Package n10s

Class RDFToLPGStatementProcessor

java.lang.Object

n10s.ConfiguredStatementHandler

n10s.RDFToLPGStatementProcessor

All Implemented Interfaces:

org.eclipse.rdf4j.rio.RDFHandler

Direct Known Subclasses:

DirectStatementDeleter, DirectStatementLoader, OntologyImporter, RDFQuadDirectStatementDeleter, RDFQuadDirectStatementLoader, SkosImporter, StatementPreviewer

public abstract class RDFToLPGStatementProcessor
extends ConfiguredStatementHandler

Created by jbarrasa on 15/04/2019.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected class	RDFToLPGStatementProcessor.HeterogeneousDataTyping
protected class	RDFToLPGStatementProcessor.NamespacePrefixConflict
protected class	RDFToLPGStatementProcessor.PartialCommitException

Nested classes/interfaces inherited from class n10s.ConfiguredStatementHandler

ConfiguredStatementHandler.TripleLimitReached

Field Summary

Fields

Modifier and Type	Field	Description
static int	DATATYPE
protected boolean	datatypeConflictFound
protected org.neo4j.graphdb.GraphDatabaseService	graphdb
static int	LABEL
protected java.lang.StringBuilder	loadWarnings
protected org.neo4j.logging.Log	log
long	mappedTripleCounter
protected NsPrefixMap	namespaces
protected RDFParserConfig	parserConfig
static int	PROPERTY
static int	RELATIONSHIP
protected java.util.Map<org.eclipse.rdf4j.model.Statement,java.util.Map<java.lang.String,java.lang.Object>>	relProps
protected java.util.Map<java.lang.String,java.util.Set<java.lang.String>>	resourceLabels
protected java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.lang.Object>>	resourceProps
protected java.util.Set<org.eclipse.rdf4j.model.Statement>	statements
long	totalTriplesMapped
long	totalTriplesParsed
protected org.neo4j.graphdb.Transaction	tx
protected org.eclipse.rdf4j.model.ValueFactory	vf

Constructor Summary

Constructors

Constructor	Description
RDFToLPGStatementProcessor(org.neo4j.graphdb.GraphDatabaseService db, org.neo4j.graphdb.Transaction tx, RDFParserConfig conf, org.neo4j.logging.Log l)

Method Summary

Modifier and Type	Method	Description
protected boolean	addRelProp(org.eclipse.rdf4j.model.Statement stmt, org.eclipse.rdf4j.model.IRI predicate, org.eclipse.rdf4j.model.Literal propValueRaw)
protected void	addStatement(org.eclipse.rdf4j.model.Statement st)
protected java.util.List<java.lang.String>	defaultToString(java.util.Iterator it)
java.util.Map<java.lang.String,java.lang.String>	getNamespaces()
protected java.lang.Object	getObjectValue(org.eclipse.rdf4j.model.IRI propertyIRI, org.eclipse.rdf4j.model.Literal object)	Processing for literals as follows Mapping according to this figure: https://www.w3.org/TR/xmlschema11-2/#built-in-datatypes String -> String Each sub-category of integer -> long decimal, float, and double -> double boolean -> boolean Custom data type -> String (value + CUSTOM_DATA_TYPE_SEPERATOR + custom DT IRI)
RDFParserConfig	getParserConfig()
protected java.lang.String	getValueWithDatatype(org.eclipse.rdf4j.model.IRI datatype, java.lang.String value)
java.lang.String	getWarnings()
void	handleComment(java.lang.String comment)
protected java.lang.String	handleIRI(org.eclipse.rdf4j.model.IRI iri, int elementType)
void	handleNamespace(java.lang.String prefix, java.lang.String uri)
void	handleStatement(org.eclipse.rdf4j.model.Statement st)
protected abstract void	periodicOperation()
protected void	setLabel(java.lang.String subjectUri, java.lang.String label)
protected boolean	setProp(java.lang.String subjectUri, org.eclipse.rdf4j.model.IRI propertyIRI, org.eclipse.rdf4j.model.Literal propValueRaw)
void	startRDF()
protected java.lang.Object	toPropertyValue(java.lang.Object value)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.rdf4j.rio.RDFHandler

endRDF

Field Detail

RELATIONSHIP

public static final int RELATIONSHIP

See Also:

