Source Code Cross Referenced for XMLExporter.java in  » Database-DBMS » perst » org » garret » perst » impl » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database DBMS » perst » org.garret.perst.impl 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        package org.garret.perst.impl;
002:
003:        import java.io.*;
004:        import java.util.Date;
005:        import java.lang.reflect.Field;
006:        import org.garret.perst.Assert;
007:        import org.garret.perst.CustomSerializable;
008:
009:        public class XMLExporter {
010:            public XMLExporter(StorageImpl storage, Writer writer) {
011:                this .storage = storage;
012:                this .writer = writer;
013:            }
014:
015:            public void exportDatabase(int rootOid) throws IOException {
016:                if (storage.encoding != null) {
017:                    writer.write("<?xml version=\"1.0\" encoding=\""
018:                            + storage.encoding + "\"?>\n");
019:                } else {
020:                    writer
021:                            .write("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n");
022:                }
023:                writer.write("<database root=\"" + rootOid + "\">\n");
024:                exportedBitmap = new int[(storage.currIndexSize + 31) / 32];
025:                markedBitmap = new int[(storage.currIndexSize + 31) / 32];
026:                markedBitmap[rootOid >> 5] |= 1 << (rootOid & 31);
027:                int nExportedObjects;
028:                do {
029:                    nExportedObjects = 0;
030:                    for (int i = 0; i < markedBitmap.length; i++) {
031:                        int mask = markedBitmap[i];
032:                        if (mask != 0) {
033:                            for (int j = 0, bit = 1; j < 32; j++, bit <<= 1) {
034:                                if ((mask & bit) != 0) {
035:                                    int oid = (i << 5) + j;
036:                                    exportedBitmap[i] |= bit;
037:                                    markedBitmap[i] &= ~bit;
038:                                    byte[] obj = storage.get(oid);
039:                                    int typeOid = ObjectHeader.getType(obj, 0);
040:                                    ClassDescriptor desc = storage
041:                                            .findClassDescriptor(typeOid);
042:                                    if (desc.cls == Btree.class) {
043:                                        exportIndex(oid, obj,
044:                                                "org.garret.perst.impl.Btree");
045:                                    } else if (desc.cls == BitIndexImpl.class) {
046:                                        exportIndex(oid, obj,
047:                                                "org.garret.perst.impl.BitIndexImpl");
048:                                    } else if (desc.cls == PersistentSet.class) {
049:                                        exportSet(oid, obj);
050:                                    } else if (desc.cls == BtreeFieldIndex.class) {
051:                                        exportFieldIndex(oid, obj,
052:                                                "org.garret.perst.impl.BtreeFieldIndex");
053:                                    } else if (desc.cls == BtreeCaseInsensitiveFieldIndex.class) {
054:                                        exportFieldIndex(oid, obj,
055:                                                "org.garret.perst.impl.BtreeCaseInsensitiveFieldIndex");
056:                                    } else if (desc.cls == BtreeMultiFieldIndex.class) {
057:                                        exportMultiFieldIndex(oid, obj,
058:                                                "org.garret.perst.impl.BtreeMultiFieldIndex");
059:                                    } else if (desc.cls == BtreeCaseInsensitiveMultiFieldIndex.class) {
060:                                        exportMultiFieldIndex(oid, obj,
061:                                                "org.garret.perst.impl.BtreeCaseInsensitiveMultiFieldIndex");
062:                                    } else if (desc.cls == BtreeCompoundIndex.class) {
063:                                        exportCompoundIndex(oid, obj);
064:                                    } else {
065:                                        String className = exportIdentifier(desc.name);
066:                                        writer.write(" <" + className
067:                                                + " id=\"" + oid + "\">\n");
068:                                        exportObject(desc, obj,
069:                                                ObjectHeader.sizeof, 2);
070:                                        writer.write(" </" + className + ">\n");
071:                                    }
072:                                    nExportedObjects += 1;
073:                                }
074:                            }
075:                        }
076:                    }
077:                } while (nExportedObjects != 0);
078:                writer.write("</database>\n");
079:                writer.flush(); // writer should be closed by calling code
080:            }
081:
082:            final String exportIdentifier(String name) {
