Source Code Cross Referenced for XmlFileFunctions.java in  » Groupware » LibreSource » org » libresource » so6 » core » tf » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Groupware » LibreSource » org.libresource.so6.core.tf 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /**
002:         * LibreSource
003:         * Copyright (C) 2004-2008 Artenum SARL / INRIA
004:         * http://www.libresource.org - contact@artenum.com
005:         *
006:         * This file is part of the LibreSource software, 
007:         * which can be used and distributed under license conditions.
008:         * The license conditions are provided in the LICENSE.TXT file 
009:         * at the root path of the packaging that enclose this file. 
010:         * More information can be found at 
011:         * - http://dev.libresource.org/home/license
012:         *
013:         * Initial authors :
014:         *
015:         * Guillaume Bort / INRIA
016:         * Francois Charoy / Universite Nancy 2
017:         * Julien Forest / Artenum
018:         * Claude Godart / Universite Henry Poincare
019:         * Florent Jouille / INRIA
020:         * Sebastien Jourdain / INRIA / Artenum
021:         * Yves Lerumeur / Artenum
022:         * Pascal Molli / Universite Henry Poincare
023:         * Gerald Oster / INRIA
024:         * Mariarosa Penzi / Artenum
025:         * Gerard Sookahet / Artenum
026:         * Raphael Tani / INRIA
027:         *
028:         * Contributors :
029:         *
030:         * Stephane Bagnier / Artenum
031:         * Amadou Dia / Artenum-IUP Blois
032:         * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
033:         */package org.libresource.so6.core.tf;
034:
035:        import fr.loria.ecoo.so6.xml.util.XmlUtil;
036:
037:        import org.libresource.so6.core.WsConnection;
038:        import org.libresource.so6.core.command.Command;
039:        import org.libresource.so6.core.command.Id;
040:        import org.libresource.so6.core.command.NoOp;
041:        import org.libresource.so6.core.command.xml.DeleteAttribute;
042:        import org.libresource.so6.core.command.xml.DeleteNode;
043:        import org.libresource.so6.core.command.xml.InsertAttribute;
044:        import org.libresource.so6.core.command.xml.InsertNode;
045:        import org.libresource.so6.core.command.xml.UpdateAttribute;
046:        import org.libresource.so6.core.command.xml.UpdateXmlFile;
047:        import org.libresource.so6.core.engine.util.ObjectCloner;
048:
049:        import java.lang.reflect.Method;
050:
051:        import java.util.ArrayList;
052:        import java.util.Iterator;
053:        import java.util.StringTokenizer;
054:
055:        /**
056:         * @author Ecoo Team Loria
057:         */
058:        public class XmlFileFunctions {
059:            private WsConnection ws;
060:
061:            public XmlFileFunctions(WsConnection ws) {
062:                this .ws = ws;
063:            }
064:
065:            public Command transp(UpdateXmlFile c1, UpdateXmlFile c2)
066:                    throws Exception {
067:                Command res = null;
068:                Method m = null;
069:
070:                try {
071:                    // Make transformation only if needed
072:                    if (c1.getPath().equals(c2.getPath())) {
073:                        m = this .getClass().getMethod("tf",
074:                                new Class[] { c1.getClass(), c2.getClass() });
075:                    } else {
076:                        return c1;
077:                    }
078:                } catch (NoSuchMethodException e1) {
079:                    try {
080:                        m = this .getClass().getMethod(
081:                                "tf",
082:                                new Class[] { c1.getClass().getSuperclass(),
083:                                        c2.getClass() });
084:                    } catch (NoSuchMethodException e2) {
085:                        try {
086:                            m = this .getClass().getMethod(
087:                                    "tf",
088:                                    new Class[] { c1.getClass(),
089:                                            c2.getClass().getSuperclass() });
090:                        } catch (NoSuchMethodException e3) {
091:                            m = this .getClass().getMethod(
092:                                    "tf",
093:                                    new Class[] {
094:                                            c1.getClass().getSuperclass(),
095:                                            c2.getClass().getSuperclass() });
096:                        }
097:                    }
098:                }
099:
100:                //System.out.println("Tf: " + c1 + "\n " + c2);
101:                //System.out.println("method: "+m);
102:                Command c = (Command) m.invoke(this , new Object[] { c1, c2 });
103:
104:                //System.out.println("return: " + c);
105:                return c;
106:            }
107:
108:            /*
109:             * Take care of XML commands - InsertNode - DeleteNode - UpdateNode -
110:             * MoveNode - InsertProcessingInstructionNode - InsertAttribute -
111:             * DeleteAttribute - UpdateAttribute - SetDocumentType - InsertSubTree
112:             */
113:
114:            /**
115:             * InsertNode
116:             */
117:            public Command tf(InsertNode c1, InsertNode c2) throws Exception {
