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# Provide service for mapping predicates to object values.
module Qa
module LinkedData
module Mapper
class GraphMapperService
# Extract predicates specified in the predicate_map from the graph and return as a value map for a single subject URI.
# @param graph [RDF::Graph] the graph from which to extract result values
# @param predicate_map [Hash<Symbol><String||Symbol>] value either maps to a predicate in the graph or is :subject_uri indicating to use the subject uri as the value
# @example predicate_map
# {
# uri: :subject_uri,
# id: [#<RDF::URI URI:http://id.loc.gov/vocabulary/identifiers/lccn>],
# label: [#<RDF::URI URI:http://www.w3.org/2004/02/skos/core#prefLabel>],
# altlabel: [#<RDF::URI URI:http://www.w3.org/2004/02/skos/core#altLabel>],
# sort: [#<RDF::URI URI:http://vivoweb.org/ontology/core#rank>]'
# }
# @param subject_uri [RDF::URI] the subject within the graph for which the values are being extracted
# @return [<Hash<Symbol><Array<Object>>] mapped result values with hash of map key = array of object values for predicates identified in predicate_map.
# @example value map for a single result
# {:uri=>[#<RDF::URI:0x3fcff54a829c URI:http://id.loc.gov/authorities/names/n2010043281>],
# :id=>[#<RDF::Literal:0x3fcff4a367b4("n2010043281")>],
# :label=>[#<RDF::Literal:0x3fcff54a9a98("Valli, Sabrina"@en)>],
# :altlabel=>[],
# :sort=>[#<RDF::Literal:0x3fcff54b4c18("2")>]}
def self.map_values(graph:, predicate_map:, subject_uri:, &block)
Qa.deprecation_warning(msg: "`Qa::LinkedData::Mapper::GraphMapperService` is deprecated; update to `Qa::LinkedData::Mapper::GraphPredicateMapperService`.")
Qa::LinkedData::Mapper::GraphPredicateMapperService.map_values(graph: graph, predicate_map: predicate_map, subject_uri: subject_uri, &block)
end
end
end
end
end
Version data entries
26 entries across 26 versions & 1 rubygems