083:                return name.replace('$', '-');
084:            }
085:
086:            final void exportSet(int oid, byte[] data) throws IOException {
087:                Btree btree = new Btree(data, ObjectHeader.sizeof);
088:                storage.assignOid(btree, oid);
089:                writer.write(" <org.garret.perst.impl.PersistentSet id=\""
090:                        + oid + "\">\n");
091:                btree.export(this );
092:                writer.write(" </org.garret.perst.impl.PersistentSet>\n");
093:            }
094:
095:            final void exportIndex(int oid, byte[] data, String name)
096:                    throws IOException {
097:                Btree btree = new Btree(data, ObjectHeader.sizeof);
098:                storage.assignOid(btree, oid);
099:                writer.write(" <" + name + " id=\"" + oid + "\" unique=\""
100:                        + (btree.unique ? '1' : '0') + "\" type=\""
101:                        + ClassDescriptor.signature[btree.type] + "\">\n");
102:                btree.export(this );
103:                writer.write(" </" + name + ">\n");
104:            }
105:
106:            final void exportFieldIndex(int oid, byte[] data, String name)
107:                    throws IOException {
108:                Btree btree = new Btree(data, ObjectHeader.sizeof);
109:                storage.assignOid(btree, oid);
110:                writer.write(" <" + name + " id=\"" + oid + "\" unique=\""
111:                        + (btree.unique ? '1' : '0') + "\"");
112:                int offs = Btree.sizeof;
113:                writer.write(" autoinc=\"" + Bytes.unpack8(data, offs) + "\"");
114:                offs += 8;
115:                writer.write(" class=");
116:                offs = exportString(data, offs);
117:                writer.write(" field=");
118:                offs = exportString(data, offs);
119:                writer.write(">\n");
120:                btree.export(this );
121:                writer.write(" </" + name + ">\n");
122:            }
123:
124:            final void exportMultiFieldIndex(int oid, byte[] data, String name)
125:                    throws IOException {
126:                Btree btree = new Btree(data, ObjectHeader.sizeof);
127:                storage.assignOid(btree, oid);
128:                writer.write(" <" + name + " id=\"" + oid + "\" unique=\""
129:                        + (btree.unique ? '1' : '0') + "\" class=");
130:                int offs = exportString(data, Btree.sizeof);
131:                int nFields = Bytes.unpack4(data, offs);
132:                offs += 4;
133:                for (int i = 0; i < nFields; i++) {
134:                    writer.write(" field" + i + "=");
135:                    offs = exportString(data, offs);
136:                }
137:                writer.write(">\n");
138:                int nTypes = Bytes.unpack4(data, offs);
139:                offs += 4;
140:                compoundKeyTypes = new int[nTypes];
141:                for (int i = 0; i < nTypes; i++) {
142:                    compoundKeyTypes[i] = Bytes.unpack4(data, offs);
143:                    offs += 4;
144:                }
145:                btree.export(this );
146:                compoundKeyTypes = null;
147:                writer.write(" </" + name + ">\n");
148:            }
149:
150:            final void exportCompoundIndex(int oid, byte[] data)
151:                    throws IOException {
152:                Btree btree = new Btree(data, ObjectHeader.sizeof);
153:                storage.assignOid(btree, oid);
154:                writer.write(" <org.garret.perst.impl.BtreeCompoundIndex id=\""
155:                        + oid + "\" unique=\"" + (btree.unique ? '1' : '0')
156:                        + "\"");
157:                int offs = Btree.sizeof;
158:                int nTypes = Bytes.unpack4(data, offs);
159:                offs += 4;
160:                compoundKeyTypes = new int[nTypes];
161:                for (int i = 0; i < nTypes; i++) {
162:                    int type = Bytes.unpack4(data, offs);
163:                    writer.write(" type" + i + "=\""
164:                            + ClassDescriptor.signature[type] + "\"");
165:
166:                    compoundKeyTypes[i] = type;
167:                    offs += 4;
168:                }
169:                writer.write(">\n");
170:                btree.export(this );
171:                compoundKeyTypes = null;
172:                writer.write(" </org.garret.perst.impl.BtreeCompoundIndex>\n");
173:            }
174:
175:            final int exportKey(byte[] body, int offs, int size, int type)
176:                    throws IOException {
177:                switch (type) {
178:                case ClassDescriptor.tpBoolean:
179:                    writer.write(body[offs++] != 0 ? "1" : "0");
180:                    break;
181:                case ClassDescriptor.tpByte:
182:                    writer.write(Integer.toString(body[offs++]));
183:                    break;
184:                case ClassDescriptor.tpChar:
185:                    writer.write(Integer.toString((char) Bytes.unpack2(body,
186:                            offs)));
187:                    offs += 2;
188:                    break;
189:                case ClassDescriptor.tpShort:
