Class: TypeSerializer

Inherits:
Object
  • Object
show all
Defined in:
lib/javonet-ruby-sdk/core/protocol/type_serializer.rb,
lib/javonet-ruby-sdk/Binaries/Ruby/Linux/X64/core/protocol/type_serializer.rb,
lib/javonet-ruby-sdk/Binaries/Ruby/MacOs/X64/core/protocol/type_serializer.rb,
lib/javonet-ruby-sdk/Binaries/Ruby/Windows/X64/core/protocol/type_serializer.rb

Class Method Summary collapse

Class Method Details

.double_to_bytes(value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 199

def self.double_to_bytes(value)
  # IEEE 754 double-precision binary floating-point format (64-bit)

  # Manual implementation without using pack

  bits_low = 0
  bits_high = 0

  if value == 0
    # Zero is a special case

    return [0, 0, 0, 0, 0, 0, 0, 0]
  elsif value.nan?
    # NaN is another special case

    bits_high = 0x7FF80000
    bits_low = 0
  elsif value.infinite?
    # Handle infinity

    bits_high = value > 0 ? 0x7FF00000 : 0xFFF00000
    bits_low = 0
  else
    # Regular number

    sign = value < 0 ? 1 : 0
    value = value.abs

    # Get exponent and fraction

    exponent = Math.log2(value).floor
    fraction = value / (2.0**exponent) - 1.0

    # Normalize exponent for IEEE 754 bias

    biased_exponent = exponent + 1023

    # Clamp exponent to valid range

    if biased_exponent <= 0
      # Denormalized values

      biased_exponent = 0
      fraction = value / (2.0**(-1022))
    elsif biased_exponent >= 2047
      # Overflow, return infinity

      biased_exponent = 2047
      fraction = 0
    end

    # Assemble the bits

    # Convert a fraction to 52-bit integer

    fraction_bits = (fraction * 0x10000000000000).round

    # Split into high and low 32-bit words

    bits_high = (sign << 31) | (biased_exponent << 20) | ((fraction_bits >> 32) & 0xFFFFF)
    bits_low = fraction_bits & 0xFFFFFFFF
  end

  # Convert to bytes (little-endian)

  [
    bits_low & 0xFF,
    (bits_low >> 8) & 0xFF,
    (bits_low >> 16) & 0xFF,
    (bits_low >> 24) & 0xFF,
    bits_high & 0xFF,
    (bits_high >> 8) & 0xFF,
    (bits_high >> 16) & 0xFF,
    (bits_high >> 24) & 0xFF
  ]
end

.float_to_bytes(value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 148

def self.float_to_bytes(value)
  # IEEE 754 single-precision binary floating-point format (32-bit)

  # Manual implementation without using pack

  bits = 0

  if value == 0
    # Zero is a special case

    return [0, 0, 0, 0]
  elsif value.nan?
    # NaN is another special case

    bits = 0x7FC00000
  elsif value.infinite?
    # Handle infinity

    bits = value > 0 ? 0x7F800000 : 0xFF800000
  else
    # Regular number

    sign = value < 0 ? 1 : 0
    value = value.abs

    # Get exponent and fraction

    exponent = Math.log2(value).floor
    fraction = value / (2.0**exponent) - 1.0

    # Normalize exponent for IEEE 754 bias

    biased_exponent = exponent + 127

    # Clamp exponent to valid range

    if biased_exponent <= 0
      # Denormalized values

      biased_exponent = 0
      fraction = value / (2.0**(-126))
    elsif biased_exponent >= 255
      # Overflow, return infinity

      biased_exponent = 255
      fraction = 0
    end

    # Assemble the bits

    fraction_bits = (fraction * 0x800000).round & 0x7FFFFF
    bits = (sign << 31) | (biased_exponent << 23) | fraction_bits
  end

  # Convert to bytes (little-endian)

  [
    bits & 0xFF,
    (bits >> 8) & 0xFF,
    (bits >> 16) & 0xFF,
    (bits >> 24) & 0xFF
  ]
end

.int_to_bytes(value) ⇒ Object

Helper methods for byte conversion



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 100

def self.int_to_bytes(value)
  # Convert to 4-byte (32-bit) integer, little-endian

  [
    value & 0xFF,
    (value >> 8) & 0xFF,
    (value >> 16) & 0xFF,
    (value >> 24) & 0xFF
  ]
end

.longlong_to_bytes(value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 120

def self.longlong_to_bytes(value)
  # Convert to 8-byte (64-bit) integer, little-endian

  [
    value & 0xFF,
    (value >> 8) & 0xFF,
    (value >> 16) & 0xFF,
    (value >> 24) & 0xFF,
    (value >> 32) & 0xFF,
    (value >> 40) & 0xFF,
    (value >> 48) & 0xFF,
    (value >> 56) & 0xFF
  ]
end

