Class NDJSONLDParser

java.lang.Object

org.eclipse.rdf4j.rio.helpers.AbstractRDFParser

org.eclipse.rdf4j.rio.jsonld.JSONLDParser

org.eclipse.rdf4j.rio.ndjsonld.NDJSONLDParser

All Implemented Interfaces:

RDFParser

public class NDJSONLDParser
extends JSONLDParser

Introduce a parser capable of parsing Newline Delimited JSON-LD, where each line is a serialized JSON-LD record. The format is inspired by Newline Delimited JSON formathttp://ndjson.org/. Even though each line is a separate JSON-LD document, the whole document is treated as a single RDF document, having one single BNodes context to preserve BNodes identifiers.

Author:

Desislava Hristova

Field Summary

Fields inherited from class AbstractRDFParser

rdfHandler, valueFactory

Modifier and Type	Field	Description
protected RDFHandler	rdfHandler	The RDFHandler that will handle the parsed RDF.
protected ValueFactory	valueFactory	The ValueFactory to use for creating RDF model objects.

Constructor Summary

Constructors

Constructor	Description
NDJSONLDParser()	Default constructor
NDJSONLDParser(ValueFactory valueFactory)	Creates a RDF4J NDJSONLD Parser using the given ValueFactory to create new Values.

Method Summary

Modifier and Type	Method	Description
protected no.hasmac.jsonld.document.Document	getDocument(InputStream in, Reader reader)	This method is overridden by the NDJSONLDParser
RDFFormat	getRDFFormat()	Gets the RDF format that this parser can parse.
void	parse(InputStream in, String baseURI)	Parses the data from the supplied InputStream, using the supplied baseURI to resolve any relative URI references.

Methods inherited from class JSONLDParser

getSupportedSettings, parse

Modifier and Type	Method	Description
Collection<RioSetting<?>>	getSupportedSettings()
void	parse(Reader reader, String baseURI)	Parses the data from the supplied Reader, using the supplied baseURI to resolve any relative URI references.

Methods inherited from class AbstractRDFParser

clear, clearBNodeIDMap, createBNode, createBNode, createLiteral, createLiteral, createLiteral, createNode, createNode, createStatement, createStatement, createURI, getNamespace, getParseErrorListener, getParseLocationListener, getParserConfig, getRDFHandler, initializeNamespaceTableFromConfiguration, preserveBNodeIDs, reportError, reportError, reportError, reportError, reportError, reportFatalError, reportFatalError, reportFatalError, reportFatalError, reportFatalError, reportLocation, reportWarning, reportWarning, resolveURI, set, setBaseURI, setBaseURI, setNamespace, setParseErrorListener, setParseLocationListener, setParserConfig, setPreserveBNodeIDs, setRDFHandler, setValueFactory

