{
    "query" : {
        "match_all": {}
    },
    "script_fields" : {
        "timeSince" : {
            "script" : {
                "lang": "painless",
                "source": "
long now = System.currentTimeMillis();
if (doc.get('closedLoopEventStatus.keyword').value == 'ABATED') {
   return now - doc.get('closedLoopAlarmEnd').value;
}
if (doc.get('closedLoopEventStatus.keyword').value == 'ONSET') {
   return now - doc.get('closedLoopAlarmStart').value;
}
if (doc.containsKey('notification.keyword')) {
   return now - doc.get('notificationTime').value;
}

return null
"
            }
        }
        , "closedLoopAlarmStart" : {
            "script" : {
                "lang": "painless",
                "source": "doc['closedLoopAlarmStart']"
            }
        }
        , "closedLoopEventStatus" : {
            "script" : {
                "lang": "painless",
                "source": "doc['closedLoopEventStatus.keyword']"
            }
        }
        , "notification" : {
            "script" : {
                "lang": "painless",
                "source": "doc['notification.keyword']"
            }
        }
        , "notificationTime" : {
            "script" : {
                "lang": "painless",
                "source": "doc['notificationTime'].value"
            }
        }

    }
}