118:                String p1 = XmlUtil.getParentPath(c1.getNodePath());
119:                String p2 = XmlUtil.getParentPath(c2.getNodePath());
120:                int pos2 = getChildPos(c2.getNodePath());
121:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
122:
123:                if (p1.equals(p2)) {
124:                    int pos1 = getChildPos(c1.getNodePath());
125:
126:                    if (pos1 < pos2) {
127:                        return c1;
128:                    } else if (pos1 == pos2) {
129:                        if (c1.getTicket() == -1) {
130:                            clone.setNodePath(setChildIndex(getDepth(clone
131:                                    .getNodePath()), clone.getNodePath(),
132:                                    getChildIndex(
133:                                            getDepth(clone.getNodePath()),
134:                                            clone.getNodePath()) + 1));
135:
136:                            return clone;
137:                        } else {
138:                            // c1 remote command
139:                            return c1;
140:                        }
141:                    } else { // pos1 > pos2
142:                        clone.setNodePath(setChildIndex(getDepth(clone
143:                                .getNodePath()), clone.getNodePath(),
144:                                getChildIndex(getDepth(clone.getNodePath()),
145:                                        clone.getNodePath()) + 1));
146:
147:                        return clone;
148:                    }
149:                } else if (subsume(c1, c2)) {
150:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
151:                            .getNodePath());
152:
153:                    if (pos2 <= pos) {
154:                        clone.setNodePath(setChildIndex(getDepth(c2
155:                                .getNodePath()), clone.getNodePath(), pos + 1));
156:
157:                        return clone;
158:                    }
159:
160:                    return c1;
161:                } else {
162:                    return c1;
163:                }
164:            }
165:
166:            public Command tf(InsertNode c1, DeleteNode c2) throws Exception {
167:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
168:                int pos2 = getChildPos(c2.getNodePath());
169:
170:                if (childOf(c1, c2)) {
171:                    return new NoOp(c1, ws);
172:                } else if (subsume(c1, c2)) {
173:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
174:                            .getNodePath());
175:
176:                    if (pos2 < pos) {
177:                        clone.setNodePath(setChildIndex(getDepth(c2
178:                                .getNodePath()), clone.getNodePath(), pos - 1));
179:
180:                        return clone;
181:                    }
182:                }
183:
184:                return c1;
185:            }
186:
187:            public Command tf(InsertNode c1, InsertAttribute c2)
188:                    throws Exception {
189:                return c1;
190:            }
191:
192:            public Command tf(InsertNode c1, DeleteAttribute c2)
193:                    throws Exception {
194:                return c1;
195:            }
196:
197:            public Command tf(InsertNode c1, UpdateAttribute c2)
198:                    throws Exception {
199:                return c1;
200:            }
201:
202:            /**
203:             * DeleteNode
204:             */
205:            public Command tf(DeleteNode c1, InsertNode c2) throws Exception {
206:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
207:                int pos2 = getChildPos(c2.getNodePath());
208:
209:                if (subsume(c1, c2)) {
210:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
211:                            .getNodePath());
212:
213:                    if (pos2 <= pos) {
214:                        clone.setNodePath(setChildIndex(getDepth(c2
215:                                .getNodePath()), clone.getNodePath(), pos + 1));
216:
217:                        return clone;
218:                    }
219:                }
220:
221:                return c1;
222:            }
223:
224:            public Command tf(DeleteNode c1, DeleteNode c2) throws Exception {
225:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
226:                int pos2 = getChildPos(c2.getNodePath());
227:
228:                if (childOf(c1, c2)) {
229:                    return new NoOp(c1, ws);
230:                } else if (subsume(c1, c2)) {
231:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
232:                            .getNodePath());
233:
234:                    if (pos2 < pos) {
235:                        clone.setNodePath(setChildIndex(getDepth(c2
236:                                .getNodePath()), clone.getNodePath(), pos - 1));
237:
238:                        return clone;
239:                    }
240:                }
241:
242:                return c1;
243:            }
244:
245:            public Command tf(DeleteNode c1, InsertAttribute c2)
246:                    throws Exception {
247:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
248:                int pos2 = getChildPos(c2.getNodePath());
249:
250:                if (subsume(c1, c2)) {
251:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
252:                            .getNodePath());
253:
