1 files changed, 50 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/headers/HeaderKeyDictionary.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/headers/HeaderKeyDictionary.java
new file mode 100644
index 0000000000..7be99a88c9
--- /dev/null
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/headers/HeaderKeyDictionary.java
@@ -0,0 +1,50 @@
+package org.apache.qpid.server.exchange.headers;
+
+import org.apache.qpid.framing.AMQShortString;
+
+import java.util.Map;
+import java.util.HashMap;
+
+/*
+*
+* 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.
+*
+*/
+public class HeaderKeyDictionary
+{
+
+    private final Map<AMQShortString, HeaderKey> _dictionary = new HashMap<AMQShortString, HeaderKey>();
+
+
+    public HeaderKey get(final AMQShortString key)
+    {
+        HeaderKey headerKey = _dictionary.get(key);
+        return headerKey == null ? HeaderKey.UNKNOWN : headerKey;
+    }
+
+    public HeaderKey getOrCreate(final AMQShortString key)
+    {
+        HeaderKey headerKey = _dictionary.get(key);
+        if(headerKey == null)
+        {
+            headerKey = new HeaderKey(key);
+            _dictionary.put(key, headerKey);
+        }
+        return headerKey;
+    }
+}