com.marklogic.mapreduce.test.WordsTest Maven / Gradle / Ivy
package com.marklogic.mapreduce.test;
import java.io.IOException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.Writable;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
import org.apache.hadoop.util.GenericOptionsParser;
import com.marklogic.mapreduce.MarkLogicConstants;
import com.marklogic.mapreduce.ValueInputFormat;
import com.marklogic.mapreduce.functions.Words;
public class WordsTest {
public static class WordsMapper
extends Mapper {
public void map(LongWritable key, Text value, Context context)
throws IOException, InterruptedException {
context.write(key, value);
}
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
String[] otherArgs = new GenericOptionsParser(conf, args).getRemainingArgs();
if (otherArgs.length < 1) {
System.err.println("Usage: WordsTest configFile outputDir");
System.exit(2);
}
Job job = Job.getInstance(conf);
job.setJarByClass(WordsTest.class);
job.setInputFormatClass(ValueInputFormat.class);
job.setMapperClass(WordsMapper.class);
job.setMapOutputKeyClass(LongWritable.class);
job.setMapOutputValueClass(Text.class);
job.setOutputFormatClass(TextOutputFormat.class);
FileOutputFormat.setOutputPath(job, new Path(otherArgs[1]));
conf = job.getConfiguration();
conf.addResource(otherArgs[0]);
conf.setClass(MarkLogicConstants.INPUT_VALUE_CLASS, Text.class,
Writable.class);
conf.setClass(MarkLogicConstants.INPUT_LEXICON_FUNCTION_CLASS,
Words.class, Words.class);
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
}
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