190:                    writer.write(Integer.toString(Bytes.unpack2(body, offs)));
191:                    offs += 2;
192:                    break;
193:                case ClassDescriptor.tpInt:
194:                case ClassDescriptor.tpObject:
195:                case ClassDescriptor.tpEnum:
196:                    writer.write(Integer.toString(Bytes.unpack4(body, offs)));
197:                    offs += 4;
198:                    break;
199:                case ClassDescriptor.tpLong:
200:                    writer.write(Long.toString(Bytes.unpack8(body, offs)));
201:                    offs += 8;
202:                    break;
203:                case ClassDescriptor.tpFloat:
204:                    writer.write(Float.toString(Float.intBitsToFloat(Bytes
205:                            .unpack4(body, offs))));
206:                    offs += 4;
207:                    break;
208:                case ClassDescriptor.tpDouble:
209:                    writer.write(Double.toString(Double.longBitsToDouble(Bytes
210:                            .unpack8(body, offs))));
211:                    offs += 8;
212:                    break;
213:                case ClassDescriptor.tpString:
214:                    for (int i = 0; i < size; i++) {
215:                        exportChar((char) Bytes.unpack2(body, offs));
216:                        offs += 2;
217:                    }
218:                    break;
219:                case ClassDescriptor.tpArrayOfByte:
220:                    for (int i = 0; i < size; i++) {
221:                        byte b = body[offs++];
222:                        writer.write(hexDigit[(b >>> 4) & 0xF]);
223:                        writer.write(hexDigit[b & 0xF]);
224:                    }
225:                    break;
226:                case ClassDescriptor.tpDate: {
227:                    long msec = Bytes.unpack8(body, offs);
228:                    offs += 8;
229:                    if (msec >= 0) {
230:                        writer.write(XMLImporter.httpFormatter.format(new Date(
231:                                msec)));
232:                    } else {
233:                        writer.write("null");
234:                    }
235:                    break;
236:                }
237:                default:
238:                    Assert.that(false);
239:                }
240:                return offs;
241:            }
242:
243:            final void exportCompoundKey(byte[] body, int offs, int size,
244:                    int type) throws IOException {
245:                Assert.that(type == ClassDescriptor.tpArrayOfByte);
246:                int end = offs + size;
247:                for (int i = 0; i < compoundKeyTypes.length; i++) {
248:                    type = compoundKeyTypes[i];
249:                    if (type == ClassDescriptor.tpArrayOfByte
250:                            || type == ClassDescriptor.tpString) {
251:                        size = Bytes.unpack4(body, offs);
252:                        offs += 4;
253:                    }
254:                    writer.write(" key" + i + "=\"");
255:                    offs = exportKey(body, offs, size, type);
256:                    writer.write("\"");
257:                }
258:                Assert.that(offs == end);
259:            }
260:
261:            final void exportAssoc(int oid, byte[] body, int offs, int size,
262:                    int type) throws IOException {
263:                writer.write("  <ref id=\"" + oid + "\"");
264:                if ((exportedBitmap[oid >> 5] & (1 << (oid & 31))) == 0) {
265:                    markedBitmap[oid >> 5] |= 1 << (oid & 31);
266:                }
267:                if (compoundKeyTypes != null) {
268:                    exportCompoundKey(body, offs, size, type);
269:                } else {
270:                    writer.write(" key=\"");
271:                    exportKey(body, offs, size, type);
272:                    writer.write("\"");
273:                }
274:                writer.write("/>\n");
275:            }
276:
277:            final void indentation(int indent) throws IOException {
278:                while (--indent >= 0) {
279:                    writer.write(' ');
280:                }
281:            }
282:
283:            final void exportChar(char ch) throws IOException {
284:                switch (ch) {
285:                case '<':
286:                    writer.write("&lt;");
287:                    break;
288:                case '>':
289:                    writer.write("&gt;");
290:                    break;
291:                case '&':
292:                    writer.write("&amp;");
293:                    break;
294:                case '"':
295:                    writer.write("&quot;");
296:                    break;
297:                default:
298:                    writer.write(ch);
299:                }
300:            }
301:
302:            final int exportString(byte[] body, int offs) throws IOException {
303:                int len = Bytes.unpack4(body, offs);
304:                offs += 4;
305:                if (len >= 0) {
306:                    writer.write("\"");
307:                    while (--len >= 0) {
308:                        exportChar((char) Bytes.unpack2(body, offs));
309:                        offs += 2;
310:                    }
