001
014
015 package com.liferay.portal.dao.db;
016
017 import com.liferay.counter.service.CounterLocalServiceUtil;
018 import com.liferay.portal.dao.orm.common.SQLTransformer;
019 import com.liferay.portal.kernel.dao.db.DB;
020 import com.liferay.portal.kernel.dao.db.Index;
021 import com.liferay.portal.kernel.dao.jdbc.DataAccess;
022 import com.liferay.portal.kernel.exception.SystemException;
023 import com.liferay.portal.kernel.io.unsync.UnsyncBufferedReader;
024 import com.liferay.portal.kernel.io.unsync.UnsyncStringReader;
025 import com.liferay.portal.kernel.log.Log;
026 import com.liferay.portal.kernel.log.LogFactoryUtil;
027 import com.liferay.portal.kernel.util.FileUtil;
028 import com.liferay.portal.kernel.util.GetterUtil;
029 import com.liferay.portal.kernel.util.PropertiesUtil;
030 import com.liferay.portal.kernel.util.StringBundler;
031 import com.liferay.portal.kernel.util.StringPool;
032 import com.liferay.portal.kernel.util.StringUtil;
033 import com.liferay.portal.kernel.util.Validator;
034 import com.liferay.portal.kernel.uuid.PortalUUIDUtil;
035 import com.liferay.portal.util.ClassLoaderUtil;
036 import com.liferay.portal.velocity.VelocityUtil;
037 import com.liferay.util.SimpleCounter;
038
039 import java.io.File;
040 import java.io.FileReader;
041 import java.io.IOException;
042 import java.io.InputStream;
043
044 import java.sql.Connection;
045 import java.sql.SQLException;
046 import java.sql.Statement;
047
048 import java.util.Collections;
049 import java.util.Enumeration;
050 import java.util.HashMap;
051 import java.util.HashSet;
052 import java.util.List;
053 import java.util.Map;
054 import java.util.Properties;
055 import java.util.Set;
056 import java.util.regex.Matcher;
057 import java.util.regex.Pattern;
058
059 import javax.naming.NamingException;
060
061
067 public abstract class BaseDB implements DB {
068
069 @Override
070 public void addIndexes(
071 Connection con, String indexesSQL, Set<String> validIndexNames)
072 throws IOException {
073
074 if (_log.isInfoEnabled()) {
075 _log.info("Adding indexes");
076 }
077
078 UnsyncBufferedReader bufferedReader = new UnsyncBufferedReader(
079 new UnsyncStringReader(indexesSQL));
080
081 String sql = null;
082
083 while ((sql = bufferedReader.readLine()) != null) {
084 if (Validator.isNull(sql)) {
085 continue;
086 }
087
088 int y = sql.indexOf(" on ");
089 int x = sql.lastIndexOf(" ", y - 1);
090
091 String indexName = sql.substring(x + 1, y);
092
093 if (validIndexNames.contains(indexName)) {
094 continue;
095 }
096
097 if (_log.isInfoEnabled()) {
098 _log.info(sql);
099 }
100
101 try {
102 runSQL(con, sql);
103 }
104 catch (Exception e) {
105 if (_log.isWarnEnabled()) {
106 _log.warn(e.getMessage() + ": " + sql);
107 }
108 }
109 }
110 }
111
112 @Override
113 public void buildCreateFile(String sqlDir, String databaseName)
114 throws IOException {
115
116 buildCreateFile(sqlDir, databaseName, POPULATED);
117 buildCreateFile(sqlDir, databaseName, MINIMAL);
118 buildCreateFile(sqlDir, databaseName, SHARDED);
119 }
120
121 @Override
122 public void buildCreateFile(
123 String sqlDir, String databaseName, int population)
124 throws IOException {
125
126 String suffix = getSuffix(population);
127
128 File file = new File(
129 sqlDir + "/create" + suffix + "/create" + suffix + "-" +
130 getServerName() + ".sql");
131
132 if (population != SHARDED) {
