Class: ResoTransport::MetadataParser

Inherits:
Object
  • Object
show all
Includes:
REXML::StreamListener
Defined in:
lib/reso_transport/metadata_parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MetadataParser

Returns a new instance of MetadataParser.



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# File 'lib/reso_transport/metadata_parser.rb', line 7

def initialize
  @schemas = []
  @entity_sets = []
  @entity_types = []
  @enumerations = []

  @current_entity_type = nil
  @current_complex_type = nil
  @current_enum_type = nil
  @current_member = nil

  @datasystem = nil
end

Instance Attribute Details

#entity_sets ⇒ Object (readonly)

Returns the value of attribute entity_sets.



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# File 'lib/reso_transport/metadata_parser.rb', line 5

def entity_sets
  @entity_sets
end

#enumerations ⇒ Object (readonly)

Returns the value of attribute enumerations.



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# File 'lib/reso_transport/metadata_parser.rb', line 5

def enumerations
  @enumerations
end

#schemas ⇒ Object (readonly)

Returns the value of attribute schemas.



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# File 'lib/reso_transport/metadata_parser.rb', line 5

def schemas
  @schemas
end

Instance Method Details

#datasystem? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/reso_transport/metadata_parser.rb', line 111

def datasystem?
  return @datasystem unless @datasystem.nil?

  @datasystem = @schemas.any? { |s| s.entity_types.any? { |t| t.name == 'DataSystem' } }
end

#finalize ⇒ Object 



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# File 'lib/reso_transport/metadata_parser.rb', line 27

def finalize
  schemas.each do |s|
    s.entity_types.each do |et|
      et.properties.each do |p|
        p.finalize_type(self)
      end

      et.navigation_properties.each do |p|
        p.finalize_type(self)
      end
    end

    s.complex_types.each do |et|
      et.properties.each do |p|
        p.finalize_type(self)
      end
    end
  end
end

#parse(doc) ⇒ Object 



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# File 'lib/reso_transport/metadata_parser.rb', line 21

def parse(doc)
  REXML::Document.parse_stream(doc, self)
  finalize
  self
end

#tag_end(name) ⇒ Object 



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# File 'lib/reso_transport/metadata_parser.rb', line 94

def tag_end(name)
  case name
  when 'EntityType'
    @current_entity_type.schema = @schemas.last.namespace
    @schemas.last.entity_types << @current_entity_type
  when 'ComplexType'
    @current_complex_type.schema = @schemas.last.namespace
    @schemas.last.complex_types << @current_complex_type
  when 'EnumType'
    @enumerations << @current_enum_type
    @current_enum_type = nil
  when 'Member'
    @current_enum_type.members << @current_member
    @current_member = nil
  end
end

#tag_start(name, args) ⇒ Object

Schema ->

EnumType ->
  Members ->
    Annotation
EntityType ->
  Key
  Properties ->
    enumerations



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# File 'lib/reso_transport/metadata_parser.rb', line 57

def tag_start(name, args)
  case name
  when 'Schema'
    @schemas << ResoTransport::Schema.from_stream(args)
  when 'EntitySet'
    @entity_sets << ResoTransport::EntitySet.from_stream(args)
  when 'EntityType'
    @current_entity_type = ResoTransport::EntityType.from_stream(args)
  when 'ComplexType'
    @current_complex_type = ResoTransport::EntityType.from_stream(args)
  when 'PropertyRef'
    @current_entity_type.primary_key = args['Name']
  when 'Property'
    if @current_entity_type
      @current_entity_type.properties << ResoTransport::Property.from_stream(args.merge(schema: @schemas.last))
    end
    if @current_complex_type
      @current_complex_type.properties << ResoTransport::Property.from_stream(args.merge(schema: @schemas.last))
    end
  when 'NavigationProperty'
    @current_entity_type.navigation_properties << ResoTransport::Property.from_stream(args)
  when 'EnumType'
    @current_enum_type = ResoTransport::Enum.from_stream(args.merge(schema: @schemas.last))
  when 'Member'
    @current_member = ResoTransport::Member.from_stream(args)
  when 'Annotation'
    if @current_enum_type && @current_member
      @current_member.annotation = args['String']
    elsif @current_entity_type || @current_complex_type
      # raise args.inspect
    end
  end
rescue StandardError => e
  puts e.inspect
  puts "Error processing Tag: #{[name, args].inspect}"
end