org.springframework.hadoop.mapreduce.AutowiringPartitionerTests.java Source code

Introduction

Here is the source code for org.springframework.hadoop.mapreduce.AutowiringPartitionerTests.java

Source

/*
 * Copyright 2006-2011 the original author or authors.
 *
 * Licensed 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.springframework.hadoop.mapreduce;

import static org.junit.Assert.assertEquals;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapreduce.Partitioner;
import org.junit.Test;
import org.springframework.context.annotation.Bean;
import org.springframework.hadoop.context.DefaultContextLoader;
import org.springframework.hadoop.context.HadoopApplicationContextUtils;
import org.springframework.stereotype.Component;

/**
 * @author Dave Syer
 *
 */
public class AutowiringPartitionerTests {

    @Test
    public void testPartitioner() throws Exception {
        Configuration configuration = new Configuration();
        configuration.setClass(DefaultContextLoader.SPRING_CONFIG_LOCATION, TestConfiguration.class, Object.class);
        HadoopApplicationContextUtils.getBean(configuration, String.class);
        AutowiringPartitioner<Integer, String> partitioner = new AutowiringPartitioner<Integer, String>();
        partitioner.setConf(configuration);
        assertEquals(new Integer(123).hashCode(), partitioner.getPartition(123, "bar", 10));
    }

    @Component
    public static class TestConfiguration {
        @Bean
        public String getDummy() {
            return "foo";
        }

        @Bean
        public Partitioner<Integer, String> getPartitioner() {
            return new Partitioner<Integer, String>() {
                @Override
                public int getPartition(Integer key, String value, int numPartitions) {
                    return key.hashCode();
                }
            };
        }
    }

}