133 String content = buildCreateFileContent(
134 sqlDir, databaseName, population);
135
136 if (content != null) {
137 FileUtil.write(file, content);
138 }
139 }
140 else {
141 String content = buildCreateFileContent(
142 sqlDir, databaseName, MINIMAL);
143
144 if (content != null) {
145 FileUtil.write(file, content);
146 }
147
148 content = buildCreateFileContent(
149 sqlDir, databaseName + "1", MINIMAL);
150
151 if (content != null) {
152 FileUtil.write(file, content, false, true);
153 }
154
155 content = buildCreateFileContent(
156 sqlDir, databaseName + "2", MINIMAL);
157
158 if (content != null) {
159 FileUtil.write(file, content, false, true);
160 }
161 }
162 }
163
164 @Override
165 public abstract String buildSQL(String template) throws IOException;
166
167 @Override
168 public void buildSQLFile(String sqlDir, String fileName)
169 throws IOException {
170
171 String template = buildTemplate(sqlDir, fileName);
172
173 if (Validator.isNull(template)) {
174 return;
175 }
176
177 template = buildSQL(template);
178
179 FileUtil.write(
180 sqlDir + "/" + fileName + "/" + fileName + "-" + getServerName() +
181 ".sql",
182 template);
183 }
184
185 @Override
186 @SuppressWarnings("unused")
187 public List<Index> getIndexes(Connection con) throws SQLException {
188 return Collections.emptyList();
189 }
190
191 @Override
192 public String getTemplateFalse() {
193 return getTemplate()[2];
194 }
195
196 @Override
197 public String getTemplateTrue() {
198 return getTemplate()[1];
199 }
200
201 @Override
202 public String getType() {
203 return _type;
204 }
205
206 @Override
207 public long increment() throws SystemException {
208 return CounterLocalServiceUtil.increment();
209 }
210
211 @Override
212 public long increment(String name) throws SystemException {
213 return CounterLocalServiceUtil.increment(name);
214 }
215
216 @Override
217 public boolean isSupportsAlterColumnName() {
218 return _SUPPORTS_ALTER_COLUMN_NAME;
219 }
220
221 @Override
222 public boolean isSupportsAlterColumnType() {
223 return _SUPPORTS_ALTER_COLUMN_TYPE;
224 }
225
226 @Override
227 public boolean isSupportsDateMilliseconds() {
228 return _SUPPORTS_DATE_MILLISECONDS;
229 }
230
231 @Override
232 public boolean isSupportsInlineDistinct() {
233 return _SUPPORTS_INLINE_DISTINCT;
234 }
235
236 @Override
237 public boolean isSupportsQueryingAfterException() {
238 return _SUPPORTS_QUERYING_AFTER_EXCEPTION;
239 }
240
241 @Override
242 public boolean isSupportsScrollableResults() {
243 return _SUPPORTS_SCROLLABLE_RESULTS;
244 }
245
246 @Override
247 public boolean isSupportsStringCaseSensitiveQuery() {
248 return _supportsStringCaseSensitiveQuery;
249 }
250
251 @Override
252 public boolean isSupportsUpdateWithInnerJoin() {
253 return _SUPPORTS_UPDATE_WITH_INNER_JOIN;
254 }
255
256 @Override
257 public void runSQL(Connection con, String sql)
258 throws IOException, SQLException {
259
260 runSQL(con, new String[] {sql});
261 }
262
263 @Override
264 public void runSQL(Connection con, String[] sqls)
265 throws IOException, SQLException {
266
267 Statement s = null;
268
269 try {
270 s = con.createStatement();
271
272 for (int i = 0; i < sqls.length; i++) {
273 String sql = buildSQL(sqls[i]);
274
275 sql = SQLTransformer.transform(sql.trim());
276
277 if (sql.endsWith(";")) {
278 sql = sql.substring(0, sql.length() - 1);
279 }
280
281 if (sql.endsWith("go")) {
