| /** |
| * 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.apex.examples.JdbcIngest; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.sql.Connection; |
| import java.sql.DriverManager; |
| import java.sql.PreparedStatement; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import java.util.Collection; |
| |
| import javax.validation.ConstraintViolationException; |
| |
| import org.junit.AfterClass; |
| import org.junit.Assert; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.hadoop.conf.Configuration; |
| |
| import com.datatorrent.api.LocalMode; |
| |
| /** |
| * Application test for {@link JdbcHDFSApp} |
| */ |
| public class JdbcInputAppTest |
| { |
| private static final String DB_DRIVER = "org.hsqldb.jdbcDriver"; |
| private static final String URL = "jdbc:hsqldb:mem:test;sql.syntax_mys=true"; |
| private static final String TABLE_NAME = "test_event_table"; |
| private static final String FILE_NAME = "/tmp/jdbcApp"; |
| |
| @BeforeClass |
| public static void setup() |
| { |
| try { |
| cleanup(); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| try { |
| Class.forName(DB_DRIVER).newInstance(); |
| |
| Connection con = DriverManager.getConnection(URL); |
| Statement stmt = con.createStatement(); |
| |
| String createTable = "CREATE TABLE IF NOT EXISTS " + TABLE_NAME |
| + " (ACCOUNT_NO INTEGER, NAME VARCHAR(255),AMOUNT INTEGER)"; |
| stmt.executeUpdate(createTable); |
| cleanTable(); |
| insertEventsInTable(10, 0); |
| } catch (Exception e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @AfterClass |
| public static void cleanup() |
| { |
| try { |
| FileUtils.deleteDirectory(new File(FILE_NAME)); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| public static void cleanTable() |
| { |
| try { |
| Connection con = DriverManager.getConnection(URL); |
| Statement stmt = con.createStatement(); |
| String cleanTable = "delete from " + TABLE_NAME; |
| stmt.executeUpdate(cleanTable); |
| } catch (SQLException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| public static void insertEventsInTable(int numEvents, int offset) |
| { |
| try { |
| Connection con = DriverManager.getConnection(URL); |
| String insert = "insert into " + TABLE_NAME + " values (?,?,?)"; |
| PreparedStatement stmt = con.prepareStatement(insert); |
| for (int i = 0; i < numEvents; i++, offset++) { |
| stmt.setInt(1, offset); |
| stmt.setString(2, "Account_Holder-" + offset); |
| stmt.setInt(3, (offset * 1000)); |
| stmt.executeUpdate(); |
| } |
| } catch (SQLException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| @Test |
| public void testApplication() throws Exception |
| { |
| try { |
| LocalMode lma = LocalMode.newInstance(); |
| Configuration conf = new Configuration(false); |
| conf.addResource(this.getClass().getResourceAsStream("/META-INF/properties-SimpleJdbcToHDFSApp.xml")); |
| lma.prepareDAG(new JdbcHDFSApp(), conf); |
| LocalMode.Controller lc = lma.getController(); |
| lc.runAsync(); |
| |
| // wait for output files to roll |
| Thread.sleep(5000); |
| |
| String[] extensions = { "dat.0", "tmp" }; |
| Collection<File> list = FileUtils.listFiles(new File(FILE_NAME), extensions, false); |
| Assert.assertEquals("Records in file", 10, FileUtils.readLines(list.iterator().next()).size()); |
| |
| } catch (ConstraintViolationException e) { |
| Assert.fail("constraint violations: " + e.getConstraintViolations()); |
| } |
| } |
| } |