| /** |
| * 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.sqoop.manager.sqlserver; |
| |
| import java.io.IOException; |
| import java.sql.Connection; |
| import java.sql.PreparedStatement; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.commons.cli.ParseException; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.fs.FileStatus; |
| import org.apache.hadoop.fs.FileSystem; |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.io.IOUtils; |
| import org.apache.hadoop.io.SequenceFile; |
| import org.apache.hadoop.mapred.Utils; |
| import org.apache.hadoop.util.ReflectionUtils; |
| import org.apache.hadoop.util.StringUtils; |
| |
| import com.cloudera.sqoop.SqoopOptions; |
| import com.cloudera.sqoop.SqoopOptions.InvalidOptionsException; |
| import com.cloudera.sqoop.orm.CompilationManager; |
| import com.cloudera.sqoop.testutil.CommonArgs; |
| import com.cloudera.sqoop.testutil.ImportJobTestCase; |
| import com.cloudera.sqoop.testutil.SeqFileReader; |
| import com.cloudera.sqoop.tool.ImportTool; |
| import com.cloudera.sqoop.tool.SqoopTool; |
| import com.cloudera.sqoop.util.ClassLoaderStack; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| /** |
| * Test multiple mapper splits in SQL Server. |
| * |
| * This uses JDBC to import data from an SQLServer database to HDFS. |
| * |
| * Since this requires an SQLServer installation, |
| * this class is named in such a way that Sqoop's default QA process does |
| * not run it. You need to run this manually with |
| * -Dtestcase=SQLServerMultiMapsTest or -Dthirdparty=true. |
| * |
| * You need to put SQL Server JDBC driver library (sqljdbc4.jar) in a location |
| * where Sqoop will be able to access it (since this library cannot be checked |
| * into Apache's tree for licensing reasons) and set it's path through -Dsqoop.thirdparty.lib.dir. |
| * |
| * To set up your test environment: |
| * Install SQL Server Express 2012 |
| * Create a database SQOOPTEST |
| * Create a login SQOOPUSER with password PASSWORD and grant all |
| * access for SQOOPTEST to SQOOPUSER. |
| * Set these through -Dsqoop.test.sqlserver.connectstring.host_url, -Dsqoop.test.sqlserver.database and |
| * -Dms.sqlserver.password |
| */ |
| public class SQLServerMultiMapsTest extends ImportJobTestCase { |
| |
| @Before |
| public void setUp() { |
| super.setUp(); |
| MSSQLTestUtils utils = new MSSQLTestUtils(); |
| try { |
| utils.createTableFromSQL(MSSQLTestUtils.CREATE_TALBE_LINEITEM); |
| utils.populateLineItem(); |
| } catch (SQLException e) { |
| LOG.error("Setup fail with SQLException: " + StringUtils.stringifyException(e)); |
| fail("Setup fail with SQLException: " + e.toString()); |
| } |
| |
| } |
| |
| @After |
| public void tearDown() { |
| super.tearDown(); |
| MSSQLTestUtils utils = new MSSQLTestUtils(); |
| try { |
| utils.dropTableIfExists("TPCH1M_LINEITEM"); |
| } catch (SQLException e) { |
| LOG.error("TeatDown fail with SQLException: " + StringUtils.stringifyException(e)); |
| fail("TearDown fail with SQLException: " + e.toString()); |
| } |
| } |
| |
| /** |
| * Create the argv to pass to Sqoop. |
| * |
| * @return the argv as an array of strings. |
| */ |
| protected String[] getArgv(boolean includeHadoopFlags, String[] colNames, |
| String splitByCol) { |
| String columnsString = ""; |
| for (String col : colNames) { |
| columnsString += col + ","; |
| } |
| |
| ArrayList<String> args = new ArrayList<String>(); |
| |
| if (includeHadoopFlags) { |
| CommonArgs.addHadoopFlags(args); |
| } |
| String username = MSSQLTestUtils.getDBUserName(); |
| String password = MSSQLTestUtils.getDBPassWord(); |
| |
| args.add("--table"); |
| args.add(getTableName()); |
| args.add("--columns"); |
| args.add(columnsString); |
| args.add("--split-by"); |
| args.add(splitByCol); |
| args.add("--warehouse-dir"); |
| args.add(getWarehouseDir()); |
| args.add("--connect"); |
| args.add(getConnectString()); |
| args.add("--username"); |
| args.add(username); |
| args.add("--password"); |
| args.add(password); |
| args.add("--as-sequencefile"); |
| args.add("--num-mappers"); |
| args.add("2"); |
| |
| return args.toArray(new String[0]); |
| } |
| |
| // this test just uses the two int table. |
| |
| /** @return a list of Path objects for each data file */ |
| protected List<Path> getDataFilePaths() throws IOException { |
| List<Path> paths = new ArrayList<Path>(); |
| Configuration conf = new Configuration(); |
| conf.set("fs.default.name", "file:///"); |
| FileSystem fs = FileSystem.get(conf); |
| |
| FileStatus[] stats = fs.listStatus(getTablePath(), |
| new Utils.OutputFileUtils.OutputFilesFilter()); |
| |
| for (FileStatus stat : stats) { |
| paths.add(stat.getPath()); |
| } |
| |
| return paths; |
| } |
| |
| /** |
| * Given a comma-delimited list of integers, grab and parse the first int. |