282 sql = sql.substring(0, sql.length() - 2);
283 }
284
285 if (_log.isDebugEnabled()) {
286 _log.debug(sql);
287 }
288
289 try {
290 s.executeUpdate(sql);
291 }
292 catch (SQLException sqle) {
293 handleSQLException(sql, sqle);
294 }
295 }
296 }
297 finally {
298 DataAccess.cleanUp(s);
299 }
300 }
301
302 @Override
303 public void runSQL(String sql) throws IOException, SQLException {
304 runSQL(new String[] {sql});
305 }
306
307 @Override
308 public void runSQL(String[] sqls) throws IOException, SQLException {
309 Connection con = DataAccess.getConnection();
310
311 try {
312 runSQL(con, sqls);
313 }
314 finally {
315 DataAccess.cleanUp(con);
316 }
317 }
318
319 @Override
320 public void runSQLTemplate(String path)
321 throws IOException, NamingException, SQLException {
322
323 runSQLTemplate(path, true);
324 }
325
326 @Override
327 public void runSQLTemplate(String path, boolean failOnError)
328 throws IOException, NamingException, SQLException {
329
330 ClassLoader classLoader = ClassLoaderUtil.getContextClassLoader();
331
332 InputStream is = classLoader.getResourceAsStream(
333 "com/liferay/portal/tools/sql/dependencies/" + path);
334
335 if (is == null) {
336 is = classLoader.getResourceAsStream(path);
337 }
338
339 if (is == null) {
340 _log.error("Invalid path " + path);
341
342 if (failOnError) {
343 throw new IOException("Invalid path " + path);
344 }
345 else {
346 return;
347 }
348 }
349
350 String template = StringUtil.read(is);
351
352 boolean evaluate = path.endsWith(".vm");
353
354 runSQLTemplateString(template, evaluate, failOnError);
355 }
356
357 @Override
358 public void runSQLTemplateString(
359 String template, boolean evaluate, boolean failOnError)
360 throws IOException, NamingException, SQLException {
361
362 if (evaluate) {
363 try {
364 template = evaluateVM(template);
365 }
366 catch (Exception e) {
367 _log.error(e, e);
368 }
369 }
370
371 StringBundler sb = new StringBundler();
372
373 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
374 new UnsyncStringReader(template));
375
376 String line = null;
377
378 while ((line = unsyncBufferedReader.readLine()) != null) {
379 if (!line.startsWith("##")) {
380 if (line.startsWith("@include ")) {
381 int pos = line.indexOf(" ");
382
383 String includeFileName = line.substring(pos + 1);
384
385 ClassLoader classLoader =
386 ClassLoaderUtil.getContextClassLoader();
387
388 InputStream is = classLoader.getResourceAsStream(
389 "com/liferay/portal/tools/sql/dependencies/" +
390 includeFileName);
391
392 if (is == null) {
393 is = classLoader.getResourceAsStream(includeFileName);
394 }
395
396 String include = StringUtil.read(is);
397
398 if (includeFileName.endsWith(".vm")) {
399 try {
400 include = evaluateVM(include);
401 }
402 catch (Exception e) {
403 _log.error(e, e);
404 }
405 }
406
407 include = convertTimestamp(include);
408 include = replaceTemplate(include, getTemplate());
409
410 runSQLTemplateString(include, false, true);
411 }
412 else {
413 sb.append(line);
414
415 if (line.endsWith(";")) {
416 String sql = sb.toString();
417
418 sb.setIndex(0);
419
420 try {
421 if (!sql.equals("COMMIT_TRANSACTION;")) {
422 runSQL(sql);
423 }
424 else {
425 if (_log.isDebugEnabled()) {
426 _log.debug("Skip commit sql");
427 }
428 }
429 }
430 catch (IOException ioe) {
431 if (failOnError) {
432 throw ioe;
433 }
434 else if (_log.isWarnEnabled()) {
