org.apache.nutch.indexer
Class IndexMerger

java.lang.Object
  org.apache.hadoop.conf.Configured
      org.apache.nutch.indexer.IndexMerger

All Implemented Interfaces:

Configurable, Tool

public class IndexMerger
extends Configured
implements Tool

IndexMerger creates an index for the output corresponding to a single fetcher run.

Author:

Doug Cutting, Mike Cafarella

Field Summary

static String	DONE_NAME
static org.apache.commons.logging.Log	LOG

Constructor Summary

IndexMerger()

IndexMerger(Configuration conf)

Method Summary

static void	main(String[] args) Create an index for the input files in the named directory.
void	merge(Path[] indexes, Path outputIndex, Path localWorkingDir) Merge all input indexes to the single output index
int	run(String[] args)

Methods inherited from class org.apache.hadoop.conf.Configured

getConf, setConf

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Field Detail

LOG

public static final org.apache.commons.logging.Log LOG

DONE_NAME

public static final String DONE_NAME

See Also:

Constant Field Values

Constructor Detail

IndexMerger

public IndexMerger()

IndexMerger

public IndexMerger(Configuration conf)

Method Detail

merge

public void merge(Path[] indexes,
                  Path outputIndex,
                  Path localWorkingDir)
           throws IOException

Merge all input indexes to the single output index

Throws:

IOException

main

public static void main(String[] args)
                 throws Exception

Create an index for the input files in the named directory.

Throws:

Exception

run

public int run(String[] args)
        throws Exception

Specified by:

run in interface Tool

Throws:

Exception