- multivalued properties support in rss reader
[mir.git] / source / mircoders / localizer / basic / MirBasicDataModelLocalizer.java
1 /*
2  * Copyright (C) 2001, 2002 The Mir-coders group
3  *
4  * This file is part of Mir.
5  *
6  * Mir is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * Mir is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with Mir; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
19  *
20  * In addition, as a special exception, The Mir-coders gives permission to link
21  * the code of this program with  any library licensed under the Apache Software License,
22  * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23  * (or with modified versions of the above that use the same license as the above),
24  * and distribute linked combinations including the two.  You must obey the
25  * GNU General Public License in all respects for all of the code used other than
26  * the above mentioned libraries.  If you modify this file, you may extend this
27  * exception to your version of the file, but you are not obligated to do so.
28  * If you do not wish to do so, delete this exception statement from your version.
29  */
30 package mircoders.localizer.basic;
31
32 import java.util.HashMap;
33 import java.util.Iterator;
34 import java.util.List;
35 import java.util.Map;
36 import java.util.Vector;
37
38 import mir.config.MirPropertiesConfiguration;
39 import mir.entity.Entity;
40 import mir.entity.adapter.EntityAdapter;
41 import mir.entity.adapter.EntityAdapterDefinition;
42 import mir.entity.adapter.EntityAdapterModel;
43 import mir.log.LoggerWrapper;
44 import mir.media.MediaHelper;
45 import mir.media.MirMedia;
46 import mir.util.ParameterExpander;
47 import mir.util.RewindableIterator;
48 import mircoders.entity.EntityUploadedMedia;
49 import mircoders.global.MirGlobal;
50 import mircoders.localizer.MirAdminInterfaceLocalizer;
51 import mircoders.localizer.MirDataModelLocalizer;
52 import mircoders.localizer.MirLocalizerExc;
53 import mircoders.localizer.MirLocalizerFailure;
54 import mircoders.storage.DatabaseArticleType;
55 import mircoders.storage.DatabaseAudio;
56 import mircoders.storage.DatabaseBreaking;
57 import mircoders.storage.*;
58 import mircoders.storage.DatabaseCommentStatus;
59 import mircoders.storage.DatabaseContent;
60 import mircoders.storage.DatabaseImageType;
61 import mircoders.storage.DatabaseImages;
62 import mircoders.storage.DatabaseLanguage;
63 import mircoders.storage.DatabaseMedia;
64 import mircoders.storage.DatabaseMediaType;
65 import mircoders.storage.DatabaseMediafolder;
66 import mircoders.storage.DatabaseMessages;
67 import mircoders.storage.DatabaseOther;
68 import mircoders.storage.DatabaseTopics;
69 import mircoders.storage.DatabaseUploadedMedia;
70 import mircoders.storage.DatabaseUsers;
71 import mircoders.storage.DatabaseVideo;
72
73 public class MirBasicDataModelLocalizer implements MirDataModelLocalizer {
74   protected LoggerWrapper logger;
75   protected MirPropertiesConfiguration configuration;
76
77   public MirBasicDataModelLocalizer() throws MirLocalizerFailure, MirLocalizerExc {
78     logger = new LoggerWrapper("Localizer.DataModel");
79
80     try {
81       configuration = MirPropertiesConfiguration.instance();
82     }
83     catch (Throwable e) {
84       throw new MirLocalizerFailure("Can't get configuration: " + e.getMessage(), e);
85     }
86   }
87
88   protected void constructContentAdapterDefinition(EntityAdapterDefinition anEntityAdapterDefinition) throws MirLocalizerFailure, MirLocalizerExc {
89     try {
90       anEntityAdapterDefinition.addDBDateField("creationdate", "webdb_create");
91       anEntityAdapterDefinition.addDBDateField("changedate", "webdb_lastchange");
92       anEntityAdapterDefinition.addMirDateField("date", "date");
93       anEntityAdapterDefinition.addCalculatedField("to_topics", new ContentToTopicsField());
94       anEntityAdapterDefinition.addCalculatedField("to_comments", new ContentToCommentsField());
95       anEntityAdapterDefinition.addCalculatedField("language", new ContentToLanguageField());
96
97       anEntityAdapterDefinition.addCalculatedField("commentcount", new ContentCommentCountField(" and is_published='1'"));
98       anEntityAdapterDefinition.addCalculatedField("fullcommentcount", new ContentCommentCountField(""));
99
100       anEntityAdapterDefinition.addCalculatedField("to_uploaded_media", new ContentToMediaField( "uploadedMedia" ));
101       anEntityAdapterDefinition.addCalculatedField("to_media_images",  new ContentToMediaField( "image" ));
102       anEntityAdapterDefinition.addCalculatedField("to_media_audio", new ContentToMediaField( "audio" ));
