org.apache.nutch.parse

Class ParseSegment

java.lang.Object

org.apache.hadoop.conf.Configured

org.apache.nutch.util.NutchTool

org.apache.nutch.parse.ParseSegment

All Implemented Interfaces:

Closeable, AutoCloseable, Configurable, JobConfigurable, Mapper<WritableComparable<?>,Content,Text,ParseImpl>, Reducer<Text,Writable,Text,Writable>, Tool

public class ParseSegment
extends NutchTool
implements Tool, Mapper<WritableComparable<?>,Content,Text,ParseImpl>, Reducer<Text,Writable,Text,Writable>

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	LOG
static String	SKIP_TRUNCATED

Fields inherited from class org.apache.nutch.util.NutchTool

currentJob, currentJobNum, numJobs, results, status

Constructor Summary

Constructors

Constructor and Description
ParseSegment()
ParseSegment(Configuration conf)

Method Summary

Methods

Modifier and Type	Method and Description
void	close()
void	configure(JobConf job)
static boolean	isTruncated(Content content) Checks if the page's content is truncated.
static void	main(String[] args)
void	map(WritableComparable<?> key, Content content, OutputCollector<Text,ParseImpl> output, Reporter reporter)
void	parse(Path segment)
void	reduce(Text key, Iterator<Writable> values, OutputCollector<Text,Writable> output, Reporter reporter)
Map<String,Object>	run(Map<String,String> args, String crawlId) Runs the tool, using a map of arguments.
int	run(String[] args)

Methods inherited from class org.apache.nutch.util.NutchTool

getProgress, getStatus, killJob, stopJob

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.slf4j.Logger LOG

SKIP_TRUNCATED

public static final String SKIP_TRUNCATED

See Also:

Constant Field Values

Constructor Detail

ParseSegment

public ParseSegment()

ParseSegment

public ParseSegment(Configuration conf)

Method Detail

configure

public void configure(JobConf job)

Specified by:

configure in interface JobConfigurable

close

public void close()

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

map

public void map(WritableComparable<?> key,
       Content content,
       OutputCollector<Text,ParseImpl> output,
       Reporter reporter)
         throws IOException

Specified by:

map in interface Mapper<WritableComparable<?>,Content,Text,ParseImpl>

Throws:

IOException

isTruncated

public static boolean isTruncated(Content content)

Checks if the page's content is truncated.

Parameters:

content -

Returns:

If the page is truncated true. When it is not, or when it could be determined, false.

reduce

public void reduce(Text key,
          Iterator<Writable> values,
          OutputCollector<Text,Writable> output,
          Reporter reporter)
            throws IOException

Specified by:

reduce in interface Reducer<Text,Writable,Text,Writable>

Throws:

IOException

parse

public void parse(Path segment)
           throws IOException

Throws:

IOException

main

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

Throws:

Exception

run

public int run(String[] args)
        throws Exception

Specified by:

run in interface Tool

Throws:

Exception

run

public Map<String,Object> run(Map<String,String> args,
                     String crawlId)
                       throws Exception

Description copied from class: NutchTool

Runs the tool, using a map of arguments. May return results, or null.

Specified by:

run in class NutchTool

Throws:

Exception