Andrea Campanella | 49f8838 | 2017-01-30 10:37:32 -0800 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2017-present Open Networking Foundation |
Andrea Campanella | 49f8838 | 2017-01-30 10:37:32 -0800 | [diff] [blame] | 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.faultmanagement.alarms.gui; |
| 18 | |
| 19 | import org.onosproject.incubator.net.faultmanagement.alarm.AlarmEvent; |
| 20 | import org.onosproject.incubator.net.faultmanagement.alarm.AlarmListener; |
| 21 | |
| 22 | /** |
| 23 | * Encapsulates the behavior of monitoring when new alarms are stored. |
| 24 | */ |
| 25 | public class AlarmMonitor { |
| 26 | |
| 27 | private final AlarmTopovMessageHandler messageHandler; |
| 28 | private final AlarmListener alarmListener = new TopoAlarmListener(); |
| 29 | private volatile boolean isMonitoring; |
| 30 | |
| 31 | |
| 32 | /** |
| 33 | * Constructs a traffic monitor. |
| 34 | * |
| 35 | * @param msgHandler the alarm message handler |
| 36 | */ |
| 37 | public AlarmMonitor(AlarmTopovMessageHandler msgHandler) { |
| 38 | messageHandler = msgHandler; |
| 39 | messageHandler.alarmService.addListener(alarmListener); |
| 40 | } |
| 41 | |
| 42 | /** |
| 43 | * Activates updating the alarms onf the GUI client. |
| 44 | */ |
| 45 | protected void startMonitorig() { |
| 46 | isMonitoring = true; |
| 47 | } |
| 48 | |
| 49 | /** |
| 50 | * De-activates updating the alarms onf the GUI client. |
| 51 | */ |
| 52 | protected void stopMonitoring() { |
| 53 | isMonitoring = false; |
| 54 | } |
| 55 | |
| 56 | //internal alarm listener |
| 57 | private class TopoAlarmListener implements AlarmListener { |
| 58 | |
| 59 | @Override |
| 60 | public void event(AlarmEvent event) { |
| 61 | if (isMonitoring) { |
| 62 | messageHandler.sendAlarmHighlights(); |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | } |