Class: ODRL::Constraint

Inherits:
Base
  • Object
show all
Defined in:
lib/odrl/constraint.rb

Instance Attribute Summary collapse

Attributes inherited from Base

#baseURI, #creator, #description, #id, #issued, #label, #subject, #title, #type

Instance Method Summary collapse

Methods inherited from Base

baseURI, clear_repository, #get_writer, getuuid, repository, #repository, #triplify

Constructor Details

#initialize(rightOperand:, operator:, leftOperand:, uid: nil, rightOPerandReference: nil, dataType: nil, unit: nil, status: nil, type: CCONSTRAINT, **args) ⇒ Constraint

Returns a new instance of Constraint.



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# File 'lib/odrl/constraint.rb', line 7

def initialize(
  rightOperand:, operator:, leftOperand:, uid: nil,
  rightOPerandReference: nil,
  dataType: nil,
  unit: nil,
  status: nil,
  type: CCONSTRAINT,
  **args
)

  @uid = uid
  @uid ||= Base.baseURI + "#constraint_" + Base.getuuid
  super(uid: @uid, type: type, **args)

  @rightOperand = rightOperand
  raise "Constraints must haves a Right operand such as 'event' - I'm dead!" unless @rightOperand

  # if it is already a URI, then let it go
  # @rightOperand = "http://www.w3.org/ns/odrl/2/#{@rightOperand}" unless @rightOperand =~ %r{https?://}

  @leftOperand = leftOperand
  unless LEFTOPERANDS.include?(@leftOperand)
    warn "The selected leftOperand is not part of the default set... just sayin'"
  end
  unless @leftOperand
    raise "Constraints must haves a Left Operand such as 'http://some.event.org/on-now' - I'm dead!"
  end

  # if it is already a URI, then let it go
  @leftOperand = "http://www.w3.org/ns/odrl/2/#{@leftOperand}" unless @leftOperand =~ %r{https?://}

  @operator = operator
  raise "Constraints must haves an operator such as 'eq' - I'm dead!" unless @operator

  warn "The selected operator is not part of the default set... just sayin'" unless OPERATORS.include?(@operator)

  # if it is already a URI, then let it go
  @operator = "http://www.w3.org/ns/odrl/2/#{@operator}" unless @operator =~ %r{https?://}

  @rightOperandReference = rightOperandReference
  @dataType = dataType
  @unit = unit
  @status = status
end

Instance Attribute Details

#dataType ⇒ Object

Returns the value of attribute dataType.



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# File 'lib/odrl/constraint.rb', line 5

def dataType
  @dataType
end

#leftOperand ⇒ Object

Returns the value of attribute leftOperand.



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# File 'lib/odrl/constraint.rb', line 5

def leftOperand
  @leftOperand
end

#operator ⇒ Object

Returns the value of attribute operator.



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# File 'lib/odrl/constraint.rb', line 5

def operator
  @operator
end

#rightOperand ⇒ Object

Returns the value of attribute rightOperand.



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# File 'lib/odrl/constraint.rb', line 5

def rightOperand
  @rightOperand
end

#rightOperandReference ⇒ Object

Returns the value of attribute rightOperandReference.



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# File 'lib/odrl/constraint.rb', line 5

def rightOperandReference
  @rightOperandReference
end

#status ⇒ Object

Returns the value of attribute status.



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# File 'lib/odrl/constraint.rb', line 5

def status
  @status
end

#uid ⇒ Object

Returns the value of attribute uid.



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# File 'lib/odrl/constraint.rb', line 5

def uid
  @uid
end

#unit ⇒ Object

Returns the value of attribute unit.



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# File 'lib/odrl/constraint.rb', line 5

def unit
  @unit
end

Instance Method Details

#load_graph ⇒ Object 



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# File 'lib/odrl/constraint.rb', line 52

def load_graph
  super
  # TODO: This is bad DRY!!  Put the bulk of this method into the base object
  if rightOperand
    predicate = PRIGHT
    object = rightOperand
    subject = uid
    repo = repository
    triplify(subject, predicate, object, repo)
  end
  if leftOperand
    predicate = PLEFT
    object = leftOperand
    subject = uid
    repo = repository
    triplify(subject, predicate, object, repo)
  end
  if operator
    predicate = POPERATOR
    object = operator
    subject = uid
    repo = repository
    triplify(subject, predicate, object, repo)
  end
  if rightOperandReference
    predicate = POPERANDREFERENCE
    object = rightOperandReference
    subject = uid
    repo = repository
    triplify(subject, predicate, object, repo)
  end
  if dataType
    predicate = PDATATYPE
    object = dataType
    subject = uid
    repo = repository
    triplify(subject, predicate, object, repo)
  end
  if unit
    predicate = PUNIT
    object = unit
    subject = uid
    repo = repository
    triplify(subject, predicate, object, repo)
  end
  return unless status

  predicate = PSTATUS
  object = status
  subject = uid
  repo = repository
  triplify(subject, predicate, object, repo)
end

#serialize(format:) ⇒ Object 



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# File 'lib/odrl/constraint.rb', line 106

def serialize(format:)
  super
end