1 files changed, 57 insertions, 0 deletions
diff --git a/qpid/java/management/console/src/main/java/org/apache/qpid/console/SequenceManager.java b/qpid/java/management/console/src/main/java/org/apache/qpid/console/SequenceManager.java
new file mode 100644
index 0000000000..4c5fcc7355
--- /dev/null
+++ b/qpid/java/management/console/src/main/java/org/apache/qpid/console/SequenceManager.java
@@ -0,0 +1,57 @@
+/*
+ *
+ * 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.console;
+
+import java.util.HashMap;
+
+public class SequenceManager
+{
+    private long sequence = 0;
+    private HashMap<Long, Object> pending = new HashMap<Long, Object>();
+    private Object lockObject = new Object();
+
+    public SequenceManager()
+    {
+    }
+
+    public Object release(long seq)
+    {
+        Object returnValue = null;
+        synchronized (lockObject)
+        {
+            returnValue = pending.get(seq);
+            pending.remove(seq);
+        }
+        return returnValue;
+    }
+
+    public long reserve(Object data)
+    {
+        long returnValue = 0;
+        synchronized (lockObject)
+        {
+            returnValue = sequence;
+            sequence += 1;
+            pending.put(returnValue, data);
+        }
+        return returnValue;
+    }
+}
+\ No newline at end of file