1 package de.juplo.plugins.hibernate4;
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19 import com.pyx4j.log4j.MavenLogAppender;
20 import java.io.File;
21 import java.io.FileInputStream;
22 import java.io.FileNotFoundException;
23 import java.io.FileOutputStream;
24 import java.io.IOException;
25 import java.io.InputStream;
26 import java.io.ObjectInputStream;
27 import java.io.ObjectOutputStream;
28 import java.math.BigInteger;
29 import java.net.URL;
30 import java.net.URLClassLoader;
31 import java.security.MessageDigest;
32 import java.security.NoSuchAlgorithmException;
33 import java.sql.Connection;
34 import java.sql.Driver;
35 import java.sql.DriverManager;
36 import java.sql.DriverPropertyInfo;
37 import java.sql.SQLException;
38 import java.sql.SQLFeatureNotSupportedException;
39 import java.util.Comparator;
40 import java.util.Enumeration;
41 import java.util.HashMap;
42 import java.util.HashSet;
43 import java.util.List;
44 import java.util.Map;
45 import java.util.Map.Entry;
46 import java.util.Properties;
47 import java.util.Set;
48 import java.util.TreeSet;
49 import java.util.logging.Logger;
50 import java.util.regex.Matcher;
51 import java.util.regex.Pattern;
52 import javax.persistence.Embeddable;
53 import javax.persistence.Entity;
54 import javax.persistence.MappedSuperclass;
55 import org.apache.maven.artifact.Artifact;
56 import org.apache.maven.model.Resource;
57 import org.apache.maven.plugin.AbstractMojo;
58 import org.apache.maven.plugin.MojoExecutionException;
59 import org.apache.maven.plugin.MojoFailureException;
60 import org.apache.maven.project.MavenProject;
61 import org.hibernate.cfg.Configuration;
62 import org.hibernate.cfg.NamingStrategy;
63 import org.hibernate.envers.configuration.AuditConfiguration;
64 import org.hibernate.tool.hbm2ddl.SchemaExport;
65 import org.hibernate.tool.hbm2ddl.SchemaExport.Type;
66 import org.hibernate.tool.hbm2ddl.Target;
67 import org.scannotation.AnnotationDB;
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77
78
79 public class Hbm2DdlMojo extends AbstractMojo
80 {
81 public final static String EXPORT_SKIPPED_PROPERTY = "hibernate.export.skipped";
82
83 public final static String DRIVER_CLASS = "hibernate.connection.driver_class";
84 public final static String URL = "hibernate.connection.url";
85 public final static String USERNAME = "hibernate.connection.username";
86 public final static String PASSWORD = "hibernate.connection.password";
87 public final static String DIALECT = "hibernate.dialect";
88 public final static String NAMING_STRATEGY="hibernate.ejb.naming_strategy";
89 public final static String ENVERS = "hibernate.export.envers";
90
91 public final static String MD5S = "schema.md5s";
92
93 private final static Pattern split = Pattern.compile("[^,\\s]+");
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105 private MavenProject project;
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116 private String buildDirectory;
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127 private String outputDirectory;
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138 private boolean scanTestClasses;
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154 private String scanDependencies;
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168 private String testOutputDirectory;
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184 private boolean skip;
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197 private boolean force;
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205 private String driverClassName;
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213 private String url;
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221 private String username;
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229 private String password;
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237 private String hibernateDialect;
