Class: Omnizip::Formats::Rar::CompressionMethodRegistry

Inherits:
Object
  • Object
show all
Defined in:
lib/omnizip/formats/rar/compression_method_registry.rb

Overview

Registry for RAR compression methods

This class manages the registration and retrieval of compression methods for RAR archives. It follows the Registry pattern to allow dynamic addition of compression methods without modifying core code.

Examples:

Registering a compression method

CompressionMethodRegistry.register(
  :rar3_normal,
  Rar3::Compressor,
  Rar3::Decompressor
)

Getting a compressor

compressor = CompressionMethodRegistry.compressor(:rar3_normal)

Class Method Summary collapse

Class Method Details

.clear ⇒ void

This method returns an undefined value.

Clear all registered methods (primarily for testing)



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# File 'lib/omnizip/formats/rar/compression_method_registry.rb', line 80

def clear
  @methods = {}
end

.compressor(name) ⇒ Class

Get a compressor for a method

Parameters:

  • name (Symbol) —

    The method name

Returns:

  • (Class) —

    The compressor class

Raises:

  • (Error::FormatError) —

    If method not registered



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# File 'lib/omnizip/formats/rar/compression_method_registry.rb', line 41

def compressor(name)
  method_data = methods[name]
  return method_data[:compressor] if method_data

  raise Error::FormatError,
        "No compressor registered for method: #{name}"
end

.decompressor(name) ⇒ Class

Get a decompressor for a method

Parameters:

  • name (Symbol) —

    The method name

Returns:

  • (Class) —

    The decompressor class

Raises:

  • (Error::FormatError) —

    If method not registered



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# File 'lib/omnizip/formats/rar/compression_method_registry.rb', line 54

def decompressor(name)
  method_data = methods[name]
  return method_data[:decompressor] if method_data

  raise Error::FormatError,
        "No decompressor registered for method: #{name}"
end

.method_for_version(version, level) ⇒ Symbol

Get a compression method for a RAR version and level

Parameters:

  • version (String) —

    The RAR version (e.g., "3.0", "5.0")

  • level (Symbol) —

    The compression level

Returns:

  • (Symbol) —

    The method name



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# File 'lib/omnizip/formats/rar/compression_method_registry.rb', line 89

def method_for_version(version, level)
  prefix = version.start_with?("5") ? "rar5" : "rar3"
  :"#{prefix}_#{level}"
end

.register(name, compressor, decompressor) ⇒ void

This method returns an undefined value.

Register a compression method

Parameters:

  • name (Symbol) —

    The method name

  • compressor (Class) —

    The compressor class

  • decompressor (Class) —

    The decompressor class



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# File 'lib/omnizip/formats/rar/compression_method_registry.rb', line 29

def register(name, compressor, decompressor)
  methods[name] = {
    compressor: compressor,
    decompressor: decompressor,
  }
end

.registered?(name) ⇒ Boolean

Check if a method is registered

Parameters:

  • name (Symbol) —

    The method name

Returns:

  • (Boolean) —

    True if registered



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# File 'lib/omnizip/formats/rar/compression_method_registry.rb', line 66

def registered?(name)
  methods.key?(name)
end

.registered_methods ⇒ Array<Symbol>

Get all registered method names

Returns:

  • (Array<Symbol>) —

    The registered method names



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# File 'lib/omnizip/formats/rar/compression_method_registry.rb', line 73

def registered_methods
  methods.keys
end