Class: Membrane::Schema::Record

Inherits:
Base
  • Object
show all
Defined in:
lib/membrane/schema/record.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#deparse

Constructor Details

#initialize(schemas, optional_keys = []) ⇒ Record

Returns a new instance of Record.



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# File 'lib/membrane/schema/record.rb', line 15

def initialize(schemas, optional_keys = [])
  @optional_keys = Set.new(optional_keys)
  @schemas = schemas
end

Instance Attribute Details

#optional_keys ⇒ Object (readonly)

Returns the value of attribute optional_keys.



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# File 'lib/membrane/schema/record.rb', line 13

def optional_keys
  @optional_keys
end

#schemas ⇒ Object (readonly)

Returns the value of attribute schemas.



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# File 'lib/membrane/schema/record.rb', line 12

def schemas
  @schemas
end

Instance Method Details

#validate(object) ⇒ Object 



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# File 'lib/membrane/schema/record.rb', line 20

def validate(object)
  unless object.kind_of?(Hash)
    emsg = "Expected instance of Hash, given instance of #{object.class}"
    raise Membrane::SchemaValidationError.new(emsg)
  end

  key_errors = {}

  @schemas.each do |k, schema|
    if object.has_key?(k)
      begin
        schema.validate(object[k])
      rescue Membrane::SchemaValidationError => e
        key_errors[k] = e.to_s
      end
    elsif !@optional_keys.include?(k)
      key_errors[k] = "Missing key"
    end
  end

  if key_errors.size > 0
    emsg = "{ " + key_errors.map { |k, e| "#{k} => #{e}" }.join(", ") + " }"
    raise Membrane::SchemaValidationError.new(emsg)
  end
end