Package org.creativecommons.nutch

Class CCIndexingFilter

java.lang.Object

org.creativecommons.nutch.CCIndexingFilter

All Implemented Interfaces:

Configurable, IndexingFilter, Pluggable

public class CCIndexingFilter
extends Object
implements IndexingFilter

Adds basic searchable fields to a document.

Field Summary

Fields

Modifier and Type	Field	Description
static String	FIELD	The name of the document field we use.

Fields inherited from interface org.apache.nutch.indexer.IndexingFilter

X_POINT_ID

Constructor Summary

Constructors

Constructor	Description
CCIndexingFilter()

Method Summary

Modifier and Type	Method	Description
void	addUrlFeatures(NutchDocument doc, String urlString)	Add the features represented by a license URL.
NutchDocument	filter(NutchDocument doc, Parse parse, Text url, CrawlDatum datum, Inlinks inlinks)	Adds fields or otherwise modifies the document that will be indexed for a parse.
Configuration	getConf()
void	setConf(Configuration conf)

Methods inherited from class java.lang.Object

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

Field Details

FIELD

public static String FIELD

The name of the document field we use.

Constructor Details

CCIndexingFilter

public CCIndexingFilter()

Method Details

filter

public NutchDocument filter(NutchDocument doc,
 Parse parse,
 Text url,
 CrawlDatum datum,
 Inlinks inlinks)
                     throws IndexingException

Description copied from interface: IndexingFilter

Adds fields or otherwise modifies the document that will be indexed for a parse. Unwanted documents can be removed from indexing by returning a null value.

Specified by:

filter in interface IndexingFilter

Parameters:

doc - document instance for collecting fields

parse - parse data instance

url - page url

datum - crawl datum for the page (fetch datum from segment containing fetch status and fetch time)

inlinks - page inlinks

Returns:

modified (or a new) document instance, or null (meaning the document should be discarded)

Throws:

IndexingException - if an error occurs during during filtering

addUrlFeatures

public void addUrlFeatures(NutchDocument doc,
 String urlString)

Add the features represented by a license URL. Urls are of the form "http://creativecommons.org/licenses/xx-xx/xx/xx", where "xx" names a license feature.

Parameters:

doc - a NutchDocument to augment

urlString - the url to extract features from

setConf

public void setConf(Configuration conf)

Specified by:

setConf in interface Configurable

getConf

public Configuration getConf()

Specified by:

getConf in interface Configurable