OrphanPages.java

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.conf.Configured;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Job;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.mapreduce.Reducer;
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;

import java.io.IOException;
import java.util.StringTokenizer;

// >>> Don't Change
public class OrphanPages extends Configured implements Tool {

    public static void main(String[] args) throws Exception {
        int res = ToolRunner.run(new Configuration(), new OrphanPages(), args);
        System.exit(res);
    }
// <<< Don't Change

    @Override
    public int run(String[] args) throws Exception {
        //TODO
    }

    public static class LinkCountMap extends Mapper<Object, Text, IntWritable, IntWritable> {
        @Override
        public void map(Object key, Text value, Context context) throws IOException, InterruptedException {
            //TODO
        }
    }

    public static class OrphanPageReduce extends Reducer<IntWritable, IntWritable, IntWritable, NullWritable> {
        @Override
        public void reduce(IntWritable key, Iterable<IntWritable> values, Context context) throws IOException, InterruptedException {
            //TODO
        }
    }
}