org.archive.crawler.frontier
Class URIQueueMatcher

java.lang.Object
  org.archive.crawler.frontier.URIQueueMatcher

All Implemented Interfaces:

org.apache.commons.collections.Predicate

public class URIQueueMatcher
extends java.lang.Object
implements org.apache.commons.collections.Predicate

An implementation of the QueueItemMatcher suitible for the queues used by the Frontier

Author:

Kristinn Sigurdsson

See Also:

Predicate, HostQueuesFrontier

Constructor Summary

URIQueueMatcher(java.lang.String pattern, boolean delete, Frontier frontier)
Constructor.

Method Summary

boolean

evaluate(java.lang.Object o)

Methods inherited from class java.lang.Object

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

Constructor Detail

URIQueueMatcher

public URIQueueMatcher(java.lang.String pattern,
                       boolean delete,
                       Frontier frontier)

Constructor.

Parameters:

pattern - A regular expression that will be applied to the CandidateURIs' URIstring to determine if they 'match'.

delete - If true then each time a match is hit, the related CandidateURI will have it's fetch status set to Deleted by user and sent to the frontier's finish method for final disposition.

frontier - The parent frontier. This can be null if delete is false. Must be valid if delete is true.

Method Detail

evaluate

public boolean evaluate(java.lang.Object o)

Specified by:

evaluate in interface org.apache.commons.collections.Predicate