01: /*
02: ******************************************************************
03: Copyright (c) 2001, Jeff Martin, Tim Bacon
04: All rights reserved.
05:
06: Redistribution and use in source and binary forms, with or without
07: modification, are permitted provided that the following conditions
08: are met:
09:
10: * Redistributions of source code must retain the above copyright
11: notice, this list of conditions and the following disclaimer.
12: * Redistributions in binary form must reproduce the above
13: copyright notice, this list of conditions and the following
14: disclaimer in the documentation and/or other materials provided
15: with the distribution.
16: * Neither the name of the xmlunit.sourceforge.net nor the names
17: of its contributors may be used to endorse or promote products
18: derived from this software without specific prior written
19: permission.
20:
21: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22: "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23: LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24: FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25: COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26: INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27: BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28: LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29: CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31: ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32: POSSIBILITY OF SUCH DAMAGE.
33:
34: ******************************************************************
35: */
36:
37: package org.custommonkey.xmlunit;
38:
39: import java.util.Collections;
40: import java.util.HashMap;
41: import java.util.Iterator;
42: import java.util.Map;
43:
44: /**
45: * Implementation of NamespaceContext that's backed by a map.
46: */
47: public class SimpleNamespaceContext implements NamespaceContext {
48: /* prefix -> NS URI */
49: private final Map/*<String, String>*/prefixMap;
50:
51: /**
52: * An empty context containing no prefixes at all.
53: */
54: public static final SimpleNamespaceContext EMPTY_CONTEXT = new SimpleNamespaceContext(
55: Collections.EMPTY_MAP);
56:
57: /**
58: * Creates a NamespaceContext backed by the given map.
59: *
60: * <p>Copies the map, changes made to the given map after calling
61: * the constructor are not reflected into the
62: * NamespaceContext.</p>
63: *
64: * @param prefixMap maps prefix to Namespace URI
65: */
66: public SimpleNamespaceContext(Map prefixMap) {
67: this .prefixMap = new HashMap(prefixMap);
68: }
69:
70: public String getNamespaceURI(String prefix) {
71: return (String) prefixMap.get(prefix);
72: }
73:
74: public Iterator getPrefixes() {
75: return prefixMap.keySet().iterator();
76: }
77: }
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