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245 private String hibernateNamingStrategy;
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253 private String hibernateProperties;
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262 private String hibernateMapping;
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279 private String target;
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295 private String type;
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303 private String outputFile;
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311 private String delimiter;
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319 private boolean format;
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327 private boolean envers;
328
329
330 @Override
331 public void execute()
332 throws
333 MojoFailureException,
334 MojoExecutionException
335 {
336 if (skip)
337 {
338 getLog().info("Exectuion of hibernate4-maven-plugin:export was skipped!");
339 project.getProperties().setProperty(EXPORT_SKIPPED_PROPERTY, "true");
340 return;
341 }
342
343 Map<String,String> md5s;
344 boolean modified = false;
345 File saved = new File(buildDirectory + File.separator + MD5S);
346
347 if (saved.exists())
348 {
349 try
350 {
351 FileInputStream fis = new FileInputStream(saved);
352 ObjectInputStream ois = new ObjectInputStream(fis);
353 md5s = (HashMap<String,String>)ois.readObject();
354 ois.close();
355 }
356 catch (Exception e)
357 {
358 md5s = new HashMap<String,String>();
359 getLog().warn("Cannot read timestamps from saved: " + e);
360 }
361 }
362 else
363 {
364 md5s = new HashMap<String,String>();
365 try
366 {
367 saved.createNewFile();
368 }
369 catch (IOException e)
370 {
371 getLog().debug("Cannot create file \"" + saved.getPath() + "\" for timestamps: " + e);
372 }
373 }
374
375 ClassLoader classLoader = null;
376 try
377 {
378 getLog().debug("Creating ClassLoader for project-dependencies...");
379 List<String> classpathFiles = project.getCompileClasspathElements();
380 if (scanTestClasses)
381 classpathFiles.addAll(project.getTestClasspathElements());
382 URL[] urls = new URL[classpathFiles.size()];
383 for (int i = 0; i < classpathFiles.size(); ++i)
384 {
385 getLog().debug("Dependency: " + classpathFiles.get(i));
386 urls[i] = new File(classpathFiles.get(i)).toURI().toURL();
387 }
388 classLoader = new URLClassLoader(urls, getClass().getClassLoader());
389 }
390 catch (Exception e)
391 {
392 getLog().error("Error while creating ClassLoader!", e);
393 throw new MojoExecutionException(e.getMessage());
394 }
395
396 Set<Class<?>> classes =
397 new TreeSet<Class<?>>(
398 new Comparator<Class<?>>() {
399 @Override
400 public int compare(Class<?> a, Class<?> b)
401 {
402 return a.getName().compareTo(b.getName());
403 }
404 }
405 );
406
407 try
408 {
409 AnnotationDB db = new AnnotationDB();
410 File dir = new File(outputDirectory);
411 if (dir.exists())
412 {
413 getLog().info("Scanning directory " + outputDirectory + " for annotated classes...");
414 URL dirUrl = dir.toURI().toURL();
415 db.scanArchives(dirUrl);
416 }
417 if (scanTestClasses)
418 {
419 dir = new File(testOutputDirectory);
420 if (dir.exists())
421 {
422 getLog().info("Scanning directory " + testOutputDirectory + " for annotated classes...");
423 URL dirUrl = dir.toURI().toURL();
424 db.scanArchives(dirUrl);
425 }
426 }
427 if (scanDependencies != null)
428 {
429 Matcher matcher = split.matcher(scanDependencies);
430 while (matcher.find())
431 {
432 getLog().info("Scanning dependencies for scope " + matcher.group());
433 for (Artifact artifact : project.getDependencyArtifacts())
434 {
435 if (!artifact.getScope().equalsIgnoreCase(matcher.group()))
436 continue;
437 if (artifact.getFile() == null)
438 {
439 getLog().warn(
440 "Cannot scan dependency " +
441 artifact.getId() +
442 ": no JAR-file available!"
443 );
444 continue;
445 }
446 getLog().info(
447 "Scanning dependency " +
448 artifact.getId() +
449 " for annotated classes..."