311:                    writer.write("\"");
312:                } else if (len < -1) {
313:                    writer.write("\"");
314:                    String s;
315:                    if (storage.encoding != null) {
316:                        s = new String(body, offs, -len - 2, storage.encoding);
317:                    } else {
318:                        s = new String(body, offs, -len - 2);
319:                    }
320:                    offs -= len + 2;
321:                    for (int i = 0, n = s.length(); i < n; i++) {
322:                        exportChar(s.charAt(i));
323:                    }
324:                    writer.write("\"");
325:                } else {
326:                    writer.write("null");
327:                }
328:                return offs;
329:            }
330:
331:            static final char hexDigit[] = { '0', '1', '2', '3', '4', '5', '6',
332:                    '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
333:
334:            final int exportBinary(byte[] body, int offs) throws IOException {
335:                int len = Bytes.unpack4(body, offs);
336:                offs += 4;
337:                if (len < 0) {
338:                    if (len == -2 - ClassDescriptor.tpObject) {
339:                        exportRef(Bytes.unpack4(body, offs));
340:                        offs += 4;
341:                    } else if (len < -1) {
342:                        writer.write("\"#");
343:                        writer.write(hexDigit[-2 - len]);
344:                        len = ClassDescriptor.sizeof[-2 - len];
345:                        while (--len >= 0) {
346:                            byte b = body[offs++];
347:                            writer.write(hexDigit[(b >>> 4) & 0xF]);
348:                            writer.write(hexDigit[b & 0xF]);
349:                        }
350:                        writer.write('\"');
351:                    } else {
352:                        writer.write("null");
353:                    }
354:                } else {
355:                    writer.write('\"');
356:                    while (--len >= 0) {
357:                        byte b = body[offs++];
358:                        writer.write(hexDigit[(b >>> 4) & 0xF]);
359:                        writer.write(hexDigit[b & 0xF]);
360:                    }
361:                    writer.write('\"');
362:                }
363:                return offs;
364:            }
365:
366:            final void exportRef(int oid) throws IOException {
367:                writer.write("<ref id=\"" + oid + "\"/>");
368:                if (oid != 0
369:                        && (exportedBitmap[oid >> 5] & (1 << (oid & 31))) == 0) {
370:                    markedBitmap[oid >> 5] |= 1 << (oid & 31);
371:                }
372:            }
373:
374:            final int exportObject(ClassDescriptor desc, byte[] body, int offs,
375:                    int indent) throws IOException {
376:                ClassDescriptor.FieldDescriptor[] all = desc.allFields;
377:
378:                for (int i = 0, n = all.length; i < n; i++) {
379:                    ClassDescriptor.FieldDescriptor fd = all[i];
380:                    indentation(indent);
381:                    String fieldName = exportIdentifier(fd.fieldName);
382:                    writer.write("<" + fieldName + ">");
383:                    switch (fd.type) {
384:                    case ClassDescriptor.tpBoolean:
385:                        writer.write(body[offs++] != 0 ? "1" : "0");
386:                        break;
387:                    case ClassDescriptor.tpByte:
388:                        writer.write(Integer.toString(body[offs++]));
389:                        break;
390:                    case ClassDescriptor.tpChar:
391:                        writer.write(Integer.toString((char) Bytes.unpack2(
392:                                body, offs)));
393:                        offs += 2;
394:                        break;
395:                    case ClassDescriptor.tpShort:
396:                        writer.write(Integer
397:                                .toString(Bytes.unpack2(body, offs)));
398:                        offs += 2;
399:                        break;
400:                    case ClassDescriptor.tpInt:
401:                        writer.write(Integer
402:                                .toString(Bytes.unpack4(body, offs)));
403:                        offs += 4;
404:                        break;
405:                    case ClassDescriptor.tpLong:
406:                        writer.write(Long.toString(Bytes.unpack8(body, offs)));
407:                        offs += 8;
408:                        break;
409:                    case ClassDescriptor.tpFloat:
410:                        writer.write(Float.toString(Float.intBitsToFloat(Bytes
411:                                .unpack4(body, offs))));
412:                        offs += 4;
413:                        break;
414:                    case ClassDescriptor.tpDouble:
415:                        writer.write(Double.toString(Double
416:                                .longBitsToDouble(Bytes.unpack8(body, offs))));
417:                        offs += 8;
418:                        break;
419:                    case ClassDescriptor.tpEnum: {
