geoblacklight.rb in geo_combine-0.2.0

- old
+ new

@@ -1,20 +1,25 @@
+require 'open-uri'
+
 module GeoCombine
   class Geoblacklight
     include GeoCombine::Formats
     include GeoCombine::Subjects
     include GeoCombine::GeometryTypes
 
     attr_reader :metadata
 
+    GEOBLACKLIGHT_VERSION = 'v1.1.0'
+
     ##
     # Initializes a GeoBlacklight object
     # @param [String] metadata be a valid JSON string document in
     # GeoBlacklight-Schema
     # @param [Hash] fields enhancements to metadata that are merged with @metadata
     def initialize(metadata, fields = {})
       @metadata = JSON.parse(metadata).merge(fields)
+      @schema = nil
     end
 
     ##
     # Calls metadata enhancement methods for each key, value pair in the
     # metadata hash
@@ -37,11 +42,25 @@
 
     ##
     # Validates a GeoBlacklight-Schema json document
     # @return [Boolean]
     def valid?
-      schema = JSON.parse(File.read(File.join(File.dirname(__FILE__), '../schema/geoblacklight-schema.json')))
-      JSON::Validator.validate!(schema, to_json, validate_schema: true)
+      @schema ||= JSON.parse(open("https://raw.githubusercontent.com/geoblacklight/geoblacklight/#{GEOBLACKLIGHT_VERSION}/schema/geoblacklight-schema.json").read)
+      JSON::Validator.validate!(@schema, to_json, fragment: '#/properties/layer') && dct_references_validate!
+    end
+
+    ##
+    # Validate dct_references_s
+    # @return [Boolean]
+    def dct_references_validate!
+      return true unless metadata.key?('dct_references_s')
+      begin
+        ref = JSON.parse(metadata['dct_references_s'])
+        raise GeoCombine::Exceptions::InvalidDCTReferences, 'dct_references must be parsed to a Hash' unless ref.is_a?(Hash)
+        true
+      rescue JSON::ParserError => e
+        raise e, "Invalid JSON in dct_references_s: #{e.message}"
+      end
     end
 
     private
 
     ##