Class: Model3mf

Inherits:
Object
  • Object
show all
Defined in:
lib/ruby3mf/model3mf.rb

Class Method Summary collapse

Class Method Details

.extract_paths(value) ⇒ Object 



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# File 'lib/ruby3mf/model3mf.rb', line 3

def self.extract_paths(value)
  if value.is_a? Array
    value.map { |v| extract_paths(v) }
  else
    if value.is_a? Hash
      value[:path]
    else
      nil
    end
  end
end

.parse(zip_entry, relationships) ⇒ Object 



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# File 'lib/ruby3mf/model3mf.rb', line 15

def self.parse(zip_entry, relationships)
  model_hash = {}
  Log3mf.context "parsing model" do |l|
    begin
      # parse model
      doc = Nokogiri::XML(zip_entry.get_input_stream) do |config|
        config.strict.nonet.noblanks
      end

      l.info "We Found a Model, and it's XML!"
      model_hash = Hash.from_xml(doc)
    rescue Nokogiri::XML::SyntaxError => e
      l.fatal_error "Model file invalid XML. Exception #{e}"
      doc.errors.each { |error| l.error error }
    end

    l.context "verifying 3D payload required resources" do |l|
      # find all resources (that are not the object) in model_hash

      required_resources = []

      model_hash[:model][:resources].each do |key, value|
        required_resources << extract_paths(value)
      end

      required_resources.flatten!
      required_resources.compact!

      # for each, ensure that they exist in @relationships

      relationship_resources = relationships.map { |relationship| relationship[:target] }

      missing_resources = (required_resources - relationship_resources)
      if missing_resources.empty?
        l.info "All model required resources are defined in .rels relationship files."
      else
        missing_resources.each { |mr|
          l.error "Missing required resource: #{mr} Resource referenced in model, but not in .rels relationship file", page: 10
        }
      end

    end
  end
  model_hash
end