450 );
451 db.scanArchives(artifact.getFile().toURI().toURL());
452 }
453 }
454 }
455
456 Set<String> classNames = new HashSet<String>();
457 if (db.getAnnotationIndex().containsKey(Entity.class.getName()))
458 classNames.addAll(db.getAnnotationIndex().get(Entity.class.getName()));
459 if (db.getAnnotationIndex().containsKey(MappedSuperclass.class.getName()))
460 classNames.addAll(db.getAnnotationIndex().get(MappedSuperclass.class.getName()));
461 if (db.getAnnotationIndex().containsKey(Embeddable.class.getName()))
462 classNames.addAll(db.getAnnotationIndex().get(Embeddable.class.getName()));
463
464 MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
465 for (String name : classNames)
466 {
467 Class<?> annotatedClass = classLoader.loadClass(name);
468 classes.add(annotatedClass);
469 String resourceName = annotatedClass.getName();
470 resourceName = resourceName.substring(resourceName.lastIndexOf(".") + 1, resourceName.length()) + ".class";
471 InputStream is =
472 annotatedClass
473 .getResourceAsStream(resourceName);
474 byte[] buffer = new byte[1024*4];
475 int i;
476 while((i = is.read(buffer)) > -1)
477 digest.update(buffer, 0, i);
478 is.close();
479 byte[] bytes = digest.digest();
480 BigInteger bi = new BigInteger(1, bytes);
481 String newMd5 = String.format("%0" + (bytes.length << 1) + "x", bi);
482 String oldMd5 = !md5s.containsKey(name) ? "" : md5s.get(name);
483 if (!newMd5.equals(oldMd5))
484 {
485 getLog().debug("Found new or modified annotated class: " + name);
486 modified = true;
487 md5s.put(name, newMd5);
488 }
489 else
490 {
491 getLog().debug(oldMd5 + " -> class unchanged: " + name);
492 }
493 }
494 }
495 catch (ClassNotFoundException e)
496 {
497 getLog().error("Error while adding annotated classes!", e);
498 throw new MojoExecutionException(e.getMessage());
499 }
500 catch (Exception e)
501 {
502 getLog().error("Error while scanning!", e);
503 throw new MojoFailureException(e.getMessage());
504 }
505
506 if (classes.isEmpty())
507 {
508 if (hibernateMapping == null || hibernateMapping.isEmpty())
509 throw new MojoFailureException("No annotated classes found in directory " + outputDirectory);
510 }
511 else
512 {
513 getLog().debug("Detected classes with mapping-annotations:");
514 for (Class<?> annotatedClass : classes)
515 getLog().debug(" " + annotatedClass.getName());
516 }
517
518
519 Properties properties = new Properties();
520
521
522 try
523 {
524 File file = new File(hibernateProperties);
525 if (file.exists())
526 {
527 getLog().info("Reading properties from file " + hibernateProperties + "...");
528 properties.load(new FileInputStream(file));
529 }
530 else
531 getLog().info("No hibernate-properties-file found! (Checked path: " + hibernateProperties + ")");
532 }
533 catch (IOException e)
534 {
535 getLog().error("Error while reading properties!", e);
536 throw new MojoExecutionException(e.getMessage());
537 }
538
539
540 if (driverClassName != null)
541 {
542 if (properties.containsKey(DRIVER_CLASS))
543 getLog().debug(
544 "Overwriting property " +
545 DRIVER_CLASS + "=" + properties.getProperty(DRIVER_CLASS) +
546 " with the value " + driverClassName
547 );
548 else
549 getLog().debug("Using the value " + driverClassName);
550 properties.setProperty(DRIVER_CLASS, driverClassName);
551 }
552 if (url != null)
553 {
554 if (properties.containsKey(URL))
555 getLog().debug(
556 "Overwriting property " +
557 URL + "=" + properties.getProperty(URL) +
558 " with the value " + url
559 );
560 else
561 getLog().debug("Using the value " + url);
562 properties.setProperty(URL, url);
563 }
564 if (username != null)
565 {
566 if (properties.containsKey(USERNAME))
567 getLog().debug(
568 "Overwriting property " +
569 USERNAME + "=" + properties.getProperty(USERNAME) +
570 " with the value " + username
571 );
