Module: JsonSchema::Faker::Util

Included in:
Strategy::Simple
Defined in:
lib/json_schema/faker/util.rb

Instance Method Summary collapse

Instance Method Details

#compare_schema(a, b) ⇒ Object

umhhh maybe we don’t need this…



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# File 'lib/json_schema/faker/util.rb', line 6

def compare_schema(a, b)
  if a.is_a?(::JsonSchema::Schema) && b.is_a?(::JsonSchema::Schema)
    %i[ multiple_of min max min_exclusive max_exclusive
      max_length min_length pattern
      additional_items items max_items min_items unique_items
      max_properties min_properties required additional_properties properties pattern_properties
      enum type all_of any_of one_of not
    ].all? {|k| compare_schema(a.__send__(k), b.__send__(k)) }
  elsif a.is_a?(::Array) && b.is_a?(::Array)
    return false unless a.size == b.size
    a.zip(b).all? {|ai, bi| compare_schema(ai, bi) }
  elsif a.is_a?(::Hash) && b.is_a?(::Hash)
    return false unless a.keys.sort == b.keys.sort
    a.keys.all? {|key| compare_schema(a[key], b[key]) }
  else
    a == b
  end
end

#take_logical_and_of_schema(a, b, a_position: nil, b_position: nil) ⇒ Object 



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# File 'lib/json_schema/faker/util.rb', line 31

def take_logical_and_of_schema(a, b, a_position: nil, b_position: nil)
  return a || b if a.nil? || b.nil?

  # deep copy and modify it
  a = ::JsonSchema::Schema.new.tap {|s| s.copy_from(a) }

  # for numeric
  if a.multiple_of && b.multiple_of
    # TODO: multipleOf it seems easy
    ::JsonSchema::Faker::Configuration.logger.warn "not support merging multipleOf" if ::JsonSchema::Faker::Configuration.logger
  end

  # maximum minimum exclusiveMinimum exclusiveMinimum
  if b.max
    if !a.max || a.max > b.max
      a.max = b.max
    end
    a.max_exclusive = b.max_exclusive if b.max_exclusive
  end
  if b.min
    if !a.min || a.min < b.min
      a.min = b.min
    end
    a.min_exclusive = b.min_exclusive if b.min_exclusive
  end

  # for string
  # maxLength minLength
  if b.max_length
    if !a.max_length || a.max_length > b.max_length
      a.max_length = b.max_length
    end
  end
  if b.min_length
    if !a.min_length || a.min_length < b.min_length
      a.min_length = b.min_length
    end
  end
  # pattern
  if b.pattern
    if a.pattern
      # TODO: pexeger does not support generated one
      ::JsonSchema::Faker::Configuration.logger.warn "not support merging pattern" if ::JsonSchema::Faker::Configuration.logger
      #  a.pattern = RegExp.new("/^(?=.*#{a.pattern.inspect.gsub("/\\/", "").gsub("\\//", "")})(?=.*#{b.pattern.inspect.gsub("/\\/", "").gsub("\\//", "")})/")
    else
      a.pattern = b.pattern
    end
  end

  # for array
  # items and aditionalItems
  if b.items
    if a.items
      if a.items.is_a?(Array) && b.items.is_a?(Array)
        original_a_items = a.items
        a.items = [] # avoid disruptive
        [ original_a_items.size, b.items.size ].max.times do |i|
          # XXX:
          ai, bi = original_a_items[i], b.items[i]
          if ai && bi
            a.items[i] = take_logical_and_of_schema(ai, bi)
          else
            # XXX: consider aditionalItems
            a.items[i] = ai || bi
          end
        end
      elsif a.items.is_a?(::JsonSchema::Schema) && b.items.is_a?(::JsonSchema::Schema)
        a.items = take_logical_and_of_schema(a.items, b.items)
      end
    else
      a.items = b.items
    end
  end
  if a.additional_items === false || b.additional_items === false
    a.additonal_items = false
  else
    if b.additional_items.is_a?(::JsonSchema::Schema)
      if a.additional_items.is_a?(::JsonSchem::Schema)
        ::JsonSchema::Faker::Configuration.logger.warn "not support merging additionalItems" if ::JsonSchema::Faker::Configuration.logger
      else
        a.additional_items = b.additional_items
      end
    end
  end
  # maxItems, minItems
  if b.max_items
    if !a.max_items || a.max_items > b.max_items
      a.max_items = b.max_items
    end
  end
  if b.min_items
    if !a.min_items || a.min_items < b.min_items
      a.min_items = b.min_items
    end
  end
  # uniqueItems
  if a.unique_items || b.unique_items
    a.unique_items = true
  end

