47 lines
1.3 KiB
Ruby
47 lines
1.3 KiB
Ruby
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#!/usr/bin/ruby
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=begin
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--------------------------------------------------------------------------------
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--------------------------------------------------------------------------------
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=end
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require 'rubygems'
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require 'rdf'
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require 'rdf/rdfxml'
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require 'rdf/ntriples'
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require 'rdf/n3'
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include RDF
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DISPLAY_NAME_URI = RDF::URI.new("http://vitro.mannlib.cornell.edu/ns/vitro/ApplicationConfiguration#displayName")
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class UsageError < StandardError; end
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class FilterError < StandardError; end
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class DisplayNameCommon
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# ------------------------------------------------------------------------------------
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private
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# ------------------------------------------------------------------------------------
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# ------------------------------------------------------------------------------------
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public
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# ------------------------------------------------------------------------------------
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def self.load_filter(filter_file)
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return lambda{|s| true} unless filter_file
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return eval(IO.read(filter_file))
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rescue
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raise FilterError.new($!.message)
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end
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def initialize(rdf_file, &filter)
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@filter = filter.nil? ? lambda{true} : filter
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@graph = Graph.load(rdf_file)
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end
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def process(query, &filter)
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solutions = query.execute(@graph)
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solutions.filter!(&filter)
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solutions.order(:prop)
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end
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end
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