572 else
573 getLog().debug("Using the value " + username);
574 properties.setProperty(USERNAME, username);
575 }
576 if (password != null)
577 {
578 if (properties.containsKey(PASSWORD))
579 getLog().debug(
580 "Overwriting property " +
581 PASSWORD + "=" + properties.getProperty(PASSWORD) +
582 " with value " + password
583 );
584 else
585 getLog().debug("Using value " + password + " for property " + PASSWORD);
586 properties.setProperty(PASSWORD, password);
587 }
588 if (hibernateDialect != null)
589 {
590 if (properties.containsKey(DIALECT))
591 getLog().debug(
592 "Overwriting property " +
593 DIALECT + "=" + properties.getProperty(DIALECT) +
594 " with value " + hibernateDialect
595 );
596 else
597 getLog().debug(
598 "Using value " + hibernateDialect + " for property " + DIALECT
599 );
600 properties.setProperty(DIALECT, hibernateDialect);
601 }
602 if ( hibernateNamingStrategy != null )
603 {
604 if ( properties.contains(NAMING_STRATEGY))
605 getLog().debug(
606 "Overwriting property " +
607 NAMING_STRATEGY + "=" + properties.getProperty(NAMING_STRATEGY) +
608 " with value " + hibernateNamingStrategy
609 );
610 else
611 getLog().debug(
612 "Using value " + hibernateNamingStrategy + " for property " +
613 NAMING_STRATEGY
614 );
615 properties.setProperty(NAMING_STRATEGY, hibernateNamingStrategy);
616 }
617
618
619 if (md5s.containsKey(DIALECT))
620 {
621 String dialect = properties.getProperty(DIALECT);
622 if (md5s.get(DIALECT).equals(dialect))
623 getLog().debug("SQL-dialect unchanged.");
624 else
625 {
626 modified = true;
627 if (dialect == null)
628 {
629 getLog().debug("SQL-dialect was unset.");
630 md5s.remove(DIALECT);
631 }
632 else
633 {
634 getLog().debug("SQL-dialect changed: " + dialect);
635 md5s.put(DIALECT, dialect);
636 }
637 }
638 }
639 else
640 {
641 String dialect = properties.getProperty(DIALECT);
642 if (dialect != null)
643 {
644 modified = true;
645 md5s.put(DIALECT, properties.getProperty(DIALECT));
646 }
647 }
648
649
650 if (md5s.get(ENVERS) != null)
651 {
652 if (md5s.get(ENVERS).equals(Boolean.toString(envers)))
653 getLog().debug("Envers-Configuration unchanged. Enabled: " + envers);
654 else
655 {
656 getLog().debug("Envers-Configuration changed. Enabled: " + envers);
657 modified = true;
658 md5s.put(ENVERS, Boolean.toString(envers));
659 }
660 }
661 else
662 {
663 modified = true;
664 md5s.put(ENVERS, Boolean.toString(envers));
665 }
666
667 if (properties.isEmpty())
668 {
669 getLog().error("No properties set!");
670 throw new MojoFailureException("Hibernate-Configuration is missing!");
671 }
672
673 Configuration config = new Configuration();
674 config.setProperties(properties);
675
676 if ( properties.containsKey(NAMING_STRATEGY))
677 {
678 String namingStrategy = properties.getProperty(NAMING_STRATEGY);
679 getLog().debug("Explicitly set NamingStrategy: " + namingStrategy);
680 try
681 {
682 @SuppressWarnings("unchecked")
683 Class<NamingStrategy> namingStrategyClass = (Class<NamingStrategy>) Class.forName(namingStrategy);
684 config.setNamingStrategy(namingStrategyClass.newInstance());
685 }
686 catch (Exception e)
687 {
688 getLog().error("Error setting NamingStrategy", e);
689 throw new MojoExecutionException(e.getMessage());
690 }
691 }
692
693 getLog().debug("Adding annotated classes to hibernate-mapping-configuration...");
694 for (Class<?> annotatedClass : classes)
695 {
696 getLog().debug("Class " + annotatedClass);
697 config.addAnnotatedClass(annotatedClass);
698 }
699
700 if (hibernateMapping != null)
701 {
702 try
703 {
704 MessageDigest digest = java.security.MessageDigest.getInstance("MD5");
705 for (String filename : hibernateMapping.split("[\\s,]+"))
706 {
707
708 File file = new File(filename);
709 if (!file.exists())
710 {
711
712 for (Resource resource : project.getResources())