435 _log.warn(ioe.getMessage());
436 }
437 }
438 catch (SecurityException se) {
439 if (failOnError) {
440 throw se;
441 }
442 else if (_log.isWarnEnabled()) {
443 _log.warn(se.getMessage());
444 }
445 }
446 catch (SQLException sqle) {
447 if (failOnError) {
448 throw sqle;
449 }
450 else if (_log.isWarnEnabled()) {
451 String message = GetterUtil.getString(
452 sqle.getMessage());
453
454 if (!message.startsWith("Duplicate key name")) {
455 _log.warn(message + ": " + buildSQL(sql));
456 }
457
458 if (message.startsWith("Duplicate entry") ||
459 message.startsWith(
460 "Specified key was too long")) {
461
462 _log.error(line);
463 }
464 }
465 }
466 }
467 }
468 }
469 }
470
471 unsyncBufferedReader.close();
472 }
473
474 @Override
475 public void setSupportsStringCaseSensitiveQuery(
476 boolean supportsStringCaseSensitiveQuery) {
477
478 if (_log.isInfoEnabled()) {
479 if (supportsStringCaseSensitiveQuery) {
480 _log.info("Database supports case sensitive queries");
481 }
482 else {
483 _log.info("Database does not support case sensitive queries");
484 }
485 }
486
487 _supportsStringCaseSensitiveQuery = supportsStringCaseSensitiveQuery;
488 }
489
490 @Override
491 public void updateIndexes(
492 Connection con, String tablesSQL, String indexesSQL,
493 String indexesProperties, boolean dropIndexes)
494 throws IOException, SQLException {
495
496 List<Index> indexes = getIndexes(con);
497
498 Set<String> validIndexNames = null;
499
500 if (dropIndexes) {
501 validIndexNames = dropIndexes(
502 con, tablesSQL, indexesSQL, indexesProperties, indexes);
503 }
504 else {
505 validIndexNames = new HashSet<String>();
506
507 for (Index index : indexes) {
508 String indexName = index.getIndexName().toUpperCase();
509
510 validIndexNames.add(indexName);
511 }
512 }
513
514 addIndexes(con, indexesSQL, validIndexNames);
515 }
516
517 protected BaseDB(String type) {
518 _type = type;
519
520 String[] actual = getTemplate();
521
522 for (int i = 0; i < TEMPLATE.length; i++) {
523 _templateMap.put(TEMPLATE[i], actual[i]);
524 }
525 }
526
527 protected String[] buildColumnNameTokens(String line) {
528 String[] words = StringUtil.split(line, ' ');
529
530 String nullable = "";
531
532 if (words.length == 7) {
533 nullable = "not null;";
534 }
535
536 String[] template = {
537 words[1], words[2], words[3], words[4], nullable
538 };
539
540 return template;
541 }
542
543 protected String[] buildColumnTypeTokens(String line) {
544 String[] words = StringUtil.split(line, ' ');
545
546 String nullable = "";
547
548 if (words.length == 6) {
549 nullable = "not null;";
550 }
551 else if (words.length == 5) {
552 nullable = words[4];
553 }
554 else if (words.length == 4) {
555 nullable = "not null;";
556
557 if (words[3].endsWith(";")) {
558 words[3] = words[3].substring(0, words[3].length() - 1);
559 }
560 }
561
562 String[] template = {
563 words[1], words[2], "", words[3], nullable
564 };
565
566 return template;
567 }
568
569 protected abstract String buildCreateFileContent(
570 String sqlDir, String databaseName, int population)
571 throws IOException;
572
573 protected String[] buildTableNameTokens(String line) {
574 String[] words = StringUtil.split(line, StringPool.SPACE);
575
576 return new String[] {words[1], words[2]};
577 }
578
579 protected String buildTemplate(String sqlDir, String fileName)
580 throws IOException {
