| /* |
| * Copyright 2016-present Open Networking Laboratory |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.onosproject.drivers.bti; |
| |
| import com.btisystems.mibbler.mibs.bti7000.bti7000_13_2_0.I_Device; |
| import com.btisystems.mibbler.mibs.bti7000.bti7000_13_2_0._OidRegistry; |
| import com.btisystems.mibbler.mibs.bti7000.bti7000_13_2_0.btisystems.btiproducts.bti7000.objects.conditions.ActAlarmTable; |
| import com.btisystems.mibbler.mibs.bti7000.interfaces.btisystems.btiproducts.bti7000.objects.conditions.IActAlarmTable; |
| import com.btisystems.pronx.ems.core.model.ClassRegistry; |
| import com.btisystems.pronx.ems.core.model.IClassRegistry; |
| import com.btisystems.pronx.ems.core.model.NetworkDevice; |
| import com.btisystems.pronx.ems.core.snmp.ISnmpSession; |
| import com.google.common.collect.ImmutableList; |
| import org.apache.commons.lang.StringUtils; |
| import org.onosproject.incubator.net.faultmanagement.alarm.Alarm; |
| import org.onosproject.incubator.net.faultmanagement.alarm.AlarmConsumer; |
| import org.onosproject.incubator.net.faultmanagement.alarm.AlarmEntityId; |
| import org.onosproject.incubator.net.faultmanagement.alarm.DefaultAlarm; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.onosproject.snmp.SnmpController; |
| import org.slf4j.Logger; |
| import org.snmp4j.smi.OctetString; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.Calendar; |
| import java.util.Collections; |
| import java.util.Date; |
| import java.util.GregorianCalendar; |
| import java.util.List; |
| import java.util.TimeZone; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| /** |
| * BTI 7000 specific implementation to provide a list of current alarms. |
| */ |
| public class Bti7000SnmpAlarmConsumer extends AbstractHandlerBehaviour implements AlarmConsumer { |
| private final Logger log = getLogger(getClass()); |
| protected static final IClassRegistry CLASS_REGISTRY = new ClassRegistry(_OidRegistry.oidRegistry, I_Device.class); |
| |
| static final int ALARM_SEVERITY_MINOR = 2; |
| static final int ALARM_SEVERITY_MAJOR = 3; |
| static final int ALARM_SEVERITY_CRITICAL = 4; |
| |
| |
| private Alarm.SeverityLevel mapAlarmSeverity(int intAlarmSeverity) { |
| Alarm.SeverityLevel mappedSeverity; |
| switch (intAlarmSeverity) { |
| case ALARM_SEVERITY_MINOR: |
| mappedSeverity = Alarm.SeverityLevel.MINOR; |
| break; |
| case ALARM_SEVERITY_MAJOR: |
| mappedSeverity = Alarm.SeverityLevel.MAJOR; |
| break; |
| case ALARM_SEVERITY_CRITICAL: |
| mappedSeverity = Alarm.SeverityLevel.CRITICAL; |
| break; |
| default: |
| mappedSeverity = Alarm.SeverityLevel.MINOR; |
| log.warn("Unexpected alarm severity: {}", intAlarmSeverity); |
| } |
| return mappedSeverity; |
| } |
| |
| /** |
| * Converts an SNMP string representation into a {@link Date} object, |
| * and applies time zone conversion to provide the time on the local machine, ie PSM server. |
| * |
| * @param actAlarmDateAndTime MIB-II DateAndTime formatted. May optionally contain |
| * a timezone offset in 3 extra bytes |
| * @param sysInfoTimeZone Must be supplied if actAlarmDateAndTime is just local time (with no timezone) |
| * @param swVersion Must be supplied if actAlarmDateAndTime is just local time (with no timezone) |
| * @return adjusted {@link Date} or a simple conversion if other fields are null. |
| */ |
| public static Date getLocalDateAndTime(String actAlarmDateAndTime, String sysInfoTimeZone, |
| String swVersion) { |
| if (StringUtils.isBlank(actAlarmDateAndTime)) { |
| return null; |
| } |
| |
| GregorianCalendar decodedDateAndTimeCal = btiMakeCalendar(OctetString.fromHexString(actAlarmDateAndTime)); |
| if ((sysInfoTimeZone == null) || (swVersion == null)) { |
| return decodedDateAndTimeCal.getTime(); |
