Java tutorial
/* * 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.transaction.soft.base; import com.dangdang.ddframe.rdb.sharding.jdbc.ShardingDataSource; 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.parser.result.router.SQLStatementType; import com.google.common.collect.Lists; import lombok.AccessLevel; import lombok.Getter; import org.apache.commons.dbcp.BasicDataSource; import org.junit.Before; import javax.sql.DataSource; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.SQLException; import java.util.HashMap; import java.util.Map; @Getter(AccessLevel.PROTECTED) public abstract class AbstractSoftTransactionIntegrationTest { private ShardingDataSource shardingDataSource; private DataSource transactionDataSource; @Before public void setup() throws SQLException { prepareEnv(); } private void prepareEnv() throws SQLException { DataSourceRule dataSourceRule = new DataSourceRule(createDataSourceMap()); TableRule tableRule = TableRule.builder("transaction_test").dataSourceRule(dataSourceRule).build(); ShardingRule shardingRule = ShardingRule.builder().dataSourceRule(dataSourceRule) .tableRules(Lists.newArrayList(tableRule)).build(); shardingDataSource = new ShardingDataSource(shardingRule); createTable(shardingDataSource); transactionDataSource = createTransactionLogDataSource(); } private Map<String, DataSource> createDataSourceMap() { Map<String, DataSource> result = new HashMap<>(1); result.put("db_trans", createBizDataSource()); return result; } private DataSource createBizDataSource() { return createDataSource("db_trans"); } private DataSource createTransactionLogDataSource() { return createDataSource("trans_log"); } private DataSource createDataSource(final String dataSourceName) { BasicDataSource result = new BasicDataSource(); result.setDriverClassName(org.h2.Driver.class.getName()); result.setUrl("jdbc:h2:mem:" + dataSourceName); result.setUsername("sa"); result.setPassword(""); return result; } private void createTable(final ShardingDataSource shardingDataSource) throws SQLException { String dbSchema = "CREATE TABLE IF NOT EXISTS `transaction_test` (" + "`id` int NOT NULL, " + "PRIMARY KEY (`id`));"; try (Connection conn = shardingDataSource.getConnection().getConnection("db_trans", SQLStatementType.SELECT); PreparedStatement preparedStatement = conn.prepareStatement(dbSchema)) { preparedStatement.executeUpdate(); } catch (final SQLException e) { e.printStackTrace(); } } }