| /** |
| * 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.hadoop.mapreduce.lib.db; |
| |
| import java.sql.Connection; |
| import java.sql.Types; |
| import java.util.List; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.mapreduce.Job; |
| import org.apache.hadoop.mapreduce.InputSplit; |
| import org.apache.hadoop.mapreduce.JobContext; |
| import org.apache.hadoop.mapreduce.MRJobConfig; |
| import org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit; |
| import org.apache.hadoop.mapreduce.lib.db.DBInputFormat.NullDBWritable; |
| import org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat.DataDrivenDBInputSplit; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.*; |
| import static org.mockito.Mockito.*; |
| |
| public class TestDbClasses { |
| /** |
| * test splitters from DataDrivenDBInputFormat. For different data types may |
| * be different splitter |
| */ |
| @Test(timeout = 10000) |
| public void testDataDrivenDBInputFormatSplitter() { |
| DataDrivenDBInputFormat<NullDBWritable> format = new DataDrivenDBInputFormat<NullDBWritable>(); |
| testCommonSplitterTypes(format); |
| assertEquals(DateSplitter.class, format.getSplitter(Types.TIMESTAMP) |
| .getClass()); |
| assertEquals(DateSplitter.class, format.getSplitter(Types.DATE).getClass()); |
| assertEquals(DateSplitter.class, format.getSplitter(Types.TIME).getClass()); |
| } |
| |
| @Test(timeout = 10000) |
| public void testDataDrivenDBInputFormat() throws Exception { |
| JobContext jobContext = mock(JobContext.class); |
| Configuration configuration = new Configuration(); |
| configuration.setInt(MRJobConfig.NUM_MAPS, 1); |
| |
| when(jobContext.getConfiguration()).thenReturn(configuration); |
| DataDrivenDBInputFormat<NullDBWritable> format = new DataDrivenDBInputFormat<NullDBWritable>(); |
| List<InputSplit> splits = format.getSplits(jobContext); |
| assertEquals(1, splits.size()); |
| DataDrivenDBInputSplit split = (DataDrivenDBInputSplit) splits.get(0); |
| assertEquals("1=1", split.getLowerClause()); |
| assertEquals("1=1", split.getUpperClause()); |
| |
| // 2 |
| configuration.setInt(MRJobConfig.NUM_MAPS, 2); |
| |
| DataDrivenDBInputFormat.setBoundingQuery(configuration, "query"); |
| assertEquals("query", |
| configuration.get(DBConfiguration.INPUT_BOUNDING_QUERY)); |
| |
| Job job = mock(Job.class); |
| when(job.getConfiguration()).thenReturn(configuration); |
| DataDrivenDBInputFormat.setInput(job, NullDBWritable.class, "query", |
| "Bounding Query"); |
| |
| assertEquals("Bounding Query", |
| configuration.get(DBConfiguration.INPUT_BOUNDING_QUERY)); |
| } |
| |
| @Test(timeout = 10000) |
| public void testOracleDataDrivenDBInputFormat() throws Exception { |
| OracleDataDrivenDBInputFormat<NullDBWritable> format = |
| new OracleDataDrivenDBInputFormatForTest(); |
| testCommonSplitterTypes(format); |
| assertEquals(OracleDateSplitter.class, format.getSplitter(Types.TIMESTAMP) |
| .getClass()); |
| assertEquals(OracleDateSplitter.class, |
| format.getSplitter(Types.DATE).getClass()); |
| assertEquals(OracleDateSplitter.class, |
| format.getSplitter(Types.TIME).getClass()); |
| } |
| |
| /** |
| * test generate sql script for OracleDBRecordReader. |
| */ |
| |
| @Test(timeout = 20000) |
| public void testOracleDBRecordReader() throws Exception { |
| DBInputSplit splitter = new DBInputSplit(1, 10); |
| Configuration configuration = new Configuration(); |
| Connection connect = DriverForTest.getConnection(); |
| |
| DBConfiguration dbConfiguration = new DBConfiguration(configuration); |
| dbConfiguration.setInputOrderBy("Order"); |
| String[] fields = { "f1", "f2" }; |
| |
| OracleDBRecordReader<NullDBWritable> recorder = new OracleDBRecordReader<NullDBWritable>( |
| splitter, NullDBWritable.class, configuration, connect, |
| dbConfiguration, "condition", fields, "table"); |
| assertEquals( |
| "SELECT * FROM (SELECT a.*,ROWNUM dbif_rno FROM ( SELECT f1, f2 FROM table WHERE condition ORDER BY Order ) a WHERE rownum <= 10 ) WHERE dbif_rno > 1", |
| recorder.getSelectQuery()); |
| } |
| |
| private void testCommonSplitterTypes( |
| DataDrivenDBInputFormat<NullDBWritable> format) { |
| assertEquals(BigDecimalSplitter.class, format.getSplitter(Types.DECIMAL) |
| .getClass()); |
| assertEquals(BigDecimalSplitter.class, format.getSplitter(Types.NUMERIC) |
| .getClass()); |
| assertEquals(BooleanSplitter.class, format.getSplitter(Types.BOOLEAN) |
| .getClass()); |
| assertEquals(BooleanSplitter.class, format.getSplitter(Types.BIT) |
| .getClass()); |
| assertEquals(IntegerSplitter.class, format.getSplitter(Types.BIGINT) |
| .getClass()); |
| assertEquals(IntegerSplitter.class, format.getSplitter(Types.TINYINT) |
| .getClass()); |
| assertEquals(IntegerSplitter.class, format.getSplitter(Types.SMALLINT) |
| .getClass()); |
| assertEquals(IntegerSplitter.class, format.getSplitter(Types.INTEGER) |
| .getClass()); |
| assertEquals(FloatSplitter.class, format.getSplitter(Types.DOUBLE) |
| .getClass()); |
| assertEquals(FloatSplitter.class, format.getSplitter(Types.REAL).getClass()); |
| assertEquals(FloatSplitter.class, format.getSplitter(Types.FLOAT) |
| .getClass()); |
| assertEquals(TextSplitter.class, format.getSplitter(Types.LONGVARCHAR) |
| .getClass()); |
| assertEquals(TextSplitter.class, format.getSplitter(Types.CHAR).getClass()); |
| assertEquals(TextSplitter.class, format.getSplitter(Types.VARCHAR) |
| .getClass()); |
| // if unknown data type splitter is null |
| assertNull(format.getSplitter(Types.BINARY)); |
| } |
| |
| private class OracleDataDrivenDBInputFormatForTest extends |
| OracleDataDrivenDBInputFormat<NullDBWritable> { |
| |
| @Override |
| public DBConfiguration getDBConf() { |
| |
| String[] names = { "field1", "field2" }; |
| DBConfiguration result = mock(DBConfiguration.class); |
| when(result.getInputConditions()).thenReturn("conditions"); |
| when(result.getInputFieldNames()).thenReturn(names); |
| when(result.getInputTableName()).thenReturn("table"); |
| return result; |
| } |
| |
| @Override |
| public Connection getConnection() { |
| return DriverForTest.getConnection(); |
| } |
| |
| } |
| |
| } |