420:                        int ordinal = Bytes.unpack4(body, offs);
421:                        if (ordinal < 0) {
422:                            writer.write("null");
423:                        } else {
424:                            writer.write("\""
425:                                    + ((Enum) fd.field.getType()
426:                                            .getEnumConstants()[ordinal])
427:                                            .name() + "\"");
428:                        }
429:                        offs += 4;
430:                        break;
431:                    }
432:                    case ClassDescriptor.tpString:
433:                        offs = exportString(body, offs);
434:                        break;
435:                    case ClassDescriptor.tpDate: {
436:                        long msec = Bytes.unpack8(body, offs);
437:                        offs += 8;
438:                        if (msec >= 0) {
439:                            writer.write("\""
440:                                    + XMLImporter.httpFormatter
441:                                            .format(new Date(msec)) + "\"");
442:                        } else {
443:                            writer.write("null");
444:                        }
445:                        break;
446:                    }
447:                    case ClassDescriptor.tpObject:
448:                        exportRef(Bytes.unpack4(body, offs));
449:                        offs += 4;
450:                        break;
451:                    case ClassDescriptor.tpValue:
452:                        writer.write('\n');
453:                        offs = exportObject(fd.valueDesc, body, offs,
454:                                indent + 1);
455:                        indentation(indent);
456:                        break;
457:                    case ClassDescriptor.tpRaw:
458:                    case ClassDescriptor.tpArrayOfByte:
459:                        offs = exportBinary(body, offs);
460:                        break;
461:                    case ClassDescriptor.tpCustom: {
462:                        ByteArrayInputStream in = new ByteArrayInputStream(
463:                                body, offs, body.length - offs);
464:                        CustomSerializable obj = storage.serializer.unpack(in);
465:                        String str = obj.toString();
466:                        writer.write("\"");
467:                        for (int j = 0, len = str.length(); j < len; j++) {
468:                            exportChar(str.charAt(j));
469:                        }
470:                        writer.write("\"");
471:                        offs = body.length - in.available();
472:                        break;
473:                    }
474:                    case ClassDescriptor.tpArrayOfBoolean: {
475:                        int len = Bytes.unpack4(body, offs);
476:                        offs += 4;
477:                        if (len < 0) {
478:                            writer.write("null");
479:                        } else {
480:                            writer.write('\n');
481:                            while (--len >= 0) {
482:                                indentation(indent + 1);
483:                                writer.write("<element>"
484:                                        + (body[offs++] != 0 ? "1" : "0")
485:                                        + "</element>\n");
486:                            }
487:                            indentation(indent);
488:                        }
489:                        break;
490:                    }
491:                    case ClassDescriptor.tpArrayOfChar: {
492:                        int len = Bytes.unpack4(body, offs);
493:                        offs += 4;
494:                        if (len < 0) {
495:                            writer.write("null");
496:                        } else {
497:                            writer.write('\n');
498:                            while (--len >= 0) {
499:                                indentation(indent + 1);
500:                                writer.write("<element>"
501:                                        + (Bytes.unpack2(body, offs) & 0xFFFF)
502:                                        + "</element>\n");
503:                                offs += 2;
504:                            }
505:                            indentation(indent);
506:                        }
507:                        break;
508:                    }
509:                    case ClassDescriptor.tpArrayOfShort: {
510:                        int len = Bytes.unpack4(body, offs);
511:                        offs += 4;
512:                        if (len < 0) {
513:                            writer.write("null");
514:                        } else {
515:                            writer.write('\n');
516:                            while (--len >= 0) {
517:                                indentation(indent + 1);
518:                                writer.write("<element>"
519:                                        + Bytes.unpack2(body, offs)
520:                                        + "</element>\n");
521:                                offs += 2;
522:                            }
523:                            indentation(indent);
