Class: JSON::Schema::Serializer::Walker

Inherits:
Object
  • Object
show all
Defined in:
lib/json/schema/serializer.rb

Constant Summary collapse

TimeWithZone = 
defined?(ActiveSupport::TimeWithZone) ? ActiveSupport::TimeWithZone : nil

Class Method Summary collapse

Class Method Details

.detect_type(type, obj) ⇒ Object 



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# File 'lib/json/schema/serializer.rb', line 41

def detect_type(type, obj)
  return type unless type.is_a?(Array)
  type = Set.new(type.map(&:to_s))

  case obj
  when nil
    case
    when type.include?("null")
      "null"
    else
      type.first
    end
  when DateTime, Date, Time, TimeWithZone
    case
    when type.include?("string")
      "string"
    when type.include?("number")
      "number"
    when type.include?("integer")
      "integer"
    else
      type.first
    end
  when String
    case
    when type.include?("string")
      "string"
    else
      type.first
    end
  when Integer
    case
    when type.include?("integer")
      "integer"
    when type.include?("number")
      "number"
    when type.include?("string")
      "string"
    when type.include?("boolean")
      "boolean"
    else
      type.first
    end
  when Float
    case
    when type.include?("number")
      "number"
    when type.include?("string")
      "string"
    when type.include?("integer")
      "integer"
    when type.include?("boolean")
      "boolean"
    else
      type.first
    end
  when true, false
    case
    when type.include?("boolean")
      "boolean"
    else
      type.first
    end
  when Array
    case
    when type.include?("array")
      "array"
    else
      type.first
    end
  else
    case
    when type.include?("object")
      "object"
    else
      type.first
    end
  end
end

.type_coerce(schema, type, format, obj, required, options) ⇒ Object 



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# File 'lib/json/schema/serializer.rb', line 121

def type_coerce(schema, type, format, obj, required, options)
  return nil if !required && obj.nil?

  case type.to_s
  when "null"
    nil
  when "string"
    case obj
    when nil
      options[:null_through] ? nil : ""
    when DateTime, Date, Time, TimeWithZone
      case format.to_s
      when "date-time"
        obj.strftime("%FT%T%:z")
      when "date"
        obj.strftime("%F")
      when "time"
        obj.strftime("%T%:z")
      else
        obj.to_s
      end
    when Regexp
      obj.inspect.gsub(%r{^/|/[a-z]*$}, "")
    else
      obj.to_s
    end
  when "integer"
    case obj
    when true
      1
    when false
      0
    when nil
      options[:null_through] ? nil : 0
    when ""
      options[:empty_string_number_coerce_null] ? nil : 0
    else
      obj.to_i
    end
  when "number"
    case obj
    when true
      1.0
    when false
      0.0
    when nil
      options[:null_through] ? nil : 0.0
    when ""
      options[:empty_string_number_coerce_null] ? nil : 0.0
    else
      obj.to_f
    end
  when "boolean"
    if obj.nil? && options[:null_through]
      nil
    elsif options[:empty_string_boolean_coerce_null] && obj == ""
      nil
    elsif options[:false_values]
      !options[:false_values].include?(obj)
    elsif options[:no_boolean_coerce]
      obj == true
    else
      obj ? true : false
    end
  when "array"
    items_schema = try_hash(schema, :items)
    return options[:null_through] ? nil : [] if obj.nil? || !obj.respond_to?(:map)
    return options[:null_through] ? nil : [] if options[:guard_primitive_in_structure] && is_primitive?(obj)

    obj.map { |item| walk(items_schema, item, true, options) }
  when "object"
    return nil if obj.nil? && options[:null_through]
    return options[:null_through] ? nil : {} if options[:guard_primitive_in_structure] && is_primitive?(obj)

    properties_schema = try_hash(schema, :properties)
    additional_properties_schema = try_hash(schema, :additionalProperties)
    required_schema = Set.new(try_hash(schema, :required)&.map(&:to_s))
    input_key_transform = options[:schema_key_transform_for_input] # schema key -> input obj key
    output_key_transform = options[:schema_key_transform_for_output] # schema key -> out
    ret =
      properties_schema.map do |name, property_schema|
        input_key = input_key_transform ? input_key_transform.call(name.to_s) : name
        output_key = output_key_transform ? output_key_transform.call(name.to_s) : name.to_s
        [output_key, walk(property_schema, try_hash(obj, input_key), required_schema.include?(name.to_s), options)]
      end.to_h
    if additional_properties_schema
      not_additional_keys_array = properties_schema.keys.map(&:to_s)
      not_additional_keys = Set.new(input_key_transform ? not_additional_keys_array.map { |k| input_key_transform.call(k) } : not_additional_keys_array)
      additional_keys = obj.keys.reject { |key| not_additional_keys.include?(key.to_s) }
      ret.merge(
        additional_keys.map do |name|
          output_key = output_key_transform ? output_key_transform.call(name.to_s) : name.to_s
          [output_key, walk(additional_properties_schema, try_hash(obj, name), false, options)]
        end.to_h,
      )
    else
      ret
    end
  end
end

.walk(schema, obj, required, options) ⇒ Object 



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# File 'lib/json/schema/serializer.rb', line 21

def walk(schema, obj, required, options)
  type = try_hash(schema, :type)
  default = try_hash(schema, :default)
  format = try_hash(schema, :format)
  obj = default if obj.nil?

  if options[:inject_key]
    inject_key = try_hash(schema, options[:inject_key])
    injector = try_hash(options[:injectors], inject_key) if inject_key
    if injector
      if options[:inject_context]
        obj = injector.new(obj, options[:inject_context])
      else
        obj = injector.new(obj)
      end
    end
  end
  type_coerce(schema, detect_type(type, obj), format, obj, required, options)
end