1 /*
2 * Copyright (c) 2006, 2019, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package jnlp.converter.parser.xml;
25
26 import java.io.PrintWriter;
27 import java.io.StringWriter;
28
29 /**
30 * Class that contains information about an XML Node
31 */
32 public class XMLNode {
33 private final boolean _isElement; // Element/PCTEXT
34 private final String _name;
35 private final XMLAttribute _attr;
36 private XMLNode _parent; // Parent Node
37 private XMLNode _nested; // Nested XML tags
38 private XMLNode _next; // Following XML tag on the same level
39
40 public final static String WILDCARD = "*";
41
42 /** Creates a PCTEXT node */
43 public XMLNode(String name) {
44 _isElement = false;
45 _name = name;
46 _attr = null;
47 _nested = null;
48 _next = null;
49 _parent = null;
50 }
51
52 /** Creates a ELEMENT node */
53 public XMLNode(String name, XMLAttribute attr) {
54 _isElement = true;
55 _name = stripNameSpace(name);
56 _attr = attr;
57 _nested = null;
58 _next = null;
59 _parent = null;
60 }
61
62 public String getName() {
63 return _name;
64 }
65
66 public XMLAttribute getAttributes() {
67 return _attr;
68 }
69
70 public XMLNode getNested() {
71 return _nested;
72 }
73
74 public XMLNode getNext() {
75 return _next;
76 }
77
78 public boolean isElement() {
79 return _isElement;
80 }
81
82 public void setParent(XMLNode parent) {
83 _parent = parent;
84 }
85
86 public XMLNode getParent() {
87 return _parent;
88 }
89
90 public void setNext(XMLNode next) {
91 _next = next;
92 }
93
94 public void setNested(XMLNode nested) {
95 _nested = nested;
96 }
97
98 public static String stripNameSpace(String name) {
99 if (name != null && !name.startsWith("xmlns:")) {
100 int i = name.lastIndexOf(":");
101 if (i >= 0 && i < name.length()) {
102 return name.substring(i+1);
103 }
104 }
105 return name;
106 }
107
108 @Override
109 public int hashCode() {
110 int hash = 3;
111 hash = 83 * hash + (this._name != null ? this._name.hashCode() : 0);
112 hash = 83 * hash + (this._attr != null ? this._attr.hashCode() : 0);
113 hash = 83 * hash + (this._nested != null ? this._nested.hashCode() : 0);
114 hash = 83 * hash + (this._next != null ? this._next.hashCode() : 0);
115 return hash;
116 }
117
118 @Override
119 public boolean equals(Object o) {
120 if (o == null || !(o instanceof XMLNode)) return false;
121 XMLNode other = (XMLNode)o;
122 boolean result =
123 match(_name, other._name) &&
124 match(_attr, other._attr) &&
125 match(_nested, other._nested) &&
126 match(_next, other._next);
127 return result;
128 }
129
130 public String getAttribute(String name) {
131 XMLAttribute cur = _attr;
132 while(cur != null) {
133 if (name.equals(cur.getName())) return cur.getValue();
134 cur = cur.getNext();
135 }
136 return "";
137 }
138
139 private static boolean match(Object o1, Object o2) {
140 if (o1 == null) {
141 return (o2 == null);
142 }
143 return o1.equals(o2);
144 }
145
146 public void printToStream(PrintWriter out) {
147 printToStream(out, false);
148 }
149
150 public void printToStream(PrintWriter out, boolean trim) {
151 printToStream(out, 0, trim);
152 }
153
154 public void printToStream(PrintWriter out, int n, boolean trim) {
155 if (!isElement()) {
156 String value = _name; // value node (where name is data of parent)
157 if (trim && value.length() > 512) {
158 value = "...";
159 }
160 out.print(value);
161 } else {
162 if (_nested == null) {
163 String attrString = (_attr == null) ? "" : (" " + _attr.toString());
164 lineln(out, n, "<" + _name + attrString + "/>");
165 } else {
166 String attrString = (_attr == null) ? "" : (" " + _attr.toString());
167 lineln(out, n, "<" + _name + attrString + ">");
168 _nested.printToStream(out, n + 1, trim);
169 if (_nested.isElement()) {
170 lineln(out, n, "</" + _name + ">");
171 } else {
172 out.print("</" + _name + ">");
173 }
174 }
175 }
176 if (_next != null) {
177 _next.printToStream(out, n, trim);
178 }
179 }
180
181 private static void lineln(PrintWriter out, int indent, String s) {
182 out.println("");
183 for(int i = 0; i < indent; i++) {
184 out.print(" ");
185 }
186 out.print(s);
187 }
188
189 @Override
190 public String toString() {
191 return toString(false);
192 }
193
194 public String toString(boolean hideLongElementValue) {
195 StringWriter sw = new StringWriter(1000);
196 PrintWriter pw = new PrintWriter(sw);
197 printToStream(pw, hideLongElementValue);
198 pw.close();
199 return sw.toString();
200 }
201 }