/*
* 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.sharding.example.transaction;
import com.dangdang.ddframe.rdb.sharding.api.ShardingDataSourceFactory;
import com.dangdang.ddframe.rdb.sharding.api.rule.BindingTableRule;
import com.dangdang.ddframe.rdb.sharding.api.rule.DataSourceRule;
import com.dangdang.ddframe.rdb.sharding.api.rule.ShardingRule;
import com.dangdang.ddframe.rdb.sharding.api.rule.TableRule;
import com.dangdang.ddframe.rdb.sharding.api.strategy.database.DatabaseShardingStrategy;
import com.dangdang.ddframe.rdb.sharding.api.strategy.table.TableShardingStrategy;
import com.dangdang.ddframe.rdb.sharding.example.transaction.algorithm.ModuloDatabaseShardingAlgorithm;
import com.dangdang.ddframe.rdb.sharding.example.transaction.algorithm.ModuloTableShardingAlgorithm;
import com.dangdang.ddframe.rdb.transaction.soft.api.SoftTransactionManager;
import com.dangdang.ddframe.rdb.transaction.soft.api.config.NestedBestEffortsDeliveryJobConfiguration;
import com.dangdang.ddframe.rdb.transaction.soft.api.config.SoftTransactionConfiguration;
import com.dangdang.ddframe.rdb.transaction.soft.bed.BEDSoftTransaction;
import com.dangdang.ddframe.rdb.transaction.soft.constants.SoftTransactionType;
import com.google.common.base.Optional;
import org.apache.commons.dbcp.BasicDataSource;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
// CHECKSTYLE:OFF
public final class Main {
private static boolean useNestedJob = true;
public static void main(final String[] args) throws SQLException {
// CHECKSTYLE:ON
DataSource dataSource = getShardingDataSource();
updateFailure(dataSource);
}
private static void updateFailure(final DataSource dataSource) throws SQLException {
String sql1 = "UPDATE t_order SET status='UPDATE_1' WHERE user_id=10 AND order_id=1000";
String sql2 = "UPDATE t_order SET not_existed_column=1 WHERE user_id=1 AND order_id=?";
String sql3 = "UPDATE t_order SET status='UPDATE_2' WHERE user_id=10 AND order_id=1000";
SoftTransactionManager transactionManager = new SoftTransactionManager(getSoftTransactionConfiguration(dataSource));
transactionManager.init();
BEDSoftTransaction transaction = (BEDSoftTransaction) transactionManager.getTransaction(SoftTransactionType.BestEffortsDelivery);
Connection conn = null;
try {
conn = dataSource.getConnection();
transaction.begin(conn);
PreparedStatement preparedStatement1 = conn.prepareStatement(sql1);
PreparedStatement preparedStatement2 = conn.prepareStatement(sql2);
preparedStatement2.setObject(1, 1000);
PreparedStatement preparedStatement3 = conn.prepareStatement(sql3);
preparedStatement1.executeUpdate();
preparedStatement2.executeUpdate();
preparedStatement3.executeUpdate();
} finally {
transaction.end();
if (conn != null) {
conn.close();
}
}
}
private static DataSource getShardingDataSource() {
DataSourceRule dataSourceRule = new DataSourceRule(createDataSourceMap());
TableRule orderTableRule = TableRule.builder("t_order").actualTables(Arrays.asList("t_order_0", "t_order_1")).dataSourceRule(dataSourceRule).build();
TableRule orderItemTableRule = TableRule.builder("t_order_item").actualTables(Arrays.asList("t_order_item_0", "t_order_item_1")).dataSourceRule(dataSourceRule).build();
ShardingRule shardingRule = ShardingRule.builder().dataSourceRule(dataSourceRule).tableRules(Arrays.asList(orderTableRule, orderItemTableRule))
.bindingTableRules(Collections.singletonList(new BindingTableRule(Arrays.asList(orderTableRule, orderItemTableRule))))
.databaseShardingStrategy(new DatabaseShardingStrategy("user_id", new ModuloDatabaseShardingAlgorithm()))
.tableShardingStrategy(new TableShardingStrategy("order_id", new ModuloTableShardingAlgorithm())).build();
return ShardingDataSourceFactory.createDataSource(shardingRule);
}
private static Map<String, DataSource> createDataSourceMap() {
Map<String, DataSource> result = new HashMap<>(2);
result.put("ds_0", createDataSource("ds_0"));
result.put("ds_1", createDataSource("ds_1"));
return result;
}
private static DataSource createDataSource(final String dataSourceName) {
BasicDataSource result = new BasicDataSource();
result.setDriverClassName(com.mysql.jdbc.Driver.class.getName());
result.setUrl(String.format("jdbc:mysql://localhost:3306/%s", dataSourceName));
result.setUsername("root");
result.setPassword("");
return result;
}
private static DataSource createTransactionLogDataSource() {
BasicDataSource result = new BasicDataSource();
result.setDriverClassName(com.mysql.jdbc.Driver.class.getName());
result.setUrl("jdbc:mysql://localhost:3306/trans_log");
result.setUsername("root");
result.setPassword("");
return result;
}
private static SoftTransactionConfiguration getSoftTransactionConfiguration(final DataSource dataSource) {
SoftTransactionConfiguration result = new SoftTransactionConfiguration(dataSource);
if (useNestedJob) {
result.setBestEffortsDeliveryJobConfiguration(Optional.of(new NestedBestEffortsDeliveryJobConfiguration()));
}
result.setTransactionLogDataSource(createTransactionLogDataSource());
return result;
}
}