Package org.restlet.ext.rdf.internal.n3

Class RdfN3Reader

java.lang.Object

org.restlet.ext.rdf.internal.RdfReader

org.restlet.ext.rdf.internal.ntriples.RdfNTriplesReader

org.restlet.ext.rdf.internal.turtle.RdfTurtleReader

org.restlet.ext.rdf.internal.n3.RdfN3Reader

public class RdfN3Reader
extends RdfTurtleReader

Handler of RDF content according to the N3 notation.

Field Summary

Fields inherited from class org.restlet.ext.rdf.internal.ntriples.RdfNTriplesReader

EOF

Constructor Summary

Constructors

Constructor	Description
RdfN3Reader(Representation rdfN3Representation, GraphHandler graphHandler)	Constructor.

Method Summary

Modifier and Type	Method	Description
protected void	generateLinks(java.util.List<LexicalUnit> lexicalUnits)	Loops over the given list of lexical units and generates the adequat calls to link* methods.
private Reference	getPredicate(LexicalUnit lexicalUnit)	Returns the given lexical unit as a predicate.
protected boolean	isDelimiter(int c)	Returns true if the given character is a delimiter.
protected boolean	isPath(LexicalUnit lexicalUnit)	Returns true if the given lexical unit is a "path" shorthand.
protected void	link(java.lang.Object source, Reference typeRef, java.lang.Object target)	Callback method used when a link is parsed or written.
protected void	parseBlankNode(BlankNodeToken blankNode)	Parse the given blank node.
protected void	parseFormula(FormulaToken formulaToken)	Parses the given formula token.
protected void	parseList(ListToken listToken)	Parse the given list token.
protected void	parseStatement(Context context)	Reads the current statement until its end, and parses it.

Methods inherited from class org.restlet.ext.rdf.internal.turtle.RdfTurtleReader

getContext, newBlankNodeId, parse, parseDirective, parseString, parseToken, parseUri

Methods inherited from class org.restlet.ext.rdf.internal.ntriples.RdfNTriplesReader

consumeStatement, consumeWhiteSpaces, discard, getChar, getCurrentToken, getParsingMessage, getParsingMessage, isAlphaNum, isEndOfFile, isWhiteSpace, parseComment, parseStatement, parseToken, parseUri, step, step, stepBack, stepBack

Methods inherited from class org.restlet.ext.rdf.internal.RdfReader

getGraphHandler, getRdfRepresentation

Methods inherited from class java.lang.Object

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

Constructor Detail

RdfN3Reader

public RdfN3Reader(Representation rdfN3Representation,
                   GraphHandler graphHandler)
            throws java.io.IOException

Constructor.

Parameters:

rdfRepresentation - The representation to read.

graphHandler - The graph handler invoked during the parsing.

Throws:

java.io.IOException

Method Detail

generateLinks

protected void generateLinks(java.util.List<LexicalUnit> lexicalUnits)

Description copied from class: RdfTurtleReader

Loops over the given list of lexical units and generates the adequat calls to link* methods.

Overrides:

generateLinks in class RdfTurtleReader

Parameters:

lexicalUnits - The list of lexical units used to generate the links.

See Also:

GraphHandler.link(Graph, Reference, Reference), GraphHandler.link(Reference, Reference, Literal), GraphHandler.link(Reference, Reference, Reference)

getPredicate

private Reference getPredicate(LexicalUnit lexicalUnit)

Returns the given lexical unit as a predicate.

Parameters:

lexicalUnit - The lexical unit to get as a predicate.

Returns:

A RDF URI reference of the predicate.

isDelimiter

protected boolean isDelimiter(int c)

Description copied from class: RdfTurtleReader

Returns true if the given character is a delimiter.

Overrides:

isDelimiter in class RdfTurtleReader

Parameters:

c - The given character to check.

Returns:

true if the given character is a delimiter.

isPath

protected boolean isPath(LexicalUnit lexicalUnit)

Returns true if the given lexical unit is a "path" shorthand.

Parameters:

lexicalUnit - The lexical unit to analyse.

Returns:

True if the given lexical unit is a "path" shorthand.

link

protected void link(java.lang.Object source,
                    Reference typeRef,
                    java.lang.Object target)

Callback method used when a link is parsed or written.

Overrides:

link in class RdfTurtleReader

Parameters:

source - The source or subject of the link.

typeRef - The type reference of the link.

target - The target or object of the link.

parseBlankNode

protected void parseBlankNode(BlankNodeToken blankNode)
                       throws java.io.IOException

Description copied from class: RdfTurtleReader

Parse the given blank node.

Overrides:

parseBlankNode in class RdfTurtleReader

Parameters:

blankNode - The blank node to parse.

Throws:

java.io.IOException

parseFormula

protected void parseFormula(FormulaToken formulaToken)
                     throws java.io.IOException

Parses the given formula token.

Parameters:

formulaToken - The formula token to parse.

Throws:

java.io.IOException

parseList

protected void parseList(ListToken listToken)
                  throws java.io.IOException

Description copied from class: RdfTurtleReader

Parse the given list token.

Overrides:

parseList in class RdfTurtleReader

Parameters:

listToken - The list token to parse.

Throws:

java.io.IOException

parseStatement

protected void parseStatement(Context context)
                       throws java.io.IOException

Description copied from class: RdfTurtleReader

Reads the current statement until its end, and parses it.

Overrides:

parseStatement in class RdfTurtleReader

Parameters:

context - The current context.

Throws:

java.io.IOException