websphinx.searchengine
Class MetaCrawler

java.lang.Object
  |
  +--websphinx.searchengine.MetaCrawler

All Implemented Interfaces:

Classifier, SearchEngine, java.io.Serializable

public class MetaCrawler

extends java.lang.Object

implements SearchEngine

MetaCrawler search engine.

See Also:

Serialized Form

Field Summary

(package private) static Pattern	patCount
(package private) static Pattern	patMoreLink
(package private) static Pattern	patNoHits
(package private) static Pattern	patResult
static float	priority Priority of this classifier.

Constructor Summary

MetaCrawler()

Method Summary

void	classify(Page page) Classify a page.
float	getPriority() Get priority of this classifier.
int	getResultsPerPage() Get number of results per page for this search engine.
java.net.URL	makeQuery(java.lang.String keywords) Make a query URL for MetaCrawler.
static Search	search(java.lang.String keywords) Search MetaCrawler.
static Search	search(java.lang.String keywords, int maxResults) Search MetaCrawler.

Methods inherited from class java.lang.Object

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

Field Detail

patCount

static Pattern patCount

patNoHits

static Pattern patNoHits

patResult

static Pattern patResult

patMoreLink

static Pattern patMoreLink

priority

public static final float priority

Priority of this classifier.

Constructor Detail

MetaCrawler

public MetaCrawler()

Method Detail

classify

public void classify(Page page)

Classify a page. Sets the following labels:

Name	Type	Meaning
searchengine.source	Page label	MetaCrawler object that labeled the page
searchengine.count	Page field	Number of results on page
searchengine.results	Page fields	Array of results. Each result region contains subfields: rank, title, description, and link.
searchengine.more-results	Link label	Link to a page containing more results.

Specified by:

classify in interface Classifier

Following copied from interface: websphinx.Classifier

Parameters:

page - Page to classify

getPriority

public float getPriority()

Get priority of this classifier.

Specified by:

getPriority in interface Classifier

Returns:

priority.

makeQuery

public java.net.URL makeQuery(java.lang.String keywords)

Make a query URL for MetaCrawler.

Specified by:

makeQuery in interface SearchEngine

Parameters:

keywords - list of keywords, separated by spaces

Returns:

URL that submits the keywords to MetaCrawler.

getResultsPerPage

public int getResultsPerPage()

Get number of results per page for this search engine.

Specified by:

getResultsPerPage in interface SearchEngine

Returns:

typical number of results per page

search

public static Search search(java.lang.String keywords)

Search MetaCrawler.

Parameters:

keywords - list of keywords, separated by spaces

Returns:

enumeration of SearchEngineResults returned by an MetaCrawler query constructed from the keywords.

search

public static Search search(java.lang.String keywords,
                            int maxResults)

Search MetaCrawler.

Parameters:

keywords - list of keywords, separated by spaces

maxResults - maximum number of results to return

Returns:

enumeration of SearchEngineResults returned by an MetaCrawler query constructed from the keywords. The enumeration yields at most maxResults objects.