org.wikidata.query.rdf.tool.rdf

Class Munger

java.lang.Object

org.wikidata.query.rdf.tool.rdf.Munger

public final class Munger
extends Object

Munges RDF from Wikibase into a more queryable format. Note that this is tightly coupled with Wikibase's export format.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Munger.BadSubjectException Thrown when the munged triples contain a subject we don't recognize.
static class	Munger.Builder
static interface	Munger.FormatHandler Interface to handle format transformations.

Method Summary

Modifier and Type	Method and Description
static Munger.Builder	builder(UrisScheme uris)
Change	munge(String entityId, Collection<org.openrdf.model.Statement> statements) Adds and removes entries from the statements collection to munge Wikibase RDF exports into a more queryable form.
Change	munge(String entityId, Collection<org.openrdf.model.Statement> statements, Collection<String> existingValues, Collection<String> existingRefs, Change sourceChange) Adds and removes entries from the statements collection to munge Wikibase RDF exports into a more queryable form.
Change	mungeWithValues(String entityId, Collection<org.openrdf.model.Statement> statements, com.google.common.collect.Multimap<String,String> repoValues, com.google.common.collect.Multimap<String,String> repoRefs, Collection<String> valuesContainer, Collection<String> refsContainer, Change sourceChange) Adds and removes entries from the statements collection to munge Wikibase RDF exports into a more queryable form.
void	setFormatVersion(String version) Set format version.

Methods inherited from class java.lang.Object

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

Method Detail

setFormatVersion

public void setFormatVersion(String version)

Set format version.

munge

public Change munge(String entityId,
                    Collection<org.openrdf.model.Statement> statements,
                    Collection<String> existingValues,
                    Collection<String> existingRefs,
                    Change sourceChange)

Adds and removes entries from the statements collection to munge Wikibase RDF exports into a more queryable form.

Parameters:

statements - statements to munge

existingValues - Existing value statements

existingRefs - Existing reference statements

sourceChange - Change that originated the operation

Returns:

the revision data from statements, as Change. At least revision ID and timestamp will be accurate.

mungeWithValues

public Change mungeWithValues(String entityId,
                              Collection<org.openrdf.model.Statement> statements,
                              com.google.common.collect.Multimap<String,String> repoValues,
                              com.google.common.collect.Multimap<String,String> repoRefs,
                              Collection<String> valuesContainer,
                              Collection<String> refsContainer,
                              Change sourceChange)

Adds and removes entries from the statements collection to munge Wikibase RDF exports into a more queryable form. This variant also extracts value and reference nodes from multimap collected by Updater and the ones that will be left in the container at the end of the operation are unused by this change and have to be cleaned up.

Parameters:

statements - statements to munge

repoValues - multimap of all value nodes, keyed by entity ID

repoRefs - multimap of all reference nodes, keyed by entity ID

valuesContainer - Value nodes container

refsContainer - Reference nodes container

sourceChange - Change that originated the operation

Returns:

the revision data from statements, as Change. At least revision ID and timestamp will be accurate.

munge

public Change munge(String entityId,
                    Collection<org.openrdf.model.Statement> statements)

Adds and removes entries from the statements collection to munge Wikibase RDF exports into a more queryable form.

Parameters:

statements - statements to munge

builder

public static Munger.Builder builder(UrisScheme uris)