Method: Origami::Stream#encode!

Defined in:
lib/origami/stream.rb

#encode! ⇒ Object

Compress the stream data.



349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
 
# File 'lib/origami/stream.rb', line 349

def encode!
    return if encoded?
    filters = self.filters

    if filters.empty?
        @encoded_data = @data.dup
        return
    end

    unless filters.all?{|filter| filter.is_a?(Name)}
        raise InvalidStreamObjectError, "Invalid Filter type parameter"
    end

    dparams = decode_params

    @encoded_data = @data.dup
    (filters.length - 1).downto(0) do |layer|
        params = dparams[layer].is_a?(Dictionary) ? dparams[layer] : {}
        filter = filters[layer]

        # Handle Crypt filters.
        if filter == :Crypt
            raise Filter::Error, "Crypt filter must be the first filter" unless layer.zero?

            # Skip the Crypt filter.
            next
        end

        @encoded_data = encode_data(@encoded_data, filter, params)
    end

    self.Length = @encoded_data.length

    self
end