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app/services/qa/linked_data/mapper/context_mapper_service.rb
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| # Provide service for mapping predicates to object values. | ||
| module Qa | ||
| module LinkedData | ||
| module Mapper | ||
| class ContextMapperService | ||
| class_attribute :graph_service | ||
| self.graph_service = Qa::LinkedData::GraphService | ||
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| class << self | ||
| # 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 context_map [Qa::LinkedData::Config::ContextMap] defines properties to extract from the graph to provide additional context | ||
| # @param subject_uri [RDF::URI] the subject within the graph for which the values are being extracted | ||
| # @return [<Hash<Symbol><Array<Object>>] mapped context values and information with hash of map key = array of object values for predicates identified in predicate_map. | ||
| # @example returned context map with one property defined | ||
| # [{"group" => "group label, | ||
| # "property" => "property label", | ||
| # "values" => ["value 1","value 2"], | ||
| # "selectable" => true, | ||
| # "drillable" => false}] | ||
| def map_context(graph:, context_map:, subject_uri:) | ||
| context = [] | ||
| context_map.properties.each do |property_map| | ||
| values = property_map.values(graph, subject_uri) | ||
| next if values.blank? | ||
| context << construct_context(context_map, property_map, values) | ||
| end | ||
| context | ||
| end | ||
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| private | ||
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| def construct_context(context_map, property_map, values) | ||
| property_info = {} | ||
| property_info["group"] = context_map.group_label(property_map.group_id) if property_map.group? # TODO: should be group label | ||
| property_info["property"] = property_map.label | ||
| property_info["values"] = values | ||
| property_info["selectable"] = property_map.selectable? | ||
| property_info["drillable"] = property_map.drillable? | ||
| property_info | ||
| end | ||
| end | ||
| end | ||
| end | ||
| end | ||
| end |
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123 changes: 123 additions & 0 deletions
123
spec/services/linked_data/mapper/context_mapper_service_spec.rb
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| require 'spec_helper' | ||
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| RSpec.describe Qa::LinkedData::Mapper::ContextMapperService do | ||
| subject { described_class.map_context(graph: graph, context_map: context_map, subject_uri: subject_uri) } | ||
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| let(:graph) { instance_double(RDF::Graph) } | ||
| let(:context_map) { instance_double(Qa::LinkedData::Config::ContextMap) } | ||
| let(:subject_uri) { instance_double(RDF::URI) } | ||
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| let(:context_properties) { [birth_date_property_map, death_date_property_map, occupation_property_map] } | ||
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| let(:birth_date_property_map) { instance_double(Qa::LinkedData::Config::ContextPropertyMap) } | ||
| let(:death_date_property_map) { instance_double(Qa::LinkedData::Config::ContextPropertyMap) } | ||
| let(:occupation_property_map) { instance_double(Qa::LinkedData::Config::ContextPropertyMap) } | ||
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| let(:group_id) { 'dates' } | ||
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| let(:birth_date_values) { ['10/15/1943'] } | ||
| let(:death_date_values) { ['12/17/2018'] } | ||
| let(:occupation_values) { ['Actress', 'Director', 'Producer'] } | ||
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| before do | ||
| allow(context_map).to receive(:properties).and_return(context_properties) | ||
| allow(context_map).to receive(:group_label).with('dates').and_return('Dates') | ||
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| allow(birth_date_property_map).to receive(:label).and_return('Birth') | ||
| allow(birth_date_property_map).to receive(:values).with(graph, subject_uri).and_return(birth_date_values) | ||
| allow(birth_date_property_map).to receive(:group?).and_return(false) | ||
| allow(birth_date_property_map).to receive(:selectable?).and_return(false) | ||
| allow(birth_date_property_map).to receive(:drillable?).and_return(false) | ||
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| allow(death_date_property_map).to receive(:label).and_return('Death') | ||
| allow(death_date_property_map).to receive(:values).with(graph, subject_uri).and_return(death_date_values) | ||
| allow(death_date_property_map).to receive(:group?).and_return(false) | ||
| allow(death_date_property_map).to receive(:selectable?).and_return(false) | ||
| allow(death_date_property_map).to receive(:drillable?).and_return(false) | ||
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| allow(occupation_property_map).to receive(:label).and_return('Occupation') | ||
| allow(occupation_property_map).to receive(:values).with(graph, subject_uri).and_return(occupation_values) | ||
| allow(occupation_property_map).to receive(:group?).and_return(false) | ||
| allow(occupation_property_map).to receive(:selectable?).and_return(false) | ||
| allow(occupation_property_map).to receive(:drillable?).and_return(false) | ||
| end | ||
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| describe '.map_context' do | ||
| it 'sets the property labels from the property map' do | ||
| find_property_to_test(subject, 'Birth') | ||
| find_property_to_test(subject, 'Death') | ||
| find_property_to_test(subject, 'Occupation') | ||
| expect(subject.size).to be 3 | ||
| end | ||
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| it 'sets the property values from the graph' do | ||
| result = find_property_to_test(subject, 'Birth') | ||
| expect(result['values']).to match_array birth_date_values | ||
| result = find_property_to_test(subject, 'Death') | ||
| expect(result['values']).to match_array death_date_values | ||
| result = find_property_to_test(subject, 'Occupation') | ||
| expect(result['values']).to match_array occupation_values | ||
| end | ||
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| context 'when group? is false' do | ||
| before { allow(birth_date_property_map).to receive(:group?).and_return(false) } | ||
| it 'does not include group in results' do | ||
| result = find_property_to_test(subject, 'Birth') | ||
| expect(result.key?('group')).to be false | ||
| end | ||
| end | ||
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| context 'when group? is true' do | ||
| before do | ||
| allow(birth_date_property_map).to receive(:group?).and_return(true) | ||
| allow(birth_date_property_map).to receive(:group_id).and_return('dates') | ||
| allow(context_map).to receive(:group_label).with('dates').and_return('Dates') | ||
| end | ||
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| it 'includes group in results' do | ||
| result = find_property_to_test(subject, 'Birth') | ||
| expect(result['group']).to eq 'Dates' | ||
| end | ||
| end | ||
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| context 'when drillable? is false' do | ||
| before { allow(death_date_property_map).to receive(:drillable?).and_return(false) } | ||
| it 'includes drillable set to false' do | ||
| result = find_property_to_test(subject, 'Death') | ||
| expect(result['drillable']).to be false | ||
| end | ||
| end | ||
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| context 'when drillable? is true' do | ||
| before { allow(death_date_property_map).to receive(:drillable?).and_return(true) } | ||
| it 'includes drillable set to true' do | ||
| result = find_property_to_test(subject, 'Death') | ||
| expect(result['drillable']).to be true | ||
| end | ||
| end | ||
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| context 'when selectable? is false' do | ||
| before { allow(occupation_property_map).to receive(:selectable?).and_return(false) } | ||
| it 'includes selectable set to false' do | ||
| result = find_property_to_test(subject, 'Occupation') | ||
| expect(result['selectable']).to be false | ||
| end | ||
| end | ||
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| context 'when selectable? is true' do | ||
| before { allow(occupation_property_map).to receive(:selectable?).and_return(true) } | ||
| it 'includes selectable set to true' do | ||
| result = find_property_to_test(subject, 'Occupation') | ||
| expect(result['selectable']).to be true | ||
| end | ||
| end | ||
| end | ||
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| def find_property_to_test(results, label) | ||
| results.each do |r| | ||
| next unless r['property'] == label | ||
| return r | ||
| end | ||
| raise "property (#{label}) to test not found" | ||
| end | ||
| end |
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