Class: Slimmer::Cache

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/slimmer/cache.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Cache

TODO: use a real cache rather than an in memory hash



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# File 'lib/slimmer/cache.rb', line 9

def initialize
  @cache_last_reset= Time.now

  @use_cache = false
  @cache_ttl = (5 * 60) # 5 mins

  @data_store = {}
end

Instance Attribute Details

#cache_ttl=(value) ⇒ Object (writeonly)

Sets the attribute cache_ttl

Parameters:

  • value —

    the value to set the attribute cache_ttl to.



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# File 'lib/slimmer/cache.rb', line 6

def cache_ttl=(value)
  @cache_ttl = value
end

#use_cache=(value) ⇒ Object (writeonly)

Sets the attribute use_cache

Parameters:

  • value —

    the value to set the attribute use_cache to.



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# File 'lib/slimmer/cache.rb', line 6

def use_cache=(value)
  @use_cache = value
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/slimmer/cache.rb', line 18

def clear
  @data_store.clear
end

#fetch(key) ⇒ Object 



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# File 'lib/slimmer/cache.rb', line 22

def fetch(key)
  clear_cache_if_stale
  data = @data_store[key]

  if data.nil?
    data = yield
  end

  if @use_cache
    @data_store[key] = data
  end

  data
end