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org.hibernate.tool.hbm2ddl.SchemaExport Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008-2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.tool.hbm2ddl;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.Writer;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.SQLWarning;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
import org.hibernate.HibernateException;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.boot.registry.internal.StandardServiceRegistryImpl;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.cfg.NamingStrategy;
import org.hibernate.dialect.Dialect;
import org.hibernate.engine.config.spi.ConfigurationService;
import org.hibernate.engine.jdbc.connections.spi.ConnectionProvider;
import org.hibernate.engine.jdbc.internal.FormatStyle;
import org.hibernate.engine.jdbc.internal.Formatter;
import org.hibernate.engine.jdbc.spi.JdbcServices;
import org.hibernate.engine.jdbc.spi.SqlExceptionHelper;
import org.hibernate.engine.jdbc.spi.SqlStatementLogger;
import org.hibernate.internal.CoreMessageLogger;
import org.hibernate.internal.util.ConfigHelper;
import org.hibernate.internal.util.ReflectHelper;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.internal.util.config.ConfigurationHelper;
import org.hibernate.metamodel.source.MetadataImplementor;
import org.hibernate.service.ServiceRegistry;
import org.jboss.logging.Logger;
/**
* Commandline tool to export table schema to the database. This class may also be called from inside an application.
*
* @author Daniel Bradby
* @author Gavin King
* @author Steve Ebersole
*/
public class SchemaExport {
private static final CoreMessageLogger LOG = Logger.getMessageLogger(CoreMessageLogger.class, SchemaExport.class.getName());
private static final String DEFAULT_IMPORT_FILE = "/import.sql";
public static enum Type {
CREATE,
DROP,
NONE,
BOTH;
public boolean doCreate() {
return this == BOTH || this == CREATE;
}
public boolean doDrop() {
return this == BOTH || this == DROP;
}
}
private final ConnectionHelper connectionHelper;
private final SqlStatementLogger sqlStatementLogger;
private final SqlExceptionHelper sqlExceptionHelper;
private final String[] dropSQL;
private final String[] createSQL;
private final String importFiles;
private final List exceptions = new ArrayList();
private Formatter formatter;
private ImportSqlCommandExtractor importSqlCommandExtractor = ImportSqlCommandExtractorInitiator.DEFAULT_EXTRACTOR;
private String outputFile;
private String delimiter;
private boolean haltOnError;
public SchemaExport(ServiceRegistry serviceRegistry, Configuration configuration) {
this.connectionHelper = new SuppliedConnectionProviderConnectionHelper(
serviceRegistry.getService( ConnectionProvider.class )
);
this.sqlStatementLogger = serviceRegistry.getService( JdbcServices.class ).getSqlStatementLogger();
this.formatter = ( sqlStatementLogger.isFormat() ? FormatStyle.DDL : FormatStyle.NONE ).getFormatter();
this.sqlExceptionHelper = serviceRegistry.getService( JdbcServices.class ).getSqlExceptionHelper();
this.importFiles = ConfigurationHelper.getString(
AvailableSettings.HBM2DDL_IMPORT_FILES,
configuration.getProperties(),
DEFAULT_IMPORT_FILE
);
final Dialect dialect = serviceRegistry.getService( JdbcServices.class ).getDialect();
this.dropSQL = configuration.generateDropSchemaScript( dialect );
this.createSQL = configuration.generateSchemaCreationScript( dialect );
}
public SchemaExport(MetadataImplementor metadata) {
ServiceRegistry serviceRegistry = metadata.getServiceRegistry();
this.connectionHelper = new SuppliedConnectionProviderConnectionHelper(
serviceRegistry.getService( ConnectionProvider.class )
);
JdbcServices jdbcServices = serviceRegistry.getService( JdbcServices.class );
this.sqlStatementLogger = jdbcServices.getSqlStatementLogger();
this.formatter = ( sqlStatementLogger.isFormat() ? FormatStyle.DDL : FormatStyle.NONE ).getFormatter();
this.sqlExceptionHelper = jdbcServices.getSqlExceptionHelper();
this.importFiles = ConfigurationHelper.getString(
AvailableSettings.HBM2DDL_IMPORT_FILES,
serviceRegistry.getService( ConfigurationService.class ).getSettings(),
DEFAULT_IMPORT_FILE
);
final Dialect dialect = jdbcServices.getDialect();
this.dropSQL = metadata.getDatabase().generateDropSchemaScript( dialect );
this.createSQL = metadata.getDatabase().generateSchemaCreationScript( dialect );
}
/**
* Create a schema exporter for the given Configuration
*
* @param configuration The configuration from which to build a schema export.
