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1
32
33 package websphinx.workbench;
34
35 import java.awt.*;
36 import websphinx.*;
37 import rcm.awt.Constrain;
38
39 public class PagePredicateEditor extends Panel {
41 PageFeatureChoice choice;
42
43
46 public PagePredicateEditor () {
47 setLayout (new GridBagLayout ());
48 choice = new PageFeatureChoice ();
49 Constrain.add (this, choice, Constrain.labelLike (0, 0));
50 Constrain.add (this, choice.getArgs(), Constrain.areaLike (0, 1));
51 setPagePredicate (null);
52 }
53
54 public void setPagePredicate (PagePredicate pred) {
55 choice.setPagePredicate (pred);
57 }
58
59 public PagePredicate getPagePredicate () {
60 return choice.getPagePredicate ();
61 }
62
63 }
64
65 class PageFeatureChoice extends FeatureChoice {
66 PageFeatureArgs args = new PageFeatureArgs ();
67
68 final static String  NULL_FEATURE = "all pages";
69 final static String URL_FEATURE = "URL";
70 final static String HTML_FEATURE = "HTML";
71 final static String TEXT_FEATURE = "text";
72 final static String LABEL_FEATURE = "labels";
73 final static String TITLE_FEATURE = "title";
74 final static String SCRIPT_FEATURE = "script";
75
76 public PageFeatureChoice () {
77 addItem (NULL_FEATURE);
78 addItem (LABEL_FEATURE);
79 addItem (TITLE_FEATURE);
80 addItem (URL_FEATURE);
81 addItem (TEXT_FEATURE);
82 addItem (HTML_FEATURE);
83 addItem (SCRIPT_FEATURE);
84 }
85
86 public void setPagePredicate (PagePredicate pred) {
87 PagePredicate neg = null;
88 if (pred instanceof DualPredicate) {
89 neg = (PagePredicate)((DualPredicate)pred).getNegativePredicate ();
90 pred = (PagePredicate)((DualPredicate)pred).getPositivePredicate ();
91 }
92
93 if (pred == null) {
94 select (NULL_FEATURE);
95 }
96 else if (pred instanceof URLPredicate) {
97 URLPredicate urlpred = (URLPredicate)pred;
98 URLPredicate urlneg = (URLPredicate)neg;
99 select (URL_FEATURE);
100 args.setURLPattern (urlpred.getPattern ().toString());
101 args.setURLNegPattern (urlneg != null
102 ? urlneg.getPattern ().toString ()
103 : "");
104 }
105 else if (pred instanceof ContentPredicate) {
106 ContentPredicate contpred = (ContentPredicate)pred;
107 ContentPredicate contneg = (ContentPredicate)neg;
108 if (contpred.getOverHTML()) {
109 select (HTML_FEATURE);
110 args.setHTMLPattern (contpred.getPattern ().toString());
111 args.setHTMLNegPattern (contneg != null
112 ? contneg.getPattern ().toString ()
113 : "");
114 }
115 else {
116 select (TEXT_FEATURE);
117 args.setTextPattern (contpred.getPattern ().toString());
118 args.setTextNegPattern (contneg != null
119 ? contneg.getPattern ().toString ()
120 : "");
121 }
122 }
123 else if (pred instanceof TitlePredicate) {
124 TitlePredicate titlepred = (TitlePredicate)pred;
125 TitlePredicate titleneg = (TitlePredicate)neg;
126 select (TITLE_FEATURE);
127 args.setTitlePattern (titlepred.getPattern ().toString());
128 args.setTitleNegPattern (titleneg != null
129 ? titleneg.getPattern ().toString ()
130 : "");
131 }
132 else if (pred instanceof LabelPredicate) {
133 LabelPredicate labelpred = (LabelPredicate)pred;
134 select (LABEL_FEATURE);
135 args.setOrTerms (labelpred.getOrTerms());
136 args.setLabels (labelpred.getLabels());
137 }
138 else if (pred instanceof Script) {
139 Script script = (Script)pred;
140 select (SCRIPT_FEATURE);
141 args.setScript (script.getScript ());
142 }
143 else {
144 select (NULL_FEATURE);
145 }
146 }
147
148 public Panel getArgs () {
149 return args;
150 }
151
152 public PagePredicate getPagePredicate () {
153 String feat = getSelectedItem ();
154 if (feat.equals (URL_FEATURE))
