Class: RightScale::CloudApi::Parser::ReXml

Inherits:
Object
  • Object
show all
Defined in:
lib/base/parsers/rexml.rb

Class Method Summary collapse

Class Method Details

.parse(body, options = {}) ⇒ Object 



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# File 'lib/base/parsers/rexml.rb', line 31

def self.parse(body, options = {})
  parse_rexml_node ::REXML::Document::new(body).root
end

.parse_rexml_node(node) ⇒ Object 



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# File 'lib/base/parsers/rexml.rb', line 35

def self.parse_rexml_node(node)
  attributes = {}
  children   = {}
  text       = ''

  # Parse Attributes  
  node.attributes.each do |name, value|
    attributes["@#{name}"] = value
  end

  # Parse child nodes
  node.each_element do |child|
    if child.has_elements? || child.has_text?
      response = parse_rexml_node(child)
      unless children["#{child.name}"]
        # This is a first child - keep it as is
        children["#{child.name}"] = response
      else
        # This is a second+ child: make sure we put them in an Array
        children["#{child.name}"]  = [ children["#{child.name}"] ] unless children["#{child.name}"].is_a?(Array)
        children["#{child.name}"] << response
      end
    else
      # Don't lose blank elements
      children["#{child.name}"] = nil
    end
  end

  # Parse Text
  text << node.texts.join('')

  # Merge results
  if attributes._blank? && children._blank?
    result = text._blank? ? nil : text
  else
    result = attributes.merge(children)
    result.merge!("@@text" => text) unless text._blank?
  end

  # Build a root key when necessary
  result = { node.name => result } if node.parent.is_a?(REXML::Document)

  result
end