Class: Rack::Cache::EntityStore::Dalli

Inherits:
MemCacheBase show all
Defined in:
lib/rack/cache/entity_store.rb

Overview

Uses the Dalli ruby library. This is the default unless the memcached library has already been required.

Constant Summary

Constants inherited from Rack::Cache::EntityStore

DISK, FILE, GAE, GAECACHE, HEAP, MEM, MEMCACHE, MEMCACHED, NOOP

Instance Attribute Summary

Attributes inherited from MemCacheBase

#cache

Instance Method Summary collapse

Methods inherited from MemCacheBase

#open, resolve

Constructor Details

#initialize(server = "localhost:11211", options = {}) ⇒ Dalli

Returns a new instance of Dalli.



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# File 'lib/rack/cache/entity_store.rb', line 210

def initialize(server="localhost:11211", options={})
  @cache =
    if server.respond_to?(:stats)
      server
    else
      require 'dalli'
      ::Dalli::Client.new(server, options)
    end
end

Instance Method Details

#exist?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rack/cache/entity_store.rb', line 220

def exist?(key)
  !cache.get(key).nil?
end

#purge(key) ⇒ Object 



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# File 'lib/rack/cache/entity_store.rb', line 236

def purge(key)
  cache.delete(key)
  nil
end

#read(key) ⇒ Object 



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# File 'lib/rack/cache/entity_store.rb', line 224

def read(key)
  data = cache.get(key)
  data.force_encoding('BINARY') if data.respond_to?(:force_encoding)
  data
end

#write(body, ttl = nil) ⇒ Object 



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# File 'lib/rack/cache/entity_store.rb', line 230

def write(body, ttl=nil)
  buf = StringIO.new
  key, size = slurp(body){|part| buf.write(part) }
  [key, size] if cache.set(key, buf.string, ttl)
end