Class: Gitlab::Cache::JsonCache

Inherits:
Object
  • Object
show all
Defined in:
lib/gitlab/cache/json_cache.rb

Constant Summary collapse

STRATEGY_KEY_COMPONENTS = 
{
  revision: Gitlab.revision,
  version: [Gitlab::VERSION, Rails.version]
}.freeze

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ JsonCache

Returns a new instance of JsonCache.



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# File 'lib/gitlab/cache/json_cache.rb', line 11

def initialize(options = {})
  @backend = options.fetch(:backend, Rails.cache)
  @namespace = options.fetch(:namespace, nil)
  @cache_key_strategy = options.fetch(:cache_key_strategy, :revision)
end

Instance Method Details

#active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/gitlab/cache/json_cache.rb', line 17

def active?
  if backend.respond_to?(:active?)
    backend.active?
  else
    true
  end
end

#expire(key) ⇒ Object 



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# File 'lib/gitlab/cache/json_cache.rb', line 25

def expire(key)
  backend.delete(cache_key(key))
end

#fetch(key, options = {}) ⇒ Object 



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# File 'lib/gitlab/cache/json_cache.rb', line 39

def fetch(key, options = {})
  klass = options.delete(:as)
  value = read(key, klass)

  return value unless value.nil?

  value = yield

  write(key, value, options)

  value
end

#read(key, klass = nil) ⇒ Object 



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# File 'lib/gitlab/cache/json_cache.rb', line 29

def read(key, klass = nil)
  value = read_raw(key)
  value = parse_value(value, klass) unless value.nil?
  value
end

#write(key, value, options = nil) ⇒ Object 



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# File 'lib/gitlab/cache/json_cache.rb', line 35

def write(key, value, options = nil)
  write_raw(key, value, options)
end