Java tutorial
/** * 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 com.cloudera.sqoop.manager; import com.cloudera.sqoop.ConnFactory; import com.cloudera.sqoop.SqoopOptions; import com.cloudera.sqoop.testutil.CommonArgs; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.cloudera.sqoop.testutil.ExportJobTestCase; import org.apache.hadoop.conf.Configuration; import org.junit.After; import org.junit.Before; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.io.Writer; import java.sql.Connection; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import java.util.ArrayList; /** * Please see instructions in SQLServerManagerImportManualTest. */ public class SQLServerManagerExportManualTest extends ExportJobTestCase { public static final Log LOG = LogFactory.getLog(SQLServerManagerExportManualTest.class.getName()); static final String HOST_URL = System.getProperty("sqoop.test.sqlserver.connectstring.host_url", "jdbc:sqlserver://sqlserverhost:1433"); static final String DATABASE_NAME = "SQOOPTEST"; static final String DATABASE_USER = "SQOOPUSER"; static final String DATABASE_PASSWORD = "PASSWORD"; static final String SCHEMA_DBO = "dbo"; static final String DBO_TABLE_NAME = "EMPLOYEES_MSSQL"; static final String DBO_BINARY_TABLE_NAME = "BINARYTYPE_MSSQL"; static final String SCHEMA_SCH = "sch"; static final String SCH_TABLE_NAME = "PRIVATE_TABLE"; static final String CONNECT_STRING = HOST_URL + ";databaseName=" + DATABASE_NAME; static final String CONNECTOR_FACTORY = System.getProperty("sqoop.test.msserver.connector.factory", ConnFactory.DEFAULT_FACTORY_CLASS_NAMES); // instance variables populated during setUp, used during tests private SQLServerManager manager; private Configuration conf = new Configuration(); private Connection conn = null; @Override protected Configuration getConf() { return conf; } @Override protected boolean useHsqldbTestServer() { return false; } @Before public void setUp() { super.setUp(); SqoopOptions options = new SqoopOptions(CONNECT_STRING, DBO_TABLE_NAME); options.setUsername(DATABASE_USER); options.setPassword(DATABASE_PASSWORD); manager = new SQLServerManager(options); createTableAndPopulateData(SCHEMA_DBO, DBO_TABLE_NAME); createTableAndPopulateData(SCHEMA_SCH, SCH_TABLE_NAME); // To test with Microsoft SQL server connector, copy the connector jar to // sqoop.thirdparty.lib.dir and set sqoop.test.msserver.connector.factory // to com.microsoft.sqoop.SqlServer.MSSQLServerManagerFactory. By default, // the built-in SQL server connector is used. conf.setStrings(ConnFactory.FACTORY_CLASS_NAMES_KEY, CONNECTOR_FACTORY); } public void createTableAndPopulateData(String schema, String table) { String fulltableName = manager.escapeObjectName(schema) + "." + manager.escapeObjectName(table); Statement stmt = null; // Create schema if needed try { conn = manager.getConnection(); stmt = conn.createStatement(); stmt.execute("CREATE SCHEMA " + schema); conn.commit(); } catch (SQLException sqlE) { LOG.info("Can't create schema: " + sqlE.getMessage()); } finally { try { if (null != stmt) { stmt.close(); } } catch (Exception ex) { LOG.warn("Exception while closing stmt", ex); } } // Drop the existing table, if there is one. try { conn = manager.getConnection(); stmt = conn.createStatement(); stmt.execute("DROP TABLE " + fulltableName); conn.commit(); } catch (SQLException sqlE) { LOG.info("Table was not dropped: " + sqlE.getMessage()); } finally { try { if (null != stmt) { stmt.close(); } } catch (Exception ex) { LOG.warn("Exception while closing stmt", ex); } } // Create and populate table try { conn = manager.getConnection(); conn.setAutoCommit(false); stmt = conn.createStatement(); // create the database table and populate it with data. stmt.executeUpdate( "CREATE TABLE " + fulltableName + " (" + "id INT NOT NULL, " + "name VARCHAR(24) NOT NULL, " + "salary FLOAT, " + "dept VARCHAR(32), " + "PRIMARY KEY (id))"); conn.commit(); } catch (SQLException sqlE) { LOG.error("Encountered SQL Exception: ", sqlE); sqlE.printStackTrace(); fail("SQLException when running test setUp(): " + sqlE); } finally { try { if (null != stmt) { stmt.close(); } } catch (Exception ex) { LOG.warn("Exception while closing connection/stmt", ex); } } } public void createSQLServerBinaryTypeTable(String schema, String table) { String fulltableName = manager.escapeObjectName(schema) + "." + manager.escapeObjectName(table); Statement stmt = null; // Create schema if needed try { conn = manager.getConnection(); stmt = conn.createStatement(); stmt.execute("CREATE SCHEMA " + schema); conn.commit(); } catch (SQLException sqlE) { LOG.info("Can't create schema: " + sqlE.getMessage()); } finally { try { if (null != stmt) { stmt.close(); } } catch (Exception ex) { LOG.warn("Exception while closing stmt", ex); } } // Drop the existing table, if there is one. try { conn = manager.getConnection(); stmt = conn.createStatement(); stmt.execute("DROP TABLE " + fulltableName); conn.commit(); } catch (SQLException sqlE) { LOG.info("Table was not dropped: " + sqlE.getMessage()); } finally { try { if (null != stmt) { stmt.close(); } } catch (Exception ex) { LOG.warn("Exception while closing stmt", ex); } } // Create and populate table try { conn = manager.getConnection(); conn.setAutoCommit(false); stmt = conn.createStatement(); // create the database table and populate it with data. stmt.executeUpdate("CREATE TABLE " + fulltableName + " (" + "id INT PRIMARY KEY, " + "b1 BINARY(10), " + "b2 VARBINARY(10))"); conn.commit(); } catch (SQLException sqlE) { LOG.error("Encountered SQL Exception: ", sqlE); sqlE.printStackTrace(); fail("SQLException when running test setUp(): " + sqlE); } finally { try { if (null != stmt) { stmt.close(); } } catch (Exception ex) { LOG.warn("Exception while closing connection/stmt", ex); } } } @After public void tearDown() { super.tearDown(); try { conn.close(); manager.close(); } catch (SQLException sqlE) { LOG.error("Got SQLException: " + sqlE.toString()); fail("Got SQLException: " + sqlE.toString()); } } private String[] getArgv(String tableName, String... extraArgs) { ArrayList<String> args = new ArrayList<String>(); CommonArgs.addHadoopFlags(args); args.add("--table"); args.add(tableName); args.add("--export-dir"); args.add(getWarehouseDir()); args.add("--fields-terminated-by"); args.add(","); args.add("--lines-terminated-by"); args.add("\\n"); args.add("--connect"); args.add(CONNECT_STRING); args.add("--username"); args.add(DATABASE_USER); args.add("--password"); args.add(DATABASE_PASSWORD); args.add("-m"); args.add("1"); for (String arg : extraArgs) { args.add(arg); } return args.toArray(new String[0]); } protected void createTestFile(String filename, String[] lines) throws IOException { new File(getWarehouseDir()).mkdirs(); File file = new File(getWarehouseDir() + "/" + filename); Writer output = new BufferedWriter(new FileWriter(file)); for (String line : lines) { output.write(line); output.write("\n"); } output.close(); } public void testExport() throws IOException, SQLException { createTestFile("inputFile", new String[] { "2,Bob,400,sales", "3,Fred,15,marketing", }); runExport(getArgv(DBO_TABLE_NAME)); assertRowCount(2, escapeObjectName(DBO_TABLE_NAME), conn); } public void testExportCustomSchema() throws IOException, SQLException { createTestFile("inputFile", new String[] { "2,Bob,400,sales", "3,Fred,15,marketing", }); String[] extra = new String[] { "--", "--schema", SCHEMA_SCH, }; runExport(getArgv(SCH_TABLE_NAME, extra)); assertRowCount(2, escapeObjectName(SCHEMA_SCH) + "." + escapeObjectName(SCH_TABLE_NAME), conn); } public void testExportTableHints() throws IOException, SQLException { createTestFile("inputFile", new String[] { "2,Bob,400,sales", "3,Fred,15,marketing", }); String[] extra = new String[] { "--", "--table-hints", "ROWLOCK", }; runExport(getArgv(DBO_TABLE_NAME, extra)); assertRowCount(2, escapeObjectName(DBO_TABLE_NAME), conn); } public void testExportTableHintsMultiple() throws IOException, SQLException { createTestFile("inputFile", new String[] { "2,Bob,400,sales", "3,Fred,15,marketing", }); String[] extra = new String[] { "--", "--table-hints", "ROWLOCK,NOWAIT", }; runExport(getArgv(DBO_TABLE_NAME, extra)); assertRowCount(2, escapeObjectName(DBO_TABLE_NAME), conn); } public void testSQLServerBinaryType() throws IOException, SQLException { createSQLServerBinaryTypeTable(SCHEMA_DBO, DBO_BINARY_TABLE_NAME); createTestFile("inputFile", new String[] { "1,73 65 63 72 65 74 00 00 00 00,73 65 63 72 65 74" }); String[] expectedContent = { "73656372657400000000", "736563726574" }; runExport(getArgv(DBO_BINARY_TABLE_NAME)); assertRowCount(1, escapeObjectName(DBO_BINARY_TABLE_NAME), conn); checkSQLBinaryTableContent(expectedContent, escapeObjectName(DBO_BINARY_TABLE_NAME), conn); } /** Make sure mixed update/insert export work correctly. */ public void testUpsertTextExport() throws IOException, SQLException { createTestFile("inputFile", new String[] { "2,Bob,400,sales", "3,Fred,15,marketing", }); // first time will be insert. runExport(getArgv(SCH_TABLE_NAME, "--update-key", "id", "--update-mode", "allowinsert")); // second time will be update. runExport(getArgv(SCH_TABLE_NAME, "--update-key", "id", "--update-mode", "allowinsert")); assertRowCount(2, escapeObjectName(SCH_TABLE_NAME), conn); } public static void checkSQLBinaryTableContent(String[] expected, String tableName, Connection connection) { Statement stmt = null; ResultSet rs = null; try { stmt = connection.createStatement(); rs = stmt.executeQuery("SELECT TOP 1 [b1], [b2] FROM " + tableName); rs.next(); assertEquals(expected[0], rs.getString("b1")); assertEquals(expected[1], rs.getString("b2")); } catch (SQLException e) { LOG.error("Can't verify table content", e); fail(); } finally { try { connection.commit(); if (stmt != null) { stmt.close(); } if (rs != null) { rs.close(); } } catch (SQLException ex) { LOG.info("Ignored exception in finally block."); } } } public static void assertRowCount(long expected, String tableName, Connection connection) { Statement stmt = null; ResultSet rs = null; try { stmt = connection.createStatement(); rs = stmt.executeQuery("SELECT count(*) FROM " + tableName); rs.next(); assertEquals(expected, rs.getLong(1)); } catch (SQLException e) { LOG.error("Can't verify number of rows", e); fail(); } finally { try { connection.commit(); if (stmt != null) { stmt.close(); } if (rs != null) { rs.close(); } } catch (SQLException ex) { LOG.info("Ignored exception in finally block."); } } } public String escapeObjectName(String objectName) { return "[" + objectName + "]"; } }