01 package org.apache.qpid.server.exchange.headers;
02
03 import org.apache.qpid.framing.AMQShortString;
04
05 import java.util.Map;
06 import java.util.HashMap;
07
08 /*
09 *
10 * Licensed to the Apache Software Foundation (ASF) under one
11 * or more contributor license agreements. See the NOTICE file
12 * distributed with this work for additional information
13 * regarding copyright ownership. The ASF licenses this file
14 * to you under the Apache License, Version 2.0 (the
15 * "License"); you may not use this file except in compliance
16 * with the License. You may obtain a copy of the License at
17 *
18 * http://www.apache.org/licenses/LICENSE-2.0
19 *
20 * Unless required by applicable law or agreed to in writing,
21 * software distributed under the License is distributed on an
22 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
23 * KIND, either express or implied. See the License for the
24 * specific language governing permissions and limitations
25 * under the License.
26 *
27 */
28 public class HeaderKeyDictionary
29 {
30
31 private final Map<AMQShortString, HeaderKey> _dictionary = new HashMap<AMQShortString, HeaderKey>();
32
33
34 public HeaderKey get(final AMQShortString key)
35 {
36 HeaderKey headerKey = _dictionary.get(key);
37 return headerKey == null ? HeaderKey.UNKNOWN : headerKey;
38 }
39
40 public HeaderKey getOrCreate(final AMQShortString key)
41 {
42 HeaderKey headerKey = _dictionary.get(key);
43 if(headerKey == null)
44 {
45 headerKey = new HeaderKey(key);
46 _dictionary.put(key, headerKey);
47 }
48 return headerKey;
49 }
50 }
|