/*
* Copyright 2006 Le Duc Bao, Ralf Joachim
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package org.castor.ddlgen;
/**
* This class handles the creation for various databse generators.
*
* @author <a href="mailto:leducbao AT gmail DOT com">Le Duc Bao</a>
* @author <a href="mailto:ralf DOT joachim AT syscon DOT eu">Ralf Joachim</a>
* @version $Revision: 5951 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
* @since 1.1
*/
public final class GeneratorFactory {
//--------------------------------------------------------------------------
/**
* Create DDL Generator for specified database engine with given global and specific
* configurations.
*
* @param engine Database engine.
* @param globalConf Global configuration file.
* @param specificConf Specific configuration file for database engine.
* @return DDL generator for database engine.
* @throws GeneratorException If database engine has not been specified or no
* generator is available for the database engine.
*/
public static Generator createDDLGenerator(final String engine,
final String globalConf, final String specificConf)
throws GeneratorException {
DDLGenConfiguration config = new DDLGenConfiguration();
// load default global configuration
config.addProperties(Generator.GLOBAL_CONFIG_PATH + Generator.GLOBAL_CONFIG_NAME);
// overload with global configuration given on commandline
if (globalConf != null) { config.addProperties(globalConf); }
GeneratorRegistry registry = new GeneratorRegistry(config);
String eng = config.getStringValue(DDLGenConfiguration.DEFAULT_ENGINE_KEY, "");
if (engine != null) { eng = engine; }
Generator gen = registry.getGenerator(eng.toLowerCase());
// load default configuration for specific database engine
config.addProperties(gen.getEngineConfigPath() + gen.getEngineConfigName());
// overload with specific configuration given on commandline
if (specificConf != null) { config.addProperties(specificConf); }
// create key generator registry to be used by the generator
gen.setKeyGenRegistry(new KeyGeneratorRegistry(config));
// initialize generator
gen.initialize();
return gen;
}
//--------------------------------------------------------------------------
/**
* Hide constructor of utility class.
*/
private GeneratorFactory() { }
//--------------------------------------------------------------------------
}