class Aws::Plugins::DynamoDBSimpleAttributes::ValueTranslator

@api private

Public Class Methods

apply(rules, mode, data) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 142
def self.apply(rules, mode, data)
  new(rules, mode).apply(data)
end
new(rules, mode) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 146
def initialize(rules, mode)
  @rules = rules
  @mode = mode
end

Public Instance Methods

apply(values) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 151
def apply(values)
  structure(@rules, values) if @rules
end

Private Instance Methods

list(ref, values) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 173
def list(ref, values)
  return values unless values.is_a?(Array)
  member_ref = ref.shape.member
  values.inject([]) do |list, value|
    list << translate(member_ref, value)
  end
end
map(ref, values) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 181
def map(ref, values)
  return values unless values.is_a?(Hash)
  value_ref = ref.shape.value
  values.each.with_object({}) do |(key, value), hash|
    hash[key] = translate(value_ref, value)
  end
end
structure(ref, values) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 157
def structure(ref, values)
  shape = ref.shape
  if values.is_a?(Struct)
    values.members.each do |key|
      values[key] = translate(shape.member(key), values[key])
    end
    values
  elsif values.is_a?(Hash)
    values.each.with_object({}) do |(key, value), hash|
      hash[key] = translate(shape.member(key), value)
    end
  else
    values
  end
end
translate(ref, value) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 189
def translate(ref, value)
  if ref.shape.name == 'AttributeValue'
    DynamoDB::AttributeValue.new.send(@mode, value)
  else
    translate_complex(ref, value)
  end
end
translate_complex(ref, value) click to toggle source
# File lib/aws-sdk-core/plugins/dynamodb_simple_attributes.rb, line 197
def translate_complex(ref, value)
  case ref.shape
  when StructureShape then structure(ref, value)
  when ListShape then list(ref, value)
  when MapShape then map(ref, value)
  else value
  end
end