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1 package org.columba.core.config;
17
18 import java.util.StringTokenizer  ;
19
20 import org.columa.core.config.IDefaultItem;
21 import org.columba.core.xml.XmlElement;
22
23
29 public class DefaultItem implements Cloneable , IDefaultItem {
30 XmlElement root;
31
32 public DefaultItem(final XmlElement theRoot) {
33 this.root = theRoot;
34 }
35
36 public XmlElement getRoot() {
37 return root;
38 }
39
40
41 public XmlElement getElement(final String pathToElement) {
42
43
48 return getElement(pathToElement, true);
49 }
50
51 public XmlElement getElement(final String pathToElement,
52 final boolean create) {
53 XmlElement child = getRoot();
54
55 final StringTokenizer tok = new StringTokenizer (pathToElement, "/"); while (tok.hasMoreTokens()) {
57 final String token = tok.nextToken();
58 XmlElement e = child.getElement(token);
59 if ((e == null) && create) {
60 e = child.addSubElement(token);
61
62 }
63 child = e;
64
65 }
66
67 return child;
68 }
69
70 public XmlElement getChildElement(final int index) {
71 return getRoot().getElement(index);
72 }
73
74 public int getChildCount() {
75 return getRoot().count();
76 }
77
78 public XmlElement getChildElement(final String pathToElement,
79 final int index) {
80 return getRoot().getElement(pathToElement).getElement(index);
81 }
82
83 public boolean contains(final String key) {
84 return getRoot().getAttributes().containsKey(key);
85 }
86
87 public String get(final String key) {
88 return getRoot().getAttribute(key);
89 }
90
91 public String getString(final String pathToElement, final String key) {
92 final XmlElement element = getElement(pathToElement);
93
94 if (element != null) {
95 if ((key == null) || (key.length() == 0)) {
96 return element.getData();
97 }
98 return element.getAttribute(key);
99 }
100 return null;
101 }
102
103 public void setString(final String key, final String newValue) {
104 getRoot().addAttribute(key, newValue);
105 }
106
107 public void setString(final String pathToElement, final String key,
108 final String newValue) {
109 XmlElement element = getElement(pathToElement);
110 if (element == null) {
111 element = root.addSubElement(pathToElement);
112 }
113
114 if (key == null) {
115 element.setData(newValue);
116 } else {
117 element.addAttribute(key, newValue);
118 }
119
120 }
121
122
123 public int getInteger(final String key) {
124 final String value = get(key);
125
126 return Integer.parseInt(value);
127 }
128
129 public int getIntegerWithDefault(final String key, final int defaultValue) {
130 String value = get(key);
131
132 if (value == null) {
133 value = new Integer (defaultValue).toString();
134 setString(key, value);
135 }
136
137 try {
138 return Integer.parseInt(value);
139 } catch (final NumberFormatException e) {
140 return defaultValue;
141 }
142 }
143
144 public int getInteger(final String pathToElement, final String key) {
145 final String value = getString(pathToElement, key);
146
147 return Integer.parseInt(value);
148 }
149
150 public int getIntegerWithDefault(final String pathToElement,
151 final String key, final int defaultValue) {
152 String value = getString(pathToElement, key);
153
154 if (value == null) {
155 value = new Integer (defaultValue).toString();
156 setString(pathToElement, key, value);
157 }
158
159 int result = -1;
160 try {
161 result = Integer.parseInt(value);
162 } catch (final NumberFormatException e) {
163 return defaultValue;
165 }
166
167 return result;
168 }
169
170 public void setInteger(final String key, final int value) {
171 setString(key, Integer.toString(value));
172 }
173
174 public void setInteger(final String pathToElement, final String key,
175 final int value) {
176 setString(pathToElement, key, Integer.toString(value));
177 }
178
179 public boolean getBooleanWithDefault(final String key,
180 final boolean defaultValue) {
181 String value = get(key);
182
183 if (value == null) {
184 value = Boolean.toString(defaultValue);
185 setString(key, value);
186 }
187
188 return Boolean.valueOf(value).booleanValue();
189 }
190
191 public boolean getBoolean(final String key) {
192 final String value = get(key);
193
194 return Boolean.valueOf(value).booleanValue();
195 }
196
197 public boolean getBoolean(final String pathToElement, final String key) {
198 final String value = getString(pathToElement, key);
199
200 return Boolean.valueOf(value).booleanValue();
201 }
202
203 public boolean getBooleanWithDefault(final String pathToElement,
204 final String key, final boolean defaultValue) {
205 String value = getString(pathToElement, key);
206
207 if (value == null) {
208 value = Boolean.valueOf(defaultValue).toString();
209 setString(pathToElement, key, value);
210 }
211
212 return Boolean.valueOf(value).booleanValue();
213 }
214
215 public void setBoolean(final String key, final boolean value) {
216 setString(key, value ? Boolean.TRUE.toString() : Boolean.FALSE
217 .toString());
218 }
219
220 public void setBoolean(final String pathToElement, final String key,
221 final boolean value) {
222 setString(pathToElement, key, value ? Boolean.TRUE.toString()
223 : Boolean.FALSE.toString());
224 }
225
226
227 @Override
228 public boolean equals(final Object obj) {
229 boolean equal = false;
230
231 if ((obj != null) && (obj instanceof IDefaultItem)) {
232 final DefaultItem other = (DefaultItem) obj;
233
234 if ((root == other.root)
235 || ((root != null) && root.equals(other.root))) {
236 equal = true;
237 }
238 }
239
240 return equal;
241 }
242
243
244 @Override
245 public int hashCode() {
246 int hashCode = 43;
247
248 if (root != null) {
249 hashCode += (root.hashCode() * 97);
250 }
251
252 return hashCode;
253 }
254
255
256 @Override
257 public Object clone() {
258 try {
259 final DefaultItem other = (DefaultItem) super.clone();
260 other.root = (XmlElement) root.clone();
262 return other;
263 } catch (final CloneNotSupportedException cnse) {
264 throw new InternalError ("Could not clone DefaultItem: " + cnse); }
266 }
267
268
273 public String getStringWithDefault(final String key,
274 final String defaultValue) {
275 String result = getRoot().getAttribute(key);
276 if (result == null) {
277 result = defaultValue;
278 }
279 return result;
280 }
281
282
286 public String getStringWithDefault(final String pathToElement,
287 final String key, final String defaultValue) {
288 final String value = getString(pathToElement, key);
289
290 if (value == null) {
291 setString(pathToElement, key, value);
292 return defaultValue;
293 }
294
295 return value;
296 }
297
298 public void notifyObservers(final String path) {
299 final XmlElement e = getElement(path);
300 e.notifyObservers();
301 }
302 } |
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