Class: Moneta::Transformer
- Defined in:
- lib/moneta/transformer.rb,
lib/moneta/transformer/config.rb,
lib/moneta/transformer/helper.rb
Overview
Transforms keys and values (Marshal, YAML, JSON, Base64, MD5, …). You can bypass the transformer (e.g. serialization) by using the ‘:raw` option.
Defined Under Namespace
Modules: Helper
Constant Summary collapse
- TRANSFORMER =
Available key/value transformers
{ # Name => [ Type, Load, Dump, Library ], :bencode => [ :serialize, '::BEncode.load(%s)', '::BEncode.dump(%s)', 'bencode' ], :bert => [ :serialize, '::BERT.decode(%s)', '::BERT.encode(%s)', 'bert' ], :bson => [ :serialize, "::BSON.deserialize(%s)['v']", "::BSON.serialize('v'=>%s).to_s", 'bson' ], :json => [ :serialize, '::MultiJson.load(%s).first', '::MultiJson.dump([%s])', 'multi_json' ], :marshal => [ :serialize, '::Marshal.load(%s)', '::Marshal.dump(%s)' ], :msgpack => [ :serialize, '::MessagePack.unpack(%s)', '::MessagePack.pack(%s)', 'msgpack' ], :ox => [ :serialize, '::Ox.parse_obj(%s)', '::Ox.dump(%s)', 'ox' ], :tnet => [ :serialize, '::TNetstring.parse(%s).first', '::TNetstring.dump(%s)', 'tnetstring' ], :yaml => [ :serialize, '::YAML.load(%s)', '::YAML.dump(%s)', 'yaml' ], :bzip2 => [ :compress, '::Bzip2.uncompress(%s)', '::Bzip2.compress(%s)', 'bzip2' ], :lzma => [ :compress, '::LZMA.decompress(%s)', '::LZMA.compress(%s)', 'lzma' ], :lzo => [ :compress, '::LZO.decompress(%s)', '::LZO.compress(%s)', 'lzoruby' ], :snappy => [ :compress, '::Snappy.inflate(%s)', '::Snappy.deflate(%s)', 'snappy' ], :quicklz => [ :compress, '::QuickLZ.decompress(%s)', '::QuickLZ.compress(%s)', 'qlzruby' ], :zlib => [ :compress, '::Zlib::Inflate.inflate(%s)', '::Zlib::Deflate.deflate(%s)', 'zlib' ], :uuencode => [ :encode, "%s.unpack('u').first", "[%s].pack('u').strip" ], :base64 => RUBY_VERSION > '1.9' ? [ :encode, "%s.unpack('m0').first", "[%s].pack('m0')" ] : [ :encode, "%s.unpack('m').first", "[%s].pack('m').gsub(\"\n\", '')" ], :escape => [ :encode, 'Helper.unescape(%s)', 'Helper.escape(%s)' ], :hmac => [ :hmac, 'Helper.hmacverify(%s, @secret)', 'Helper.hmacsign(%s, @secret)', 'openssl' ], :truncate => [ :truncate, nil, 'Helper.truncate(%s, @maxlen)', 'digest/md5' ], :md5 => [ :digest, nil, '::Digest::MD5.hexdigest(%s)', 'digest/md5' ], :rmd160 => [ :digest, nil, '::Digest::RMD160.hexdigest(%s)', 'digest/rmd160' ], :sha1 => [ :digest, nil, '::Digest::SHA1.hexdigest(%s)', 'digest/sha1' ], :sha256 => [ :digest, nil, '::Digest::SHA256.hexdigest(%s)', 'digest/sha2' ], :sha384 => [ :digest, nil, '::Digest::SHA384.hexdigest(%s)', 'digest/sha2' ], :sha512 => [ :digest, nil, '::Digest::SHA512.hexdigest(%s)', 'digest/sha2' ], :prefix => [ :prefix, nil, '(options[:prefix]||@prefix)+%s' ], :spread => [ :spread, nil, 'Helper.spread(%s)' ], }
- VALUE_TRANSFORMER =
Allowed value transformers (Read it like a regular expression!)
'serialize? compress? hmac? encode?'
- KEY_TRANSFORMER =
Allowed key transformers (Read it like a regular expression!)
'serialize? prefix? ((encode? truncate?) | (digest spread?))?'
Instance Attribute Summary
Attributes inherited from Proxy
Class Method Summary collapse
-
.new(adapter, options = {}) ⇒ Transformer
New Moneta transformer.
- .original_new ⇒ Object
Methods inherited from Proxy
#clear, #close, #delete, #increment, #initialize, #key?, #load, #store
Methods included from Defaults
#[], #[]=, #close, #decrement, #fetch, #increment, #key?
Methods included from OptionSupport
#expires, #prefix, #raw, #with
Constructor Details
This class inherits a constructor from Moneta::Proxy
Class Method Details
.new(adapter, options = {}) ⇒ Transformer
Returns new Moneta transformer.
32 33 34 35 36 37 38 39 40 |
# File 'lib/moneta/transformer.rb', line 32 def new(adapter, = {}) keys = [[:key]].flatten.compact values = [[:value]].flatten.compact raise ArgumentError, 'Option :key or :value is required' if keys.empty? && values.empty? [:prefix] ||= '' if keys.include?(:prefix) name = class_name(keys, values) const_set(name, compile(keys, values)) unless const_defined?(name) const_get(name).original_new(adapter, ) end |
.original_new ⇒ Object
22 |
# File 'lib/moneta/transformer.rb', line 22 alias_method :original_new, :new |