org.semanticweb.owlapi.rdf.rdfxml.parser

Class RDFParser

java.lang.Object

org.xml.sax.helpers.DefaultHandler

org.semanticweb.owlapi.rdf.rdfxml.parser.RDFParser

All Implemented Interfaces:

IRIProvider, ContentHandler, DTDHandler, EntityResolver, ErrorHandler

public class RDFParser
extends org.xml.sax.helpers.DefaultHandler
implements IRIProvider

This class parses the RDF according to the syntax specified in http://www.w3.org/TR/rdf-syntax-grammar/.

Constructor Summary

Constructors

Constructor and Description
RDFParser()

Method Summary

Modifier and Type	Method and Description
void	characters(char[] ch, int start, int length)
void	endDocument()
void	endElement(String uri, String localName, String qName)
void	error(SAXParseException e)
void	fatalError(SAXParseException e)
IRI	getIRI(String s)
void	parse(InputSource source, RDFConsumer inputConsumer) Parses RDF from given input source.
void	popState() Pops a state from the stack.
void	processingInstruction(String target, String data)
void	pushState(State s) Pushes a new state on the state stack.
String	resolveIRI(String uri) Resolves an IRI with the current base.
void	setDocumentLocator(Locator locator)
void	setErrorHandler(ErrorHandler errorHandler) Sets the error handler.
void	startDocument()
void	startElement(String uri, String localName, String qName, Attributes attributes)
void	statementWithLiteralValue(String subject, String predicate, String object, String dataType, String reificationID) Called when a statement with literal value is added to the model.
void	statementWithResourceValue(String subject, String predicate, String object, String reificationID) Called when a statement with resource value is added to the model.
void	verify(boolean b, String message) If conditon b is true, throw an exception with provided message
void	warning(SAXParseException e)

Methods inherited from class org.xml.sax.helpers.DefaultHandler

endPrefixMapping, ignorableWhitespace, notationDecl, resolveEntity, skippedEntity, startPrefixMapping, unparsedEntityDecl

Methods inherited from class java.lang.Object

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

Constructor Detail

RDFParser

public RDFParser()

Method Detail

parse

public void parse(@Nonnull
                  InputSource source,
                  @Nonnull
                  RDFConsumer inputConsumer)
           throws SAXException,
                  IOException

Parses RDF from given input source.

Parameters:

source - specifies where RDF comes from

inputConsumer - receives notifications about RDF parsing events

Throws:

SAXException - SAXException

IOException - IOException

setDocumentLocator

public void setDocumentLocator(Locator locator)

Specified by:

setDocumentLocator in interface ContentHandler

Overrides:

setDocumentLocator in class org.xml.sax.helpers.DefaultHandler

setErrorHandler

public void setErrorHandler(@Nonnull
                            ErrorHandler errorHandler)

Sets the error handler.

Parameters:

errorHandler - the error handler

warning

public void warning(SAXParseException e)
             throws SAXException

Specified by:

warning in interface ErrorHandler

Overrides:

warning in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

error

public void error(SAXParseException e)
           throws SAXException

Specified by:

error in interface ErrorHandler

Overrides:

error in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

fatalError

public void fatalError(SAXParseException e)
                throws SAXException

Specified by:

fatalError in interface ErrorHandler

Overrides:

fatalError in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

startDocument

public void startDocument()

Specified by:

startDocument in interface ContentHandler

Overrides:

startDocument in class org.xml.sax.helpers.DefaultHandler

endDocument

public void endDocument()

Specified by:

endDocument in interface ContentHandler

Overrides:

endDocument in class org.xml.sax.helpers.DefaultHandler

startElement

public void startElement(String uri,
                         String localName,
                         String qName,
                         Attributes attributes)
                  throws SAXException

Specified by:

startElement in interface ContentHandler

Overrides:

startElement in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

endElement

public void endElement(String uri,
                       String localName,
                       String qName)
                throws SAXException

Specified by:

endElement in interface ContentHandler

Overrides:

endElement in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

characters

public void characters(char[] ch,
                       int start,
                       int length)
                throws SAXException

Specified by:

characters in interface ContentHandler

Overrides:

characters in class org.xml.sax.helpers.DefaultHandler

Throws:

SAXException

processingInstruction

public void processingInstruction(String target,
                                  String data)

Specified by:

processingInstruction in interface ContentHandler

Overrides:

processingInstruction in class org.xml.sax.helpers.DefaultHandler

pushState

public void pushState(State s)

Pushes a new state on the state stack.

Parameters:

s - new state

popState

public void popState()

Pops a state from the stack.

resolveIRI

@Nonnull
public String resolveIRI(@Nonnull
                                  String uri)

Resolves an IRI with the current base.

Parameters:

uri - the IRI being resolved

Returns:

the resolved IRI

statementWithResourceValue

public void statementWithResourceValue(@Nonnull
                                       String subject,
                                       @Nonnull
                                       String predicate,
                                       @Nonnull
                                       String object,
                                       @Nullable
                                       String reificationID)

Called when a statement with resource value is added to the model.

Parameters:

subject - IRI of the subject resource

predicate - IRI of the predicate resource

object - IRI of the object resource

reificationID - if not null, contains IRI of the resource that will wold the reified statement

statementWithLiteralValue

public void statementWithLiteralValue(@Nonnull
                                      String subject,
                                      @Nonnull
                                      String predicate,
                                      @Nonnull
                                      String object,
                                      @Nullable
                                      String dataType,
                                      @Nullable
                                      String reificationID)

Called when a statement with literal value is added to the model.

Parameters:

subject - IRI of the subject resource

predicate - IRI of the predicate resource

object - literal object value

dataType - the IRI of the literal's datatype (may be null)

reificationID - if not null, contains IRI of the resource that will wold the reified statement

getIRI

@Nonnull
public IRI getIRI(@Nonnull
                           String s)

Specified by:

getIRI in interface IRIProvider

Parameters:

s - input String

Returns:

iri

verify

public void verify(boolean b,
                   @Nonnull
                   String message)

If conditon b is true, throw an exception with provided message

Parameters:

b - condition to verify

message - message for the exception

Throws:

RDFParserException - exception thrown