org.dice_research.squirrel.data.uri

Class CrawleableUriFactoryImpl

java.lang.Object

org.dice_research.squirrel.data.uri.CrawleableUriFactoryImpl

All Implemented Interfaces:

CrawleableUriFactory

Direct Known Subclasses:

CrawleableUriFactory4Tests

public class CrawleableUriFactoryImpl
extends Object
implements CrawleableUriFactory

A simple implementation of a CrawleableUriFactory that is expandable by UriFilter instances.

Author:

Michael Röder (roeder@informatik.uni-leipzig.de)

Field Summary

Fields

Modifier and Type	Field and Description
protected UriFilter[]	filters URI filters applied to the URIs during the generation.
private static org.slf4j.Logger	LOGGER

Constructor Summary

Constructors

Constructor and Description
CrawleableUriFactoryImpl() The default constructor that imposes no additional requirements.
CrawleableUriFactoryImpl(UriFilter... filters) Constructor taking additional filters that are used to check URIs during the creation.

Method Summary

Modifier and Type	Method and Description
CrawleableUri	create(String uri) Creates a CrawleableUri from the given URI String.
CrawleableUri	create(URI uri) Creates a CrawleableUri from the given URI instance.
CrawleableUri	create(URI uri, UriType type) Creates a CrawleableUri from the given URI instance and the given UriType
protected CrawleableUri	filter(CrawleableUri createdUri) Returns the given CrawleableUri instance if all local filters marked it as a good URI.

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

filters

protected UriFilter[] filters

URI filters applied to the URIs during the generation.

Constructor Detail

CrawleableUriFactoryImpl

public CrawleableUriFactoryImpl()

The default constructor that imposes no additional requirements.

CrawleableUriFactoryImpl

public CrawleableUriFactoryImpl(UriFilter... filters)

Constructor taking additional filters that are used to check URIs during the creation.

Parameters:

filters -

Method Detail

create

public CrawleableUri create(String uri)

Description copied from interface: CrawleableUriFactory

Creates a CrawleableUri from the given URI String.

Specified by:

create in interface CrawleableUriFactory

Parameters:

uri - the URI that should be crawleable.

Returns:

A CrawleableUri instance based on the given URI string or null, if the given URI did not fulfill the requirements of a crawleable URI.

create

public CrawleableUri create(URI uri)

Description copied from interface: CrawleableUriFactory

Creates a CrawleableUri from the given URI instance.

Specified by:

create in interface CrawleableUriFactory

Parameters:

uri - the URI that should be crawleable.

Returns:

A CrawleableUri instance based on the given URI instance or null, if the given URI did not fulfill the requirements of a crawleable URI.

create

public CrawleableUri create(URI uri,
                            UriType type)

Description copied from interface: CrawleableUriFactory

Creates a CrawleableUri from the given URI instance and the given UriType

Specified by:

create in interface CrawleableUriFactory

Parameters:

uri - the URI that should be crawleable.

Returns:

A CrawleableUri instance based on the given URI instance and the given UriType or null, if the given URI did not fulfill the requirements of a crawleable URI.

filter

protected CrawleableUri filter(CrawleableUri createdUri)

Returns the given CrawleableUri instance if all local filters marked it as a good URI. Otherwise null is returned.

Parameters:

createdUri - the URI that should be checked using the local filters.

Returns:

the given CrawleableUri instance if it is a good URI. Otherwise null is returned.