getMessageSelector()
+      throws JMSException
+   {
+      return _browser.getMessageSelector();
+   }
+
+   /**
+    * Get an enumeration for the current browser.
+    * @return The enumeration.
+    */
+   public Enumeration getEnumeration()
+      throws JMSException
+   {
+      if (_log.isTraceEnabled())
+      {
+         _log.trace("getEnumeration " + this + " browser=" + Util.asString(_browser));
+      }
+
+      _session.lock();
+      try
+      {
+         _session.checkState();
+         return _browser.getEnumeration();
+      }
+      finally
+      {
+         _session.unlock();
+      }
+   }
+}