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annotate tests/Test_Csendthread.java @ 0:a5a898f6886c

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Copy of MonetDB java directory changeset e6e32756ad31.
author Sjoerd Mullender <sjoerd@acm.org>
date Wed, 21 Sep 2016 09:34:48 +0200 (2016-09-21)
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children 04fbf3655452
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1 /*
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2 * This Source Code Form is subject to the terms of the Mozilla Public
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3 * License, v. 2.0. If a copy of the MPL was not distributed with this
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4 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
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5 *
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6 * Copyright 1997 - July 2008 CWI, August 2008 - 2016 MonetDB B.V.
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7 */
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8
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9 import java.sql.*;
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10
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11 public class Test_Csendthread {
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12 public static void main(String[] args) throws Exception {
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13 Class.forName("nl.cwi.monetdb.jdbc.MonetDriver");
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14
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15 System.out.println("0. active threads: " + Thread.activeCount());
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16
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17 StringBuilder sb = new StringBuilder();
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18 sb.append("SELECT 1");
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19 for (int i = 0; i < 256; i++) {
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20 sb.append("-- ADDING DUMMY TEXT AS COMMENT TO MAKE THE QUERY VERY VERY VERY VERY LONG\n");
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21 }
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22 sb.append(";\n");
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23 String longQuery = sb.toString();
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24
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25 for (int i = 0; i < 10; i++) {
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26 for (int j = 0; j < 10; j++) {
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27 Connection conn = DriverManager.getConnection(args[0]);
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28 try {
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29 Statement st = conn.createStatement();
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30 st.execute(longQuery);
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31 st.close();
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32 } finally {
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33 conn.close();
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34 }
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35 }
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36 System.out.println("1. active threads: " + Thread.activeCount());
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37 }
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38 System.out.println("2. active threads: " + Thread.activeCount());
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39 }
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40 }