org.apache.hadoop.chukwa.datacollection.writer
Class Dedup

java.lang.Object
  extended by org.apache.hadoop.chukwa.datacollection.writer.Dedup
All Implemented Interfaces:
ChukwaWriter, PipelineableWriter

public class Dedup
extends Object
implements PipelineableWriter


Nested Class Summary
 
Nested classes/interfaces inherited from interface org.apache.hadoop.chukwa.datacollection.writer.ChukwaWriter
ChukwaWriter.COMMIT_PENDING, ChukwaWriter.CommitStatus
 
Field Summary
 
Fields inherited from interface org.apache.hadoop.chukwa.datacollection.writer.ChukwaWriter
COMMIT_FAIL, COMMIT_OK
 
Constructor Summary
Dedup()
           
 
Method Summary
 ChukwaWriter.CommitStatus add(List<Chunk> chunks)
          Called repeatedly with data that should be serialized.
 void close()
          Called once, indicating that the writer should close files and prepare to exit.
 void init(org.apache.hadoop.conf.Configuration c)
          Called once to initialize this writer.
 void setNextStage(ChukwaWriter next)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

Dedup

public Dedup()
Method Detail

setNextStage

public void setNextStage(ChukwaWriter next)
Specified by:
setNextStage in interface PipelineableWriter

add

public ChukwaWriter.CommitStatus add(List<Chunk> chunks)
                              throws WriterException
Description copied from interface: ChukwaWriter
Called repeatedly with data that should be serialized. Subclasses may assume that init() will be called before any calls to add(), and that add() won't be called after close().

Specified by:
add in interface ChukwaWriter
Returns:
Throws:
WriterException

close

public void close()
           throws WriterException
Description copied from interface: ChukwaWriter
Called once, indicating that the writer should close files and prepare to exit.

Specified by:
close in interface ChukwaWriter
Throws:
WriterException

init

public void init(org.apache.hadoop.conf.Configuration c)
          throws WriterException
Description copied from interface: ChukwaWriter
Called once to initialize this writer.

Specified by:
init in interface ChukwaWriter
Throws:
WriterException


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