581
582 String template = readFile(sqlDir + "/" + fileName + ".sql");
583
584 if (fileName.equals("portal") || fileName.equals("portal-minimal") ||
585 fileName.equals("update-5.0.1-5.1.0")) {
586
587 UnsyncBufferedReader unsyncBufferedReader =
588 new UnsyncBufferedReader(new UnsyncStringReader(template));
589
590 StringBundler sb = new StringBundler();
591
592 String line = null;
593
594 while ((line = unsyncBufferedReader.readLine()) != null) {
595 if (line.startsWith("@include ")) {
596 int pos = line.indexOf(" ");
597
598 String includeFileName = line.substring(pos + 1);
599
600 File includeFile = new File(sqlDir + "/" + includeFileName);
601
602 if (!includeFile.exists()) {
603 continue;
604 }
605
606 String include = FileUtil.read(includeFile);
607
608 if (includeFileName.endsWith(".vm")) {
609 try {
610 include = evaluateVM(include);
611 }
612 catch (Exception e) {
613 _log.error(e, e);
614 }
615 }
616
617 include = convertTimestamp(include);
618 include = replaceTemplate(include, getTemplate());
619
620 sb.append(include);
621 sb.append("\n\n");
622 }
623 else {
624 sb.append(line);
625 sb.append("\n");
626 }
627 }
628
629 unsyncBufferedReader.close();
630
631 template = sb.toString();
632 }
633
634 if (fileName.equals("indexes") && (this instanceof SybaseDB)) {
635 template = removeBooleanIndexes(sqlDir, template);
636 }
637
638 return template;
639 }
640
641 protected String convertTimestamp(String data) {
642 String s = null;
643
644 if (this instanceof MySQLDB) {
645 s = StringUtil.replace(data, "SPECIFIC_TIMESTAMP_", "");
646 }
647 else {
648 Matcher matcher = _timestampPattern.matcher(data);
649
650 s = matcher.replaceAll("CURRENT_TIMESTAMP");
651 }
652
653 return s;
654 }
655
656 protected Set<String> dropIndexes(
657 Connection con, String tablesSQL, String indexesSQL,
658 String indexesProperties, List<Index> indexes)
659 throws IOException, SQLException {
660
661 if (_log.isInfoEnabled()) {
662 _log.info("Dropping stale indexes");
663 }
664
665 Set<String> validIndexNames = new HashSet<String>();
666
667 if (indexes.isEmpty()) {
668 return validIndexNames;
669 }
670
671 String tablesSQLLowerCase = tablesSQL.toLowerCase();
672 String indexesSQLLowerCase = indexesSQL.toLowerCase();
673
674 Properties indexesPropertiesObj = PropertiesUtil.load(
675 indexesProperties);
676
677 Enumeration<String> enu =
678 (Enumeration<String>)indexesPropertiesObj.propertyNames();
679
680 while (enu.hasMoreElements()) {
681 String key = enu.nextElement();
682
683 String value = indexesPropertiesObj.getProperty(key);
684
685 indexesPropertiesObj.setProperty(key.toLowerCase(), value);
686 }
687
688 for (Index index : indexes) {
689 String indexNameUpperCase = index.getIndexName().toUpperCase();
690 String indexNameLowerCase = indexNameUpperCase.toLowerCase();
691 String tableName = index.getTableName();
692 String tableNameLowerCase = tableName.toLowerCase();
693 boolean unique = index.isUnique();
694
695 validIndexNames.add(indexNameUpperCase);
696
697 if (indexesPropertiesObj.containsKey(indexNameLowerCase)) {
698 if (unique &&
699 indexesSQLLowerCase.contains(
700 "create unique index " + indexNameLowerCase + " ")) {
701
702 continue;
703 }
704
705 if (!unique &&
706 indexesSQLLowerCase.contains(
707 "create index " + indexNameLowerCase + " ")) {
708
709 continue;
710 }
711 }
712 else if (!tablesSQLLowerCase.contains(
