de.kumpe.hadooptimizer.examples.painting
Class SvgRenderer.SvgRendererMapper

java.lang.Object
  org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.ObjectWritable>
      de.kumpe.hadooptimizer.examples.painting.SvgRenderer.SvgRendererMapper

Enclosing class:

SvgRenderer

public static class SvgRenderer.SvgRendererMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.ObjectWritable>

The Mapper to do the actual work. See SvgRenderer for details. *

Author:

Christian Kumpe

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

SvgRenderer.SvgRendererMapper()

Method Summary

protected void	map(org.apache.hadoop.io.LongWritable key, org.apache.hadoop.io.Text value, org.apache.hadoop.mapreduce.Mapper.Context context) Parses the given line and if the best result of every 1000th cycle, create an SVG-image and write the parsed double-values into the output.
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Methods inherited from class org.apache.hadoop.mapreduce.Mapper

cleanup, run

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SvgRenderer.SvgRendererMapper

public SvgRenderer.SvgRendererMapper()

Method Detail

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
              throws IOException,
                     InterruptedException

Overrides:

setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.ObjectWritable>

Throws:

IOException

InterruptedException

map

protected void map(org.apache.hadoop.io.LongWritable key,
                   org.apache.hadoop.io.Text value,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException

Parses the given line and if the best result of every 1000th cycle, create an SVG-image and write the parsed double-values into the output.

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.ObjectWritable>

Throws:

IOException

InterruptedException