/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.hadoop.raid;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import org.apache.hadoop.conf.Configuration;
public class SimpleDBConnectionFactory implements DBConnectionFactory {
private Configuration conf;
private String user;
private String password;
private long dbOpsSleepTime = DEFAULT_DB_OPS_SLEEP_TIME;
public static final String DB_CONNECTION_USER = "hdfs.raid.db.user";
public static final String DB_CONNECTION_PASSWORD = "hdfs.raid.db.password";
public static final String DB_CONNECTION_URL = "hdfs.raid.db.connection.url";
@Override
public void initialize(Configuration conf) throws IOException {
this.conf = conf;
this.user = conf.get(DB_CONNECTION_USER, "");
this.password = conf.get(DB_CONNECTION_PASSWORD, "");
this.dbOpsSleepTime = conf.getLong(RAID_DB_OPS_SLEEP_TIME_KEY,
DEFAULT_DB_OPS_SLEEP_TIME);
}
/**
* return connection url:
* example: jdbc:mysql://localhost:3306/db?
*/
@Override
public String getUrl(boolean isWrite) throws IOException {
return conf.get(DB_CONNECTION_URL, "");
}
@Override
public Connection getConnection(String url) throws SQLException {
return DriverManager.getConnection(url, user, password);
}
@Override
public long getDBOpsSleepTime() {
return dbOpsSleepTime;
}
}