erp5_bearer_token: support pass a different cache factory name

bt5/erp5_bearer_token/ExtensionTemplateItem/portal_components/extension.erp5.BearerToken.py

 import hmac
 from Products.ERP5Type.Cache import DEFAULT_CACHE_SCOPE
 
+CACHE_FACTORY_NAME = 'bearer_token_cache_factory'
+
 def getHMAC(self, key, body):
   digest = hmac.new(key, body)
   return digest.hexdigest()
 
-def _getCacheFactory(self):
+def _getCacheFactory(self, cache_factory_name):
   portal = self.getPortalObject()
   cache_tool = portal.portal_caches
-  cache_factory_name = 'bearer_token_cache_factory'
   cache_factory = cache_tool.getRamCacheRoot().get(cache_factory_name)
   #XXX This conditional statement should be remove as soon as
   #Broadcasting will be enable among all zeo clients.
@@ -19,15 +20,15 @@ def _getCacheFactory(self):
     cache_tool.updateCache()
   return cache_tool.getRamCacheRoot().get(cache_factory_name)
 
-def setBearerToken(self, key, body):
-  cache_factory = _getCacheFactory(self)
+def setBearerToken(self, key, body, cache_factory_name=CACHE_FACTORY_NAME):
+  cache_factory = _getCacheFactory(self, cache_factory_name)
   cache_duration = cache_factory.cache_duration
   for cache_plugin in cache_factory.getCachePluginList():
     cache_plugin.set(key, DEFAULT_CACHE_SCOPE,
                      body, cache_duration=cache_duration)
 
-def getBearerToken(self, key):
-  cache_factory = _getCacheFactory(self)
+def getBearerToken(self, key, cache_factory_name=CACHE_FACTORY_NAME):
+  cache_factory = _getCacheFactory(self, cache_factory_name)
   for cache_plugin in cache_factory.getCachePluginList():
     cache_entry = cache_plugin.get(key, DEFAULT_CACHE_SCOPE)
     if cache_entry is not None: