/*
 *
 * MariaDB Client for Java
 *
 * Copyright (c) 2012-2014 Monty Program Ab.
 * Copyright (c) 2015-2017 MariaDB Ab.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along
 * with this library; if not, write to Monty Program Ab info@montyprogram.com.
 *
 * This particular MariaDB Client for Java file is work
 * derived from a Drizzle-JDBC. Drizzle-JDBC file which is covered by subject to
 * the following copyright and notice provisions:
 *
 * Copyright (c) 2009-2011, Marcus Eriksson
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * Redistributions of source code must retain the above copyright notice, this list
 * of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice, this
 * list of conditions and the following disclaimer in the documentation and/or
 * other materials provided with the distribution.
 *
 * Neither the name of the driver nor the names of its contributors may not be
 * used to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS  AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
 * OF SUCH DAMAGE.
 *
 */

package org.mariadb.jdbc;

import org.junit.Assume;
import org.junit.Test;

import java.sql.*;

import static org.junit.Assert.*;

public class TimeoutTest extends BaseTest {

    private static int selectValue(Connection conn, int value)
            throws SQLException {
        try (Statement stmt = conn.createStatement()) {
            try (ResultSet rs = stmt.executeQuery("select " + value)) {
                if (rs.next()) {
                    return rs.getInt(1);
                } else {
                    return value;
                }
            }
        }
    }

    /**
     * Conj-79.
     */
    @Test
    public void resultSetAfterSocketTimeoutTest() {
        //appveyor vm are very slow, cannot compare time
        Assume.assumeTrue(System.getenv("APPVEYOR") == null);

        Assume.assumeFalse(sharedIsAurora());
        int went = 0;
        for (int j = 0; j < 100; j++) {
            try (Connection connection = setConnection("&connectTimeout=5&socketTimeout=1")) {
                boolean bugReproduced = false;

                int repetition = 1000;
                for (int i = 0; i < repetition && !connection.isClosed(); i++) {
                    try {
                        int v1 = selectValue(connection, 1);
                        int v2 = selectValue(connection, 2);
                        if (v1 != 1 || v2 != 2) {
                            bugReproduced = true;
                            break;
                        }
                        went++;
                    } catch (SQLNonTransientConnectionException e) {
                        //error due to socketTimeout
                    } catch (SQLException e) {
                        e.printStackTrace();
                    }
                }
                assertFalse(bugReproduced); // either Exception or fine
            } catch (SQLException e) {
                //SQLNonTransientConnectionException error
            }
        }
        assertTrue(went > 0);
    }

    /**
     * Conj-79.
     *
     * @throws SQLException exception
     */
    @Test
    public void socketTimeoutTest() throws SQLException {
        Assume.assumeFalse(sharedIsAurora());
        // set a short connection timeout
        try (Connection connection = setConnection("&connectTimeout=1000&socketTimeout=1000")) {
            PreparedStatement ps = connection.prepareStatement("SELECT 1");
            ResultSet rs = ps.executeQuery();
            assertTrue(rs.next());
            logInfo(rs. getString(1));

            // wait for the connection to time out
            ps = connection.prepareStatement("SELECT sleep(2)");

            // a timeout should occur here
            try {
                ps.executeQuery();
                fail();
            } catch (SQLException e) {
                // check that it's a timeout that occurs
            }

            try {
                ps = connection.prepareStatement("SELECT 2");
                ps.execute();
                fail("Connection must have thrown error");
            } catch (SQLException e) {
                //normal exception
            }

            // the connection should  be closed
            assertTrue(connection.isClosed());
        }
    }

    @Test
    public void waitTimeoutStatementTest() throws SQLException, InterruptedException {
        Assume.assumeFalse(sharedIsAurora());
        try (Connection connection = setConnection()) {
            try (Statement statement = connection.createStatement()) {
                statement.execute("set session wait_timeout=1");
                Thread.sleep(2000); // Wait for the server to kill the connection

                logInfo(connection.toString());

                // here a SQLNonTransientConnectionException is expected
                // "Could not read resultset: unexpected end of stream, ..."
                try {
                    statement.execute("SELECT 1");
                    fail("Connection must have thrown error");
                } catch (SQLException e) {
                    //normal exception
                }
            }
        }
    }

    @Test
    public void waitTimeoutResultSetTest() throws SQLException, InterruptedException {
        Assume.assumeFalse(sharedIsAurora());
        try (Connection connection = setConnection()) {
            Statement stmt = connection.createStatement();
            ResultSet rs = stmt.executeQuery("SELECT 1");

            assertTrue(rs.next());

            stmt.execute("set session wait_timeout=1");
            Thread.sleep(3000); // Wait for the server to kill the connection

            // here a SQLNonTransientConnectionException is expected
            // "Could not read resultset: unexpected end of stream, ..."
            try {
                rs = stmt.executeQuery("SELECT 2");
                assertTrue(rs.next());
                fail("Connection must have thrown error");
            } catch (SQLException e) {
                //normal exception
            }
        }
    }

}