1 files changed, 63 insertions, 0 deletions
diff --git a/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicWordDictionary.java b/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicWordDictionary.java
new file mode 100644
index 0000000000..65a0cd3107
--- /dev/null
+++ b/qpid/java/broker/src/main/java/org/apache/qpid/server/exchange/topic/TopicWordDictionary.java
@@ -0,0 +1,63 @@
+package org.apache.qpid.server.exchange.topic;
+
+import org.apache.qpid.framing.AMQShortString;
+
+import java.util.concurrent.ConcurrentHashMap;
+
+/*
+*
+* 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 TopicWordDictionary
+{
+    private final ConcurrentHashMap<AMQShortString,TopicWord> _dictionary =
+            new ConcurrentHashMap<AMQShortString,TopicWord>();
+
+
+
+    public TopicWordDictionary()
+    {
+        _dictionary.put(new AMQShortString("*"), TopicWord.ANY_WORD);
+        _dictionary.put(new AMQShortString("#"), TopicWord.WILDCARD_WORD);
+    }
+
+
+
+
+    public TopicWord getOrCreateWord(AMQShortString name)
+    {
+        TopicWord word = _dictionary.putIfAbsent(name, new TopicWord(name));
+        if(word == null)
+        {
+            word = _dictionary.get(name);
+        }
+        return word;
+    }
+
+
+    public TopicWord getWord(AMQShortString name)
+    {
+        TopicWord word = _dictionary.get(name);
+        if(word == null)
+        {
+            word = TopicWord.ANY_WORD;
+        }
+        return word;
+    }
+}