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/*
* ============LICENSE_START====================================================
* org.onap.music.mdbc
* =============================================================================
* Copyright (C) 2018 AT&T Intellectual Property. 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.
* ============LICENSE_END======================================================
*/
package org.onap.music.mdbc.examples;
import java.sql.*;
import java.util.Scanner;
import org.apache.calcite.avatica.remote.Driver;
public class MdbcTestClient {
public static class Hr {
public final Employee[] emps = {
new Employee(100, "Bill"),
new Employee(200, "Eric"),
new Employee(150, "Sebastian"),
};
}
public static class Employee {
public final int empid;
public final String name;
public Employee(int empid, String name) {
this.empid = empid;
this.name = name;
}
}
public static void main(String[] args){
try {
Class.forName("org.apache.calcite.avatica.remote.Driver");
} catch (ClassNotFoundException e) {
e.printStackTrace();
System.exit(1);
}
Connection connection;
try {
String metricURL = "http://localhost:30000/test";
if (args.length>0 && args[0] != null) {
metricURL = args[0];
}
connection = DriverManager.getConnection("jdbc:avatica:remote:url=" + metricURL+ ";serialization=protobuf");
} catch (SQLException e) {
e.printStackTrace();
return;
}
try {
connection.setAutoCommit(false);
} catch (SQLException e) {
e.printStackTrace();
return;
}
final String sql = "CREATE TABLE IF NOT EXISTS Persons (\n" +
" PersonID int,\n" +
" LastName varchar(255),\n" +
" FirstName varchar(255),\n" +
" Address varchar(255),\n" +
" City varchar(255),\n" +
" PRIMARY KEY (PersonID,LastName)" +
");";
Statement stmt;
try {
stmt = connection.createStatement();
} catch (SQLException e) {
e.printStackTrace();
return;
}
boolean execute = true;
// try {
// execute = stmt.execute(sql);
// } catch (SQLException e) {
// e.printStackTrace();
// return;
// }
if (execute) {
try {
connection.commit();
} catch (SQLException e) {
e.printStackTrace();
}
}
try {
stmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
final String insertSQL = "INSERT INTO Persons VALUES (1, 'Martinez', 'Juan', 'KACB', 'ATLANTA');";
final String insertSQL1 = "DELETE FROM Persons WHERE PersonID=2;";
final String insertSQL2 = "INSERT INTO Persons VALUES (2, 'Smith', 'JOHN', 'GNOC', 'BEDMINSTER');";
final String insertSQL3 = "UPDATE Persons SET FirstName='JOSH' WHERE LastName='Smith';";
final String insertSQL4 = "UPDATE Persons SET FirstName='JOHN' WHERE LastName='Smith';";
final String selectSQL1 = "SELECT * FROM Persons;";
Statement insertStmt;
try {
insertStmt = connection.createStatement();
} catch (SQLException e) {
e.printStackTrace();
return;
}
try {
//execute = insertStmt.execute(insertSQL);
//execute = insertStmt.execute(insertSQL1);
//execute = insertStmt.execute(insertSQL2);
//execute = insertStmt.execute(insertSQL3);
//execute = insertStmt.execute(insertSQL4);
///*
ResultSet rs = insertStmt.executeQuery(selectSQL1);
while (rs.next()) {
System.out.printf("%d, %s, %s\n", rs.getInt("PersonID"), rs.getString("FirstName"), rs.getString("LastName"));
}
//pause for user input
Scanner scanner = new Scanner(System.in);
System.out.println("Please hit <Enter> to complete the transaction and continue");
String line = scanner.nextLine();
scanner.close();
//*/
} catch (SQLException e) {
e.printStackTrace();
return;
}
try {
connection.commit();
} catch (SQLException e) {
e.printStackTrace();
return;
}
try {
stmt.close();
insertStmt.close();
} catch (SQLException e) {
e.printStackTrace();
}
try {
connection.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
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