713 {
714 file = new File(resource.getDirectory() + File.separator + filename);
715 if (file.exists())
716 break;
717 }
718 }
719 if (file != null && file.exists())
720 {
721 InputStream is = new FileInputStream(file);
722 byte[] buffer = new byte[1024*4];
723 int i;
724 while((i = is.read(buffer)) > -1)
725 digest.update(buffer, 0, i);
726 is.close();
727 byte[] bytes = digest.digest();
728 BigInteger bi = new BigInteger(1, bytes);
729 String newMd5 = String.format("%0" + (bytes.length << 1) + "x", bi);
730 String oldMd5 = !md5s.containsKey(filename) ? "" : md5s.get(filename);
731 if (!newMd5.equals(oldMd5))
732 {
733 getLog().debug("Found new or modified mapping-file: " + filename);
734 modified = true;
735 md5s.put(filename, newMd5);
736 }
737 else
738 {
739 getLog().debug(oldMd5 + " -> mapping-file unchanged: " + filename);
740 }
741 getLog().debug("Adding mappings from XML-configurationfile: " + file);
742 config.addFile(file);
743 }
744 else
745 throw new MojoFailureException("File " + filename + " could not be found in any of the configured resource-directories!");
746 }
747 }
748 catch (NoSuchAlgorithmException e)
749 {
750 throw new MojoFailureException("Cannot calculate MD5-summs!", e);
751 }
752 catch (FileNotFoundException e)
753 {
754 throw new MojoFailureException("Cannot calculate MD5-summs!", e);
755 }
756 catch (IOException e)
757 {
758 throw new MojoFailureException("Cannot calculate MD5-summs!", e);
759 }
760 }
761
762 Target target = null;
763 try
764 {
765 target = Target.valueOf(this.target.toUpperCase());
766 }
767 catch (IllegalArgumentException e)
768 {
769 getLog().error("Invalid value for configuration-option \"target\": " + this.target);
770 getLog().error("Valid values are: NONE, SCRIPT, EXPORT, BOTH");
771 throw new MojoExecutionException("Invalid value for configuration-option \"target\"");
772 }
773 Type type = null;
774 try
775 {
776 type = Type.valueOf(this.type.toUpperCase());
777 }
778 catch (IllegalArgumentException e)
779 {
780 getLog().error("Invalid value for configuration-option \"type\": " + this.type);
781 getLog().error("Valid values are: NONE, CREATE, DROP, BOTH");
782 throw new MojoExecutionException("Invalid value for configuration-option \"type\"");
783 }
784
785 if (target.equals(Target.SCRIPT) || target.equals(Target.NONE))
786 {
787 project.getProperties().setProperty(EXPORT_SKIPPED_PROPERTY, "true");
788 }
789 if (
790 !modified
791 && !target.equals(Target.SCRIPT)
792 && !target.equals(Target.NONE)
793 && !force
794 )
795 {
796 getLog().info("No modified annotated classes or mapping-files found and dialect unchanged.");
797 getLog().info("Skipping schema generation!");
798 project.getProperties().setProperty(EXPORT_SKIPPED_PROPERTY, "true");
799 return;
800 }
801
802 getLog().info("Gathered hibernate-configuration (turn on debugging for details):");
803 for (Entry<Object,Object> entry : properties.entrySet())
804 getLog().info(" " + entry.getKey() + " = " + entry.getValue());
805
806 Connection connection = null;
807 try
808 {
809
810
811
812
813
814 getLog().debug("Target: " + target + ", Type: " + type);
815 switch (target)
816 {
817 case EXPORT:
818 case BOTH:
819 switch (type)
820 {
821 case CREATE:
822 case DROP:
823 case BOTH:
824 Class driverClass = classLoader.loadClass(properties.getProperty(DRIVER_CLASS));
825 getLog().debug("Registering JDBC-driver " + driverClass.getName());
826 DriverManager.registerDriver(new DriverProxy((Driver)driverClass.newInstance()));
827 getLog().debug(
828 "Opening JDBC-connection to "
829 + properties.getProperty(URL)
830 + " as "
831 + properties.getProperty(USERNAME)
832 + " with password "
833 + properties.getProperty(PASSWORD)
834 );
835 connection = DriverManager.getConnection(
836 properties.getProperty(URL),
837 properties.getProperty(USERNAME),
