org.apache.nutch.urlfilter.automaton
Class AutomatonURLFilter

java.lang.Object
  org.apache.nutch.urlfilter.api.RegexURLFilterBase
      org.apache.nutch.urlfilter.automaton.AutomatonURLFilter

All Implemented Interfaces:

Configurable, URLFilter, Pluggable

public class AutomatonURLFilter
extends RegexURLFilterBase

RegexURLFilterBase implementation based on the dk.brics.automaton Finite-State Automata for Java^TM.

Author:

Jérôme Charron

See Also:

dk.brics.automaton

Field Summary

Fields inherited from interface org.apache.nutch.net.URLFilter

X_POINT_ID

Constructor Summary

AutomatonURLFilter()

AutomatonURLFilter(String filename)

Method Summary

protected RegexRule	createRule(boolean sign, String regex) Creates a new RegexRule.
protected String	getRulesFile(Configuration conf) Returns the name of the file of rules to use for a particular implementation.
static void	main(String[] args)

Methods inherited from class org.apache.nutch.urlfilter.api.RegexURLFilterBase

filter, getConf, main, setConf

Methods inherited from class java.lang.Object

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

Constructor Detail

AutomatonURLFilter

public AutomatonURLFilter()

AutomatonURLFilter

public AutomatonURLFilter(String filename)
                   throws IOException,
                          PatternSyntaxException

Throws:

IOException

PatternSyntaxException

Method Detail

getRulesFile

protected String getRulesFile(Configuration conf)

Description copied from class: RegexURLFilterBase

Returns the name of the file of rules to use for a particular implementation.

Specified by:

getRulesFile in class RegexURLFilterBase

Parameters:

conf - is the current configuration.

Returns:

the name of the file of rules to use.

createRule

protected RegexRule createRule(boolean sign,
                               String regex)

Description copied from class: RegexURLFilterBase

Creates a new RegexRule.

Specified by:

createRule in class RegexURLFilterBase

Parameters:

sign - of the regular expression. A true value means that any URL matching this rule must be included, whereas a false value means that any URL matching this rule must be excluded.

regex - is the regular expression associated to this rule.

main

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

Throws:

IOException