Class: Inferno::DSL::FHIRValidation::Validator

Inherits:
Object
  • Object
show all
Defined in:
lib/inferno/dsl/fhir_validation.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#requirements ⇒ Object (readonly)

Returns the value of attribute requirements.



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# File 'lib/inferno/dsl/fhir_validation.rb', line 45

def requirements
  @requirements
end

Instance Method Details

#exclude_message {|message| ... } ⇒ Object

Filter out unwanted validation messages. Any messages for which the block evalutates to a truthy value will be excluded.

Examples:

validator do
  exclude_message { |message| message.type == 'info' }
end

Yield Parameters:



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# File 'lib/inferno/dsl/fhir_validation.rb', line 110

def exclude_message(&block)
  @exclude_message = block if block_given?
  @exclude_message
end

#perform_additional_validation {|resource, profile_url| ... } ⇒ Object

Perform validation steps in addition to FHIR validation.

Examples:

perform_additional_validation do |resource, profile_url|
  if something_is_wrong
    { type: 'error', message: 'something is wrong' }
  else
    { type: 'info', message: 'everything is ok' }
  end
end

Yield Parameters:

  • resource (FHIR::Model) —

    the resource being validated

  • profile_url (String) —

    the profile the resource is being validated against

Yield Returns:

  • (Array<Hash<Symbol, String>>, Hash<Symbol, String>) —

    The block should return a Hash or an Array of Hashes if any validation messages should be added. The Hash must contain two keys: :type and :message. :type can have a value of 'info', 'warning', or 'error'. A type of 'error' means the resource is invalid. :message contains the message string itself.



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# File 'lib/inferno/dsl/fhir_validation.rb', line 91

def perform_additional_validation(&block)
  additional_validations << block
end

#resource_is_valid?(resource, profile_url, runnable) ⇒ Boolean

Returns:

  • (Boolean)

See Also:



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# File 'lib/inferno/dsl/fhir_validation.rb', line 116

def resource_is_valid?(resource, profile_url, runnable)
  profile_url ||= FHIR::Definitions.resource_definition(resource.resourceType).url

  begin
    response = call_validator(resource, profile_url)
  rescue StandardError => e
    # This could be a complete failure to connect (validator isn't running)
    # or a timeout (validator took too long to respond).
    runnable.add_message('error', e.message)
    raise Inferno::Exceptions::ErrorInValidatorException, "Unable to connect to validator at #{url}."
  end
  outcome = operation_outcome_from_validator_response(response.body, runnable)

  message_hashes = message_hashes_from_outcome(outcome, resource, profile_url)

  message_hashes
    .each { |message_hash| runnable.add_message(message_hash[:type], message_hash[:message]) }

  unless response.status == 200
    raise Inferno::Exceptions::ErrorInValidatorException,
          'Error occurred in the validator. Review Messages tab or validator service logs for more information.'
  end

  message_hashes
    .none? { |message_hash| message_hash[:type] == 'error' }
rescue Inferno::Exceptions::ErrorInValidatorException
  raise
rescue StandardError => e
  runnable.add_message('error', e.message)
  raise Inferno::Exceptions::ErrorInValidatorException,
        'Error occurred in the validator. Review Messages tab or validator service logs for more information.'
end

#url(validator_url = nil) ⇒ Object

Set the url of the validator service

Parameters:

  • validator_url (String) (defaults to: nil) 


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# File 'lib/inferno/dsl/fhir_validation.rb', line 61

def url(validator_url = nil)
  @url = validator_url if validator_url
  @url ||= default_validator_url
  @url
end

#validate(resource, profile_url) ⇒ String

Post a resource to the validation service for validating.

Parameters:

Returns:

  • (String) —

    the body of the validation response



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# File 'lib/inferno/dsl/fhir_validation.rb', line 203

def validate(resource, profile_url)
  call_validator(resource, profile_url).body
end