AllowMasterDownTest.java

/*
 *
 * MariaDB Client for Java
 *
 * Copyright (c) 2012-2014 Monty Program Ab.
 * Copyright (c) 2015-2018 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.failover;

import org.junit.Assert;
import org.junit.Assume;
import org.junit.Before;
import org.junit.Test;
import org.mariadb.jdbc.BaseTest;
import org.mariadb.jdbc.MariaDbConnection;

import java.sql.*;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

public class AllowMasterDownTest extends BaseTest {

    private String masterDownUrl;

    /**
     * Initialisation.
     */
    @Before
    public void init() {
        Assume.assumeTrue(testSingleHost);
        if (testSingleHost) {
            masterDownUrl = "jdbc:mariadb:replication//" + hostname + ":9999"
                    + "," + hostname + ((port == 0) ? "" : ":" + port)
                    + "/" + database + "?user=" + username
                    + ((password != null) ? "&password=" + password : "")
                    + "&retriesAllDown=10&allowMasterDownConnection";
        }
    }

    @Test
    public void masterDownReadOnlyAvailable() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            Assert.assertFalse(connection.isReadOnly());
            connection.isValid(0);
            connection.setReadOnly(true);
            PreparedStatement preparedStatement = connection.prepareStatement("SELECT 1");
            preparedStatement.executeQuery();
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownThrowError() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            Statement statement = connection.createStatement();
            try {
                statement.executeQuery("SELECT 1");
                Assert.fail("Must have thrown a connectionException");
            } catch (SQLException sqle) {
                Assert.assertTrue(sqle instanceof SQLNonTransientConnectionException);
            }
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownAutoCommit() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            connection.getAutoCommit();
        } catch (SQLException sqle) {
            Assert.assertTrue(sqle instanceof SQLNonTransientConnectionException);
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownGetMeta() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            createTable("checkMetaData",
                    "xx tinyint(1) primary key auto_increment, yy year(4), zz bit, uu smallint");
            DatabaseMetaData meta = connection.getMetaData();
            meta.getColumns(null, null, "checkMetaData", null);
            Assert.fail("Must have thrown a connectionException");
        } catch (SQLException sqle) {
            Assert.assertTrue(sqle instanceof SQLNonTransientConnectionException);
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownGetMetaRead() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            createTable("checkMetaData",
                    "xx tinyint(1) primary key auto_increment, yy year(4), zz bit, uu smallint");
            connection.setReadOnly(true);
            DatabaseMetaData meta = connection.getMetaData();
            ResultSet rs = meta.getColumns(null, null, "checkMetaData", null);
            assertTrue(rs.next());
            assertEquals("BIT", rs.getString(6));
            assertTrue(rs.next());
            assertEquals("YEAR", rs.getString(6));
            assertEquals(null, rs.getString(7)); // column size
            assertEquals(null, rs.getString(9)); // decimal digit
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownCreateStatement() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            Statement stmt = connection.createStatement();
            try {
                stmt.executeQuery("SELECT 1");
            } catch (SQLException sqle) {
                Assert.assertTrue(sqle instanceof SQLNonTransientConnectionException);
            }
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownCreatePrepareStatement() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            PreparedStatement prepare = connection.prepareStatement("SELECT ?");
            prepare.setString(1, "1");
            try {
                prepare.executeQuery();
            } catch (SQLException sqle) {
                Assert.assertTrue(sqle instanceof SQLNonTransientConnectionException);
            }
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownReadProperties() throws SQLException {
        MariaDbConnection connection = null;
        try {
            connection = (MariaDbConnection) DriverManager.getConnection(masterDownUrl);
            String db = connection.getCatalog();
            Assert.assertFalse(connection.isReadOnly());
            Assert.assertFalse(connection.isClosed());
            connection.getNetworkTimeout();
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownTransactionIsolation() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            try {
                connection.getTransactionIsolation();
            } catch (SQLException sqle) {
                Assert.assertTrue(sqle instanceof SQLNonTransientConnectionException);
            }
        } finally {
            if (connection != null) connection.close();
        }
    }

    @Test
    public void masterDownRollback() throws SQLException {
        Connection connection = null;
        try {
            connection = DriverManager.getConnection(masterDownUrl);
            try {
                connection.rollback();
            } catch (SQLException sqle) {
                Assert.assertTrue(sqle instanceof SQLNonTransientConnectionException);
            }
        } finally {
            if (connection != null) connection.close();
        }
    }

}