* @throws HibernateException Indicates problem preparing for schema export.
*/
public SchemaExport(Configuration configuration) {
this( configuration, configuration.getProperties() );
}
/**
* Create a schema exporter for the given Configuration, with the given
* database connection properties.
*
* @param configuration The configuration from which to build a schema export.
* @param properties The properties from which to configure connectivity etc.
* @throws HibernateException Indicates problem preparing for schema export.
*
* @deprecated properties may be specified via the Configuration object
*/
@Deprecated
public SchemaExport(Configuration configuration, Properties properties) throws HibernateException {
final Dialect dialect = Dialect.getDialect( properties );
Properties props = new Properties();
props.putAll( dialect.getDefaultProperties() );
props.putAll( properties );
this.connectionHelper = new ManagedProviderConnectionHelper( props );
this.sqlStatementLogger = new SqlStatementLogger( false, true );
this.formatter = FormatStyle.DDL.getFormatter();
this.sqlExceptionHelper = new SqlExceptionHelper();
this.importFiles = ConfigurationHelper.getString(
AvailableSettings.HBM2DDL_IMPORT_FILES,
properties,
DEFAULT_IMPORT_FILE
);
this.dropSQL = configuration.generateDropSchemaScript( dialect );
this.createSQL = configuration.generateSchemaCreationScript( dialect );
}
/**
* Create a schema exporter for the given Configuration, using the supplied connection for connectivity.
*
* @param configuration The configuration to use.
* @param connection The JDBC connection to use.
* @throws HibernateException Indicates problem preparing for schema export.
*/
public SchemaExport(Configuration configuration, Connection connection) throws HibernateException {
this.connectionHelper = new SuppliedConnectionHelper( connection );
this.sqlStatementLogger = new SqlStatementLogger( false, true );
this.formatter = FormatStyle.DDL.getFormatter();
this.sqlExceptionHelper = new SqlExceptionHelper();
this.importFiles = ConfigurationHelper.getString(
AvailableSettings.HBM2DDL_IMPORT_FILES,
configuration.getProperties(),
DEFAULT_IMPORT_FILE
);
final Dialect dialect = Dialect.getDialect( configuration.getProperties() );
this.dropSQL = configuration.generateDropSchemaScript( dialect );
this.createSQL = configuration.generateSchemaCreationScript( dialect );
}
public SchemaExport(
ConnectionHelper connectionHelper,
String[] dropSql,
String[] createSql) {
this.connectionHelper = connectionHelper;
this.dropSQL = dropSql;
this.createSQL = createSql;
this.importFiles = "";
this.sqlStatementLogger = new SqlStatementLogger( false, true );
this.sqlExceptionHelper = new SqlExceptionHelper();
this.formatter = FormatStyle.DDL.getFormatter();
}
/**
* For generating a export script file, this is the file which will be written.
*
* @param filename The name of the file to which to write the export script.
* @return this
*/
public SchemaExport setOutputFile(String filename) {
outputFile = filename;
return this;
}
/**
* Set the end of statement delimiter
*
* @param delimiter The delimiter
* @return this
*/
public SchemaExport setDelimiter(String delimiter) {
this.delimiter = delimiter;
return this;
}
/**
* Should we format the sql strings?
*
* @param format Should we format SQL strings
* @return this
*/
public SchemaExport setFormat(boolean format) {
this.formatter = ( format ? FormatStyle.DDL : FormatStyle.NONE ).getFormatter();
return this;
}
/**
* Set import.sql command extractor. By default {@link SingleLineSqlCommandExtractor} is used.
*
* @param importSqlCommandExtractor import.sql command extractor.
* @return this
*/
public SchemaExport setImportSqlCommandExtractor(ImportSqlCommandExtractor importSqlCommandExtractor) {
this.importSqlCommandExtractor = importSqlCommandExtractor;
return this;
}
/**
* Should we stop once an error occurs?
*
* @param haltOnError True if export should stop after error.
* @return this
*/
public SchemaExport setHaltOnError(boolean haltOnError) {
this.haltOnError = haltOnError;
return this;
}
/**
* Run the schema creation script; drop script is automatically
* executed before running the creation script.