254:                    if (pos2 <= pos) {
255:                        clone.setNodePath(setChildIndex(getDepth(c2
256:                                .getNodePath()), clone.getNodePath(), pos + 1));
257:
258:                        return clone;
259:                    }
260:                }
261:
262:                return c1;
263:            }
264:
265:            public Command tf(DeleteNode c1, DeleteAttribute c2)
266:                    throws Exception {
267:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
268:                int pos2 = getChildPos(c2.getNodePath());
269:
270:                if (subsume(c1, c2)) {
271:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
272:                            .getNodePath());
273:
274:                    if (pos2 <= pos) {
275:                        clone.setNodePath(setChildIndex(getDepth(c2
276:                                .getNodePath()), clone.getNodePath(), pos + 1));
277:
278:                        return clone;
279:                    }
280:                }
281:
282:                return c1;
283:            }
284:
285:            public Command tf(DeleteNode c1, UpdateAttribute c2)
286:                    throws Exception {
287:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
288:                int pos2 = getChildPos(c2.getNodePath());
289:
290:                if (subsume(c1, c2)) {
291:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
292:                            .getNodePath());
293:
294:                    if (pos2 <= pos) {
295:                        clone.setNodePath(setChildIndex(getDepth(c2
296:                                .getNodePath()), clone.getNodePath(), pos + 1));
297:
298:                        return clone;
299:                    }
300:                }
301:
302:                return c1;
303:            }
304:
305:            /**
306:             * InsertAttribute
307:             */
308:            public Command tf(InsertAttribute c1, InsertNode c2)
309:                    throws Exception {
310:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
311:                int pos2 = getChildPos(c2.getNodePath());
312:
313:                if (subsume(c1, c2)) {
314:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
315:                            .getNodePath());
316:
317:                    if (pos2 <= pos) {
318:                        clone.setNodePath(setChildIndex(getDepth(c2
319:                                .getNodePath()), clone.getNodePath(), pos + 1));
320:
321:                        return clone;
322:                    }
323:                }
324:
325:                return c1;
326:            }
327:
328:            public Command tf(InsertAttribute c1, DeleteNode c2)
329:                    throws Exception {
330:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
331:                int pos2 = getChildPos(c2.getNodePath());
332:
333:                if (childOf(c1, c2)) {
334:                    return new NoOp(c1, ws);
335:                } else if (subsume(c1, c2)) {
336:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
337:                            .getNodePath());
338:
339:                    if (pos2 < pos) {
340:                        clone.setNodePath(setChildIndex(getDepth(c2
341:                                .getNodePath()), clone.getNodePath(), pos - 1));
342:
343:                        return clone;
344:                    }
345:                }
346:
347:                return c1;
348:            }
349:
350:            public Command tf(InsertAttribute c1, InsertAttribute c2)
351:                    throws Exception {
352:                if (c1.getNodePath().equals(c2.getNodePath())
353:                        && c1.getAttributeName().equals(c2.getAttributeName())) {
354:                    if (c1.getAttributeValue().equals(c2.getAttributeValue())) {
355:                        return new Id(c1, ws);
356:                    } else {
357:                        //InsertAttribute clone = (InsertAttribute)
358:                        // ObjectCloner.deepCopy(c1);
359:                        String newvalue = null;
360:                        UpdateAttribute clone = new UpdateAttribute(c1
361:                                .getTicket(), c1.getPath(), c1.getWsName(), c1
362:                                .getTime(), c1.getNodePath(), c1
363:                                .getAttributeName(), c1.getAttributeValue(),
364:                                newvalue);
365:
366:                        if (c1.getTicket() == -1) {
367:                            newvalue = c2.getAttributeValue() + "|"
368:                                    + c1.getAttributeValue();
369:                        } else {
370:                            newvalue = c1.getAttributeValue() + "|"
371:                                    + c2.getAttributeValue();
372:                        }
373:
374:                        clone.setNewValue(newvalue);
375:
376:                        //clone.setAttributeValue(newvalue);
377:                        return clone;
378:                    }
379:                } else {
380:                    return c1;
381:                }
382:            }
383:
384:            public Command tf(InsertAttribute c1, DeleteAttribute c2)
385:                    throws Exception {
386:                return c1;
387:            }
388:
389:            public Command tf(InsertAttribute c1, UpdateAttribute c2)
390:                    throws Exception {
