Class: XmlSchemaMapper::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/xml_schema_mapper/parser.rb

Instance Method Summary collapse

Constructor Details

#initialize(klass) ⇒ Parser

Returns a new instance of Parser.



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# File 'lib/xml_schema_mapper/parser.rb', line 3

def initialize(klass)
  @klass = klass
  @module = resolve_module
end

Instance Method Details

#content_for(node) ⇒ Object 



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# File 'lib/xml_schema_mapper/parser.rb', line 43

def content_for(node)
  node.content if node
end

#document(xml) ⇒ Object 



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# File 'lib/xml_schema_mapper/parser.rb', line 63

def document(xml)
  return xml if xml.is_a?(Nokogiri::XML::Node)
  Nokogiri::XML(xml).root
end

#get_node_by_xpath(element, xml) ⇒ Object 



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# File 'lib/xml_schema_mapper/parser.rb', line 47

def get_node_by_xpath(element, xml)
  if element.namespace
    xml.at_xpath("./foo:#{element.name}", { 'foo' => element.namespace })
  else
    xml.at_xpath("./#{element.name}")
  end
end

#get_nodes_by_xpath(element, xml) ⇒ Object 



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# File 'lib/xml_schema_mapper/parser.rb', line 55

def get_nodes_by_xpath(element, xml)
  if element.namespace
    xml.xpath("./foo:#{element.name}", { 'foo' => element.namespace })
  else
    xml.xpath("./#{element.name}")
  end
end

#parse(xml) ⇒ Object 



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# File 'lib/xml_schema_mapper/parser.rb', line 8

def parse(xml)
  instance = @klass.new
  xml = document(xml)
  @klass.elements.each do |e|
    if e.array?
      write_array_element(e, instance, xml)
    else
      write_element(e, instance, xml)
    end
  end
  instance
end

#write_array_element(element, instance, xml) ⇒ Object 



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# File 'lib/xml_schema_mapper/parser.rb', line 30

def write_array_element(element, instance, xml)
  instance.send(element.writer, [])
  if element.simple?
    get_nodes_by_xpath(element, xml).each do |node|
      instance.send(element.reader) << content_for(node) if instance.respond_to?(element.writer)
    end
  else
    get_nodes_by_xpath(element, xml).each do |node|
      instance.send(element.reader) << resolve_element_parser(element).parse(node) if instance.respond_to?(element.writer)
    end
  end
end

#write_element(element, instance, xml) ⇒ Object 



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# File 'lib/xml_schema_mapper/parser.rb', line 21

def write_element(element, instance, xml)
  node = get_node_by_xpath(element, xml)
  if element.simple?
    instance.send(element.writer, content_for(node)) if instance.respond_to?(element.writer)
  else
    instance.send(element.writer, resolve_element_parser(element).parse(node)) if instance.respond_to?(element.writer)
  end
end