| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| package org.apache.beam.sdk.io.common; |
| |
| import java.sql.Connection; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.Optional; |
| import javax.sql.DataSource; |
| import org.postgresql.ds.PGSimpleDataSource; |
| |
| /** This class contains helper methods to ease database usage in tests. */ |
| public class DatabaseTestHelper { |
| |
| public static PGSimpleDataSource getPostgresDataSource(PostgresIOTestPipelineOptions options) { |
| PGSimpleDataSource dataSource = new PGSimpleDataSource(); |
| dataSource.setDatabaseName(options.getPostgresDatabaseName()); |
| dataSource.setServerName(options.getPostgresServerName()); |
| dataSource.setPortNumber(options.getPostgresPort()); |
| dataSource.setUser(options.getPostgresUsername()); |
| dataSource.setPassword(options.getPostgresPassword()); |
| dataSource.setSsl(options.getPostgresSsl()); |
| return dataSource; |
| } |
| |
| public static void createTable(DataSource dataSource, String tableName) throws SQLException { |
| try (Connection connection = dataSource.getConnection()) { |
| try (Statement statement = connection.createStatement()) { |
| statement.execute(String.format("create table %s (id INT, name VARCHAR(500))", tableName)); |
| } |
| } |
| } |
| |
| public static void createTableForRowWithSchema(DataSource dataSource, String tableName) |
| throws SQLException { |
| try (Connection connection = dataSource.getConnection()) { |
| try (Statement statement = connection.createStatement()) { |
| statement.execute(String.format("create table %s (name VARCHAR(500), id INT)", tableName)); |
| } |
| } |
| } |
| |
| public static void deleteTable(DataSource dataSource, String tableName) throws SQLException { |
| if (tableName != null) { |
| try (Connection connection = dataSource.getConnection(); |
| Statement statement = connection.createStatement()) { |
| statement.executeUpdate(String.format("drop table %s", tableName)); |
| } |
| } |
| } |
| |
| public static String getTestTableName(String testIdentifier) { |
| SimpleDateFormat formatter = new SimpleDateFormat(); |
| formatter.applyPattern("yyyy_MM_dd_HH_mm_ss_S"); |
| return String.format("BEAMTEST_%s_%s", testIdentifier, formatter.format(new Date())); |
| } |
| |
| public static String getPostgresDBUrl(PostgresIOTestPipelineOptions options) { |
| return String.format( |
| "jdbc:postgresql://%s:%s/%s", |
| options.getPostgresServerName(), |
| options.getPostgresPort(), |
| options.getPostgresDatabaseName()); |
| } |
| |
| public static Optional<Long> getPostgresTableSize(DataSource dataSource, String tableName) { |
| try (Connection connection = dataSource.getConnection()) { |
| try (Statement statement = connection.createStatement()) { |
| ResultSet resultSet = |
| statement.executeQuery(String.format("select pg_relation_size('%s')", tableName)); |
| if (resultSet.next()) { |
| return Optional.of(resultSet.getLong(1)); |
| } |
| } |
| } catch (SQLException e) { |
| return Optional.empty(); |
| } |
| return Optional.empty(); |
| } |
| |
| public static void createTableWithStatement(DataSource dataSource, String stmt) |
| throws SQLException { |
| try (Connection connection = dataSource.getConnection()) { |
| try (Statement statement = connection.createStatement()) { |
| statement.execute(stmt); |
| } |
| } |
| } |
| } |