103       anEntityAdapterDefinition.addCalculatedField("to_media_video", new ContentToMediaField( "video" ));
104       anEntityAdapterDefinition.addCalculatedField("to_media_other", new ContentToMediaField( "otherMedia" ));
105       anEntityAdapterDefinition.addCalculatedField("to_all_uploaded_media", new ContentToMediaField( "uploadedMedia", false));
106       anEntityAdapterDefinition.addCalculatedField("to_all_media_images",  new ContentToMediaField( "image", false));
107       anEntityAdapterDefinition.addCalculatedField("to_all_media_audio", new ContentToMediaField( "audio", false));
108       anEntityAdapterDefinition.addCalculatedField("to_all_media_video", new ContentToMediaField( "video", false));
109       anEntityAdapterDefinition.addCalculatedField("to_all_media_other", new ContentToMediaField( "otherMedia", false));
110       anEntityAdapterDefinition.addCalculatedField("to_media_icon", new ContentToIconField());
111
112       anEntityAdapterDefinition.addCalculatedField("article_type", new ContentToArticleTypeField());
113
114       anEntityAdapterDefinition.addCalculatedField("description_parsed", new FilteredField("description"));
115       anEntityAdapterDefinition.addCalculatedField("content_data_parsed", new FilteredField("content_data"));
116
117       anEntityAdapterDefinition.addCalculatedField("children", new ContentToChildrenField());
118       anEntityAdapterDefinition.addCalculatedField("parent", new ContentToParentField());
119
120       anEntityAdapterDefinition.addCalculatedField("publicurl", new ExpandedField(configuration.getString("Article.PublicUrl")));
121
122       anEntityAdapterDefinition.addCalculatedField("operations",
123           new EntityToSimpleOperationsField(MirGlobal.localizer().adminInterface().simpleArticleOperations()));
124     }
125     catch (Throwable t) {
126       throw new MirLocalizerFailure(t.getMessage(), t);
127     }
128   }
129
130   protected void constructCommentAdapterDefinition(EntityAdapterDefinition anEntityAdapterDefinition) throws MirLocalizerFailure {
131     try {
132       anEntityAdapterDefinition.addDBDateField("creationdate", "webdb_create");
133       anEntityAdapterDefinition.addCalculatedField("to_content", new CommentToContentField());
134       anEntityAdapterDefinition.addCalculatedField("status", new CommentToStatusField());
135
136       anEntityAdapterDefinition.addCalculatedField("to_uploaded_media", new CommentToMediaField( "uploadedMedia" ));
137       anEntityAdapterDefinition.addCalculatedField("to_media_images",  new CommentToMediaField( "image" ));
138       anEntityAdapterDefinition.addCalculatedField("to_media_audio", new CommentToMediaField( "audio" ));
139       anEntityAdapterDefinition.addCalculatedField("to_media_video", new CommentToMediaField( "video" ));
140       anEntityAdapterDefinition.addCalculatedField("to_media_other", new CommentToMediaField( "otherMedia" ));
141       anEntityAdapterDefinition.addCalculatedField("to_all_uploaded_media", new CommentToMediaField( "uploadedMedia", false));
142       anEntityAdapterDefinition.addCalculatedField("to_all_media_images",  new CommentToMediaField( "image", false));
143       anEntityAdapterDefinition.addCalculatedField("to_all_media_audio", new CommentToMediaField( "audio", false));
144       anEntityAdapterDefinition.addCalculatedField("to_all_media_video", new CommentToMediaField( "video", false));
145       anEntityAdapterDefinition.addCalculatedField("to_all_media_other", new CommentToMediaField( "otherMedia", false));
146
147       anEntityAdapterDefinition.addCalculatedField("publicurl", new ExpandedField(configuration.getString("Comment.PublicUrl")));
148
149       anEntityAdapterDefinition.addCalculatedField("description_parsed", new FilteredField("description"));
150       anEntityAdapterDefinition.addCalculatedField("operations",
151           new EntityToSimpleOperationsField(MirGlobal.localizer().adminInterface().simpleCommentOperations()));
152     }
153     catch (Throwable t) {
154       throw new MirLocalizerFailure(t.getMessage(), t);
155     }
156   }
157
158   public EntityAdapterModel adapterModel() throws MirLocalizerFailure, MirLocalizerExc {
159     EntityAdapterModel result = new EntityAdapterModel();
160
161     try {
162       EntityAdapterDefinition definition;
163
164       definition = new EntityAdapterDefinition();
165       constructContentAdapterDefinition( definition );
166       result.addMapping( "content", DatabaseContent.getInstance(), definition);
167
168       definition = new EntityAdapterDefinition();
169       constructCommentAdapterDefinition( definition );
170       result.addMapping( "comment", DatabaseComment.getInstance(), definition);
171
