| /* |
| * Copyright 2004-2005 the original author or authors. |
| * |
| * 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.codehaus.groovy.grails.orm.hibernate.support; |
| |
| import java.util.Properties; |
| |
| import javax.sql.DataSource; |
| |
| import org.apache.commons.lang.StringUtils; |
| import org.codehaus.groovy.grails.orm.hibernate.exceptions.CouldNotDetermineHibernateDialectException; |
| import org.springframework.beans.factory.FactoryBean; |
| import org.springframework.beans.factory.InitializingBean; |
| import org.springframework.jdbc.support.JdbcUtils; |
| |
| /** |
| * |
| * |
| * @author Steven Devijver |
| * @since Aug 6, 2005 |
| */ |
| public class HibernateDialectDetectorFactoryBean implements FactoryBean, |
| InitializingBean { |
| |
| private DataSource dataSource = null; |
| private Properties vendorNameDialectMappings = null; |
| private String hibernateDialectClassName = null; |
| |
| public HibernateDialectDetectorFactoryBean() { |
| super(); |
| } |
| |
| public void setDataSource(DataSource dataSource) { |
| this.dataSource = dataSource; |
| } |
| |
| public void setVendorNameDialectMappings(Properties mappings) { |
| this.vendorNameDialectMappings = mappings; |
| } |
| |
| public Object getObject() throws Exception { |
| return this.hibernateDialectClassName; |
| } |
| |
| public Class getObjectType() { |
| return String.class; |
| } |
| |
| public boolean isSingleton() { |
| return true; |
| } |
| |
| public void afterPropertiesSet() throws Exception { |
| if (this.dataSource == null) { |
| throw new IllegalStateException("Data source is not set!"); |
| } |
| if (this.vendorNameDialectMappings == null) { |
| throw new IllegalStateException("Vendor name/dialect mappings are not set!"); |
| } |
| |
| String dbName = (String)JdbcUtils.extractDatabaseMetaData(this.dataSource, "getDatabaseProductName"); |
| this.hibernateDialectClassName = this.vendorNameDialectMappings.getProperty(dbName); |
| |
| if (StringUtils.isBlank(this.hibernateDialectClassName)) { |
| throw new CouldNotDetermineHibernateDialectException("Could not determine Hibernate dialect for database name [" + dbName + "]!"); |
| } |
| } |
| |
| } |