TestMultipleInputs.java
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- /**
- * 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.mapred.lib;
- import java.io.IOException;
- import java.util.Map;
- import junit.framework.TestCase;
- import org.apache.hadoop.fs.Path;
- import org.apache.hadoop.mapred.InputFormat;
- import org.apache.hadoop.mapred.JobConf;
- import org.apache.hadoop.mapred.KeyValueTextInputFormat;
- import org.apache.hadoop.mapred.Mapper;
- import org.apache.hadoop.mapred.OutputCollector;
- import org.apache.hadoop.mapred.Reporter;
- import org.apache.hadoop.mapred.TextInputFormat;
- /**
- * @see TestDelegatingInputFormat
- */
- public class TestMultipleInputs extends TestCase {
-
- public void testAddInputPathWithFormat() {
- final JobConf conf = new JobConf();
- MultipleInputs.addInputPath(conf, new Path("/foo"), TextInputFormat.class);
- MultipleInputs.addInputPath(conf, new Path("/bar"),
- KeyValueTextInputFormat.class);
- final Map<Path, InputFormat> inputs = MultipleInputs
- .getInputFormatMap(conf);
- assertEquals(TextInputFormat.class, inputs.get(new Path("/foo")).getClass());
- assertEquals(KeyValueTextInputFormat.class, inputs.get(new Path("/bar"))
- .getClass());
- }
- public void testAddInputPathWithMapper() {
- final JobConf conf = new JobConf();
- MultipleInputs.addInputPath(conf, new Path("/foo"), TextInputFormat.class,
- MapClass.class);
- MultipleInputs.addInputPath(conf, new Path("/bar"),
- KeyValueTextInputFormat.class, MapClass2.class);
- final Map<Path, InputFormat> inputs = MultipleInputs
- .getInputFormatMap(conf);
- final Map<Path, Class<? extends Mapper>> maps = MultipleInputs
- .getMapperTypeMap(conf);
- assertEquals(TextInputFormat.class, inputs.get(new Path("/foo")).getClass());
- assertEquals(KeyValueTextInputFormat.class, inputs.get(new Path("/bar"))
- .getClass());
- assertEquals(MapClass.class, maps.get(new Path("/foo")));
- assertEquals(MapClass2.class, maps.get(new Path("/bar")));
- }
- static class MapClass implements Mapper<String, String, String, String> {
- public void map(String key, String value,
- OutputCollector<String, String> output, Reporter reporter)
- throws IOException {
- }
- public void configure(JobConf job) {
- }
- public void close() throws IOException {
- }
- }
- static class MapClass2 extends MapClass {
- }
- }