713 "create table " + tableNameLowerCase + " (")) {
714
715 continue;
716 }
717
718 validIndexNames.remove(indexNameUpperCase);
719
720 String sql =
721 "drop index " + indexNameUpperCase + " on " + tableName;
722
723 if (_log.isInfoEnabled()) {
724 _log.info(sql);
725 }
726
727 runSQL(con, sql);
728 }
729
730 return validIndexNames;
731 }
732
733 protected String evaluateVM(String template) throws Exception {
734 Map<String, Object> variables = new HashMap<String, Object>();
735
736 variables.put("counter", new SimpleCounter());
737 variables.put("portalUUIDUtil", PortalUUIDUtil.class);
738
739 ClassLoader classLoader = ClassLoaderUtil.getContextClassLoader();
740
741 try {
742 ClassLoaderUtil.setContextClassLoader(
743 ClassLoaderUtil.getPortalClassLoader());
744
745 template = VelocityUtil.evaluate(template, variables);
746 }
747 finally {
748 ClassLoaderUtil.setContextClassLoader(classLoader);
749 }
750
751
752
753 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
754 new UnsyncStringReader(template));
755
756 StringBundler sb = new StringBundler();
757
758 String line = null;
759
760 while ((line = unsyncBufferedReader.readLine()) != null) {
761 line = line.trim();
762
763 sb.append(line);
764 sb.append("\n");
765 }
766
767 unsyncBufferedReader.close();
768
769 template = sb.toString();
770 template = StringUtil.replace(template, "\n\n\n", "\n\n");
771
772 return template;
773 }
774
775 protected String getCreateTablesContent(String sqlDir, String suffix)
776 throws IOException {
777
778 StringBundler sb = new StringBundler(8);
779
780 sb.append(sqlDir);
781
782 if (!sqlDir.endsWith("/WEB-INF/sql")) {
783 sb.append("/portal");
784 sb.append(suffix);
785 sb.append("/portal");
786 }
787 else {
788 sb.append("/tables");
789 sb.append(suffix);
790 sb.append("/tables");
791 }
792
793 sb.append(suffix);
794 sb.append(StringPool.DASH);
795 sb.append(getServerName());
796 sb.append(".sql");
797
798 return readFile(sb.toString());
799 }
800
801 protected abstract String getServerName();
802
803 protected String getSuffix(int type) {
804 if (type == MINIMAL) {
805 return "-minimal";
806 }
807 else if (type == SHARDED) {
808 return "-sharded";
809 }
810 else {
811 return StringPool.BLANK;
812 }
813 }
814
815 protected abstract String[] getTemplate();
816
817 protected void handleSQLException(String sql, SQLException sqle)
818 throws SQLException {
819
820 if (_log.isDebugEnabled()) {
821 StringBundler sb = new StringBundler(18);
822
823 sb.append("SQL: ");
824 sb.append(sql);
825 sb.append("\nSQL state: ");
826 sb.append(sqle.getSQLState());
827 sb.append("\nVendor: ");
828 sb.append(getType());
829 sb.append("\nVendor error code: ");
830 sb.append(sqle.getErrorCode());
831 sb.append("\nVendor error message: ");
832 sb.append(sqle.getMessage());
833
834 _log.debug(sb.toString());
835 }
836
837 throw sqle;
838 }
839
840 protected String readFile(String fileName) throws IOException {
841 if (FileUtil.exists(fileName)) {
842 return FileUtil.read(fileName);
843 }
844 else {
845 return StringPool.BLANK;
846 }
847 }
848
849 protected String readSQL(String fileName, String comments, String eol)
850 throws IOException {
851
852 if (!FileUtil.exists(fileName)) {
853 return StringPool.BLANK;
854 }
855
856 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
857 new FileReader(new File(fileName)));
858