| * |
| * @param str |
| * a comma-delimited list of values, the first of which is an |
| * int. |
| * @return the first field in the string, cast to int |
| */ |
| private int getFirstInt(String str) { |
| String[] parts = str.split(","); |
| return Integer.parseInt(parts[0]); |
| } |
| |
| public void runMultiMapTest(String splitByCol, int expectedSum) |
| throws IOException { |
| |
| String[] columns = MSSQLTestUtils.getColumns(); |
| ClassLoader prevClassLoader = null; |
| SequenceFile.Reader reader = null; |
| |
| String[] argv = getArgv(true, columns, splitByCol); |
| runImport(argv); |
| try { |
| ImportTool importTool = new ImportTool(); |
| SqoopOptions opts = importTool.parseArguments(getArgv(false, |
| columns, splitByCol), null, null, true); |
| String username = MSSQLTestUtils.getDBUserName(); |
| String password = MSSQLTestUtils.getDBPassWord(); |
| opts.setUsername(username); |
| opts.setPassword(password); |
| |
| CompilationManager compileMgr = new CompilationManager(opts); |
| String jarFileName = compileMgr.getJarFilename(); |
| |
| prevClassLoader = ClassLoaderStack.addJarFile(jarFileName, |
| getTableName()); |
| |
| List<Path> paths = getDataFilePaths(); |
| Configuration conf = new Configuration(); |
| int curSum = 0; |
| |
| // We expect multiple files. We need to open all the files and sum |
| // up the |
| // first column across all of them. |
| for (Path p : paths) { |
| reader = SeqFileReader.getSeqFileReader(p.toString()); |
| |
| // here we can actually instantiate (k, v) pairs. |
| Object key = ReflectionUtils.newInstance(reader.getKeyClass(), |
| conf); |
| Object val = ReflectionUtils.newInstance( |
| reader.getValueClass(), conf); |
| |
| // We know that these values are two ints separated by a ',' |
| // character. Since this is all dynamic, though, we don't want |
| // to |
| // actually link against the class and use its methods. So we |
| // just |
| // parse this back into int fields manually. Sum them up and |
| // ensure |
| // that we get the expected total for the first column, to |
| // verify that |
| // we got all the results from the db into the file. |
| |
| // now sum up everything in the file. |
| while (reader.next(key) != null) { |
| reader.getCurrentValue(val); |
| curSum += getFirstInt(val.toString()); |
| } |
| |
| IOUtils.closeStream(reader); |
| reader = null; |
| } |
| |
| assertEquals("Total sum of first db column mismatch", expectedSum, |
| curSum); |
| } catch (InvalidOptionsException ioe) { |
| LOG.error(StringUtils.stringifyException(ioe)); |
| fail(ioe.toString()); |
| } catch (ParseException pe) { |
| LOG.error(StringUtils.stringifyException(pe)); |
| fail(pe.toString()); |
| } finally { |
| IOUtils.closeStream(reader); |
| |
| if (null != prevClassLoader) { |
| ClassLoaderStack.setCurrentClassLoader(prevClassLoader); |
| } |
| } |
| } |
| |
| @Test |
| public void testSplitByFirstCol() throws IOException { |
| runMultiMapTest("L_ORDERKEY", 10); |
| } |
| |
| protected boolean useHsqldbTestServer() { |
| return false; |
| } |
| |
| protected String getConnectString() { |
| return MSSQLTestUtils.getDBConnectString(); |
| } |
| |
| /** |
| * Drop a table if it already exists in the database. |
| * |
| * @param table |
| * the name of the table to drop. |
| * @throws SQLException |
| * if something goes wrong. |
| */ |
| protected void dropTableIfExists(String table) throws SQLException { |
| Connection conn = getManager().getConnection(); |
| String sqlStmt = "IF OBJECT_ID('" + table |
| + "') IS NOT NULL DROP TABLE " + table; |
| PreparedStatement statement = conn.prepareStatement(sqlStmt, |
| ResultSet.TYPE_FORWARD_ONLY, ResultSet.CONCUR_READ_ONLY); |
| try { |
| statement.executeUpdate(); |
| conn.commit(); |
| } finally { |
| statement.close(); |
| } |
| } |
| |
| protected SqoopOptions getSqoopOptions(Configuration conf) { |
| SqoopOptions opt = new SqoopOptions(conf); |
| String username = MSSQLTestUtils.getDBUserName(); |
| String password = MSSQLTestUtils.getDBPassWord(); |
| SqoopOptions opts = new SqoopOptions(conf); |
| opts.setUsername(username); |
| opts.setPassword(password); |
| |
| return opt; |
| } |
| |
| SqoopOptions getSqoopOptions(String[] args, SqoopTool tool) { |
| SqoopOptions opts = null; |
| try { |
| opts = tool.parseArguments(args, null, null, true); |
| String username = MSSQLTestUtils.getDBUserName(); |
| String password = MSSQLTestUtils.getDBPassWord(); |
| opts.setUsername(username); |
| opts.setPassword(password); |
| |
| } catch (Exception e) { |
| LOG.error(StringUtils.stringifyException(e)); |
| fail("Invalid options: " + e.toString()); |
| } |
| |
| return opts; |
| } |
| |
| protected String getTableName() { |
| return "tpch1m_lineitem"; |
| } |
| } |