org.nlp2rdf.core.impl
Class MD5Based

java.lang.Object
  org.nlp2rdf.core.impl.AbstractURIGenerator
      org.nlp2rdf.core.impl.MD5Based

All Implemented Interfaces:

URIGenerator

public class MD5Based
extends AbstractURIGenerator
implements URIGenerator

Author:

Sebastian Hellmann

This class implements the NIF Context-Hash URI Scheme. http://nlp2rdf.org/nif-1-0#toc-nif-recipe-context-hash-based-uris The initial contextLength is set to 10

To change this either call init(), which calculates the required minimal contextlength for all uris to be unique for this document. or use the constructor

There is no reason, why this would be threaded, so it is not threadsafe

Field Summary

static String	BRA
static String	IDENTIFIER
static String	KET

Constructor Summary

MD5Based()

MD5Based(int contextLength)

MD5Based(String prefix, com.hp.hpl.jena.ontology.OntModel model)

MD5Based(String text, Set<Span> allSpans)

Method Summary

void	assignRecipeClass(String uri, com.hp.hpl.jena.ontology.OntModel model) adds an rdf:type statement to model for the respective recipe
int	getContextLength()
String	getRecipeUri() This returns the recipe class form the String ontology: http://nlp2rdf.lod2.eu/schema/string/
Span	getSpanFor(String prefix, String uri, String text)
String	makeUri(String prefix, String text, Span span) Depending on the implementation, it might be necessary to call init before calling this function
void	setContextLength(int contextLength)
void	setMinimalContextLength(String text, Set<Span> spans)

Methods inherited from class org.nlp2rdf.core.impl.AbstractURIGenerator

makeUri

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nlp2rdf.core.URIGenerator

makeUri

Field Detail

IDENTIFIER

public static final String IDENTIFIER

See Also:

Constant Field Values

BRA

public static final String BRA

See Also:

Constant Field Values

KET

public static final String KET

See Also:

Constant Field Values

Constructor Detail

MD5Based

public MD5Based()

MD5Based

public MD5Based(int contextLength)

MD5Based

public MD5Based(String text,
                Set<Span> allSpans)

MD5Based

public MD5Based(String prefix,
                com.hp.hpl.jena.ontology.OntModel model)

Method Detail

getRecipeUri

public String getRecipeUri()

Description copied from interface: URIGenerator

This returns the recipe class form the String ontology: http://nlp2rdf.lod2.eu/schema/string/

Specified by:

getRecipeUri in interface URIGenerator

Returns:

a URI from http://nlp2rdf.lod2.eu/schema/string/

assignRecipeClass

public void assignRecipeClass(String uri,
                              com.hp.hpl.jena.ontology.OntModel model)

Description copied from interface: URIGenerator

adds an rdf:type statement to model for the respective recipe

Specified by:

assignRecipeClass in interface URIGenerator

makeUri

public String makeUri(String prefix,
                      String text,
                      Span span)

Description copied from interface: URIGenerator

Depending on the implementation, it might be necessary to call init before calling this function

Specified by:

makeUri in interface URIGenerator

Returns:

setMinimalContextLength

public void setMinimalContextLength(String text,
                                    Set<Span> spans)

getSpanFor

public Span getSpanFor(String prefix,
                       String uri,
                       String text)

Specified by:

getSpanFor in interface URIGenerator

Overrides:

getSpanFor in class AbstractURIGenerator

getContextLength

public int getContextLength()

setContextLength

public void setContextLength(int contextLength)