172       result.addMapping( "articleType", DatabaseArticleType.getInstance(), new EntityAdapterDefinition());
173       result.addMapping( "commentStatus", DatabaseCommentStatus.getInstance(), new EntityAdapterDefinition());
174
175       definition = new EntityAdapterDefinition();
176       definition.addDBDateField("creationdate", "webdb_create");
177       result.addMapping( "breakingNews", DatabaseBreaking.getInstance(), definition);
178
179       result.addMapping( "imageType", DatabaseImageType.getInstance(), new EntityAdapterDefinition());
180       result.addMapping( "language", DatabaseLanguage.getInstance(), new EntityAdapterDefinition());
181       result.addMapping( "mediaFolder", DatabaseMediafolder.getInstance(), new EntityAdapterDefinition());
182       result.addMapping( "mediaType", DatabaseMediaType.getInstance(), new EntityAdapterDefinition());
183       result.addMapping( "internalMessage", DatabaseMessages.getInstance(), new EntityAdapterDefinition());
184       result.addMapping( "topic", DatabaseTopics.getInstance(), new EntityAdapterDefinition());
185       result.addMapping( "user", DatabaseUsers.getInstance(), new EntityAdapterDefinition());
186       result.addMapping( "media", DatabaseMedia.getInstance(), new EntityAdapterDefinition());
187       result.addMapping( "uploadedMedia", DatabaseUploadedMedia.getInstance(), new EntityAdapterDefinition());
188       result.addMapping( "image", DatabaseImages.getInstance(), new EntityAdapterDefinition());
189       result.addMapping( "audio", DatabaseAudio.getInstance(), new EntityAdapterDefinition());
190       result.addMapping( "video", DatabaseVideo.getInstance(), new EntityAdapterDefinition());
191       result.addMapping( "otherMedia", DatabaseOther.getInstance(), new EntityAdapterDefinition());
192
193       result.addMapping( "content_x_topic", DatabaseContentToTopics.getInstance(), new EntityAdapterDefinition());
194
195     }
196     catch (Throwable t) {
197       throw new MirLocalizerFailure(t.getMessage(), t);
198     }
199
200     return result;
201   }
202
203   protected class CommentToContentField implements EntityAdapterDefinition.CalculatedField {
204     public Object getValue(EntityAdapter anEntityAdapter) {
205       try {
206         return anEntityAdapter.getToOneRelation(
207                     "id="+anEntityAdapter.get("to_media"),
208                     "id",
209                     "content" );
210       }
211       catch (Throwable t) {
212         throw new RuntimeException(t.getMessage());
213       }
214     }
215   }
216
217   protected class CommentToStatusField implements EntityAdapterDefinition.CalculatedField {
218     public Object getValue(EntityAdapter anEntityAdapter) {
219       try {
220         return anEntityAdapter.getToOneRelation(
221                     "id="+anEntityAdapter.get("to_comment_status"),
222                     "id",
223                     "commentStatus" );
224       }
225       catch (Throwable t) {
226         throw new RuntimeException(t.getMessage());
227       }
228     }
229   }
230
231   protected class EntityToSimpleOperationsField implements EntityAdapterDefinition.CalculatedField {
232     private List operations;
233
234     public EntityToSimpleOperationsField(List anOperations) {
235       operations = anOperations;
236     }
237
238     public Object getValue(EntityAdapter anEntityAdapter) {
239       try {
240         Iterator i = operations.iterator();
241         List availableOperations = new Vector();
242
243         while (i.hasNext()) {
244           MirAdminInterfaceLocalizer.MirSimpleEntityOperation operation =
245             (MirAdminInterfaceLocalizer.MirSimpleEntityOperation) i.next();
246
247           if (operation.isAvailable(anEntityAdapter)) {
248             availableOperations.add(operation.getName());
249           }
250         };
251
252         return availableOperations;
253       }
254       catch (Throwable t) {
255         throw new RuntimeException(t.getMessage());
256       }
257     }
258   }
259
260   protected class FilteredField implements EntityAdapterDefinition.CalculatedField {
261     private String fieldName;
262
263     public FilteredField(String aFieldName) {
264       fieldName = aFieldName;
265     }
266
267     public Object getValue(EntityAdapter anEntityAdapter) {
268       try {
269         if (anEntityAdapter.get("is_html")!=null && anEntityAdapter.get("is_html").equals("1")) {
270           return MirGlobal.localizer().producerAssistant().filterHTMLText((String) anEntityAdapter.get(fieldName));
271         }
272         else {
273           return MirGlobal.localizer().producerAssistant().filterNonHTMLText((String) anEntityAdapter.get(fieldName));
274         }