859 StringBundler sb = new StringBundler();
860
861 String line = null;
862
863 while ((line = unsyncBufferedReader.readLine()) != null) {
864 if (!line.startsWith(comments)) {
865 line = StringUtil.replace(
866 line, new String[] {"\n", "\t"}, new String[] {"", ""});
867
868 if (line.endsWith(";")) {
869 sb.append(line.substring(0, line.length() - 1));
870 sb.append(eol);
871 }
872 else {
873 sb.append(line);
874 }
875 }
876 }
877
878 unsyncBufferedReader.close();
879
880 return sb.toString();
881 }
882
883 protected String removeBooleanIndexes(String sqlDir, String data)
884 throws IOException {
885
886 String portalData = readFile(sqlDir + "/portal-tables.sql");
887
888 if (Validator.isNull(portalData)) {
889 return StringPool.BLANK;
890 }
891
892 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
893 new UnsyncStringReader(data));
894
895 StringBundler sb = new StringBundler();
896
897 String line = null;
898
899 while ((line = unsyncBufferedReader.readLine()) != null) {
900 boolean append = true;
901
902 int x = line.indexOf(" on ");
903
904 if (x != -1) {
905 int y = line.indexOf(" (", x);
906
907 String table = line.substring(x + 4, y);
908
909 x = y + 2;
910 y = line.indexOf(")", x);
911
912 String[] columns = StringUtil.split(line.substring(x, y));
913
914 x = portalData.indexOf("create table " + table + " (");
915 y = portalData.indexOf(");", x);
916
917 String portalTableData = portalData.substring(x, y);
918
919 for (int i = 0; i < columns.length; i++) {
920 if (portalTableData.contains(
921 columns[i].trim() + " BOOLEAN")) {
922
923 append = false;
924
925 break;
926 }
927 }
928 }
929
930 if (append) {
931 sb.append(line);
932 sb.append("\n");
933 }
934 }
935
936 unsyncBufferedReader.close();
937
938 return sb.toString();
939 }
940
941 protected String removeInserts(String data) throws IOException {
942 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
943 new UnsyncStringReader(data));
944
945 StringBundler sb = new StringBundler();
946
947 String line = null;
948
949 while ((line = unsyncBufferedReader.readLine()) != null) {
950 if (!line.startsWith("insert into ") &&
951 !line.startsWith("update ")) {
952
953 sb.append(line);
954 sb.append("\n");
955 }
956 }
957
958 unsyncBufferedReader.close();
959
960 return sb.toString();
961 }
962
963 protected String removeLongInserts(String data) throws IOException {
964 UnsyncBufferedReader unsyncBufferedReader = new UnsyncBufferedReader(
965 new UnsyncStringReader(data));
966
967 StringBundler sb = new StringBundler();
968
969 String line = null;
970
971 while ((line = unsyncBufferedReader.readLine()) != null) {
972 if (!line.startsWith("insert into Image (") &&
973 !line.startsWith("insert into JournalArticle (") &&
974 !line.startsWith("insert into JournalStructure (") &&
975 !line.startsWith("insert into JournalTemplate (")) {
976
977 sb.append(line);
978 sb.append("\n");
979 }
980 }
981
982 unsyncBufferedReader.close();
983
984 return sb.toString();
985 }
986
987 protected String removeNull(String content) {
988 content = StringUtil.replace(content, " = null", " = NULL");
989 content = StringUtil.replace(content, " is null", " IS NULL");
990 content = StringUtil.replace(content, " not null", " not_null");
991 content = StringUtil.replace(content, " null", "");
992 content = StringUtil.replace(content, " not_null", " not null");
993
994 return content;
995 }
