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1
9
10 package org.dom4j.tree;
11
12 import org.dom4j.Element;
13 import org.dom4j.Namespace;
14 import org.dom4j.Node;
15 import org.dom4j.Visitor;
16
17
22 public class AbstractNamespace extends AbstractNode implements Namespace {
23
24
25 protected static final NamespaceCache cache = new NamespaceCache();
26
27
28 public static final AbstractNamespace XML_NAMESPACE
29 = cache.get("xml", "http://www.w3.org/XML/1998/namespace");
30
31
32 public static final AbstractNamespace NO_NAMESPACE
33 = cache.get("", "");
34
35
36
37 private String  prefix;
38
39
40 private String uri;
41
42
43 private int hashCode;
44
45
46
51 public static AbstractNamespace get(String prefix, String uri) {
52 return cache.get(prefix, uri);
53 }
54
55
60 public static Namespace get(String uri) {
61 return cache.get(uri);
62 }
63
64
67 public AbstractNamespace(String prefix, String uri) {
68 this.prefix = (prefix != null) ? prefix : "";
69 this.uri = (uri != null) ? uri : "";;
70 }
71
72
73 public short getNodeType() {
74 return NAMESPACE_NODE;
75 }
76
77
80 public int hashCode() {
81 if ( hashCode == 0 ) {
82 hashCode = createHashCode();
83 }
84 return hashCode;
85 }
86
87
88 protected int createHashCode() {
89 int hashCode = uri.hashCode() ^ prefix.hashCode();
90 if ( hashCode == 0 ) {
91 hashCode = 0xbabe;
92 }
93 return hashCode;
94 }
95
96
97 public boolean equals(Object object) {
98 if ( this == object ) {
99 return true;
100 }
101 else if ( object instanceof Namespace ) {
102 Namespace that = (Namespace) object;
103
104 if ( hashCode() == that.hashCode() ) {
106 return uri.equals( that.getURI() )
107 && prefix.equals( that.getPrefix() );
108 }
109 }
110 return false;
111 }
112
113 public String getText() {
114 return uri;
115 }
116
117 public String getStringValue() {
118 return uri;
119 }
120
121
123 public String getPrefix() {
124 return prefix;
125 }
126
127
129 public String getURI() {
130 return uri;
131 }
132
133
134 public String getXPathNameStep() {
135 if (prefix != null && !"".equals( prefix )) {
136 return "namespace::" + prefix;
137 }
138 return "namespace::*[name()='']";
139 }
140
141 public String getPath(Element context) {
142 StringBuffer path = new StringBuffer (10);
143 Element parent = getParent();
144 if (parent != null && parent != context) {
145 path.append( parent.getPath( context ) );
146 path.append( '/' );
147 }
148 path.append( getXPathNameStep() );
149 return path.toString();
150 }
151
152 public String getUniquePath(Element context) {
153 StringBuffer path = new StringBuffer (10);
154 Element parent = getParent();
155 if (parent != null && parent != context) {
156 path.append( parent.getUniquePath( context ) );
157 path.append( '/' );
158 }
159 path.append( getXPathNameStep() );
160 return path.toString();
161 }
162
163 public String toString() {
164 return super.toString() + " [AbstractNamespace: prefix " + getPrefix()
165 + " mapped to URI \"" + getURI() + "\"]";
166 }
167
168 public String asXML() {
169 StringBuffer asxml = new StringBuffer (10);
170 String prefix = getPrefix();
171 if ( prefix != null && prefix.length() > 0 ) {
172 asxml.append("xmlns:");
173 asxml.append(prefix);
174 asxml.append("=\"");
175 }
176 else {
177 asxml.append("xmlns=\"");
178 }
179 asxml.append(getURI());
180 asxml.append("\"");
181 return asxml.toString();
182 }
183
184 public void accept(Visitor visitor) {
185 visitor.visit(this);
186 }
187
188 protected Node createXPathResult(Element parent) {
189 return new org.dom4j.tree.DefaultNamespace( parent, getPrefix(), getURI() );
190 }
191
192 }
193
194
195
196
197
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