  # for object
  # maxProperties, minProperties
  if b.max_properties
    if !a.max_properties || a.max_properties > b.max_properties
      a.max_properties = b.max_properties
    end
  end
  if b.min_properties
    if !a.min_properties || a.min_properties < b.min_properties
      a.min_properties = b.min_properties
    end
  end
  # required
  if b.required
    a.required = a.required ? (a.required + b.required).uniq : b.required
  end
  # properties
  if !b.properties.empty?
    original_a_properties = a.properties
    a.properties = {} # avoid disruptive
    ( original_a_properties.keys + b.properties.keys ).uniq.each do |key|
      a.properties[key] = take_logical_and_of_schema(original_a_properties[key], b.properties[key])
    end
  end
  # additionalProperties, patternProperties, dependencies
  if a.additional_properties === false || b.additional_properties === false
    a.additional_properties = false
  else
    if b.additional_properties.is_a?(::JsonSchema::Schema)
      if a.additional_properties.is_a?(::JsonSchem::Schema)
        ::JsonSchema::Faker::Configuration.logger.warn "not support merging additionalProperties" if ::JsonSchema::Faker::Configuration.logger
      else
        a.additional_properties = b.additional_properties
      end
    end
  end
  if !b.pattern_properties.empty?
    if !a.pattern_properties.empty?
      ::JsonSchema::Faker::Configuration.logger.warn "not support merging patternProperties" if ::JsonSchema::Faker::Configuration.logger
    else
      a.pattern_properties = b.pattern_properties
    end
  end
  if !b.dependencies.empty?
    if !a.dependencies.empty?
      ::JsonSchema::Faker::Configuration.logger.warn "not support merging dependencies" if ::JsonSchema::Faker::Configuration.logger
    else
      a.dependencies = b.dependencies
    end
  end
  # for any
  # enum
  if b.enum
    if a.enum
      a.enum = a.enum & b.enum
    else
      a.enum = b.enum
    end
  end
  # type
  if !b.type.empty?
    if !a.type.empty?
      a.type = a.type & b.type
    else
      a.type = b.type
    end
  end
  # allOf
  if !b.all_of.empty?
    if !a.all_of.empty?
      a.all_of = [
        [ *a.all_of, *b.all_of ].inject(nil) {|res, c| res ? take_logical_and_of_schema(res, c) : c }
      ]
    else
      a.all_of = b.all_of
    end
  end
  # anyOf
  if !b.any_of.empty?
    if !a.any_of.empty?
      # XXX: it is difficult to find logically and of any_of
      # like "anyOf": { "minimum": 5 }, { "multipleOf": 3 } and { "maximum": 6 }, { "multipleOf": 2 }
      a.any_of = take_unique_items(a.any_of, b.any_of)
    else
      a.any_of = b.any_of
    end
  end
  # oneOf
  if !b.one_of.empty?
    if !a.one_of.empty?
      # XXX: it is difficult to find logically and of one_of
      a.one_of = take_unique_items(a.one_of, b.one_of)
    else
      a.one_of = b.one_of
    end
  end
  # not
  if b.not
    if a.not
      ::JsonSchema::Faker::Configuration.logger.warn "not support merging not" if ::JsonSchema::Faker::Configuration.logger
    else
      a.not = b.not
    end
  end
  # semantic keyword
  if b.format
    if a.format
      ::JsonSchema::Faker::Configuration.logger.warn "not support merging format" if ::JsonSchema::Faker::Configuration.logger
    else
      a.format = b.format
    end
  end

  a
end

#take_unique_items(a, b) ⇒ Object 



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# File 'lib/json_schema/faker/util.rb', line 25

def take_unique_items(a, b)
  a.select do |ae|
    b.any? {|be| compare_schema(ae, be) }
  end
end