Class: Aspire::Enumerator::LinkedDataURIEnumerator

Inherits:
JSONEnumerator show all
Defined in:
lib/aspire/enumerator/linked_data_uri_enumerator.rb

Overview

Enumerates the URI properties of a linked data API object

Instance Attribute Summary

Attributes inherited from JSONEnumerator

#hooks, #yielder

Instance Method Summary collapse

Methods inherited from JSONEnumerator

#[], #[]=, #array, #enumerate, #enumerator, #hash, #property

Constructor Details

#initialize(yielder = nil, **hooks) {|key, hash, index| ... } ⇒ LinkedDataURIEnumerator

Initialises a new LinkedDataAPIEnumerator instance

Parameters:

  • yielder (Enumerator::Yielder) (defaults to: nil) —

    the yielder from an Enumerator

  • hooks (Hash) —

    the callback hooks

Yields:

  • (key, hash, index) —

    passes each hash to the block

Yield Parameters:

  • key (Object) —

    the hash property name

  • hash (Hash) —

    the hash

  • index (Integer, nil) —

    the index of the hash in its parent array, or nil if not part of an array



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# File 'lib/aspire/enumerator/linked_data_uri_enumerator.rb', line 16

def initialize(yielder = nil, **hooks)
  super(yielder, **hooks)
  # Yield only hashes { type: "uri", value: "..." }
  self[:before_hash] = proc do |key, hash, index|
    if hash['type'] == 'uri' && hash['value'] && !hash['value'].empty?
      self.yielder << [key, hash, index]
      false
    else
      true
    end
  end
  # Do not yield properties
  self[:before_yield] = proc { |_key, _value, _index| false }
end