391:                return c1;
392:            }
393:
394:            /**
395:             * DeleteAttribute
396:             */
397:            public Command tf(DeleteAttribute c1, InsertNode c2)
398:                    throws Exception {
399:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
400:                int pos2 = getChildPos(c2.getNodePath());
401:
402:                if (subsume(c1, c2)) {
403:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
404:                            .getNodePath());
405:
406:                    if (pos2 <= pos) {
407:                        clone.setNodePath(setChildIndex(getDepth(c2
408:                                .getNodePath()), clone.getNodePath(), pos + 1));
409:
410:                        return clone;
411:                    }
412:                }
413:
414:                return c1;
415:            }
416:
417:            public Command tf(DeleteAttribute c1, DeleteNode c2)
418:                    throws Exception {
419:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
420:                int pos2 = getChildPos(c2.getNodePath());
421:
422:                if (childOf(c1, c2)) {
423:                    return new NoOp(c1, ws);
424:                } else if (subsume(c1, c2)) {
425:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
426:                            .getNodePath());
427:
428:                    if (pos2 < pos) {
429:                        clone.setNodePath(setChildIndex(getDepth(c2
430:                                .getNodePath()), clone.getNodePath(), pos - 1));
431:
432:                        return clone;
433:                    }
434:                }
435:
436:                return c1;
437:            }
438:
439:            public Command tf(DeleteAttribute c1, InsertAttribute c2)
440:                    throws Exception {
441:                return c1;
442:            }
443:
444:            public Command tf(DeleteAttribute c1, DeleteAttribute c2)
445:                    throws Exception {
446:                if (c1.getNodePath().equals(c2.getNodePath())
447:                        && c1.getAttributeName().equals(c2.getAttributeName())) {
448:                    return new Id(c1, ws);
449:                } else {
450:                    return c1;
451:                }
452:            }
453:
454:            public Command tf(DeleteAttribute c1, UpdateAttribute c2)
455:                    throws Exception {
456:                return c1;
457:            }
458:
459:            /**
460:             * UpdateAttribute
461:             */
462:            public Command tf(UpdateAttribute c1, InsertNode c2)
463:                    throws Exception {
464:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
465:                int pos2 = getChildPos(c2.getNodePath());
466:
467:                if (subsume(c1, c2)) {
468:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
469:                            .getNodePath());
470:
471:                    if (pos2 <= pos) {
472:                        clone.setNodePath(setChildIndex(getDepth(c2
473:                                .getNodePath()), clone.getNodePath(), pos + 1));
474:
475:                        return clone;
476:                    }
477:                }
478:
479:                return c1;
480:            }
481:
482:            public Command tf(UpdateAttribute c1, DeleteNode c2)
483:                    throws Exception {
484:                UpdateXmlFile clone = (UpdateXmlFile) ObjectCloner.deepCopy(c1);
485:                int pos2 = getChildPos(c2.getNodePath());
486:
487:                if (childOf(c1, c2)) {
488:                    return new NoOp(c1, ws);
489:                } else if (subsume(c1, c2)) {
490:                    int pos = getChildIndex(getDepth(c2.getNodePath()), clone
491:                            .getNodePath());
492:
493:                    if (pos2 < pos) {
494:                        clone.setNodePath(setChildIndex(getDepth(c2
495:                                .getNodePath()), clone.getNodePath(), pos - 1));
496:
497:                        return clone;
498:                    }
499:                }
500:
501:                return c1;
502:            }
503:
504:            public Command tf(UpdateAttribute c1, InsertAttribute c2)
505:                    throws Exception {
506:                return c1;
507:            }
508:
509:            public Command tf(UpdateAttribute c1, DeleteAttribute c2)
510:                    throws Exception {
511:                if (c1.getNodePath().equals(c2.getNodePath())
512:                        && c1.getAttributeName().equals(c2.getAttributeName())) {
513:                    return new NoOp(c1, ws);
514:                } else {
515:                    return c1;
516:                }
517:            }
518:
519:            public Command tf(UpdateAttribute c1, UpdateAttribute c2)
520:                    throws Exception {
521:                if (c1.getNodePath().equals(c2.getNodePath())
522:                        && c1.getAttributeName().equals(c2.getAttributeName())) {
523:                    if (c1.getNewValue().equals(c2.getNewValue())) {
524:                        return new Id(c1, ws);
525:                    } else {
526:                        UpdateAttribute clone = (UpdateAttribute) ObjectCloner
527:                                .deepCopy(c1);
528:                        String newvalue;
529:
530:                        // peut etre qu'on devrait mettre a jour la oldvalue aussi ???
