Module: Avromatic::Model::Types::TypeFactory

Extended by:
TypeFactory
Included in:
TypeFactory
Defined in:
lib/avromatic/model/types/type_factory.rb

Constant Summary collapse

SINGLETON_TYPES = 
{
  'date' => Avromatic::Model::Types::DateType.new,
  'timestamp-micros' => Avromatic::Model::Types::TimestampMicrosType.new,
  'timestamp-millis' => Avromatic::Model::Types::TimestampMillisType.new,
  'string' => Avromatic::Model::Types::StringType.new,
  'bytes' => Avromatic::Model::Types::StringType.new,
  'boolean' => Avromatic::Model::Types::BooleanType.new,
  'int' => Avromatic::Model::Types::IntegerType.new,
  'long' => Avromatic::Model::Types::BigIntType.new,
  'float' => Avromatic::Model::Types::FloatType.new,
  'double' => Avromatic::Model::Types::FloatType.new,
  'null' => Avromatic::Model::Types::NullType.new
}.deep_freeze

Instance Method Summary collapse

Instance Method Details

#create(schema:, nested_models:, use_custom_types: true) ⇒ Object 



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# File 'lib/avromatic/model/types/type_factory.rb', line 41

def create(schema:, nested_models:, use_custom_types: true)
  if use_custom_types && Avromatic.custom_type_registry.registered?(schema)
    custom_type_configuration = Avromatic.custom_type_registry.fetch(schema)
    default_type = create(
      schema: schema,
      nested_models: nested_models,
      use_custom_types: false
    )
    Avromatic::Model::Types::CustomType.new(
      custom_type_configuration: custom_type_configuration,
      default_type: default_type
    )
  elsif schema.respond_to?(:logical_type) && SINGLETON_TYPES.include?(schema.logical_type)
    SINGLETON_TYPES.fetch(schema.logical_type)
  elsif schema.respond_to?(:logical_type) && schema.logical_type == 'decimal'
    Avromatic::Model::Types::DecimalType.new(precision: schema.precision, scale: schema.scale || 0)
  elsif SINGLETON_TYPES.include?(schema.type)
    SINGLETON_TYPES.fetch(schema.type)
  else
    case schema.type_sym
    when :fixed
      Avromatic::Model::Types::FixedType.new(schema.size)
    when :enum
      Avromatic::Model::Types::EnumType.new(schema.symbols)
    when :array
      value_type = create(schema: schema.items, nested_models: nested_models,
                          use_custom_types: use_custom_types)
      Avromatic::Model::Types::ArrayType.new(value_type: value_type)
    when :map
      value_type = create(schema: schema.values, nested_models: nested_models,
                          use_custom_types: use_custom_types)
      Avromatic::Model::Types::MapType.new(
        key_type: Avromatic::Model::Types::StringType.new,
        value_type: value_type
      )
    when :union
      null_index = schema.schemas.index { |member_schema| member_schema.type_sym == :null }
      raise 'a null type in a union must be the first member' if null_index && null_index > 0

      member_schemas = schema.schemas.reject { |member_schema| member_schema.type_sym == :null }
      if member_schemas.size == 1
        create(schema: member_schemas.first, nested_models: nested_models)
      else
        member_types = member_schemas.map do |member_schema|
          create(schema: member_schema, nested_models: nested_models, use_custom_types: use_custom_types)
        end
        Avromatic::Model::Types::UnionType.new(member_types: member_types)
      end
    when :record
      record_class = build_nested_model(schema: schema, nested_models: nested_models)
      Avromatic::Model::Types::RecordType.new(record_class: record_class)
    else
      raise ArgumentError.new("Unsupported type #{schema.type_sym}")
    end
  end
end