.serialize_bool(bool_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 47

def self.serialize_bool(bool_value)
  encoded_bool_list = bool_value ? [1] : [0]
  length = encoded_bool_list.length
  return [Type::JAVONET_BOOLEAN, length] + encoded_bool_list
end

.serialize_byte(byte_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 59

def self.serialize_byte(byte_value)
  encoded_byte_list = [byte_value & 0xFF]
  length = encoded_byte_list.length
  return [Type::JAVONET_BYTE, length] + encoded_byte_list
end

.serialize_char(char_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 65

def self.serialize_char(char_value)
  encoded_char_list = [char_value & 0xFF]
  length = encoded_char_list.length
  return [Type::JAVONET_CHAR, length] + encoded_char_list
end

.serialize_command(command) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 30

def self.serialize_command(command)
  length = int_to_bytes(command.payload.length)
  return [Type::COMMAND] + length + [command.runtime_name, command.command_type]
end

.serialize_double(double_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 77

def self.serialize_double(double_value)
  encoded_double_list = double_to_bytes(double_value)
  length = encoded_double_list.length
  return [Type::JAVONET_DOUBLE, length] + encoded_double_list
end

.serialize_float(float_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 53

def self.serialize_float(float_value)
  encoded_float_list = float_to_bytes(float_value)
  length = encoded_float_list.length
  return [Type::JAVONET_FLOAT, length] + encoded_float_list
end

.serialize_int(int_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 41

def self.serialize_int(int_value)
  encoded_int_list = int_to_bytes(int_value)
  length = encoded_int_list.length
  return [Type::JAVONET_INTEGER, length] + encoded_int_list
end

.serialize_longlong(longlong_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 71

def self.serialize_longlong(longlong_value)
  encoded_longlong_list = longlong_to_bytes(longlong_value)
  length = encoded_longlong_list.length
  return [Type::JAVONET_LONG_LONG, length] + encoded_longlong_list
end

.serialize_nil ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 95

def self.serialize_nil
  return [Type::JAVONET_NULL, 1, 0]
end

.serialize_primitive(payload_item) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 6

def self.serialize_primitive(payload_item)
  if payload_item.nil?
    return serialize_nil
  elsif [true, false].include? payload_item
    return serialize_bool(payload_item)
  elsif payload_item.is_a? Integer
    if (-2 ** 31..2 ** 31 - 1).include?(payload_item)
      return serialize_int(payload_item)
    elsif (-2 ** 63..2 ** 63 - 1).include?(payload_item)
      return serialize_longlong(payload_item)
    else
      return serialize_ullong(payload_item)
    end
  elsif payload_item.is_a? String
    return serialize_string(payload_item)
  elsif payload_item.is_a? Float
    return serialize_double(payload_item)
  elsif payload_item.is_a?(FalseClass) || payload_item.is_a?(TrueClass)
    return serialize_bool(payload_item)
  else
    raise TypeError, "Unsupported payload item type: #{payload_item.class} for payload item: #{payload_item}."
  end
end

.serialize_string(string_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 35

def self.serialize_string(string_value)
  encoded_string_list = string_value.bytes
  length = int_to_bytes(encoded_string_list.length)
  return [Type::JAVONET_STRING, StringEncodingMode::UTF8] + length + encoded_string_list
end

.serialize_uint(uint_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 83

def self.serialize_uint(uint_value)
  encoded_uint_list = uint_to_bytes(uint_value)
  length = encoded_uint_list.length
  return [Type::JAVONET_UNSIGNED_INTEGER, length] + encoded_uint_list
end

.serialize_ullong(ullong_value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 89

def self.serialize_ullong(ullong_value)
  encoded_ullong_list = ullong_to_bytes(ullong_value)
  length = encoded_ullong_list.length
  return [Type::JAVONET_UNSIGNED_LONG_LONG, length] + encoded_ullong_list
end

.uint_to_bytes(value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 110

def self.uint_to_bytes(value)
  # Convert to 4-byte unsigned integer, little-endian

  [
    value & 0xFF,
    (value >> 8) & 0xFF,
    (value >> 16) & 0xFF,
    (value >> 24) & 0xFF
  ]
end

.ullong_to_bytes(value) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/type_serializer.rb', line 134

def self.ullong_to_bytes(value)
  # Convert to 8-byte unsigned long long, little-endian

  [
    value & 0xFF,
    (value >> 8) & 0xFF,
    (value >> 16) & 0xFF,
    (value >> 24) & 0xFF,
    (value >> 32) & 0xFF,
    (value >> 40) & 0xFF,
    (value >> 48) & 0xFF,
    (value >> 56) & 0xFF
  ]
end