155 return makeSingleOrDual (new URLPredicate (new Wildcard (args.getURLPattern())),
156 args.getURLNegPattern().length() == 0
157 ? null
158 : new URLPredicate (new Wildcard (args.getURLNegPattern())));
159 else if (feat.equals (HTML_FEATURE))
160 return makeSingleOrDual (new ContentPredicate (new Tagexp (args.getHTMLPattern()), true),
161 args.getHTMLNegPattern().length() == 0
162 ? null
163 : new ContentPredicate (new Tagexp (args.getHTMLNegPattern()), true));
164 else if (feat.equals (TEXT_FEATURE))
165 return makeSingleOrDual (new ContentPredicate (new Regexp (args.getTextPattern()), false),
166 args.getTextNegPattern().length() == 0
167 ? null
168 : new ContentPredicate (new Regexp (args.getTextNegPattern()), false));
169 else if (feat.equals (TITLE_FEATURE))
170 return makeSingleOrDual (new TitlePredicate (new Regexp (args.getTitlePattern())),
171 args.getTitleNegPattern().length() == 0
172 ? null
173 : new TitlePredicate (new Regexp (args.getTitleNegPattern())));
174 else if (feat.equals (LABEL_FEATURE))
175 return new LabelPredicate (args.getLabels(), args.getOrTerms());
176 else if (feat.equals (SCRIPT_FEATURE))
177 return new Script (args.getScript (), false);
178 else
179 return null;
180 }
181
182 private static PagePredicate makeSingleOrDual (PagePredicate positive,
183 PagePredicate negative) {
184 return negative == null
185 ? positive
186 : new DualPredicate (positive, negative);
187 }
188 }
189
190 class PageFeatureArgs extends Panel {
191
192 TextField urlPattern;
193 TextField urlNegPattern;
194 TextField textPattern;
195 TextField textNegPattern;
196 TextField htmlPattern;
197 TextField htmlNegPattern;
198 TextField titlePattern;
199 TextField titleNegPattern;
200 TextField labels;
201 Choice orTerms;
202 TextArea script;
203
204 final static String ANY_TERMS = "any";
205 final static String ALL_TERMS = "all";
206
207 public PageFeatureArgs () {
208 Panel panel;
209
210 setLayout (new CardLayout ());
211
212 add (PageFeatureChoice.NULL_FEATURE, panel = new Panel ());
213
214 add (PageFeatureChoice.URL_FEATURE, panel = Constrain.makeConstrainedPanel (1, 4));
215 Constrain.add (panel, new Label (" matches the wildcard expression "), Constrain.labelLike (0, 0));
216 Constrain.add (panel, urlPattern = new TextField (), Constrain.fieldLike (0, 1));
217 Constrain.add (panel, new Label (" but not the expression "), Constrain.labelLike (0, 2));
218 Constrain.add (panel, urlNegPattern = new TextField (), Constrain.fieldLike (0, 3));
219
220 add (PageFeatureChoice.HTML_FEATURE, panel = Constrain.makeConstrainedPanel (1, 4));
221 Constrain.add (panel, new Label (" matches the HTML tag expression "), Constrain.labelLike (0, 0));
222 Constrain.add (panel, htmlPattern = new TextField (), Constrain.fieldLike (0, 1));
223 Constrain.add (panel, new Label (" but not the expression "), Constrain.labelLike (0, 2));
224 Constrain.add (panel, htmlNegPattern = new TextField (), Constrain.fieldLike (0, 3));
225
226 add (PageFeatureChoice.TEXT_FEATURE, panel = Constrain.makeConstrainedPanel (1, 4));
227 Constrain.add (panel, new Label (" matches the regular expression "), Constrain.labelLike (0, 0));
228 Constrain.add (panel, textPattern = new TextField (), Constrain.fieldLike (0, 1));
229 Constrain.add (panel, new Label (" but not the expression "), Constrain.labelLike (0, 2));
230 Constrain.add (panel, textNegPattern = new TextField (), Constrain.fieldLike (0, 3));
231
232 add (PageFeatureChoice.TITLE_FEATURE, panel = Constrain.makeConstrainedPanel (1, 4));
233 Constrain.add (panel, new Label (" matches the regular expression "), Constrain.labelLike (0, 0));
