Class: Blumquist::JSONPointer

Inherits:
Object
  • Object
show all
Defined in:
lib/blumquist/json_pointer.rb

Constant Summary collapse

DOCUMENT_ROOT_IDENTIFIER = 
'#'.freeze
DOCUMENT_ADDRESS_IDENTIFIER = 
'.json'.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uri, document: nil) ⇒ JSONPointer

Returns a new instance of JSONPointer.



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# File 'lib/blumquist/json_pointer.rb', line 21

def initialize(uri, document: nil)
  @uri = uri
  validate_uri!
  @document = document
end

Instance Attribute Details

#uri ⇒ Object (readonly)

Returns the value of attribute uri.



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# File 'lib/blumquist/json_pointer.rb', line 19

def uri
  @uri
end

Instance Method Details

#value ⇒ Object

Raises:



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# File 'lib/blumquist/json_pointer.rb', line 27

def value
  result = keys.any? ? document&.dig(*keys) : document

  raise(Errors::InvalidPointer, pointer: uri, document: document) if result.nil?

  result
end