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org.apache.crunch.impl.mr.plan
Class DotfileWriter

java.lang.Object
  org.apache.crunch.impl.mr.plan.DotfileWriter

public class DotfileWriter
extends Object

Writes Graphviz dot files to illustrate the topology of Crunch pipelines.

Constructor Summary

DotfileWriter()

Method Summary

void	addJobPrototype(org.apache.crunch.impl.mr.plan.JobPrototype jobPrototype) Add the contents of a JobPrototype to the graph describing a pipeline.
String	buildDotfile() Build up the full dot file containing the description of a MapReduce pipeline.

Methods inherited from class java.lang.Object

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

Constructor Detail

DotfileWriter

public DotfileWriter()

Method Detail

addJobPrototype

public void addJobPrototype(org.apache.crunch.impl.mr.plan.JobPrototype jobPrototype)

Add the contents of a JobPrototype to the graph describing a pipeline.

Parameters:

jobPrototype - A JobPrototype representing a portion of a MapReduce pipeline

buildDotfile

public String buildDotfile()

Build up the full dot file containing the description of a MapReduce pipeline.

Returns:

Graphviz dot file contents