Class: Eatr::Xml::Document

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
ParseValue
Defined in:
lib/eatr/xml/document.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ParseValue

#parse_value

Constructor Details

#initialize(schema_path) ⇒ Document

Returns a new instance of Document.



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# File 'lib/eatr/xml/document.rb', line 17

def initialize(schema_path)
  @schema = Schema.new(YAML.load(File.read(schema_path)))
end

Instance Attribute Details

#schema ⇒ Object (readonly)

Returns the value of attribute schema.



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# File 'lib/eatr/xml/document.rb', line 12

def schema
  @schema
end

Instance Method Details

#parse(xml_document_path) ⇒ Object 



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# File 'lib/eatr/xml/document.rb', line 21

def parse(xml_document_path)
  @namespaces = {}

  if File.exists?(xml_document_path)
    file = File.open(xml_document_path)
  else
    file = StringIO.new(xml_document_path)
  end

  doc = Nokogiri::XML(file) do |config|
    config.strict.nonet
  end

  if @schema.remove_namespaces?
    doc.remove_namespaces!
    @namespaces = {}
  else
    @namespaces = doc.collect_namespaces
  end

  cardinality = @schema.fields.inject(1) do |memo, field|
    if field.node?
      memo * [doc.xpath(field.xpath, @namespaces).count, 1].max
    else
      memo
    end
  end

  objects = []

  cardinality.times do |n|
    objects << @schema.to_struct.new
  end

  @schema.fields.each do |field|
    objects = set_field(objects, doc, field)
  end

  objects
end