275       }
276       catch (Throwable t) {
277         throw new RuntimeException(t.getMessage());
278       }
279     }
280   }
281
282   protected class ExpandedField implements EntityAdapterDefinition.CalculatedField {
283     private String expression;
284
285     public ExpandedField(String anExpression) {
286       expression = anExpression;
287     }
288
289     public Object getValue(EntityAdapter anEntityAdapter) {
290       try {
291         return ParameterExpander.expandExpression(anEntityAdapter, expression);
292       }
293       catch (Throwable t) {
294         throw new RuntimeException(t.getMessage());
295       }
296     }
297   }
298
299   protected class EvaluatedField implements EntityAdapterDefinition.CalculatedField {
300     private String expression;
301
302     public EvaluatedField(String anExpression) {
303       expression = anExpression;
304     }
305
306     public Object getValue(EntityAdapter anEntityAdapter) {
307       try {
308         return ParameterExpander.evaluateExpression(anEntityAdapter, expression);
309       }
310       catch (Throwable t) {
311         throw new RuntimeException(t.getMessage());
312       }
313     }
314   }
315
316   protected class ContentToParentField implements EntityAdapterDefinition.CalculatedField {
317     public Object getValue(EntityAdapter anEntityAdapter) {
318       try {
319         logger.debug("ContentToParentField.getValue");
320         return anEntityAdapter.getToOneRelation(
321                     "id="+anEntityAdapter.get("to_content"),
322                     "id",
323                     "content" );
324       }
325       catch (Throwable t) {
326         throw new RuntimeException(t.getMessage());
327       }
328     }
329   }
330
331   protected class ContentToChildrenField implements EntityAdapterDefinition.CalculatedField {
332     public Object getValue(EntityAdapter anEntityAdapter) {
333       try {
334         return anEntityAdapter.getRelation(
335                     "to_content="+anEntityAdapter.get("id"),
336                     "id",
337                     "content" );
338       }
339       catch (Throwable t) {
340         throw new RuntimeException(t.getMessage());
341       }
342     }
343   }
344
345   protected class ContentToLanguageField implements EntityAdapterDefinition.CalculatedField {
346     public Object getValue(EntityAdapter anEntityAdapter) {
347       try {
348         return anEntityAdapter.getToOneRelation(
349                     "id="+anEntityAdapter.get("to_language"),
350                     "id",
351                     "language" );
352       }
353       catch (Throwable t) {
354         throw new RuntimeException(t.getMessage());
355       }
356     }
357   }
358
359   protected class ContentToArticleTypeField implements EntityAdapterDefinition.CalculatedField {
360     public Object getValue(EntityAdapter anEntityAdapter) {
361       try {
362         return anEntityAdapter.getToOneRelation(
363                     "id="+anEntityAdapter.get("to_article_type"),
364                     "id",
365                     "articleType" );
366       }
367       catch (Throwable t) {
368         throw new RuntimeException(t.getMessage());
369       }
370     }
371   }
372
373   protected class ContentToCommentsField implements EntityAdapterDefinition.CalculatedField {
374     public Object getValue(EntityAdapter anEntityAdapter) {
375       try {
376         return anEntityAdapter.getRelation(
377                     "to_media="+anEntityAdapter.get("id")+" and is_published='1'",
378                     "webdb_create",
379                     "comment" );
380       }
381       catch (Throwable t) {
382         throw new RuntimeException(t.getMessage());
383       }
384     }
385   }
386
387   protected class ContentToTopicsField implements EntityAdapterDefinition.CalculatedField {
388     private String topicCondition;
389
390     public ContentToTopicsField() {
391       this(null);
392     }
393
394     public ContentToTopicsField(String aTopicCondition) {
395       topicCondition = aTopicCondition;
396     }
397
398     public Object getValue(EntityAdapter anEntityAdapter) {
399       try {
400         String condition = "exists (select * from content_x_topic where content_id="+anEntityAdapter.get("id")+" and topic_id=id)";
401         if (topicCondition!=null && topicCondition.length()>0)
402           condition = "(" + topicCondition + ") and " + condition;
403
404         return anEntityAdapter.getRelation(
405                     condition,
406                     "title",
407                     "topic" );
408       }
409       catch (Throwable t) {
410         throw new RuntimeException(t.getMessage());