Constant Field Values

LABEL

public static final int LABEL

See Also:

Constant Field Values

PROPERTY

public static final int PROPERTY

See Also:

Constant Field Values

DATATYPE

public static final int DATATYPE

See Also:

Constant Field Values

log

protected final org.neo4j.logging.Log log

tx

protected org.neo4j.graphdb.Transaction tx

parserConfig

protected final RDFParserConfig parserConfig

graphdb

protected org.neo4j.graphdb.GraphDatabaseService graphdb

namespaces

protected NsPrefixMap namespaces

statements

protected java.util.Set<org.eclipse.rdf4j.model.Statement> statements

resourceProps

protected java.util.Map<java.lang.String,java.util.Map<java.lang.String,java.lang.Object>> resourceProps

relProps

protected java.util.Map<org.eclipse.rdf4j.model.Statement,java.util.Map<java.lang.String,java.lang.Object>> relProps

resourceLabels

protected java.util.Map<java.lang.String,java.util.Set<java.lang.String>> resourceLabels

totalTriplesParsed

public long totalTriplesParsed

totalTriplesMapped

public long totalTriplesMapped

mappedTripleCounter

public long mappedTripleCounter

vf

protected final org.eclipse.rdf4j.model.ValueFactory vf

loadWarnings

protected java.lang.StringBuilder loadWarnings

datatypeConflictFound

protected boolean datatypeConflictFound

Constructor Detail

RDFToLPGStatementProcessor

public RDFToLPGStatementProcessor(org.neo4j.graphdb.GraphDatabaseService db,
                                  org.neo4j.graphdb.Transaction tx,
                                  RDFParserConfig conf,
                                  org.neo4j.logging.Log l)

Method Detail

getObjectValue

protected java.lang.Object getObjectValue(org.eclipse.rdf4j.model.IRI propertyIRI,
                                          org.eclipse.rdf4j.model.Literal object)

Processing for literals as follows Mapping according to this figure: https://www.w3.org/TR/xmlschema11-2/#built-in-datatypes String -> String Each sub-category of integer -> long decimal, float, and double -> double boolean -> boolean Custom data type -> String (value + CUSTOM_DATA_TYPE_SEPERATOR + custom DT IRI)

Returns:

processed literal

getValueWithDatatype

protected java.lang.String getValueWithDatatype(org.eclipse.rdf4j.model.IRI datatype,
                                                java.lang.String value)

handleComment

public void handleComment(java.lang.String comment)
                   throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

handleIRI

protected java.lang.String handleIRI(org.eclipse.rdf4j.model.IRI iri,
                                     int elementType)

startRDF

public void startRDF()
              throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

handleNamespace

public void handleNamespace(java.lang.String prefix,
                            java.lang.String uri)
                     throws org.eclipse.rdf4j.rio.RDFHandlerException

Throws:

org.eclipse.rdf4j.rio.RDFHandlerException

addStatement

protected void addStatement(org.eclipse.rdf4j.model.Statement st)

setProp

protected boolean setProp(java.lang.String subjectUri,
                          org.eclipse.rdf4j.model.IRI propertyIRI,
                          org.eclipse.rdf4j.model.Literal propValueRaw)

setLabel

protected void setLabel(java.lang.String subjectUri,
                        java.lang.String label)

handleStatement

public void handleStatement(org.eclipse.rdf4j.model.Statement st)

addRelProp

protected boolean addRelProp(org.eclipse.rdf4j.model.Statement stmt,
                             org.eclipse.rdf4j.model.IRI predicate,
                             org.eclipse.rdf4j.model.Literal propValueRaw)

getParserConfig

public RDFParserConfig getParserConfig()

Specified by:

getParserConfig in class ConfiguredStatementHandler

getNamespaces

public java.util.Map<java.lang.String,java.lang.String> getNamespaces()

toPropertyValue

protected java.lang.Object toPropertyValue(java.lang.Object value)

defaultToString

protected java.util.List<java.lang.String> defaultToString(java.util.Iterator it)

periodicOperation

protected abstract void periodicOperation()

getWarnings

public java.lang.String getWarnings()