class Cloudinary::Cache::RailsCacheAdapter

def fetch(public_id, type, resource_type, transformation, format)
  key = generate_cache_key(public_id, type, resource_type, transformation, format)
  Rails.cache.fetch(key, &Proc.new)
end

def flush_all
end

def generate_cache_key(public_id, type, resource_type, transformation, format)
  Digest::SHA1.hexdigest [public_id, type, resource_type, transformation, format].reject(&:blank?)
end

def get(public_id, type, resource_type, transformation, format)
  key = generate_cache_key(public_id, type, resource_type, transformation, format)
  Rails.cache.read(key)
end

def init
  unless defined? Rails
    raise CloudinaryException.new "Rails is required in order to use RailsCacheAdapter"
  end
end

def set(public_id, type, resource_type, transformation, format, value)
  key = generate_cache_key(public_id, type, resource_type, transformation, format)
  Rails.cache.write(key, value)
end