Andrea Campanella | bb8775b | 2016-04-12 10:32:14 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 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.drivers.lumentum; |
| 18 | |
| 19 | import com.google.common.collect.ImmutableList; |
| 20 | import org.onosproject.incubator.net.faultmanagement.alarm.Alarm; |
| 21 | import org.onosproject.incubator.net.faultmanagement.alarm.AlarmConsumer; |
| 22 | import org.onosproject.incubator.net.faultmanagement.alarm.AlarmId; |
| 23 | import org.onosproject.incubator.net.faultmanagement.alarm.DefaultAlarm; |
| 24 | import org.onosproject.net.DeviceId; |
| 25 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 26 | import org.onosproject.snmp.SnmpController; |
| 27 | import org.onosproject.snmp.SnmpDevice; |
| 28 | import org.slf4j.Logger; |
| 29 | import org.snmp4j.smi.OID; |
| 30 | import org.snmp4j.smi.VariableBinding; |
| 31 | import org.snmp4j.util.TreeEvent; |
| 32 | |
| 33 | import java.io.IOException; |
| 34 | import java.util.ArrayList; |
| 35 | import java.util.List; |
| 36 | |
| 37 | import static com.google.common.base.Preconditions.checkNotNull; |
| 38 | import static org.onosproject.incubator.net.faultmanagement.alarm.Alarm.SeverityLevel; |
| 39 | import static org.slf4j.LoggerFactory.getLogger; |
| 40 | |
| 41 | /** |
| 42 | * Alarm Consumer for Lumentum devices. |
| 43 | */ |
| 44 | public class LumentumAlarmConsumer extends AbstractHandlerBehaviour implements AlarmConsumer { |
| 45 | |
| 46 | private final Logger log = getLogger(getClass()); |
| 47 | |
| 48 | private static final String ALARM_TABLE = ".1.3.6.1.4.1.46184.1.3.2"; |
| 49 | private static final String ALARM_ID = ".1.3.6.1.4.1.46184.1.3.2.1.1"; |
| 50 | private static final OID ALARMS_TABLE_OID = new OID(ALARM_TABLE); |
| 51 | private static final OID ALARMS_ID_OID = new OID(ALARM_ID); |
| 52 | private LumentumSnmpDevice snmp; |
| 53 | |
| 54 | @Override |
| 55 | public List<Alarm> consumeAlarms() { |
| 56 | |
| 57 | SnmpController controller = checkNotNull(handler().get(SnmpController.class)); |
| 58 | List<Alarm> alarms = new ArrayList<>(); |
| 59 | DeviceId deviceId = handler().data().deviceId(); |
| 60 | SnmpDevice device = controller.getDevice(deviceId); |
| 61 | try { |
| 62 | snmp = new LumentumSnmpDevice(device.getSnmpHost(), device.getSnmpPort()); |
| 63 | } catch (IOException e) { |
| 64 | log.error("Failed to connect to device: ", e); |
| 65 | } |
| 66 | |
| 67 | // Gets the alarm table and for each entry get the ID and create the proper alarm. |
Sho SHIMIZU | a09e1bb | 2016-08-01 14:25:25 -0700 | [diff] [blame] | 68 | snmp.get(ALARMS_TABLE_OID) |
Andrea Campanella | bb8775b | 2016-04-12 10:32:14 -0700 | [diff] [blame] | 69 | .forEach(alarm -> snmp.get(ALARMS_ID_OID).forEach(alarmIdEvent -> { |
| 70 | int alarmId = getAlarmId(alarmIdEvent); |
| 71 | alarms.add(new DefaultAlarm.Builder(deviceId, getMessage(alarmId), |
| 72 | getSeverity(alarmId), |
| 73 | System.currentTimeMillis()) |
| 74 | .withId(AlarmId.alarmId(alarmId)) |
| 75 | .build()); |
| 76 | })); |
| 77 | return ImmutableList.copyOf(alarms); |
| 78 | } |
| 79 | |
| 80 | //Walks the tree and retrieves the alarmId |
| 81 | private int getAlarmId(TreeEvent treeEvents) { |
| 82 | VariableBinding[] varBindings = treeEvents.getVariableBindings(); |
| 83 | for (VariableBinding varBinding : varBindings) { |
| 84 | return varBinding.getVariable().toInt(); |
| 85 | } |
| 86 | return -1; |
| 87 | } |
| 88 | |
| 89 | //Returns the severity level. |
| 90 | private SeverityLevel getSeverity(int alarmId) { |
| 91 | switch (alarmId) { |
| 92 | case 14: |
| 93 | return SeverityLevel.INDETERMINATE; |
| 94 | default: |
| 95 | return SeverityLevel.MAJOR; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | //Returns a string message based on the id of the alarm as per .mib file. |
| 100 | private String getMessage(int alarmId) { |
| 101 | switch (alarmId) { |
| 102 | case 1: |
| 103 | return "Port Los"; |
| 104 | case 2: |
| 105 | return "Port Degrade"; |
| 106 | case 3: |
| 107 | return "Port High Power"; |
| 108 | case 4: |
| 109 | return "Ta Failure"; |
| 110 | case 5: |
| 111 | return "Force Apr"; |
| 112 | case 6: |
| 113 | return "Force Shutoff"; |
| 114 | case 7: |
| 115 | return "Gain Oor"; |
| 116 | case 8: |
| 117 | return "Low Orl"; |
| 118 | case 9: |
| 119 | return "Apr"; |
| 120 | case 10: |
| 121 | return "Los Shutoff"; |
| 122 | case 11: |
| 123 | return "Amp Degrade"; |
| 124 | case 12: |
| 125 | return "Channel Los"; |
| 126 | case 13: |
| 127 | return "Channel Degrade"; |
| 128 | case 14: |
| 129 | return "Unsupported"; |
| 130 | default: |
| 131 | return "Unknown"; |
| 132 | } |
| 133 | } |
| 134 | } |