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1
28
29
33 package net.sf.jasperreports.engine.design;
34
35 import java.util.ArrayList  ;
36 import java.util.List ;
37 import java.util.StringTokenizer ;
38
39 import net.sf.jasperreports.engine.JRConstants;
40 import net.sf.jasperreports.engine.JRExpressionChunk;
41 import net.sf.jasperreports.engine.base.JRBaseExpression;
42
43
44
48 public class JRDesignExpression extends JRBaseExpression
49 {
50
53 private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID;
54
55
58 protected List chunks = new ArrayList ();
59
60
61
64 public JRDesignExpression()
65 {
66 super();
67
68 regenerateId();
69 }
70
71
72
75 public void setValueClass(Class clazz)
76 {
77 setValueClassName(clazz.getName());
78 }
79
80
83 public void setValueClassName(String className)
84 {
85 valueClassName = className;
86 valueClass = null;
87 }
88
89
92 public void setId(int id)
93 {
94 this.id = id;
95 }
96
97
100 public JRExpressionChunk[] getChunks()
101 {
102 JRExpressionChunk[] chunkArray = null;
103
104 if (chunks != null && chunks.size() > 0)
105 {
106 chunkArray = new JRExpressionChunk[chunks.size()];
107 chunks.toArray(chunkArray);
108 }
109
110 return chunkArray;
111 }
112
113
117 public void setChunks(List chunks)
118 {
119 this.chunks.clear();
120 this.chunks.addAll(chunks);
121 }
122
123
126 public void addChunk(JRDesignExpressionChunk chunk)
127 {
128 this.chunks.add(chunk);
129 }
130
131
134 public void addTextChunk(String text)
135 {
136 JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
137 chunk.setType(JRExpressionChunk.TYPE_TEXT);
138 chunk.setText(text);
139
140 this.chunks.add(chunk);
141 }
142
143
146 public void addParameterChunk(String text)
147 {
148 JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
149 chunk.setType(JRExpressionChunk.TYPE_PARAMETER);
150 chunk.setText(text);
151
152 this.chunks.add(chunk);
153 }
154
155
158 public void addFieldChunk(String text)
159 {
160 JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
161 chunk.setType(JRExpressionChunk.TYPE_FIELD);
162 chunk.setText(text);
163
164 this.chunks.add(chunk);
165 }
166
167
170 public void addVariableChunk(String text)
171 {
172 JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
173 chunk.setType(JRExpressionChunk.TYPE_VARIABLE);
174 chunk.setText(text);
175
176 this.chunks.add(chunk);
177 }
178
179
182 public void addResourceChunk(String text)
183 {
184 JRDesignExpressionChunk chunk = new JRDesignExpressionChunk();
185 chunk.setType(JRExpressionChunk.TYPE_RESOURCE);
186 chunk.setText(text);
187
188 this.chunks.add(chunk);
189 }
190
191
194 public void setText(String text)
195 {
196 chunks.clear();
197
198 if (text != null)
199 {
200 int end = 0;
201 StringBuffer textChunk = new StringBuffer ();
202
203 StringTokenizer tkzer = new StringTokenizer (text, "$", true);
204 String token = null;
205 boolean wasDelim = false;
206 while (tkzer.hasMoreTokens())
207 {
208 token = tkzer.nextToken();
209
210 if (token.equals("$"))
211 {
212 if (wasDelim)
213 {
214 textChunk.append("$");
215 }
216
217 wasDelim = true;
218 }
219 else
220 {
221 if ( token.startsWith("P{") && wasDelim )
222 {
223 end = token.indexOf('}');
224 if (end > 0)
225 {
226 if (textChunk.length() > 0)
227 {
228 addTextChunk(textChunk.toString());
229 }
230 addParameterChunk(token.substring(2, end));
231 textChunk = new StringBuffer (token.substring(end + 1));
232 }
233 else
234 {
235 if (wasDelim)
236 {
237 textChunk.append("$");
238 }
239 textChunk.append(token);
240 }
241 }
242 else if ( token.startsWith("F{") && wasDelim )
243 {
244 end = token.indexOf('}');
245 if (end > 0)
246 {
247 if (textChunk.length() > 0)
248 {
249 addTextChunk(textChunk.toString());
250 }
251 addFieldChunk(token.substring(2, end));
252 textChunk = new StringBuffer (token.substring(end + 1));
253 }
254 else
255 {
256 if (wasDelim)
257 {
258 textChunk.append("$");
259 }
260 textChunk.append(token);
261 }
262 }
263 else if ( token.startsWith("V{") && wasDelim )
264 {
265 end = token.indexOf('}');
266 if (end > 0)
267 {
268 if (textChunk.length() > 0)
269 {
270 addTextChunk(textChunk.toString());
271 }
272 addVariableChunk(token.substring(2, end));
273 textChunk = new StringBuffer (token.substring(end + 1));
274 }
275 else
276 {
277 if (wasDelim)
278 {
279 textChunk.append("$");
280 }
281 textChunk.append(token);
282 }
283 }
284 else if ( token.startsWith("R{") && wasDelim )
285 {
286 end = token.indexOf('}');
287 if (end > 0)
288 {
289 if (textChunk.length() > 0)
290 {
291 addTextChunk(textChunk.toString());
292 }
293 addResourceChunk(token.substring(2, end));
294 textChunk = new StringBuffer (token.substring(end + 1));
295 }
296 else
297 {
298 if (wasDelim)
299 {
300 textChunk.append("$");
301 }
302 textChunk.append(token);
303 }
304 }
305 else
306 {
307 if (wasDelim)
308 {
309 textChunk.append("$");
310 }
311 textChunk.append(token);
312 }
313
314 wasDelim = false;
315 }
316 }
317 if (wasDelim)
318 {
319 textChunk.append("$");
320 }
321 if (textChunk.length() > 0)
322 {
323 this.addTextChunk(textChunk.toString());
324 }
325 }
326 }
327
328 }
329 |
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