531:                        if (c1.getTicket() == -1) {
532:                            newvalue = c2.getNewValue() + "|"
533:                                    + c1.getNewValue();
534:                        } else {
535:                            newvalue = c1.getNewValue() + "|"
536:                                    + c2.getNewValue();
537:                        }
538:
539:                        clone.setNewValue(newvalue);
540:
541:                        return clone;
542:                    }
543:                } else {
544:                    return c1;
545:                }
546:            }
547:
548:            /**
549:             * XML Util
550:             */
551:            public boolean childOf(UpdateXmlFile c1, UpdateXmlFile c2) {
552:                return c1.getNodePath().startsWith(c2.getNodePath());
553:            }
554:
555:            // le path de C1 est subsum? par le path de C2
556:            // parent de C2 est un prefix du parent de C1
557:            public boolean subsume(UpdateXmlFile c1, UpdateXmlFile c2) {
558:                String c1Path = XmlUtil.getParentPath(c1.getNodePath());
559:                String c2ParentPath = XmlUtil.getParentPath(c2.getNodePath());
560:
561:                //System.out.println("c1:" + c1.getNodePath());
562:                //System.out.println("c2:" + c2.getNodePath());
563:                //System.out.println("subsume(c1,c2) [c2 plus petit c1]:" +
564:                // c1Path.startsWith(c2ParentPath));
565:                return c1Path.startsWith(c2ParentPath);
566:            }
567:
568:            public int getChildPos(String path) {
569:                int index = path.lastIndexOf(":");
570:
571:                if (index == -1) {
572:                    return Integer.parseInt(path);
573:                }
574:
575:                return Integer.parseInt(path.substring(index + 1));
576:            }
577:
578:            public int getChildIndex(int depth, String path) {
579:                // add for report
580:                if (path.lastIndexOf(":") == -1) {
581:                    return new Integer(path).intValue();
582:                }
583:
584:                //
585:                return Integer.parseInt((String) convertPath(path).get(depth));
586:            }
587:
588:            public String setChildIndex(int depth, String path,
589:                    int newChildIndex) {
590:                ArrayList result = convertPath(path);
591:
592:                // add for report
593:                if (result.size() == 1) {
594:                    return "0";
595:                }
596:
597:                //
598:                result.set(depth, "" + newChildIndex);
599:
600:                return convertPath(result);
601:            }
602:
603:            public int getDepth(String path) {
604:                return convertPath(path).size() - 1;
605:            }
606:
607:            public String convertPath(ArrayList path) {
608:                StringBuffer buf = new StringBuffer();
609:
610:                for (Iterator i = path.iterator(); i.hasNext();) {
611:                    buf.append(i.next());
612:
613:                    if (i.hasNext()) {
614:                        buf.append(":");
615:                    }
616:                }
617:
618:                return buf.toString();
619:            }
620:
621:            public ArrayList convertPath(String path) {
622:                ArrayList result = new ArrayList();
623:                StringTokenizer st = new StringTokenizer(path, ":");
624:
625:                while (st.hasMoreTokens()) {
626:                    result.add(st.nextToken());
627:                }
628:
629:                return result;
630:            }
631:
632:            public String[] cutHead(String nodePath) {
633:                StringBuffer buffer = new StringBuffer();
634:                buffer.append(nodePath.substring(0, nodePath.indexOf(":")));
635:                buffer.append(" ");
636:                buffer.append(nodePath.substring(nodePath.indexOf(":") + 1));
637:
638:                return buffer.toString().split(" ");
639:            }
640:
641:            public String incHeadPos(String nodePath) {
642:                String[] path = cutHead(nodePath);
643:
644:                return (Integer.parseInt(path[0]) + 1) + path[1];
645:            }
646:
647:            public String decHeadPos(String nodePath) {
648:                String[] path = cutHead(nodePath);
649:
650:                return (Integer.parseInt(path[0]) - 1) + path[1];
651:            }
652:        }
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