Class: CommandDeserializer

Inherits:
Object
  • Object
show all
Defined in:
lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb

Instance Method Summary collapse

Constructor Details

#initialize(buffer) ⇒ CommandDeserializer

Returns a new instance of CommandDeserializer.



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 9

def initialize(buffer)
  @buffer = buffer
  @buffer_len = buffer.length
  @command = Command.new(buffer[0], buffer[10], [])
  @position = 11
end

Instance Method Details

#deserialize ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 20

def deserialize
  until is_at_end
    @command = @command.add_arg_to_payload(read_object(@buffer[@position]))
  end
  @command
end

#is_at_end ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 16

def is_at_end
  @position == @buffer_len
end

#read_bool ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 113

def read_bool
  size = 1
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_bool(@buffer[p...p + size])
end

#read_byte ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 129

def read_byte
  size = 1
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_byte(@buffer[p...p + size])
end

#read_char ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 137

def read_char
  size = 1
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_char(@buffer[p...p + size])
end

#read_command ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 58

def read_command
  p = @position
  number_of_elements_in_payload = TypeDeserializer.deserialize_int(@buffer[p + 1..p + 4])
  runtime = @buffer[p + 5]
  command_type = @buffer[p + 6]
  @position += 7

  payload = []
  i = 0
  while i < number_of_elements_in_payload
    payload << read_object(@buffer[@position])
    i += 1
  end
  Command.new(runtime, command_type, payload)
end

#read_double ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 153

def read_double
  size = 8
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_double(@buffer[p...p + size])
end

#read_float ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 121

def read_float
  size = 4
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_float(@buffer[p...p + size])
end

#read_int ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 105

def read_int
  size = 4
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_int(@buffer[p...p + size])
end

#read_longlong ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 145

def read_longlong
  size = 8
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_longlong(@buffer[p...p + size])
end

#read_nil ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 177

def read_nil
  size = 1
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_nil(@buffer[p...p + size])
end

#read_object(type_num) ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 27

def read_object(type_num)
  case type_num
  when Type::COMMAND
    return self.read_command
  when Type::JAVONET_STRING
    return self.read_string
  when Type::JAVONET_INTEGER
    return self.read_int
  when Type::JAVONET_BOOLEAN
    return self.read_bool
  when Type::JAVONET_FLOAT
    return self.read_float
  when Type::JAVONET_BYTE
    return self.read_byte
  when Type::JAVONET_CHAR
    return self.read_char
  when Type::JAVONET_LONG_LONG
    return self.read_longlong
  when Type::JAVONET_DOUBLE
    return self.read_double
  when Type::JAVONET_UNSIGNED_LONG_LONG
    return self.read_ullong
  when Type::JAVONET_UNSIGNED_INTEGER
    return self.read_uint
  when Type::JAVONET_NULL
    return self.read_nil
  else
    raise Exception.new("Type #{type_num} not supported in command deserializer")
  end
end

#read_string ⇒ Object

old implementation

def read_command
  p = @position
  number_of_elements_in_payload = TypeDeserializer.deserialize_int(@buffer[p + 1..p + 4])
  runtime = @buffer[p + 5]
  command_type = @buffer[p + 6]
  @position += 7
  return_command = Command.new(runtime, command_type, [])
  read_command_recursively(number_of_elements_in_payload, return_command)
end

def read_command_recursively(number_of_elements_in_payload_left, cmd)
  if number_of_elements_in_payload_left == 0
    cmd
  else
    p = @position
    cmd = cmd.add_arg_to_payload(self.read_object(@buffer[p]))
    read_command_recursively(number_of_elements_in_payload_left - 1, cmd)
  end
end



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

def read_string
  p = @position
  string_encoding_mode = @buffer[p + 1]
  size = TypeDeserializer.deserialize_int(@buffer[p + 2..p + 5])
  @position += 6
  p = @position
  @position += size
  TypeDeserializer.deserialize_string(string_encoding_mode, @buffer[p...p + size])
end

#read_uint ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 169

def read_uint
  size = 4
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_uint(@buffer[p...p + size])
end

#read_ullong ⇒ Object 



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# File 'lib/javonet-ruby-sdk/core/protocol/command_deserializer.rb', line 161

def read_ullong
  size = 8
  @position += 2
  p = @position
  @position += size
  TypeDeserializer.deserialize_ullong(@buffer[p...p + size])
end