|
0
|
1 /*--
|
|
|
2
|
|
|
3 $Id: NamespaceStack.java,v 1.14 2007/11/10 05:29:01 jhunter Exp $
|
|
|
4
|
|
|
5 Copyright (C) 2000-2007 Jason Hunter & Brett McLaughlin.
|
|
|
6 All rights reserved.
|
|
|
7
|
|
|
8 Redistribution and use in source and binary forms, with or without
|
|
|
9 modification, are permitted provided that the following conditions
|
|
|
10 are met:
|
|
|
11
|
|
|
12 1. Redistributions of source code must retain the above copyright
|
|
|
13 notice, this list of conditions, and the following disclaimer.
|
|
|
14
|
|
|
15 2. Redistributions in binary form must reproduce the above copyright
|
|
|
16 notice, this list of conditions, and the disclaimer that follows
|
|
|
17 these conditions in the documentation and/or other materials
|
|
|
18 provided with the distribution.
|
|
|
19
|
|
|
20 3. The name "JDOM" must not be used to endorse or promote products
|
|
|
21 derived from this software without prior written permission. For
|
|
|
22 written permission, please contact <request_AT_jdom_DOT_org>.
|
|
|
23
|
|
|
24 4. Products derived from this software may not be called "JDOM", nor
|
|
|
25 may "JDOM" appear in their name, without prior written permission
|
|
|
26 from the JDOM Project Management <request_AT_jdom_DOT_org>.
|
|
|
27
|
|
|
28 In addition, we request (but do not require) that you include in the
|
|
|
29 end-user documentation provided with the redistribution and/or in the
|
|
|
30 software itself an acknowledgement equivalent to the following:
|
|
|
31 "This product includes software developed by the
|
|
|
32 JDOM Project (http://www.jdom.org/)."
|
|
|
33 Alternatively, the acknowledgment may be graphical using the logos
|
|
|
34 available at http://www.jdom.org/images/logos.
|
|
|
35
|
|
|
36 THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
|
|
|
37 WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
|
|
38 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
|
39 DISCLAIMED. IN NO EVENT SHALL THE JDOM AUTHORS OR THE PROJECT
|
|
|
40 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
41 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
|
42 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
|
|
|
43 USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
|
44 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
|
45 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
|
46 OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
47 SUCH DAMAGE.
|
|
|
48
|
|
|
49 This software consists of voluntary contributions made by many
|
|
|
50 individuals on behalf of the JDOM Project and was originally
|
|
|
51 created by Jason Hunter <jhunter_AT_jdom_DOT_org> and
|
|
|
52 Brett McLaughlin <brett_AT_jdom_DOT_org>. For more information
|
|
|
53 on the JDOM Project, please see <http://www.jdom.org/>.
|
|
|
54
|
|
|
55 */
|
|
|
56 package org.jdom.output;
|
|
|
57
|
|
|
58 import java.util.*;
|
|
|
59
|
|
|
60 import org.jdom.Namespace;
|
|
|
61
|
|
|
62 /**
|
|
|
63 * A non-public utility class used by both <code>{@link XMLOutputter}</code> and
|
|
|
64 * <code>{@link SAXOutputter}</code> to manage namespaces in a JDOM Document
|
|
|
65 * during output.
|
|
|
66 *
|
|
|
67 * @version $Revision: 1.14 $, $Date: 2007/11/10 05:29:01 $
|
|
|
68 * @author Elliotte Rusty Harolde
|
|
|
69 * @author Fred Trimble
|
|
|
70 * @author Brett McLaughlin
|
|
|
71 */
|
|
|
72 class NamespaceStack {
|
|
|
73
|
|
|
74 private static final String CVS_ID =
|
|
|
75 "@(#) $RCSfile: NamespaceStack.java,v $ $Revision: 1.14 $ $Date: 2007/11/10 05:29:01 $ $Name: jdom_1_1_1 $";
|
|
|
76
|
|
|
77 /** The prefixes available */
|
|
|
78 private Stack prefixes;
|
|
|
79
|
|
|
80 /** The URIs available */
|
|
|
81 private Stack uris;
|
|
|
82
|
|
|
83 /**
|
|
|
84 * This creates the needed storage.
|
|
|
85 */
|
|
|
86 NamespaceStack() {
|
|
|
87 prefixes = new Stack();
|
|
|
88 uris = new Stack();
|
|
|
89 }
|
|
|
90
|
|
|
91 /**
|
|
|
92 * This will add a new <code>{@link Namespace}</code>
|
|
|
93 * to those currently available.
|
|
|
94 *
|
|
|
95 * @param ns <code>Namespace</code> to add.
|
|
|
96 */
|
|
|
97 public void push(Namespace ns) {
|
|
|
98 prefixes.push(ns.getPrefix());
|
|
|
99 uris.push(ns.getURI());
|
|
|
100 }
|
|
|
101
|
|
|
102 /**
|
|
|
103 * This will remove the topmost (most recently added)
|
|
|
104 * <code>{@link Namespace}</code>, and return its prefix.
|
|
|
105 *
|
|
|
106 * @return <code>String</code> - the popped namespace prefix.
|
|
|
107 */
|
|
|
108 public String pop() {
|
|
|
109 String prefix = (String)prefixes.pop();
|
|
|
110 uris.pop();
|
|
|
111
|
|
|
112 return prefix;
|
|
|
113 }
|
|
|
114
|
|
|
115 /**
|
|
|
116 * This returns the number of available namespaces.
|
|
|
117 *
|
|
|
118 * @return <code>int</code> - size of the namespace stack.
|
|
|
119 */
|
|
|
120 public int size() {
|
|
|
121 return prefixes.size();
|
|
|
122 }
|
|
|
123
|
|
|
124 /**
|
|
|
125 * Given a prefix, this will return the namespace URI most
|
|
|
126 * rencently (topmost) associated with that prefix.
|
|
|
127 *
|
|
|
128 * @param prefix <code>String</code> namespace prefix.
|
|
|
129 * @return <code>String</code> - the namespace URI for that prefix.
|
|
|
130 */
|
|
|
131 public String getURI(String prefix) {
|
|
|
132 int index = prefixes.lastIndexOf(prefix);
|
|
|
133 if (index == -1) {
|
|
|
134 return null;
|
|
|
135 }
|
|
|
136 String uri = (String)uris.elementAt(index);
|
|
|
137 return uri;
|
|
|
138 }
|
|
|
139
|
|
|
140 /**
|
|
|
141 * This will print out the size and current stack, from the
|
|
|
142 * most recently added <code>{@link Namespace}</code> to
|
|
|
143 * the "oldest," all to <code>System.out</code>.
|
|
|
144 */
|
|
|
145 public String toString() {
|
|
|
146 StringBuffer buf = new StringBuffer();
|
|
|
147 String sep = System.getProperty("line.separator");
|
|
|
148 buf.append("Stack: " + prefixes.size() + sep);
|
|
|
149 for (int i = 0; i < prefixes.size(); i++) {
|
|
|
150 buf.append(prefixes.elementAt(i) + "&" + uris.elementAt(i) + sep);
|
|
|
151 }
|
|
|
152 return buf.toString();
|
|
|
153 }
|
|
|
154 }
|