524:                        }
525:                        break;
526:                    }
527:                    case ClassDescriptor.tpArrayOfEnum: {
528:                        int len = Bytes.unpack4(body, offs);
529:                        offs += 4;
530:                        if (len < 0) {
531:                            writer.write("null");
532:                        } else {
533:                            writer.write('\n');
534:                            Enum[] enumConstants = (Enum[]) fd.field.getType()
535:                                    .getEnumConstants();
536:                            while (--len >= 0) {
537:                                indentation(indent + 1);
538:                                int ordinal = Bytes.unpack4(body, offs);
539:                                if (ordinal < 0) {
540:                                    writer.write("null");
541:                                } else {
542:                                    writer.write("<element>\""
543:                                            + enumConstants[ordinal].name()
544:                                            + "\"</element>\n");
545:                                }
546:                                offs += 4;
547:                            }
548:                            indentation(indent);
549:                        }
550:                        break;
551:                    }
552:                    case ClassDescriptor.tpArrayOfInt: {
553:                        int len = Bytes.unpack4(body, offs);
554:                        offs += 4;
555:                        if (len < 0) {
556:                            writer.write("null");
557:                        } else {
558:                            writer.write('\n');
559:                            while (--len >= 0) {
560:                                indentation(indent + 1);
561:                                writer.write("<element>"
562:                                        + Bytes.unpack4(body, offs)
563:                                        + "</element>\n");
564:                                offs += 4;
565:                            }
566:                            indentation(indent);
567:                        }
568:                        break;
569:                    }
570:                    case ClassDescriptor.tpArrayOfLong: {
571:                        int len = Bytes.unpack4(body, offs);
572:                        offs += 4;
573:                        if (len < 0) {
574:                            writer.write("null");
575:                        } else {
576:                            writer.write('\n');
577:                            while (--len >= 0) {
578:                                indentation(indent + 1);
579:                                writer.write("<element>"
580:                                        + Bytes.unpack8(body, offs)
581:                                        + "</element>\n");
582:                                offs += 8;
583:                            }
584:                            indentation(indent);
585:                        }
586:                        break;
587:                    }
588:                    case ClassDescriptor.tpArrayOfFloat: {
589:                        int len = Bytes.unpack4(body, offs);
590:                        offs += 4;
591:                        if (len < 0) {
592:                            writer.write("null");
593:                        } else {
594:                            writer.write('\n');
595:                            while (--len >= 0) {
596:                                indentation(indent + 1);
597:                                writer.write("<element>"
598:                                        + Float.intBitsToFloat(Bytes.unpack4(
599:                                                body, offs)) + "</element>\n");
600:                                offs += 4;
601:                            }
602:                            indentation(indent);
603:                        }
604:                        break;
605:                    }
606:                    case ClassDescriptor.tpArrayOfDouble: {
607:                        int len = Bytes.unpack4(body, offs);
608:                        offs += 4;
609:                        if (len < 0) {
610:                            writer.write("null");
611:                        } else {
612:                            writer.write('\n');
613:                            while (--len >= 0) {
614:                                indentation(indent + 1);
615:                                writer.write("<element>"
616:                                        + Double.longBitsToDouble(Bytes
617:                                                .unpack8(body, offs))
618:                                        + "</element>\n");
619:                                offs += 8;
620:                            }
621:                            indentation(indent);
622:                        }
623:                        break;
624:                    }
625:                    case ClassDescriptor.tpArrayOfDate: {
626:                        int len = Bytes.unpack4(body, offs);
627:                        offs += 4;
628:                        if (len < 0) {
629:                            writer.write("null");
