Use custom document loader for oa.jsonld

lib/active_annotations.rb

@@ -1,5 +1,6 @@
 require "active_annotations/version"
 require "active_annotations/rdf_annotation"
+require "active_annotations/document_loader"
 require "active_annotations/engine"
 
 module ActiveAnnotations

lib/active_annotations/document_loader.rb

@@ -0,0 +1,20 @@
+module ActiveAnnotations
+  module DocumentLoader
+    class << self
+      def local_document_loader(url, options={}, &block)
+        if RDF::URI(url) == RDF::URI(RDFAnnotation::CONTEXT_URI)
+          remote_document = JSON::LD::API::RemoteDocument.new(url, File.read(File.expand_path('../oa.jsonld',__FILE__)))
+          block_given? ? yield(remote_document) : remote_document
+        else
+          # :nocov:
+          JSON::LD::API.documentLoader(url, options, &block)
+          # :nocov:
+        end
+      end
+
+      def document_loader
+        ENV['NO_RDF_CACHE'] == '1' ? JSON::LD::API.method(:documentLoader) : self.method(:local_document_loader)
+      end
+    end
+  end
+end