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1
8 package org.apache.avalon.excalibur.source;
9
10 import org.apache.avalon.framework.parameters.Parameters;
11 import java.io.*;
12 import java.util.*;
13
14
22 public final class SourceParameters
23 implements Serializable {
24
25
26 private Map names = new HashMap(5);
27
28
31 private String  parseName(String s) {
32 StringBuffer sb = new StringBuffer ();
33 for (int i = 0; i < s.length(); i++) {
34 char c = s.charAt(i);
35 switch (c) {
36 case '+':
37 sb.append(' ');
38 break;
39 case '%':
40 try {
41 sb.append((char) Integer.parseInt(s.substring(i+1, i+3),
42 16));
43 i += 2;
44 } catch (NumberFormatException e) {
45 throw new IllegalArgumentException ();
46 } catch (StringIndexOutOfBoundsException e) {
47 String rest = s.substring(i);
48 sb.append(rest);
49 if (rest.length()==2)
50 i++;
51 }
52
53 break;
54 default:
55 sb.append(c);
56 break;
57 }
58 }
59 return sb.toString();
60 }
61
62
65 public SourceParameters() {
66 }
67
68
71 public SourceParameters(String queryString) {
72 if (queryString != null) {
73 StringTokenizer st = new StringTokenizer(queryString, "&");
74 while (st.hasMoreTokens()) {
75 String pair = (String )st.nextToken();
76 int pos = pair.indexOf('=');
77 if (pos != -1) {
78 this.setParameter(this.parseName(pair.substring(0, pos)),
79 this.parseName(pair.substring(pos+1, pair.length())));
80 }
81 }
82 }
83 }
84
85
91 private void setParameter(String name, String value) {
92 ArrayList list;
93 if (names.containsKey(name) == true) {
94 list = (ArrayList)names.get(name);
95 } else {
96 list = new ArrayList(3);
97 names.put(name, list);
98 }
99 list.add(value);
100 }
101
102
108 public String getParameter(String name) {
109 if (names.containsKey(name) == true) {
110 return (String )((ArrayList)names.get(name)).get(0);
111 }
112 return null;
113 }
114
115
122 public String getParameter(String name, String defaultValue) {
123 if (names.containsKey(name) == true) {
124 return (String )((ArrayList)names.get(name)).get(0);
125 }
126 return defaultValue;
127 }
128
129
136 public int getParameterAsInteger(String name, int defaultValue) {
137 if (names.containsKey(name) == true) {
138 return new Integer ((String )((ArrayList)names.get(name)).get(0)).intValue();
139 }
140 return defaultValue;
141 }
142
143
150 public boolean getParameterAsBoolean(String name, boolean defaultValue) {
151 if (names.containsKey(name) == true) {
152 return new Boolean ((String )((ArrayList)names.get(name)).get(0)).booleanValue();
153 }
154 return defaultValue;
155 }
156
157
162 public boolean containsParameter(String name) {
163 return names.containsKey(name);
164 }
165
166
172 public Iterator getParameterValues(String name) {
173 if (names.containsKey(name) == true) {
174 ArrayList list = (ArrayList)names.get(name);
175 return list.iterator();
176 }
177 return null;
178 }
179
183 public Iterator getParameterNames() {
184 return names.keySet().iterator();
185 }
186
187
193 public Parameters getFirstParameters() {
194 Parameters result = new Parameters();
195 Iterator iter = this.getParameterNames();
196 String parName;
197 while (iter.hasNext()) {
198 parName = (String )iter.next();
199 result.setParameter(parName, this.getParameter(parName));
200 }
201 return result;
202 }
203
204
211 public String getQueryString() {
212 StringBuffer result = new StringBuffer ();
213 Iterator iter = this.names.keySet().iterator();
214 Iterator listIterator;
215 String key;
216 String value;
217 boolean first = true;
218 while (iter.hasNext() == true) {
219 key = (String )iter.next();
220 listIterator = ((ArrayList)names.get(key)).iterator();
221 while (listIterator.hasNext() == true) {
222 if (first == false) result.append('&');
223 value = (String )listIterator.next();
224 result.append(key).append('=').append(value);
225 first = false;
226 }
227 }
228 return (result.length() == 0 ? null : result.toString());
229 }
230
231
238 public String getEncodedQueryString() {
239 StringBuffer result = new StringBuffer ();
240 Iterator iter = this.names.keySet().iterator();
241 Iterator listIterator;
242 String key;
243 String value;
244 boolean first = true;
245 while (iter.hasNext() == true) {
246 key = (String )iter.next();
247 listIterator = ((ArrayList)names.get(key)).iterator();
248 while (listIterator.hasNext() == true) {
249 if (first == false) result.append('&');
250 value = (String )listIterator.next();
251 result.append(key).append('=').append(SourceUtil.encode(value));
252 first = false;
253 }
254 }
255 return (result.length() == 0 ? null : result.toString());
256 }
257
258
261 public void add(SourceParameters parameters) {
262 Iterator names = parameters.getParameterNames();
263 Iterator values;
264 String name;
265 String value;
266 while (names.hasNext() == true) {
267 name = (String )names.next();
268 values = parameters.getParameterValues(name);
269 while (values.hasNext() == true) {
270 value = (String )values.next();
271 this.setParameter(name, value);
272 }
273 }
274 }
275
276
279 public String toString() {
280 StringBuffer buffer = new StringBuffer ("SourceParameters: {");
281 Iterator names = this.getParameterNames();
282 String name;
283 boolean firstName = true;
284 Iterator values;
285 String value;
286 boolean firstValue;
287 while (names.hasNext() == true) {
288 name = (String )names.next();
289 if (firstName == false) {
290 buffer.append(", ");
291 } else {
292 firstName = false;
293 }
294 buffer.append(name).append(" = (");
295 values = this.getParameterValues(name);
296 firstValue = true;
297 while (values.hasNext() == true) {
298 value = (String )values.next();
299 if (firstValue == false) {
300 buffer.append(", ");
301 } else {
302 firstValue = false;
303 }
304 buffer.append(value);
305 }
306 buffer.append(')');
307 }
308 buffer.append('}');
309 return buffer.toString();
310 }
311
312
315 public Object clone() {
316 SourceParameters newObject = new SourceParameters();
317 Iterator names = this.getParameterNames();
318 Iterator values;
319 String name, value;
320 while (names.hasNext() == true) {
321 name = (String )names.next();
322 values = this.getParameterValues(name);
323 while (values.hasNext() == true) {
324 value = (String )values.next();
325 newObject.setParameter(name, value);
326 }
327 }
328 return newObject;
329 }
330
331
334 public boolean hasParameters() {
335 return (this.names.size() > 0);
336 }
337
338
342 public void setSingleParameterValue(String name, String value) {
343 this.removeParameter(name);
344 this.setParameter(name, value);
345 }
346
347
350 public void removeParameter(String name) {
351 if (this.names.containsKey(name) == true) {
352 this.names.remove(name);
353 }
354 }
355
356 }
357 |
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