Class: Codec::Tagged

Inherits:
Base
  • Object
show all
Defined in:
lib/codec/prefix.rb

Instance Attribute Summary

Attributes inherited from Base

#id

Instance Method Summary collapse

Methods inherited from Base

#add_sub_codec, #build_field, #decode_with_length, #encode_with_length, #eval_length, #get_length, #get_sub_codecs

Constructor Details

#initialize(id, tag_codec) ⇒ Tagged 



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# File 'lib/codec/prefix.rb', line 107

def initialize(id,tag_codec)
  @subCodecs = {}
  @tag_codec = tag_codec
 @id = id
end

Instance Method Details

#decode(buffer) ⇒ Object 



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# File 'lib/codec/prefix.rb', line 113

def decode(buffer)
  tag,buf = @tag_codec.decode(buffer)
  if @subCodecs[tag.get_value.to_s].nil?
    raise ParsingException.new "Unknown tag #{tag.get_value.to_s} for #{@id} decoder"
  end
  f,buf = @subCodecs[tag.get_value.to_s].decode(buf)
  f.set_id(tag.get_value.to_s)
  return f,buf
end

#encode(field) ⇒ Object 



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# File 'lib/codec/prefix.rb', line 123

def encode(field)
  head = Field.new(@tag_codec.id, field.get_id)
  out = @tag_codec.encode(head)
  if @subCodecs[field.get_id].nil?
    raise EncodingException.new "Unknown tag #{field.get_id} for #{@id} encoder"
  end
  out += @subCodecs[field.get_id].encode(field)
  return out
end