/* This file is part of VoltDB.
* Copyright (C) 2008-2017 VoltDB Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
package genqa;
import java.net.Socket;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.Properties;
import genqa.VerifierUtils.Config;
public class JDBCGetData {
static Connection conn;
static String selectSql = "SELECT * FROM \"EXPORT_PARTITIONED_TABLE\" where \"ROWID\" = ?;";
static String selectGeoSql = "SELECT * FROM \"EXPORT_GEO_PARTITIONED_TABLE\" where \"ROWID\" = ?;";
static PreparedStatement selectStmt = null;
/**
* Connect and prepare the select to make the per row handling
* as efficient as possible, though it's still pretty pokey
* @param config
* @return
*/
public static Connection jdbcConnect(Config config) {
/* some jdbc drivers may not support connection timout semantics,
so pre-test the connection.
*/
String[] a = config.host_port.split(":");
try {
Socket s = new Socket(a[0], Integer.valueOf(a[1]));
s.close();
} catch (Exception e) {
System.err.println("Service is not up at '" + config.host_port + "' " + e);
e.printStackTrace();
System.exit(-1);
}
try {
Class.forName(config.driver);
} catch (ClassNotFoundException e) {
System.err.println("Could not find the JDBC driver class.\n");
e.printStackTrace();
System.exit(-1);
}
String connectString = "jdbc:" + config.jdbcDBMS + "://" + config.host_port + "/" + config.jdbcDatabase;
Properties myProp = new Properties();
myProp.put("user", config.jdbcUser);
myProp.put("password", config.jdbcPassword);
try {
conn = DriverManager.getConnection(connectString, myProp);
System.out.println("Connected!");
if ( config.usegeo ) {
selectStmt = conn.prepareStatement(selectGeoSql);
} else {
selectStmt = conn.prepareStatement(selectSql);
}
} catch (SQLException e) {
System.err.println("Could not connect to the database with connect string " + connectString + ", exception: " + e);
e.printStackTrace();
System.exit(-1);
}
return conn;
}
static ResultSet jdbcRead(long rowid) {
ResultSet rs = null;
try {
selectStmt.setLong(1, rowid);
rs = selectStmt.executeQuery();
} catch (SQLException e) {
System.err.println("Exception in DB row access.\n");
e.printStackTrace();
System.exit(-1);
}
return rs;
}
}