838 properties.getProperty(PASSWORD)
839 );
840 }
841 }
842 }
843 catch (ClassNotFoundException e)
844 {
845 getLog().error("Dependency for driver-class " + properties.getProperty(DRIVER_CLASS) + " is missing!");
846 throw new MojoExecutionException(e.getMessage());
847 }
848 catch (Exception e)
849 {
850 getLog().error("Cannot establish connection to database!");
851 Enumeration<Driver> drivers = DriverManager.getDrivers();
852 if (!drivers.hasMoreElements())
853 getLog().error("No drivers registered!");
854 while (drivers.hasMoreElements())
855 getLog().debug("Driver: " + drivers.nextElement());
856 throw new MojoExecutionException(e.getMessage());
857 }
858
859 ClassLoader contextClassLoader = Thread.currentThread().getContextClassLoader();
860 MavenLogAppender.startPluginLog(this);
861 try
862 {
863
864
865
866
867 Thread.currentThread().setContextClassLoader(classLoader);
868
869 config.buildMappings();
870
871 if (envers)
872 {
873 getLog().info("Automatic auditing via hibernate-envers enabled!");
874 AuditConfiguration.getFor(config);
875 }
876
877 SchemaExport export = new SchemaExport(config, connection);
878 export.setOutputFile(outputFile);
879 export.setDelimiter(delimiter);
880 export.setFormat(format);
881 export.execute(target, type);
882
883 for (Object exception : export.getExceptions())
884 getLog().debug(exception.toString());
885 }
886 finally
887 {
888
889 MavenLogAppender.endPluginLog(this);
890
891
892 Thread.currentThread().setContextClassLoader(contextClassLoader);
893
894
895 try
896 {
897 if (connection != null)
898 connection.close();
899 }
900 catch (SQLException e)
901 {
902 getLog().error("Error while closing connection: " + e.getMessage());
903 }
904 }
905
906
907 try
908 {
909 FileOutputStream fos = new FileOutputStream(saved);
910 ObjectOutputStream oos = new ObjectOutputStream(fos);
911 oos.writeObject(md5s);
912 oos.close();
913 fos.close();
914 }
915 catch (Exception e)
916 {
917 getLog().error("Cannot write md5-sums to file: " + e);
918 }
919 }
920
921
922
923
924
925
926
927 static final class DriverProxy implements Driver
928 {
929 private final Driver target;
930
931 DriverProxy(Driver target)
932 {
933 if (target == null)
934 throw new NullPointerException();
935 this.target = target;
936 }
937
938 public java.sql.Driver getTarget()
939 {
940 return target;
941 }
942
943 @Override
944 public boolean acceptsURL(String url) throws SQLException
945 {
946 return target.acceptsURL(url);
947 }
948
949 @Override
950 public java.sql.Connection connect(
951 String url,
952 java.util.Properties info
953 )
954 throws
955 SQLException
956 {
957 return target.connect(url, info);
958 }
959
960 @Override
961 public int getMajorVersion()
962 {
963 return target.getMajorVersion();
964 }
965
966 @Override
967 public int getMinorVersion()
968 {
969 return target.getMinorVersion();
970 }
971
972 @Override
973 public DriverPropertyInfo[] getPropertyInfo(
974 String url,
975 Properties info
976 )
977 throws
978 SQLException
979 {
980 return target.getPropertyInfo(url, info);
981 }
982
983 @Override
984 public boolean jdbcCompliant()
985 {
986 return target.jdbcCompliant();
987 }
988
989
990
991
992
993 public Logger getParentLogger() throws SQLFeatureNotSupportedException
994 {
995 throw new SQLFeatureNotSupportedException("Not supported, for backward-compatibility with Java 1.6");
996 }
997
998 @Override
999 public String toString()
1000 {
1001 return "Proxy: " + target;
1002 }
1003
1004 @Override
1005 public int hashCode()
1006 {
1007 return target.hashCode();
1008 }
1009
1010 @Override
1011 public boolean equals(Object obj)
1012 {
1013 if (!(obj instanceof DriverProxy))
1014 return false;
1015 DriverProxy other = (DriverProxy) obj;
1016 return this.target.equals(other.target);
1017 }
1018 }
1019 }