//$Id: SchemaValidator.java 9249 2006-02-10 03:48:37Z steveebersole $
package org.hibernate.tool.hbm2ddl;
import java.io.FileInputStream;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Properties;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.HibernateException;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.NamingStrategy;
import org.hibernate.cfg.Settings;
import org.hibernate.dialect.Dialect;
import org.hibernate.util.ReflectHelper;
/**
* A commandline tool to update a database schema. May also be called from
* inside an application.
*
* @author Christoph Sturm
*/
public class SchemaValidator {
private static final Log log = LogFactory.getLog( SchemaValidator.class );
private ConnectionHelper connectionHelper;
private Configuration configuration;
private Dialect dialect;
public SchemaValidator(Configuration cfg) throws HibernateException {
this( cfg, cfg.getProperties() );
}
public SchemaValidator(Configuration cfg, Properties connectionProperties) throws HibernateException {
this.configuration = cfg;
dialect = Dialect.getDialect( connectionProperties );
Properties props = new Properties();
props.putAll( dialect.getDefaultProperties() );
props.putAll( connectionProperties );
connectionHelper = new ManagedProviderConnectionHelper( props );
}
public SchemaValidator(Configuration cfg, Settings settings) throws HibernateException {
this.configuration = cfg;
dialect = settings.getDialect();
connectionHelper = new SuppliedConnectionProviderConnectionHelper(
settings.getConnectionProvider()
);
}
public static void main(String[] args) {
try {
Configuration cfg = new Configuration();
String propFile = null;
for ( int i = 0; i < args.length; i++ ) {
if ( args[i].startsWith( "--" ) ) {
if ( args[i].startsWith( "--properties=" ) ) {
propFile = args[i].substring( 13 );
}
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 {
cfg.addFile( args[i] );
}
}
if ( propFile != null ) {
Properties props = new Properties();
props.putAll( cfg.getProperties() );
props.load( new FileInputStream( propFile ) );
cfg.setProperties( props );
}
new SchemaValidator( cfg ).validate();
}
catch ( Exception e ) {
log.error( "Error running schema update", e );
e.printStackTrace();
}
}
/**
* Perform the validations.
*/
public void validate() {
log.info( "Running schema validator" );
Connection connection = null;
try {
DatabaseMetadata meta;
try {
log.info( "fetching database metadata" );
connectionHelper.prepare( false );
connection = connectionHelper.getConnection();
meta = new DatabaseMetadata( connection, dialect, false );
}
catch ( SQLException sqle ) {
log.error( "could not get database metadata", sqle );
throw sqle;
}
configuration.validateSchema( dialect, meta );
}
catch ( SQLException e ) {
log.error( "could not complete schema validation", e );
}
finally {
try {
connectionHelper.release();
}
catch ( Exception e ) {
log.error( "Error closing connection", e );
}
}
}
}