Class: BELParser::Script::State::NamespaceDefinition

Inherits:
Object
  • Object
show all
Extended by:
BELParser::Script::StateFunction
Defined in:
lib/bel_parser/script/state/namespace_definition.rb

Constant Summary collapse

TARGET_NODE = 
BELParser::Parsers::AST::NamespaceDefinition

Class Method Summary collapse

Methods included from BELParser::Script::StateFunction

consume

Class Method Details

.consume(ast_node, script_context) ⇒ Object 



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# File 'lib/bel_parser/script/state/namespace_definition.rb', line 16

def self.consume(ast_node, script_context)
  return nil unless ast_node.is_a?(TARGET_NODE)
  uri_reader = script_context[:uri_reader]
  url_reader = script_context[:url_reader]

  keyword, domain = ast_node.children
  keyword_s       = keyword.identifier.string_literal

  case
  when domain.uri?
    uri     = domain.child.string.string_literal
    dataset = uri_reader.retrieve_resource(uri)
    script_context[:namespace_definitions] ||= Concurrent::Hash.new
    script_context[:namespace_definitions][keyword_s] =
      BELParser::Expression::Model::Namespace.new(
        keyword_s,
        uri,
        nil)
  when domain.url?
    ApplyResourceURI.new.process(ast_node)
    if ast_node.uri
      dataset = uri_reader.retrieve_resource(ast_node.uri)
      script_context[:namespace_definitions] ||= Concurrent::Hash.new
      script_context[:namespace_definitions][keyword_s] =
        BELParser::Expression::Model::Namespace.new(
          keyword_s,
          ast_node.uri,
          domain.child.string.string_literal)
    else
      url     = domain.child.string.string_literal
      dataset = url_reader.retrieve_resource(url)
      script_context[:namespace_definitions] ||= Concurrent::Hash.new
      script_context[:namespace_definitions][keyword_s] =
        BELParser::Expression::Model::Namespace.new(
          keyword_s,
          nil,
          url)
    end
  end
end