/*
* Copyright (c) 2008, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* 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.wso2.carbon.registry.core.jdbc.indexing;
import org.apache.lucene.store.jdbc.dialect.DerbyDialect;
import org.apache.lucene.store.jdbc.dialect.Dialect;
import org.apache.lucene.store.jdbc.dialect.H2Dialect;
import org.apache.lucene.store.jdbc.dialect.HSQLDialect;
import org.apache.lucene.store.jdbc.dialect.OracleDialect;
import org.apache.lucene.store.jdbc.dialect.SQLServerDialect;
import org.wso2.carbon.registry.core.exceptions.RegistryException;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.SQLException;
public class DialectFactory {
public static Dialect getDialect(DataSource dataSource) throws RegistryException {
Connection conn = null;
try {
conn = dataSource.getConnection();
DatabaseMetaData metaData = conn.getMetaData();
if (metaData.getDatabaseProductName().matches("(?i).*hsql.*")) {
return new HSQLDialect();
} else if (metaData.getDatabaseProductName().matches("(?i).*derby.*")) {
return new DerbyDialect();
} else if (metaData.getDatabaseProductName().matches("(?i).*mysql.*")) {
return new MySQLDialectDriver();
} else if (metaData.getDatabaseProductName().matches("(?i).*oracle.*")) {
return new OracleDialect();
} else if (metaData.getDatabaseProductName().matches("(?i).*microsoft.*")) {
return new SQLServerDialect();
} else if (metaData.getDatabaseProductName().matches("(?i).*h2.*")) {
return new H2Dialect();
} else {
String msg = "Unsupported database: " + metaData.getDatabaseProductName() +
". Database will not be created automatically by the WSO2 Registry. " +
"Please create the database using appropriate database scripts for " +
"the database.";
return null;
}
} catch (SQLException e) {
String msg = "Failed to detect dialect " + e.getMessage();
throw new RegistryException(msg, e);
} finally {
try {
if (conn != null) {
conn.close();
}
} catch (SQLException e) {
}
}
}
}