src/share/jaxws_classes/com/sun/xml/internal/ws/streaming/PrefixFactoryImpl.java

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1 /*
2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.xml.internal.ws.streaming;
27
28 import java.util.HashMap;
29 import java.util.Map;
30
31 /**
32 * <p> A prefix factory that caches the prefixes it creates. </p>
33 *
34 * @author WS Development Team
35 */
36 public class PrefixFactoryImpl implements PrefixFactory {
37
38 public PrefixFactoryImpl(String base) {
39 _base = base;
40 _next = 1;
41 }
42
43 public String getPrefix(String uri) {
44 String prefix = null;
45
46 if (_cachedUriToPrefixMap == null) {
47 _cachedUriToPrefixMap = new HashMap();
48 } else {
49 prefix = (String) _cachedUriToPrefixMap.get(uri);
50 }
51
52 if (prefix == null) {
53 prefix = _base + Integer.toString(_next++);
54 _cachedUriToPrefixMap.put(uri, prefix);
55 }
56
57 return prefix;
58 }
59
60 private String _base;
61 private int _next;
62 private Map _cachedUriToPrefixMap;
63 }

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