Class: Goods::XML::Validator

Inherits:
Object
  • Object
show all
Defined in:
lib/goods/xml/validator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Validator

Returns a new instance of Validator.



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# File 'lib/goods/xml/validator.rb', line 8

def initialize
  @error = nil
end

Instance Attribute Details

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'lib/goods/xml/validator.rb', line 6

def error
  @error
end

Instance Method Details

#valid?(xml) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/goods/xml/validator.rb', line 12

def valid?(xml)
  validate(xml)
  error.nil?
end

#validate(xml) ⇒ Object 



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# File 'lib/goods/xml/validator.rb', line 17

def validate(xml)
  @error = nil
  document = LibXML::XML::Document.string(xml)

  # Should silence STDERR, because libxml2 spews validation error
  # to standard error stream
  silence_stream(STDERR) do
    # Catch first exception due to bug in libxml - it throws
    # 'the model is not determenistic' error. The second validation runs
    # just fine and gives the real error.
    begin
      document.validate(dtd)
    rescue LibXML::XML::Error => e
      #nothing
    end

    begin
      document.validate(dtd)
    rescue LibXML::XML::Error => e
      @error = e.to_s
    end
  end
end