*
* @param script print the DDL to the console
* @param export export the script to the database
*/
public void create(boolean script, boolean export) {
create( Target.interpret( script, export ) );
}
/**
* Run the schema creation script; drop script is automatically
* executed before running the creation script.
*
* @param output the target of the script.
*/
public void create(Target output) {
// need to drop tables before creating so need to specify Type.BOTH
execute( output, Type.BOTH );
}
/**
* Run the drop schema script.
*
* @param script print the DDL to the console
* @param export export the script to the database
*/
public void drop(boolean script, boolean export) {
drop( Target.interpret( script, export ) );
}
public void drop(Target output) {
execute( output, Type.DROP );
}
public void execute(boolean script, boolean export, boolean justDrop, boolean justCreate) {
execute( Target.interpret( script, export ), interpretType( justDrop, justCreate ) );
}
private Type interpretType(boolean justDrop, boolean justCreate) {
if ( justDrop ) {
return Type.DROP;
}
else if ( justCreate ) {
return Type.CREATE;
}
else {
return Type.BOTH;
}
}
public void execute(Target output, Type type) {
if ( (outputFile == null && output == Target.NONE) || type == SchemaExport.Type.NONE ) {
return;
}
exceptions.clear();
LOG.runningHbm2ddlSchemaExport();
final List importFileReaders = new ArrayList();
for ( String currentFile : importFiles.split(",") ) {
try {
final String resourceName = currentFile.trim();
InputStream stream = ConfigHelper.getResourceAsStream( resourceName );
importFileReaders.add( new NamedReader( resourceName, stream ) );
}
catch ( HibernateException e ) {
LOG.debugf("Import file not found: %s", currentFile);
}
}
final List exporters = new ArrayList();
try {
// prepare exporters ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
if ( output.doScript() ) {
exporters.add( new ScriptExporter() );
}
if ( outputFile != null ) {
exporters.add( new FileExporter( outputFile ) );
}
if ( output.doExport() ) {
exporters.add( new DatabaseExporter( connectionHelper, sqlExceptionHelper ) );
}
// perform exporters ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
if ( type.doDrop() ) {
perform( dropSQL, exporters );
}
if ( type.doCreate() ) {
perform( createSQL, exporters );
if ( ! importFileReaders.isEmpty() ) {
for ( NamedReader namedReader : importFileReaders ) {
importScript( namedReader, exporters );
}
}
}
}
catch (Exception e) {
exceptions.add( e );
LOG.schemaExportUnsuccessful( e );
}
finally {
// release exporters ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
for ( Exporter exporter : exporters ) {
try {
exporter.release();
}
catch (Exception ignore) {
}
}
// release the named readers from import scripts
for ( NamedReader namedReader : importFileReaders ) {
try {
namedReader.getReader().close();
}
catch (Exception ignore) {
}
}
LOG.schemaExportComplete();
}
}
private void perform(String[] sqlCommands, List exporters) {
for ( String sqlCommand : sqlCommands ) {
String formatted = formatter.format( sqlCommand );
if ( delimiter != null ) {
formatted += delimiter;
}
sqlStatementLogger.logStatement( sqlCommand, formatter );
for ( Exporter exporter : exporters ) {
try {
exporter.export( formatted );
}
catch (Exception e) {
if ( haltOnError ) {
throw new HibernateException( "Error during DDL export", e );
}
exceptions.add( e );
LOG.unsuccessfulCreate( sqlCommand );
LOG.error( e.getMessage() );
}
}
}
}
private void importScript(NamedReader namedReader, List exporters) throws Exception {
BufferedReader reader = new BufferedReader( namedReader.getReader() );
String[] statements = importSqlCommandExtractor.extractCommands( reader );
if (statements != null) {
for ( String statement : statements ) {
if ( statement != null ) {
String trimmedSql = statement.trim();
if ( trimmedSql.endsWith( ";" )) {
trimmedSql = trimmedSql.substring( 0, statement.length() - 1 );
}
if ( !StringHelper.isEmpty( trimmedSql ) ) {
try {
for ( Exporter exporter : exporters ) {
if ( exporter.acceptsImportScripts() ) {
exporter.export( trimmedSql );
}
}
}
