Sha256: 4395c4dd178f18bdda1eba597df144c7a72766cf546e7955a681f8fe5af51a06
Contents?: true
Size: 1.84 KB
Versions: 8
Compression:
Stored size: 1.84 KB
Contents
# Basic cache implementation for restfulie.
#
# It uses the request headers and uri to store it in memory.
# This cache might not be optimal for long running clients, which should use a memcached based one.
# Use Restfulie::Client.cache_provider to change the provider
module Restfulie::Client::Cache
class Basic
def put(key, req, response)
if Restfulie::Client::Cache::Restrictions.may_cache?(response)
Restfulie::Common::Logger.logger.debug "caching #{key} #{response}"
cache_add(key, req, response)
end
response
end
def get(key, request)
response = cache_get(key, request)
return nil if response.nil?
if response.has_expired_cache?
remove(key)
else
Restfulie::Common::Logger.logger.debug "RETURNING cache #{key}"
cache_hit response
end
end
# removes all elements from the cache
def clear
cache.clear
end
protected
# allows you to redefine the cache store
def cache
Restfulie::Client.cache_store
end
private
# allows response enhancement when the cache was hit with it
def cache_hit(response)
response
end
def cache_add(key, req, response)
values = (cache.read(key) || []).dup
values << [req, response]
cache.write(key, values)
end
def cache_get(key, req)
return nil unless cache.exist?(key)
found = cache.read(key).find do |cached|
old_req = cached.first
old_response = cached.last
headers_match = old_response.vary_headers_for(old_req) == old_response.vary_headers_for(req)
if headers_match && old_response.verb == req.verb
old_response
else
false
end
end
found ? found.last : nil
end
def remove(key)
cache.delete(key)
nil
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems