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Lazy require memcache for session middleware

This commit is contained in:
Joshua Peek 2009-09-13 15:30:55 -05:00
parent fff3f0ae0c
commit a01bf41c61

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@ -1,52 +1,47 @@
require "active_support/core_ext/kernel/requires"
begin
require_library_or_gem 'memcache'
module ActionDispatch
module Session
class MemCacheStore < AbstractStore
def initialize(app, options = {})
require 'memcache'
module ActionDispatch
module Session
class MemCacheStore < AbstractStore
def initialize(app, options = {})
# Support old :expires option
options[:expire_after] ||= options[:expires]
# Support old :expires option
options[:expire_after] ||= options[:expires]
super
super
@default_options = {
:namespace => 'rack:session',
:memcache_server => 'localhost:11211'
}.merge(@default_options)
@default_options = {
:namespace => 'rack:session',
:memcache_server => 'localhost:11211'
}.merge(@default_options)
@pool = options[:cache] || MemCache.new(@default_options[:memcache_server], @default_options)
unless @pool.servers.any? { |s| s.alive? }
raise "#{self} unable to find server during initialization."
@pool = options[:cache] || MemCache.new(@default_options[:memcache_server], @default_options)
unless @pool.servers.any? { |s| s.alive? }
raise "#{self} unable to find server during initialization."
end
@mutex = Mutex.new
super
end
private
def get_session(env, sid)
sid ||= generate_sid
begin
session = @pool.get(sid) || {}
rescue MemCache::MemCacheError, Errno::ECONNREFUSED
session = {}
end
@mutex = Mutex.new
super
[sid, session]
end
private
def get_session(env, sid)
sid ||= generate_sid
begin
session = @pool.get(sid) || {}
rescue MemCache::MemCacheError, Errno::ECONNREFUSED
session = {}
end
[sid, session]
end
def set_session(env, sid, session_data)
options = env['rack.session.options']
expiry = options[:expire_after] || 0
@pool.set(sid, session_data, expiry)
return true
rescue MemCache::MemCacheError, Errno::ECONNREFUSED
return false
end
end
def set_session(env, sid, session_data)
options = env['rack.session.options']
expiry = options[:expire_after] || 0
@pool.set(sid, session_data, expiry)
return true
rescue MemCache::MemCacheError, Errno::ECONNREFUSED
return false
end
end
end
rescue LoadError
# MemCache wasn't available so neither can the store be
end