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−/*
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− * This Source Code Form is subject to the terms of the Mozilla Public
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− * License, v. 2.0.  If a copy of the MPL was not distributed with this
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− * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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− *
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− * Copyright 1997 - July 2008 CWI, August 2008 - 2020 MonetDB B.V.
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− */
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−
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−import java.sql.*;
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−
+
−public class BugConcurrent_clients_SF_1504657 {
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−	public static void main(String[] args) throws Exception{
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−		Connection con1 = null, con2 = null, con3 = null;	
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−		Statement stmt1 = null, stmt2 = null, stmt3 = null;
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−		ResultSet rs1 = null, rs2= null, rs3 = null;
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−		// Class.forName("nl.cwi.monetdb.jdbc.MonetDriver");	// not needed anymore for self registering JDBC drivers
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−		con1 = DriverManager.getConnection(args[0]);
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−		con2 = DriverManager.getConnection(args[0]);
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−		con3 = DriverManager.getConnection(args[0]);
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−		stmt1 = con1.createStatement();
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−		stmt2 = con2.createStatement();
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−		stmt3 = con3.createStatement();
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−		//DatabaseMetaData dbmd = con.getMetaData();
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−
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−		// >> true: auto commit should be on by default
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−		System.out.println("0. true\t" + con1.getAutoCommit());
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−		System.out.println("0. true\t" + con2.getAutoCommit());
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−		System.out.println("0. true\t" + con3.getAutoCommit());
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−
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−		// test the creation of a table with concurrent clients
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−		try {
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−			System.out.println("1.1. create table t1 using client 1...");
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−			stmt1.executeUpdate("CREATE TABLE t1 ( id int, name varchar(1024) )");
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−			System.out.println("passed :)");
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−			System.out.println("1.2. check table existence in client 2...");
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−			rs2 = stmt2.executeQuery("SELECT name FROM tables where name LIKE 't1'");
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−			while (rs2.next())
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−				System.out.println(rs2.getString("name"));
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−			System.out.println("passed :)");
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−			System.out.println("1.3. check table existence in client 3...");
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−			rs3 = stmt3.executeQuery("SELECT name FROM tables where name LIKE 't1'");
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−			while (rs3.next())
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−				System.out.println(rs3.getString("name"));
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−			System.out.println("passed :)");
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−		} catch (SQLException e) {
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−			// this means we failed (table not there perhaps?)
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−			System.out.println("FAILED 1 :( " + e.getMessage());
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−			System.out.println("ABORTING TEST!!!");
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−			con1.close();
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−			con2.close();
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−			con3.close();
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−			System.exit(-1);
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−		}
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−
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−		// test the insertion of values with concurrent clients
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−		try {
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−			System.out.println("2 insert into t1 using client 1...");
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−			stmt1.executeUpdate("INSERT INTO t1 values( 1, 'monetdb' )");
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−			System.out.println("passed :)");
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−			stmt1.executeUpdate("INSERT INTO t1 values( 2, 'monet' )");
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−			System.out.println("passed :)");
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−			stmt1.executeUpdate("INSERT INTO t1 values( 3, 'mon' )");
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−			System.out.println("passed :)");
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−			System.out.println("2.1. check table status with client 1...");
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−			rs1 = stmt1.executeQuery("SELECT * FROM t1");
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−			while (rs1.next())
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−				System.out.println(rs1.getInt("id")+", "+ rs1.getString("name"));
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−			System.out.println("passed :)");
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−			System.out.println("2.2. check table status with client 2...");
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−			rs2 = stmt2.executeQuery("SELECT * FROM t1");
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−			while (rs2.next())
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−				System.out.println(rs2.getInt("id")+", "+ rs2.getString("name"));
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−			System.out.println("passed :)");
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−			System.out.println("2.3. check table status with client 3...");
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−			rs3 = stmt3.executeQuery("SELECT * FROM t1");
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−			while (rs3.next())
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−				System.out.println(rs3.getInt("id")+", "+ rs3.getString("name"));
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−			System.out.println("passed :)");
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−		} catch (SQLException e) {
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−			// this means we failed (table not there perhaps?)
