Class: XTJ::Handlers::XMLHandler

Inherits:
Object
  • Object
show all
Includes:
REXML::SAX2Listener, Tags
Defined in:
lib/xtj/handlers/xml_handler.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ XMLHandler

Returns a new instance of XMLHandler.



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# File 'lib/xtj/handlers/xml_handler.rb', line 13

def initialize
  @xml_hash = {}
  @stack = []
end

Instance Attribute Details

#xml_hash ⇒ Object (readonly)

Returns the value of attribute xml_hash.



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# File 'lib/xtj/handlers/xml_handler.rb', line 11

def xml_hash
  @xml_hash
end

Instance Method Details

#characters(text) ⇒ Object

Raises:

  • (REXML::ParseException) 


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# File 'lib/xtj/handlers/xml_handler.rb', line 37

def characters(text)
  return if text.strip.empty?
  raise REXML::ParseException, 'Invalid XML' if @stack.empty?

  element = @stack.shift
  element.attributes[:@text] = text
  @stack.prepend(element)
end

#end_element(_uri, _localname, _qname) ⇒ Object 



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# File 'lib/xtj/handlers/xml_handler.rb', line 25

def end_element(_uri, _localname, _qname)
  if @stack.length > 1
    child = @stack.shift
    parent = @stack.shift
    parent.add_to_attributes(child.tag, child.attributes)
    @stack.prepend(parent)
  else
    element = @stack.shift
    @xml_hash[element.tag] = element.attributes
  end
end

#start_element(_uri, _localname, qname, attributes) ⇒ Object 



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# File 'lib/xtj/handlers/xml_handler.rb', line 18

def start_element(_uri, _localname, qname, attributes)
  prefixed_attributes = attributes
                        .transform_keys { |key| "_#{key}".to_sym }
  element = XMLTag.new(tag: qname.to_sym, attributes: prefixed_attributes)
  @stack.prepend(element)
end