def updateUser(self, userJsonStr):
""" Update user
userJson: {screenName: "user", roles: [{roleTitle, roleName}, {roleTitle, roleName}]}
if the user does not exist yet, create it.
"""
logging.debug("[UserPrefs][updateUser] %s"% userJsonStr)
userJson = json.loads(userJsonStr)
user = userJson["screenName"]
grouplist = []
for g in userJson["roles"]:
grouplist.append(g["roleName"])
gsx = GsXml(self.config)
(code, message) = gsx.updateUserWithGroups(user, grouplist)
return (code, message)