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−			System.out.println("FAILED 2 :( " + e.getMessage());
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−			System.out.println("ABORTING TEST!!!");
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−			if (rs1 != null) rs1.close();
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−			if (rs2 != null) rs2.close();
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−			if (rs3 != null) rs3.close();
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−			con1.close();
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−			con2.close();
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−			con3.close();
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−			System.exit(-1);
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−		}
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−
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−		// test the insertion of values with concurrent clients
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−		try {
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−			System.out.println("3 insert into t1 using client 2...");
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−			stmt2.executeUpdate("INSERT INTO t1 values( 4, 'monetdb' )");
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−			System.out.println("passed :)");
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−			stmt2.executeUpdate("INSERT INTO t1 values( 5, 'monet' )");
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−			System.out.println("passed :)");
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−			stmt2.executeUpdate("INSERT INTO t1 values( 6, 'mon' )");
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−			System.out.println("passed :)");
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−			System.out.println("3.1. check table status with client 1...");
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−			rs1 = stmt1.executeQuery("SELECT * FROM t1");
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−			while (rs1.next())
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−				System.out.println(rs1.getInt("id")+", "+ rs1.getString("name"));
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−			System.out.println("passed :)");
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−			System.out.println("3.2. check table status with client 2...");
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−			rs2 = stmt2.executeQuery("SELECT * FROM t1");
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−			while (rs2.next())
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−				System.out.println(rs2.getInt("id")+", "+ rs2.getString("name"));
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−			System.out.println("passed :)");
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−			System.out.println("3.3. check table status with client 3...");
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−			rs3 = stmt3.executeQuery("SELECT * FROM t1");
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−			while (rs3.next())
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−				System.out.println(rs3.getInt("id")+", "+ rs3.getString("name"));
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−			System.out.println("passed :)");
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−		} catch (SQLException e) {
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−			// this means we failed (table not there perhaps?)
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−			System.out.println("FAILED 3 :( " + e.getMessage());
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−			System.out.println("ABORTING TEST!!!");
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−			if (rs1 != null) rs1.close();
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−			if (rs2 != null) rs2.close();
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−			if (rs3 != null) rs3.close();
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−			con1.close();
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−			con2.close();
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−			con3.close();
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−			System.exit(-1);
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−		}
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−
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−		// test the insertion of values with concurrent clients
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−		try {
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−			System.out.println("4 insert into t1 using client 3...");
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−			stmt3.executeUpdate("INSERT INTO t1 values( 7, 'monetdb' )");
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−			System.out.println("passed :)");
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−			stmt3.executeUpdate("INSERT INTO t1 values( 8, 'monet' )");
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−			System.out.println("passed :)");
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−			stmt3.executeUpdate("INSERT INTO t1 values( 9, 'mon' )");
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−			System.out.println("passed :)");
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−			System.out.println("4.1. check table status with client 1...");
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−			rs1 = stmt1.executeQuery("SELECT * FROM t1");
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−			while (rs1.next())
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−				System.out.println(rs1.getInt("id")+", "+ rs1.getString("name"));
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−			System.out.println("passed :)");
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−			System.out.println("4.2. check table status with client 2...");
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−			rs2 = stmt2.executeQuery("SELECT * FROM t1");
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−			while (rs2.next())
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−				System.out.println(rs2.getInt("id")+", "+ rs2.getString("name"));
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−			System.out.println("passed :)");
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−			System.out.println("4.3. check table status with client 3...");
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−			rs3 = stmt3.executeQuery("SELECT * FROM t1");
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−			while (rs3.next())
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−				System.out.println(rs3.getInt("id")+", "+ rs3.getString("name"));
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−			System.out.println("passed :)");
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−		} catch (SQLException e) {
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−			// this means we failed (table not there perhaps?)
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−			System.out.println("FAILED 4 :( " + e.getMessage());
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−			System.out.println("ABORTING TEST!!!");
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−			if (rs1 != null) rs1.close();
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−			if (rs2 != null) rs2.close();
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−			if (rs3 != null) rs3.close();
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−			con1.close();
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−			con2.close();
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−			con3.close();
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−			System.exit(-1);
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−		}
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−
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−		if (rs1 != null) rs1.close();
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−		if (rs2 != null) rs2.close();
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−		if (rs3 != null) rs3.close();
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−
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−		// cleanup
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−		try {
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−			stmt3.executeUpdate("DROP TABLE t1");
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−		} catch (SQLException e) {
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−			System.out.println("FAILED to clean up! :( " + e.getMessage());
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−		}
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−
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−		con1.close();
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−		con2.close();
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−		con3.close();
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−	}
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−}