411       }
412     }
413   }
414
415   protected class ContentToMediaField implements EntityAdapterDefinition.CalculatedField {
416     private String definition;
417     private boolean published;
418
419     public ContentToMediaField(String aDefinition, boolean anOnlyPublished) {
420       definition = aDefinition;
421       published = anOnlyPublished;
422     }
423
424     public ContentToMediaField(String aDefinition) {
425       this(aDefinition, true);
426     }
427
428     public Object getValue(EntityAdapter anEntityAdapter) {
429       try {
430         String condition = "exists (select * from content_x_media where content_id="+anEntityAdapter.get("id")+" and media_id=id)";
431         if (published)
432           condition = "is_published='t' and " + condition;
433         return anEntityAdapter.getRelation(
434            condition,
435           "id",
436           definition);
437       }
438       catch (Throwable t) {
439         throw new RuntimeException(t.getMessage());
440       }
441     }
442   }
443
444   protected class CommentToMediaField implements EntityAdapterDefinition.CalculatedField {
445     private String definition;
446     private boolean published;
447
448     public CommentToMediaField(String aDefinition, boolean anOnlyPublished) {
449       definition = aDefinition;
450       published = anOnlyPublished;
451     }
452
453     public CommentToMediaField(String aDefinition) {
454       this(aDefinition, true);
455     }
456
457     public Object getValue(EntityAdapter anEntityAdapter) {
458       try {
459         String condition = "exists (select * from comment_x_media where comment_id="+anEntityAdapter.get("id")+" and media_id=id)";
460         if (published)
461           condition = "is_published='t' and " + condition;
462         return anEntityAdapter.getRelation(
463            condition,
464           "id",
465           definition);
466       }
467       catch (Throwable t) {
468         throw new RuntimeException(t.getMessage());
469       }
470     }
471   }
472
473   protected class ContentToIconField implements EntityAdapterDefinition.CalculatedField {
474     public Object getValue(EntityAdapter anEntityAdapter) {
475       EntityAdapter media;
476       Entity mediaType;
477       RewindableIterator iterator;
478       Map result;
479       MirMedia mediaHandler;
480       String tinyIcon;
481       String iconAlt;
482
483       try {
484         iterator = (RewindableIterator) (anEntityAdapter.get("to_uploaded_media"));
485         iterator.rewind();
486
487         tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyText");
488         iconAlt = "Text";
489
490         if (iterator.hasNext()) {
491           media = (EntityAdapter) iterator.next();
492
493           mediaType = ((EntityUploadedMedia) (media.getEntity())).getMediaType();
494           mediaHandler = MediaHelper.getHandler( mediaType );
495
496           if (mediaHandler.isVideo()) {
497             tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyVideo");
498             iconAlt = "Video";
499           }
500           else if (mediaHandler.isAudio()) {
501             tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyAudio");
502             iconAlt = "Audio";
503           }
504           else if (mediaHandler.isImage()) {
505             tinyIcon = MirGlobal.config().getString("Producer.Icon.TinyImage");
506             iconAlt = "Image";
507           }
508           else {
509             tinyIcon = mediaHandler.getTinyIconName();
510             iconAlt = mediaHandler.getIconAltName();
511           }
512
513         }
514       }
515       catch (Throwable t) {
516         logger.error("ContentToIconField: " +t.getMessage());
517         throw new RuntimeException(t.getMessage());
518       }
519
520       result = new HashMap();
521       result.put("tiny_icon", MirGlobal.config().getString("Producer.ImageRoot") + "/" + tinyIcon);
522       result.put("icon_alt", iconAlt);
523
524       return result;
525     }
526   }
527
528   protected class ContentCommentCountField implements EntityAdapterDefinition.CalculatedField {
529     private String extraCondition;
530
531     public ContentCommentCountField(String anExtraCondition) {
532       super();
533
534       extraCondition = anExtraCondition;
535     }
536
537     public Object getValue(EntityAdapter anEntityAdapter) {
538       try {
539         return Integer.toString(
540             DatabaseComment.getInstance().getSize(
541                   "to_media="+anEntityAdapter.get("id")+" " + extraCondition));
542       }
543       catch (Throwable t) {
544         throw new RuntimeException(t.getMessage());
545       }
546     }
547   }
548 }