ShardingMasterSlaveForStatementWithDMLTest.java

/*
 * Copyright 1999-2015 dangdang.com.
 * <p>
 * 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.
 * </p>
 */

package com.dangdang.ddframe.rdb.integrate.masterslave.statement;

import com.dangdang.ddframe.rdb.integrate.masterslave.AbstractShardingMasterSlaveDBUnitTest;
import com.dangdang.ddframe.rdb.sharding.jdbc.ShardingDataSource;
import com.dangdang.ddframe.rdb.sharding.parser.result.router.SQLStatementType;
import org.dbunit.DatabaseUnitException;
import org.junit.Before;
import org.junit.Test;

import java.sql.Connection;
import java.sql.SQLException;
import java.sql.Statement;

import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertThat;
import static org.junit.Assert.assertTrue;

public final class ShardingMasterSlaveForStatementWithDMLTest extends AbstractShardingMasterSlaveDBUnitTest {
    
    private ShardingDataSource shardingDataSource;
    
    @Before
    public void init() throws SQLException {
        shardingDataSource = getShardingDataSource();
    }
    
    @Test
    public void assertUpdateWithoutShardingValue() throws SQLException, DatabaseUnitException {
        assertSelectBeforeUpdate();
        String sql = "UPDATE `t_order` SET `status` = '%s' WHERE `status` = '%s'";
        try (Connection connection = getShardingDataSource().getConnection()) {
            Statement stmt = connection.createStatement();
            assertThat(stmt.executeUpdate(String.format(sql, "updated", "init_master")), is(100));
        }
        assertDataSet("update", "updated");
        assertSelectAfterUpdate();
    }
    
    private void assertSelectBeforeUpdate() throws SQLException, DatabaseUnitException {
        String sql = "SELECT * FROM `t_order` WHERE `status` = '%s'";
        try (Connection connection = getShardingDataSource().getConnection()) {
            Statement stmt = connection.createStatement();
            assertFalse(stmt.executeQuery(String.format(sql, "updated")).next());
        }
    }
    
    private void assertSelectAfterUpdate() throws SQLException, DatabaseUnitException {
        String sql = "SELECT * FROM `t_order` WHERE `status` = '%s'";
        try (Connection connection = getShardingDataSource().getConnection()) {
            Statement stmt = connection.createStatement();
            assertTrue(stmt.executeQuery(String.format(sql, "updated")).next());
        }
    }
    
    @Test
    public void assertDeleteWithoutShardingValue() throws SQLException, DatabaseUnitException {
        String sql = "DELETE `t_order` WHERE `status` = '%s'";
        try (Connection connection = getShardingDataSource().getConnection()) {
            Statement stmt = connection.createStatement();
            assertThat(stmt.executeUpdate(String.format(sql, "init_master")), is(100));
        }
        assertDataSet("delete", "init");
    }
    
    protected void assertDataSet(final String expectedDataSetPattern, final String status) throws SQLException, DatabaseUnitException {
        for (int i = 0; i < 10; i++) {
            for (int j = 0; j < 10; j++) {
                assertDataSet(String.format("integrate/dataset/masterslave/expect/%s/master_%s.xml", expectedDataSetPattern, i),
                        shardingDataSource.getConnection().getConnection(String.format("ms_%s", i), SQLStatementType.INSERT),
                        String.format("t_order_%s", j), String.format("SELECT * FROM `t_order_%s` WHERE `status`=?", j), status);
            }
        }
    }
}