forked from apache/beam
/
JdbcIT.java
89 lines (78 loc) · 3.17 KB
/
JdbcIT.java
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/*
* 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.extensions.sql.jdbc;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.net.URL;
import java.net.URLClassLoader;
import java.sql.Connection;
import java.sql.Driver;
import java.sql.Statement;
import java.util.Properties;
import java.util.ServiceLoader;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;
/** Test for JDBC via {@link java.net.URLClassLoader}. */
public class JdbcIT {
private static final String DRIVER_URL = "jdbc:beam:";
@Rule public TemporaryFolder folder = new TemporaryFolder();
private Connection getConnection() throws Exception {
URL jdbcUrl = new File(System.getProperty("driver.jar")).toURI().toURL();
ClassLoader classLoader =
new URLClassLoader(new URL[] {jdbcUrl}, ClassLoader.getSystemClassLoader());
ServiceLoader<Driver> loader = ServiceLoader.load(Driver.class, classLoader);
Driver driver = loader.iterator().next();
return driver.connect(DRIVER_URL, new Properties());
}
@Test
public void classLoader_simple() throws Exception {
Connection connection = getConnection();
Statement statement = connection.createStatement();
// SELECT 1 is a special case and does not reach the parser
assertTrue(statement.execute("SELECT 1"));
}
@Test
public void classLoader_parse() throws Exception {
Connection connection = getConnection();
Statement statement = connection.createStatement();
assertTrue(statement.execute("SELECT 'beam'"));
}
@Test
public void classLoader_ddl() throws Exception {
Connection connection = getConnection();
Statement statement = connection.createStatement();
assertEquals(0, statement.executeUpdate("CREATE TABLE test (id INTEGER) TYPE 'text'"));
assertEquals(0, statement.executeUpdate("DROP TABLE test"));
}
@Test
public void classLoader_readFile() throws Exception {
File simpleTable = folder.newFile();
Connection connection = getConnection();
Statement statement = connection.createStatement();
assertEquals(
0,
statement.executeUpdate(
"CREATE TABLE test (id INTEGER) TYPE 'text' LOCATION '"
+ simpleTable.getAbsolutePath()
+ "'"));
assertTrue(statement.execute("SELECT * FROM test"));
assertEquals(0, statement.executeUpdate("DROP TABLE test"));
}
}