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MyClass.java
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import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
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.input.TextInputFormat;
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
public class MyClass {
public static class MyMapper extends Mapper<LongWritable, Text, Text, IntWritable>{
@Override
protected void map(LongWritable key, Text value, Mapper<LongWritable, Text, Text, IntWritable>.Context context)
throws IOException, InterruptedException {
String line=value.toString();
String s[]=line.split(",");
double l = 0;
for(int i=0;i<s.length;i++){
String a=s[1];
String n[]=a.split(":");
l=(Integer.parseInt(n[0])*60)+Integer.parseInt(n[1])+(Integer.parseInt(n[2])/60);
if(s[i].equals("DEBUG") || s[i].equals("WARN") || s[i].equals("ERROR") || s[i].equals("FATAL") || s[i].equals("INFO"))
{
context.write(new Text(s[0]+" "+Math.round(l)+" "+s[i]), new IntWritable(1));}
}
}
}
public static class MyReducer extends Reducer<Text, IntWritable, Text, IntWritable>{
@Override
protected void reduce(Text key, Iterable<IntWritable> values,
Reducer<Text, IntWritable, Text, IntWritable>.Context context) throws IOException, InterruptedException {
int ans=0;
for(IntWritable val:values){
ans=ans+val.get();
}
context.write(key, new IntWritable(ans));
}
}
public static void main(String[] args) throws IOException, ClassNotFoundException, InterruptedException {
Configuration conf=new Configuration();
Job job=new Job(conf, "Hi");
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(IntWritable.class);
job.setMapOutputKeyClass(Text.class);
job.setOutputValueClass(IntWritable.class);
job.setMapperClass(MyMapper.class);
job.setReducerClass(MyReducer.class);
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(org.apache.hadoop.mapreduce.lib.output.TextOutputFormat.class);
FileInputFormat.addInputPath(job, new Path(args[0]));
FileOutputFormat.setOutputPath(job, new Path(args[1]));
job.waitForCompletion(true);
}
}