234 Constrain.add (panel, titlePattern = new TextField (), Constrain.fieldLike (0, 1));
235 Constrain.add (panel, new Label (" but not the expression "), Constrain.labelLike (0, 2));
236 Constrain.add (panel, titleNegPattern = new TextField (), Constrain.fieldLike (0, 3));
237
238 add (PageFeatureChoice.LABEL_FEATURE, panel = Constrain.makeConstrainedPanel (3, 2));
239 Constrain.add (panel, new Label (" include "), Constrain.labelLike (0, 0));
240 Constrain.add (panel, orTerms = new Choice (), Constrain.labelLike (1, 0));
241 orTerms.addItem (ANY_TERMS);
242 orTerms.addItem (ALL_TERMS);
243 orTerms.select (ANY_TERMS);
244 Constrain.add (panel, new Label (" of the labels "), Constrain.labelLike (2, 0));
245 Constrain.add (panel, labels = new TextField (), Constrain.fieldLike (0, 1, 3));
246
247 ScriptInterpreter interp = Context.getScriptInterpreter ();
248 if (interp != null) {
249 add (PageFeatureChoice.SCRIPT_FEATURE,
250 panel = Constrain.makeConstrainedPanel (1, 2));
251 Constrain.add (panel, new Label (interp.getLanguage() + " Function (crawler, page)"),
252 Constrain.labelLike (0, 0));
253 Constrain.add (panel, script = new TextArea ("return true;\n"),
254 Constrain.areaLike (0, 1));
255 }
256 else {
257 add (PageFeatureChoice.SCRIPT_FEATURE,
258 panel = Constrain.makeConstrainedPanel (1, 1));
259 Constrain.add (panel, new Label ("No scripting language is available."),
260 Constrain.labelLike (0, 0));
261 }
262 }
263
264 public void setURLPattern (String pattern) {
265 urlPattern.setText (pattern);
266 }
267
268 public String getURLPattern () {
269 return urlPattern.getText ();
270 }
271
272 public void setURLNegPattern (String pattern) {
273 urlNegPattern.setText (pattern);
274 }
275
276 public String getURLNegPattern () {
277 return urlNegPattern.getText ();
278 }
279
280 public void setTextPattern (String pattern) {
281 textPattern.setText (pattern);
282 }
283
284 public String getTextPattern () {
285 return textPattern.getText ();
286 }
287
288 public void setTextNegPattern (String pattern) {
289 textNegPattern.setText (pattern);
290 }
291
292 public String getTextNegPattern () {
293 return textNegPattern.getText ();
294 }
295
296 public void setHTMLPattern (String pattern) {
297 htmlPattern.setText (pattern);
298 }
299
300 public String getHTMLPattern () {
301 return htmlPattern.getText ();
302 }
303
304 public void setHTMLNegPattern (String pattern) {
305 htmlNegPattern.setText (pattern);
306 }
307
308 public String getHTMLNegPattern () {
309 return htmlNegPattern.getText ();
310 }
311
312 public void setTitlePattern (String pattern) {
313 titlePattern.setText (pattern);
314 }
315
316 public String getTitlePattern () {
317 return titlePattern.getText ();
318 }
319
320 public void setTitleNegPattern (String pattern) {
321 titleNegPattern.setText (pattern);
322 }
323
324 public String getTitleNegPattern () {
325 return titleNegPattern.getText ();
326 }
327
328 public void setLabels (String pattern) {
329 labels.setText (pattern);
330 }
331
332 public String getLabels () {
333 return labels.getText ();
334 }
335
336 public void setOrTerms (boolean orTerms) {
337 this.orTerms.select (orTerms ? ANY_TERMS : ALL_TERMS);
338 }
339
340 public boolean getOrTerms () {
341 return orTerms.getSelectedItem ().equals (ANY_TERMS);
342 }
343
344 public void setScript (String script) {
345 this.script.setText (script);
346 }
347
348 public String getScript () {
349 return script != null ? script.getText () : null;
350 }
351
352 }
353 |
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