Sha256: 94040b09493326763be971b413eabbef028ffc75ad9f66f7c39bdc7c491ea9a8
Contents?: true
Size: 1.92 KB
Versions: 6
Compression:
Stored size: 1.92 KB
Contents
module Assets
class Environment
# Environment that caches assets
class Cache < self
include Adamantium::Flat, Equalizer.new(:environment)
# Return inner environment
#
# @return [Environment]
#
# @api private
#
attr_reader :environment
# Build cache environemnt
#
# @param [Enumerable<Rules>] rules
#
# @return [Cache]
#
# @api private
#
def self.build(rules)
new(Dynamic.new(rules))
end
# Initialize object
#
# @param [Environment] environment
#
# @return [undefined]
#
# @api private
#
def initialize(environment)
@environment, @cache = environment, {}
end
# Return rule
#
# @param [String] name
#
# @return [Rule]
# if found
#
# @return [nil]
# otherwise
#
# @api private
#
def rule(name)
environment.rule(name)
end
# Return asset
#
# @param [String] name
#
# @return [Asset]
# if found
#
# @return [nil]
# otherwise
#
def get(name)
rule = rule(name)
return unless rule
asset = @cache.fetch(name) do
return miss(rule)
end
hit(rule, asset)
end
private
# Process cache hit
#
# @param [Rule] rule
# @param [Asset] asset
#
# @return [Asset]
#
# @api private
#
def hit(rule, asset)
if rule.fresh_at?(asset.created_at)
return asset
end
miss(rule)
end
# Process cache miss
#
# @param [Rule] rule
#
# @return [Asset]
# if found
#
# @return [nil]
# otherwise
#
# @api private
#
def miss(rule)
@cache[rule.name] = rule.asset
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems