Class: ActiveSupport::Cache::MemcachedStore::Codec
- Inherits:
-
Object
- Object
- ActiveSupport::Cache::MemcachedStore::Codec
- Defined in:
- lib/active_support/cache/memcached_store.rb
Constant Summary collapse
- SERIALIZED_FLAG =
use dalli compatible flags
0x1
- COMPRESSED_FLAG =
0x2
- RAW_FLAG =
Older versions of this gem would use 0 for the flags whether or not the value was marshal dumped. By setting this flag, we can tell if it were set with an older version for backwards compatible decoding.
0x10
Instance Method Summary collapse
- #decode(_key, value, flags) ⇒ Object
- #encode(_key, value, flags) ⇒ Object
-
#initialize(serializer: Marshal, compressor: nil) ⇒ Codec
constructor
A new instance of Codec.
Constructor Details
#initialize(serializer: Marshal, compressor: nil) ⇒ Codec
Returns a new instance of Codec.
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# File 'lib/active_support/cache/memcached_store.rb', line 27 def initialize(serializer: Marshal, compressor: nil) @serializer = serializer @compressor = compressor end |
Instance Method Details
#decode(_key, value, flags) ⇒ Object
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# File 'lib/active_support/cache/memcached_store.rb', line 45 def decode(_key, value, flags) if (flags & COMPRESSED_FLAG) != 0 value = @compressor.decompress(value) end if (flags & SERIALIZED_FLAG) != 0 @serializer.load(value) elsif flags == 0 # legacy cache value @serializer.load(value) rescue value else value end end |
#encode(_key, value, flags) ⇒ Object
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# File 'lib/active_support/cache/memcached_store.rb', line 32 def encode(_key, value, flags) unless value.is_a?(String) flags |= SERIALIZED_FLAG value = @serializer.dump(value) end if @compressor flags |= COMPRESSED_FLAG value = @compressor.compress(value) end flags |= RAW_FLAG if flags == 0 [value, flags] end |