class Aws::ErrorHandler

def build_error(context, code, message, data)
  errors_module = context.client.class.errors_module
  errors_module.error_class(code).new(context, message, data)
end

def error(context)
  body = context.http_response.body_contents
  # This is not correct per protocol tests. Some headers will determine the error code.
  # If the body is empty, there is still potentially an error code from the header, but
  # we are making a generic http status error instead. In a new major version, we should
  # always try to extract header, and during extraction, check headers and body.
  if body.empty?
    code, message, data = http_status_error(context)
  else
    code, message, data = extract_error(body, context)
  end
  build_error(context, code, message, data)
end

def http_status_error(context)
  [http_status_error_code(context), '', EmptyStructure.new]
end

def http_status_error_code(context)
  status_code = context.http_response.status_code
  {
    302 => 'MovedTemporarily',
    304 => 'NotModified',
    400 => 'BadRequest',
    403 => 'Forbidden',
    404 => 'NotFound',
    412 => 'PreconditionFailed',
    413 => 'RequestEntityTooLarge',
  }[status_code] || "Http#{status_code}Error"
end