996
997 protected String replaceTemplate(String template, String[] actual) {
998 if ((template == null) || (TEMPLATE == null) || (actual == null)) {
999 return null;
1000 }
1001
1002 if (TEMPLATE.length != actual.length) {
1003 return template;
1004 }
1005
1006 StringBundler sb = null;
1007
1008 int endIndex = 0;
1009
1010 Matcher matcher = _templatePattern.matcher(template);
1011
1012 while (matcher.find()) {
1013 int startIndex = matcher.start();
1014
1015 if (sb == null) {
1016 sb = new StringBundler();
1017 }
1018
1019 sb.append(template.substring(endIndex, startIndex));
1020
1021 endIndex = matcher.end();
1022
1023 String matched = template.substring(startIndex, endIndex);
1024
1025 sb.append(_templateMap.get(matched));
1026 }
1027
1028 if (sb == null) {
1029 return template;
1030 }
1031
1032 if (template.length() > endIndex) {
1033 sb.append(template.substring(endIndex));
1034 }
1035
1036 return sb.toString();
1037 }
1038
1039 protected abstract String reword(String data) throws IOException;
1040
1041 protected static final String ALTER_COLUMN_NAME = "alter_column_name ";
1042
1043 protected static final String ALTER_COLUMN_TYPE = "alter_column_type ";
1044
1045 protected static final String ALTER_TABLE_NAME = "alter_table_name ";
1046
1047 protected static final String DROP_INDEX = "drop index";
1048
1049 protected static final String DROP_PRIMARY_KEY = "drop primary key";
1050
1051 protected static final String[] RENAME_TABLE_TEMPLATE = {
1052 "@old-table@", "@new-table@"
1053 };
1054
1055 protected static final String[] REWORD_TEMPLATE = {
1056 "@table@", "@old-column@", "@new-column@", "@type@", "@nullable@"
1057 };
1058
1059 protected static final String[] TEMPLATE = {
1060 "##", "TRUE", "FALSE", "'01/01/1970'", "CURRENT_TIMESTAMP", " BLOB",
1061 " SBLOB", " BOOLEAN", " DATE", " DOUBLE", " INTEGER", " LONG",
1062 " STRING", " TEXT", " VARCHAR", " IDENTITY", "COMMIT_TRANSACTION"
1063 };
1064
1065 private static final boolean _SUPPORTS_ALTER_COLUMN_NAME = true;
1066
1067 private static final boolean _SUPPORTS_ALTER_COLUMN_TYPE = true;
1068
1069 private static final boolean _SUPPORTS_DATE_MILLISECONDS = true;
1070
1071 private static final boolean _SUPPORTS_INLINE_DISTINCT = true;
1072
1073 private static final boolean _SUPPORTS_QUERYING_AFTER_EXCEPTION = true;
1074
1075 private static final boolean _SUPPORTS_SCROLLABLE_RESULTS = true;
1076
1077 private static final boolean _SUPPORTS_UPDATE_WITH_INNER_JOIN = true;
1078
1079 private static Log _log = LogFactoryUtil.getLog(BaseDB.class);
1080
1081 private static Pattern _templatePattern;
1082 private static Pattern _timestampPattern = Pattern.compile(
1083 "SPECIFIC_TIMESTAMP_\\d+");
1084
1085 private boolean _supportsStringCaseSensitiveQuery;
1086 private Map<String, String> _templateMap = new HashMap<String, String>();
1087 private String _type;
1088
1089 static {
1090 StringBundler sb = new StringBundler(TEMPLATE.length * 3 - 3);
1091
1092 for (int i = 0; i < TEMPLATE.length; i++) {
1093 String variable = TEMPLATE[i];
1094
1095 if (variable.equals("##") || variable.equals("'01/01/1970'")) {
1096 sb.append(variable);
1097 }
1098 else {
1099 sb.append(variable);
1100 sb.append("\\b");
1101 }
1102
1103 if (i < (TEMPLATE.length - 1)) {
1104 sb.append(StringPool.PIPE);
1105 }
1106 }
1107
1108 _templatePattern = Pattern.compile(sb.toString());
1109 }
1110
1111 }