Class: ValidatorCache

Inherits:
Object
  • Object
show all
Defined in:
common/validator_cache.rb

Class Method Summary collapse

Class Method Details

.create_validator(jsonmodel, data) ⇒ Object 



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# File 'common/validator_cache.rb', line 3

def self.create_validator(jsonmodel, data)
  JSON::Validator.new(jsonmodel.schema,
                      data,
                      :errors_as_objects => true,
                      :record_errors => true)
end

.with_validator_for(jsonmodel, data) ⇒ Object 



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# File 'common/validator_cache.rb', line 10

def self.with_validator_for(jsonmodel, data)
  Thread.current[:validator_cache] ||= {}

  created = false
  if Thread.current[:validator_cache][jsonmodel]

    # If we have a cache entry but it's in use, just return a newly allocated
    # validator.
    if Thread.current[:validator_cache][jsonmodel][:in_use]
      return self.create_validator(jsonmodel, data)
    end

  else
    # If there's no entry, add one
    Thread.current[:validator_cache][jsonmodel] = {}
    Thread.current[:validator_cache][jsonmodel][:validator] = self.create_validator(jsonmodel, data)
    created = true
  end

  validator = Thread.current[:validator_cache][jsonmodel][:validator]

  # Reuse this existing validator by setting its data
  if !created
    validator.instance_eval do
      @data = data
    end
  end

  Thread.current[:validator_cache][jsonmodel][:in_use] = true

  begin
    yield(validator)
  ensure
    Thread.current[:validator_cache][jsonmodel][:in_use] = false
  end
end