TMapper

package com.sxt.hadoop.mr.tq;

import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;
import org.apache.hadoop.util.StringUtils;
//TextInputFormat.class
public class TMapper extends  Mapper<LongWritable, Text, TQ, IntWritable>{
	TQ mkey  =   new TQ();
	IntWritable  mval = new IntWritable();
	@Override
	protected void map(LongWritable key, Text value, Mapper<LongWritable, Text, TQ, IntWritable>.Context context)
			throws IOException, InterruptedException {
//		1949-10-01 14:21:02	34c
		try {
			String[] strs = StringUtils.split(value.toString(),'\t');
			SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
			Date date = sdf.parse(strs[0]);
			Calendar cal = Calendar.getInstance();
			cal.setTime(date);
			mkey.setYear(cal.get(Calendar.YEAR));
			mkey.setMonth(cal.get(Calendar.MONTH)+1);
			mkey.setDay(cal.get(Calendar.DAY_OF_MONTH));
			int wd = Integer.parseInt(strs[1].substring(0, strs[1].length()-1));
			mkey.setWd(wd);
			mval.set(wd);
			context.write(mkey, mval);
		} catch (ParseException e) {
			e.printStackTrace();
		}		
	}

}