| } |
| |
| TimeZone javaTimeZone = getTimeZone(); |
| decodedDateAndTimeCal.setTimeZone(javaTimeZone); |
| |
| GregorianCalendar localTime = new GregorianCalendar(); |
| localTime.setTimeInMillis(decodedDateAndTimeCal.getTimeInMillis()); |
| |
| return localTime.getTime(); |
| } |
| |
| /** |
| * This method is similar to SNMP4J approach with some fixes for the 11-bytes version (ie the one with timezone |
| * offset). |
| * <p> |
| * For original makeCalendar refer @see http://www.snmp4j.org/agent/doc/org/snmp4j/agent/mo/snmp/DateAndTime.html |
| * <p> |
| * Creates a <code>GregorianCalendar</code> from a properly formatted SNMP4J DateAndTime <code>OctetString</code>. |
| * |
| * @param dateAndTimeValue an OctetString conforming to the DateAndTime TC. |
| * @return the corresponding <code>GregorianCalendar</code> instance. |
| */ |
| public static GregorianCalendar btiMakeCalendar(OctetString dateAndTimeValue) { |
| int year = (dateAndTimeValue.get(0) & 0xFF) * 256 |
| + (dateAndTimeValue.get(1) & 0xFF); |
| int month = (dateAndTimeValue.get(2) & 0xFF); |
| int date = (dateAndTimeValue.get(3) & 0xFF); |
| int hour = (dateAndTimeValue.get(4) & 0xFF); |
| int minute = (dateAndTimeValue.get(5) & 0xFF); |
| int second = (dateAndTimeValue.get(6) & 0xFF); |
| int deci = (dateAndTimeValue.get(7) & 0xFF); |
| GregorianCalendar gc = |
| new GregorianCalendar(year, month - 1, date, hour, minute, second); |
| gc.set(Calendar.MILLISECOND, deci * 100); |
| |
| if (dateAndTimeValue.length() == 11) { |
| char directionOfOffset = (char) dateAndTimeValue.get(8); |
| int hoursOffset = directionOfOffset == '+' |
| ? dateAndTimeValue.get(9) : -dateAndTimeValue.get(9); |
| org.joda.time.DateTimeZone offset = |
| org.joda.time.DateTimeZone.forOffsetHoursMinutes(hoursOffset, dateAndTimeValue.get(10)); |
| org.joda.time.DateTime dt = |
| new org.joda.time.DateTime(year, month, date, hour, minute, second, offset); |
| return dt.toGregorianCalendar(); |
| } |
| return gc; |
| } |
| |
| private static TimeZone getTimeZone() { |
| return Calendar.getInstance().getTimeZone(); |
| } |
| |
| @Override |
| public List<Alarm> consumeAlarms() { |
| SnmpController controller = checkNotNull(handler().get(SnmpController.class)); |
| ISnmpSession session; |
| List<Alarm> alarms = new ArrayList<>(); |
| DeviceId deviceId = handler().data().deviceId(); |
| try { |
| session = controller.getSession(deviceId); |
| log.debug("Getting alarms for BTI 7000 device at {}", deviceId); |
| NetworkDevice networkDevice = new NetworkDevice(CLASS_REGISTRY, |
| session.getAddress().getHostAddress()); |
| session.walkDevice(networkDevice, Collections.singletonList( |
| CLASS_REGISTRY.getClassToOidMap().get(ActAlarmTable.class))); |
| |
| IActAlarmTable deviceAlarms = (IActAlarmTable) networkDevice.getRootObject() |
| .getEntity(CLASS_REGISTRY.getClassToOidMap().get(ActAlarmTable.class)); |
| if ((deviceAlarms != null) && (deviceAlarms.getActAlarmEntry() != null) |
| && (!deviceAlarms.getActAlarmEntry().isEmpty())) { |
| |
| deviceAlarms.getActAlarmEntry().values().forEach((alarm) -> { |
| DefaultAlarm.Builder alarmBuilder = new DefaultAlarm.Builder( |
| deviceId, alarm.getActAlarmDescription(), |
| mapAlarmSeverity(alarm.getActAlarmSeverity()), |
| getLocalDateAndTime(alarm.getActAlarmDateAndTime(), null, null).getTime()) |
| .forSource(AlarmEntityId.alarmEntityId("other:" + alarm.getActAlarmInstanceIdx())); |
| alarms.add(alarmBuilder.build()); |
| }); |
| |
| } |
| log.debug("Conditions retrieved: {}", deviceAlarms); |
| |
| } catch (IOException ex) { |
| log.error("Error reading alarms for device {}.", deviceId, ex); |
| alarms.add(controller.buildWalkFailedAlarm(deviceId)); |
| |
| } |
| |
| return ImmutableList.copyOf(alarms); |
| } |
| } |