| /** |
| * 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.io.IOException; |
| |
| import junit.framework.TestCase; |
| |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.NullWritable; |
| import org.apache.hadoop.mapreduce.Job; |
| |
| public class TestDBOutputFormat extends TestCase { |
| |
| private String[] fieldNames = new String[] { "id", "name", "value" }; |
| private String[] nullFieldNames = new String[] { null, null, null }; |
| private String expected = "INSERT INTO hadoop_output " + |
| "(id,name,value) VALUES (?,?,?);"; |
| private String nullExpected = "INSERT INTO hadoop_output VALUES (?,?,?);"; |
| |
| private DBOutputFormat<DBWritable, NullWritable> format |
| = new DBOutputFormat<DBWritable, NullWritable>(); |
| |
| public void testConstructQuery() { |
| String actual = format.constructQuery("hadoop_output", fieldNames); |
| assertEquals(expected, actual); |
| |
| actual = format.constructQuery("hadoop_output", nullFieldNames); |
| assertEquals(nullExpected, actual); |
| } |
| |
| public void testSetOutput() throws IOException { |
| Job job = Job.getInstance(new Configuration()); |
| DBOutputFormat.setOutput(job, "hadoop_output", fieldNames); |
| |
| DBConfiguration dbConf = new DBConfiguration(job.getConfiguration()); |
| String actual = format.constructQuery(dbConf.getOutputTableName() |
| , dbConf.getOutputFieldNames()); |
| |
| assertEquals(expected, actual); |
| |
| job = Job.getInstance(new Configuration()); |
| dbConf = new DBConfiguration(job.getConfiguration()); |
| DBOutputFormat.setOutput(job, "hadoop_output", nullFieldNames.length); |
| assertNull(dbConf.getOutputFieldNames()); |
| assertEquals(nullFieldNames.length, dbConf.getOutputFieldCount()); |
| |
| actual = format.constructQuery(dbConf.getOutputTableName() |
| , new String[dbConf.getOutputFieldCount()]); |
| |
| assertEquals(nullExpected, actual); |
| } |
| |
| } |