class Zip::Decompressor

def self.decompressor_classes
  @decompressor_classes ||= {}
end

def self.find_by_compression_method(compression_method)
  decompressor_classes[compression_method]
end

def self.register(compression_method, decompressor_class)
  decompressor_classes[compression_method] = decompressor_class
end

def initialize(input_stream, decompressed_size = nil)
  super()
  @input_stream = input_stream
  @decompressed_size = decompressed_size
end