Modifier and Type	Method	Description
protected void	clear()	Clears any information that has been collected while parsing.
protected void	clearBNodeIDMap()	Deprecated. Map is no longer used, call AbstractRDFParser.clear() instead.
protected BNode	createBNode()	Deprecated.
protected BNode	createBNode(String nodeID)	Deprecated.
protected Literal	createLiteral(String label, String lang, CoreDatatype datatype, long lineNo, long columnNo)	Creates a Literal object with the supplied parameters, using the lineNo and columnNo to enhance error messages or exceptions that may be generated during the creation of the literal.
protected Literal	createLiteral(String label, String lang, IRI datatype)	Creates a Literal object with the supplied parameters.
protected Literal	createLiteral(String label, String lang, IRI datatype, long lineNo, long columnNo)	Creates a Literal object with the supplied parameters, using the lineNo and columnNo to enhance error messages or exceptions that may be generated during the creation of the literal.
protected Resource	createNode()	Creates a new BNode or Skolem IRI object.
protected Resource	createNode(String nodeID)	Creates a BNode or Skolem IRI object for the specified identifier.
protected Statement	createStatement(Resource subj, IRI pred, Value obj)	Creates a new Statement object with the supplied components.
protected Statement	createStatement(Resource subj, IRI pred, Value obj, Resource context)	Creates a new Statement object with the supplied components.
protected IRI	createURI(String uri)	Creates a IRI object for the specified URI-string.
protected String	getNamespace(String prefix)	Gets the namespace that is associated with the specified prefix or throws an RDFParseException.
ParseErrorListener	getParseErrorListener()
ParseLocationListener	getParseLocationListener()
ParserConfig	getParserConfig()	Retrieves the current parser configuration as a single object.
RDFHandler	getRDFHandler()
protected void	initializeNamespaceTableFromConfiguration()
boolean	preserveBNodeIDs()
protected void	reportError(Exception e, long lineNo, long columnNo, RioSetting<Boolean> relevantSetting)	Reports an error with associated line- and column number to the registered ParseErrorListener, if the given setting has been set to true.
protected void	reportError(Exception e, RioSetting<Boolean> relevantSetting)	Reports an error with associated line- and column number to the registered ParseErrorListener, if the given setting has been set to true.
protected void	reportError(String msg, long lineNo, long columnNo, RioSetting<Boolean> relevantSetting)	Reports an error with associated line- and column number to the registered ParseErrorListener, if the given setting has been set to true.
protected void	reportError(String msg, Exception e, long lineNo, long columnNo, RioSetting<Boolean> relevantSetting)	Reports an error with associated line- and column number to the registered ParseErrorListener, if the given setting has been set to true.
protected void	reportError(String msg, RioSetting<Boolean> relevantSetting)	Reports an error with associated line- and column number to the registered ParseErrorListener, if the given setting has been set to true.
protected void	reportFatalError(Exception e)	Reports a fatal error to the registered ParseErrorListener, if any, and throws a ParseException afterwards.
protected void	reportFatalError(Exception e, long lineNo, long columnNo)	Reports a fatal error with associated line- and column number to the registered ParseErrorListener, if any, and throws a ParseException wrapped the supplied exception afterwards.
protected void	reportFatalError(String msg)	Reports a fatal error to the registered ParseErrorListener, if any, and throws a ParseException afterwards.
protected void	reportFatalError(String msg, long lineNo, long columnNo)	Reports a fatal error with associated line- and column number to the registered ParseErrorListener, if any, and throws a ParseException afterwards.
protected void	reportFatalError(String message, Exception e, long lineNo, long columnNo)	Reports a fatal error with associated line- and column number to the registered ParseErrorListener, if any, and throws a ParseException wrapped the supplied exception afterwards.
protected void	reportLocation(long lineNo, long columnNo)	Reports the specified line- and column number to the registered ParseLocationListener, if any.
protected void	reportWarning(String msg)	Reports a warning to the registered ParseErrorListener, if any.
protected void	reportWarning(String msg, long lineNo, long columnNo)	Reports a warning with associated line- and column number to the registered ParseErrorListener, if any.
protected IRI	resolveURI(String uriSpec)	Resolves a URI-string against the base URI and creates a IRI object for it.
<T> RDFParser	set(RioSetting<T> setting, T value)	Set a setting on the parser, and return this parser object to allow chaining.
protected void	setBaseURI(String uriSpec)	Parses the supplied URI-string and sets it as the base URI for resolving relative URIs.
protected void	setBaseURI(ParsedIRI baseURI)	Sets the base URI for resolving relative URIs.
protected void	setNamespace(String prefix, String namespace)	Associates the specified prefix to the specified namespace.
RDFParser	setParseErrorListener(ParseErrorListener el)	Sets the ParseErrorListener that will be notified of any errors that this parser finds during parsing.
RDFParser	setParseLocationListener(ParseLocationListener el)	Sets the ParseLocationListener that will be notified of the parser's progress during the parse process.
RDFParser	setParserConfig(ParserConfig config)	Sets all supplied parser configuration options.
void	setPreserveBNodeIDs(boolean preserveBNodeIDs)	Set whether the parser should preserve bnode identifiers specified in the source (default is false).
RDFParser	setRDFHandler(RDFHandler handler)	Sets the RDFHandler that will handle the parsed RDF data.
RDFParser	setValueFactory(ValueFactory valueFactory)	Sets the ValueFactory that the parser will use to create Value objects for the parsed RDF data.

Methods inherited from class Object

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

Methods inherited from interface RDFParser

parse, parse

Modifier and Type	Method	Description
default void	parse(InputStream in)	Parses the data from the supplied InputStream.
default void	parse(Reader reader)	Parses the data from the supplied Reader.

Constructor Details

NDJSONLDParser

public NDJSONLDParser()

Default constructor

NDJSONLDParser

public NDJSONLDParser(ValueFactory valueFactory)

Creates a RDF4J NDJSONLD Parser using the given ValueFactory to create new Values.

Parameters:

valueFactory - The ValueFactory to use

Method Details

getRDFFormat

public RDFFormat getRDFFormat()

Description copied from interface: RDFParser

Gets the RDF format that this parser can parse.

Specified by:

getRDFFormat in interface RDFParser

Overrides:

getRDFFormat in class JSONLDParser

getDocument

protected no.hasmac.jsonld.document.Document getDocument(InputStream in,
 Reader reader)
                                                  throws no.hasmac.jsonld.JsonLdError,
IOException

Description copied from class: JSONLDParser

This method is overridden by the NDJSONLDParser

Overrides:

getDocument in class JSONLDParser

Parameters:

in -

reader -

Returns:

Throws:

no.hasmac.jsonld.JsonLdError

IOException

parse

public void parse(InputStream in,
 String baseURI)
           throws RDFParseException,
RDFHandlerException,
IOException

Description copied from interface: RDFParser

Parses the data from the supplied InputStream, using the supplied baseURI to resolve any relative URI references.

Specified by:

parse in interface RDFParser

Overrides:

parse in class JSONLDParser

Parameters:

in - The InputStream from which to read the data.

baseURI - The URI associated with the data in the InputStream. May be null. Parsers for syntax formats that do not support relative URIs will ignore this argument.

Note that if the data contains an embedded base URI, that embedded base URI will overrule the value supplied here (see RFC 3986 section 5.1 for details).

Throws:

RDFParseException - If the parser has found an unrecoverable parse error.

RDFHandlerException - If the configured statement handler has encountered an unrecoverable error.

IOException - If an I/O error occurred while data was read from the InputStream.