/**
* Copyright (c) 2010 Yahoo! Inc. 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. See accompanying
* LICENSE file.
*/
package com.yahoo.ycsb.database;
import com.yahoo.ycsb.UnknownDataStoreException;
/**
* Creates a DB layer by dynamically classloading the specified DB class.
*/
public class DBFactory {
@SuppressWarnings("rawtypes")
public static DB newDB(String dbname)
throws UnknownDataStoreException {
ClassLoader classLoader = DBFactory.class.getClassLoader();
DB ret = null;
try {
Class dbclass = classLoader.loadClass(dbname);
// System.out.println("dbclass.getName() = " + dbclass.getName());
ret = (DB) dbclass.newInstance();
} catch (ClassCastException e) {
throw new UnknownDataStoreException(e);
} catch (ClassNotFoundException e) {
throw new UnknownDataStoreException(e);
} catch (InstantiationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalAccessException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return new DBWrapper(ret);
}
}