Module: HealthDataStandards::Validate::Schematron::JavaProcessor

Included in:
Validator
Defined in:
lib/health-data-standards/validate/schematron/java_processor.rb

Defined Under Namespace

Classes: HdsUrlResolver

Constant Summary collapse

ISO_SCHEMATRON2 = 
File.join(DIR, 'resources/schematron/iso-schematron-xslt2/iso_svrl_for_xslt2.xsl')

Instance Method Summary collapse

Instance Method Details

#build_transformer(xslt, input_file, url = false) ⇒ Object 



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# File 'lib/health-data-standards/validate/schematron/java_processor.rb', line 81

def build_transformer(xslt, input_file, url=false)
  factory = TransformerFactory.newInstance(TRANSFORMER_FACTORY_IMPL, nil)
  factory.uri_resolver = HdsUrlResolver.new(@schematron_file) if url
  transformer = factory.new_transformer(StreamSource.new(xslt))
  sw = StringWriter.new
  output = StreamResult.new(sw)
  transformer.transform(input_file, output)
  sw.to_s
end

#get_document_j(doc) ⇒ Object 



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# File 'lib/health-data-standards/validate/schematron/java_processor.rb', line 48

def get_document_j(doc)
  case doc
  when File
    java.io.File.new(doc.path)
  else 
    StringReader.new(doc.to_s)
  end
end

#get_errors(document) ⇒ Object 



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# File 'lib/health-data-standards/validate/schematron/java_processor.rb', line 42

def get_errors(document)
  document_j = get_document_j(document)
  output = build_transformer(StringReader.new(processor), StreamSource.new(document_j), true)
  Nokogiri::XML(output)
end

#processor ⇒ Object 



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# File 'lib/health-data-standards/validate/schematron/java_processor.rb', line 57

def processor
  @processor ||= build_transformer(java.io.File.new(ISO_SCHEMATRON2), schematron_file)
end

#schematron_file ⇒ Object 



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# File 'lib/health-data-standards/validate/schematron/java_processor.rb', line 61

def schematron_file
  # this allows us to run the validation utility app in jBoss/TorqueBox
  # for some reason it breaks the first time you call DocumentBuilderFactory,
  # so the solution is to catch the error and retry
  # TODO: pull this out when the above is no longer the case.
  begin
    dbf = DocumentBuilderFactory.new_instance
  rescue Exception => ex
    retry
  end
  dbf.setIgnoringElementContentWhitespace(true);
  db = dbf.new_document_builder
  document = db.parse(java.io.File.new(@schematron_file))
  
  root = document.document_element
  phase = root.set_attribute("defaultPhase", "errors")

  DOMSource.new(root)
end