Java tutorial
/* * Copyright 2017 Evgeniy Khyst. * * 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. */ package h2backup; import java.io.IOException; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.Paths; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.SQLException; import java.util.UUID; import org.apache.commons.io.FileUtils; import org.h2.jdbcx.JdbcDataSource; import org.junit.After; import org.junit.Before; /** * * @author evgeniy */ public abstract class H2BackupTestBase { protected static final String BUILD_DIRECTORY = System.getProperty("buildDirectory"); protected JdbcDataSource dataSource; protected Path workDirectory; @Before public void baseSetUp() throws IOException, SQLException { workDirectory = Paths.get(BUILD_DIRECTORY, "h2-backup", UUID.randomUUID().toString()); if (!Files.exists(workDirectory)) { Files.createDirectories(workDirectory); } dataSource = new JdbcDataSource(); dataSource.setURL("jdbc:h2:" + workDirectory + "/testdb"); dataSource.setUser("sa"); dataSource.setPassword("sa"); createTestTable(); } @After public void baseTearDown() throws IOException { if (Files.exists(workDirectory)) { FileUtils.deleteDirectory(workDirectory.toFile()); } } protected Connection getConnection() throws SQLException { return dataSource.getConnection("sa", "sa"); } protected void createTestTable() throws SQLException { try (Connection conn = getConnection()) { PreparedStatement ps = conn.prepareStatement( "CREATE TABLE test_tbl ( id IDENTITY PRIMARY KEY, description VARCHAR(255) )"); ps.execute(); } } protected void insertRecordIntoTestTable(String description) throws SQLException { try (Connection conn = getConnection()) { PreparedStatement ps = conn.prepareStatement("INSERT INTO test_tbl (description) VALUES (?)"); ps.setString(1, description); ps.execute(); } } }