Class: APICache::MemcacheStore

Inherits:
AbstractStore show all
Defined in:
lib/api_cache/memcache_store.rb

Defined Under Namespace

Classes: NotDefined, NotReady

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MemcacheStore

Returns a new instance of MemcacheStore.

Raises:



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# File 'lib/api_cache/memcache_store.rb', line 16

def initialize
  APICache.logger.log "Using memcached store"
  namespace = 'api_cache'
  host = '127.0.0.1:11211'
  @memcache = MemCache.new(host, {:namespace => namespace})
  raise NotReady unless @memcache.active?
  true
# rescue NameError
#   raise NotDefined
end

Instance Method Details

#exists?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/api_cache/memcache_store.rb', line 40

def exists?(key)
  # TODO: inefficient - is there a better way?
  !@memcache.get(key).nil?
end

#expired?(key, timeout) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/api_cache/memcache_store.rb', line 45

def expired?(key, timeout)
  Time.now - created(key) > timeout
end

#get(key) ⇒ Object 



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# File 'lib/api_cache/memcache_store.rb', line 34

def get(key)
  data = @memcache.get(key)
  APICache.logger.log("cache: #{data.nil? ? "miss" : "hit"} (#{key})")
  data
end

#set(key, data) ⇒ Object 



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# File 'lib/api_cache/memcache_store.rb', line 27

def set(key, data)
  @memcache.set(key, data)
  @memcache.set("#{key}_created_at", Time.now)
  APICache.logger.log("cache: set (#{key})")
  true
end