630:                        } else {
631:                            writer.write('\n');
632:                            while (--len >= 0) {
633:                                indentation(indent + 1);
634:                                long msec = Bytes.unpack8(body, offs);
635:                                offs += 8;
636:                                if (msec >= 0) {
637:                                    writer.write("<element>\"");
638:                                    writer.write(XMLImporter.httpFormatter
639:                                            .format(new Date(msec)));
640:                                    writer.write("\"</element>\n");
641:                                } else {
642:                                    writer.write("<element>null</element>\n");
643:                                }
644:                            }
645:                        }
646:                        break;
647:                    }
648:                    case ClassDescriptor.tpArrayOfString: {
649:                        int len = Bytes.unpack4(body, offs);
650:                        offs += 4;
651:                        if (len < 0) {
652:                            writer.write("null");
653:                        } else {
654:                            writer.write('\n');
655:                            while (--len >= 0) {
656:                                indentation(indent + 1);
657:                                writer.write("<element>");
658:                                offs = exportString(body, offs);
659:                                writer.write("</element>\n");
660:                            }
661:                            indentation(indent);
662:                        }
663:                        break;
664:                    }
665:                    case ClassDescriptor.tpLink:
666:                    case ClassDescriptor.tpArrayOfObject: {
667:                        int len = Bytes.unpack4(body, offs);
668:                        offs += 4;
669:                        if (len < 0) {
670:                            writer.write("null");
671:                        } else {
672:                            writer.write('\n');
673:                            while (--len >= 0) {
674:                                indentation(indent + 1);
675:                                int oid = Bytes.unpack4(body, offs);
676:                                if (oid != 0
677:                                        && (exportedBitmap[oid >> 5] & (1 << (oid & 31))) == 0) {
678:                                    markedBitmap[oid >> 5] |= 1 << (oid & 31);
679:                                }
680:                                writer.write("<element><ref id=\"" + oid
681:                                        + "\"/></element>\n");
682:                                offs += 4;
683:                            }
684:                            indentation(indent);
685:                        }
686:                        break;
687:                    }
688:                    case ClassDescriptor.tpArrayOfValue: {
689:                        int len = Bytes.unpack4(body, offs);
690:                        offs += 4;
691:                        if (len < 0) {
692:                            writer.write("null");
693:                        } else {
694:                            writer.write('\n');
695:                            while (--len >= 0) {
696:                                indentation(indent + 1);
697:                                writer.write("<element>\n");
698:                                offs = exportObject(fd.valueDesc, body, offs,
699:                                        indent + 2);
700:                                indentation(indent + 1);
701:                                writer.write("</element>\n");
702:                            }
703:                            indentation(indent);
704:                        }
705:                        break;
706:                    }
707:                    case ClassDescriptor.tpArrayOfRaw: {
708:                        int len = Bytes.unpack4(body, offs);
709:                        offs += 4;
710:                        if (len < 0) {
711:                            writer.write("null");
712:                        } else {
713:                            writer.write('\n');
714:                            while (--len >= 0) {
715:                                indentation(indent + 1);
716:                                writer.write("<element>");
717:                                offs = exportBinary(body, offs);
718:                                writer.write("</element>\n");
719:                            }
720:                            indentation(indent);
721:                        }
722:                        break;
723:                    }
724:                    }
725:                    writer.write("</" + fieldName + ">\n");
726:                }
727:                return offs;
728:            }
729:
730:            private StorageImpl storage;
731:            private Writer writer;
732:            private int[] markedBitmap;
733:            private int[] exportedBitmap;
734:            private int[] compoundKeyTypes;
735:        }
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