catch ( Exception e ) {
if (haltOnError) {
throw new ImportScriptException( "Error during statement execution (file: '"
+ namedReader.getName() + "'): " + trimmedSql, e );
}
exceptions.add(e);
LOG.unsuccessful(trimmedSql);
LOG.error(e.getMessage());
}
}
}
}
}
}
private static class NamedReader {
private final Reader reader;
private final String name;
public NamedReader(String name, InputStream stream) {
this.name = name;
this.reader = new InputStreamReader( stream );
}
public Reader getReader() {
return reader;
}
public String getName() {
return name;
}
}
private void execute(boolean script, boolean export, Writer fileOutput, Statement statement, final String sql)
throws IOException, SQLException {
final SqlExceptionHelper sqlExceptionHelper = new SqlExceptionHelper();
String formatted = formatter.format( sql );
if (delimiter != null) formatted += delimiter;
if (script) System.out.println(formatted);
LOG.debug(formatted);
if ( outputFile != null ) {
fileOutput.write( formatted + "\n" );
}
if ( export ) {
statement.executeUpdate( sql );
try {
SQLWarning warnings = statement.getWarnings();
if ( warnings != null) {
sqlExceptionHelper.logAndClearWarnings( connectionHelper.getConnection() );
}
}
catch( SQLException sqle ) {
LOG.unableToLogSqlWarnings(sqle);
}
}
}
private static StandardServiceRegistryImpl createServiceRegistry(Properties properties) {
Environment.verifyProperties( properties );
ConfigurationHelper.resolvePlaceHolders( properties );
return (StandardServiceRegistryImpl) new StandardServiceRegistryBuilder().applySettings( properties ).build();
}
public static void main(String[] args) {
try {
Configuration cfg = new Configuration();
boolean script = true;
boolean drop = false;
boolean create = false;
boolean halt = false;
boolean export = true;
String outFile = null;
String importFile = DEFAULT_IMPORT_FILE;
String propFile = null;
boolean format = false;
String delim = null;
for ( int i = 0; i < args.length; i++ ) {
if ( args[i].startsWith( "--" ) ) {
if ( args[i].equals( "--quiet" ) ) {
script = false;
}
else if ( args[i].equals( "--drop" ) ) {
drop = true;
}
else if ( args[i].equals( "--create" ) ) {
create = true;
}
else if ( args[i].equals( "--haltonerror" ) ) {
halt = true;
}
else if ( args[i].equals( "--text" ) ) {
export = false;
}
else if ( args[i].startsWith( "--output=" ) ) {
outFile = args[i].substring( 9 );
}
else if ( args[i].startsWith( "--import=" ) ) {
importFile = args[i].substring( 9 );
}
else if ( args[i].startsWith( "--properties=" ) ) {
propFile = args[i].substring( 13 );
}
else if ( args[i].equals( "--format" ) ) {
format = true;
}
else if ( args[i].startsWith( "--delimiter=" ) ) {
delim = args[i].substring( 12 );
}
else if ( args[i].startsWith( "--config=" ) ) {
cfg.configure( args[i].substring( 9 ) );
}
else if ( args[i].startsWith( "--naming=" ) ) {
cfg.setNamingStrategy(
( NamingStrategy ) ReflectHelper.classForName( args[i].substring( 9 ) )
.newInstance()
);
}
}
else {
String filename = args[i];
if ( filename.endsWith( ".jar" ) ) {
cfg.addJar( new File( filename ) );
}
else {
cfg.addFile( filename );
}
}
}
if ( propFile != null ) {
Properties props = new Properties();
props.putAll( cfg.getProperties() );
props.load( new FileInputStream( propFile ) );
cfg.setProperties( props );
}
if (importFile != null) {
cfg.setProperty( AvailableSettings.HBM2DDL_IMPORT_FILES, importFile );
}
StandardServiceRegistryImpl serviceRegistry = createServiceRegistry( cfg.getProperties() );
try {
SchemaExport se = new SchemaExport( serviceRegistry, cfg )
.setHaltOnError( halt )
.setOutputFile( outFile )
.setDelimiter( delim )
.setImportSqlCommandExtractor( serviceRegistry.getService( ImportSqlCommandExtractor.class ) );
if ( format ) {
se.setFormat( true );
}
se.execute( script, export, drop, create );
}
finally {
serviceRegistry.destroy();
}
}
catch ( Exception e ) {
LOG.unableToCreateSchema(e);
e.printStackTrace();
}
}
/**
* Returns a List of all Exceptions which occured during the export.
*
* @return A List containig the Exceptions occured during the export
*/
public List getExceptions() {
return exceptions;
}
}
