| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.opencord.aaa.impl; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.atomic.AtomicLong; |
| |
| import org.apache.felix.scr.annotations.Component; |
| import org.apache.felix.scr.annotations.Service; |
| import org.onosproject.event.AbstractListenerManager; |
| import org.opencord.aaa.AaaStatistics; |
| import org.opencord.aaa.AuthenticationStatisticsDelegate; |
| import org.opencord.aaa.AuthenticationStatisticsEvent; |
| import org.opencord.aaa.AuthenticationStatisticsEventListener; |
| import org.opencord.aaa.AuthenticationStatisticsService; |
| import org.apache.felix.scr.annotations.Activate; |
| import org.apache.felix.scr.annotations.Deactivate; |
| import org.slf4j.Logger; |
| |
| |
| @Service |
| @Component(immediate = true) |
| public class AaaStatisticsManager |
| extends AbstractListenerManager<AuthenticationStatisticsEvent, AuthenticationStatisticsEventListener> |
| implements AuthenticationStatisticsService { |
| |
| private AuthenticationStatisticsDelegate statsDelegate; |
| |
| @Override |
| public AuthenticationStatisticsDelegate getStatsDelegate() { |
| return statsDelegate; |
| } |
| |
| private final Logger log = getLogger(getClass()); |
| private AaaStatistics aaaStats; |
| public Map<Byte, Long> outgoingPacketMap = new HashMap<Byte, Long>(); |
| private static final int PACKET_COUNT_FOR_AVERAGE_RTT_CALCULATION = 5; |
| |
| @Override |
| public AaaStatistics getAaaStats() { |
| return aaaStats; |
| } |
| |
| @Activate |
| public void activate() { |
| log.info("Activate aaaStatisticsManager"); |
| aaaStats = new AaaStatistics(); |
| statsDelegate = new InternalAuthenticationDelegateForStatistics(); |
| eventDispatcher.addSink(AuthenticationStatisticsEvent.class, listenerRegistry); |
| } |
| |
| @Deactivate |
| public void deactivate() { |
| eventDispatcher.removeSink(AuthenticationStatisticsEvent.class); |
| } |
| |
| @Override |
| public void handleRoundtripTime(byte inPacketIdentifier) { |
| long inTimeInMilis = System.currentTimeMillis(); |
| if (outgoingPacketMap.containsKey(inPacketIdentifier)) { |
| if (aaaStats.getPacketRoundTripTimeListSize() > PACKET_COUNT_FOR_AVERAGE_RTT_CALCULATION) { |
| aaaStats.getPacketRoundTripTimeListRemoveFirst(); |
| } |
| aaaStats.getPacketRoundTripTimeListAdd(inTimeInMilis - outgoingPacketMap.get(inPacketIdentifier)); |
| } |
| } |
| |
| @Override |
| public void resetAllCounters() { |
| aaaStats.resetAllCounters(); |
| } |
| |
| @Override |
| public void calculatePacketRoundtripTime() { |
| if (aaaStats.getPacketRoundTripTimeListSize() > 0) { |
| long avg = (long) aaaStats.getPacketRoundTripTimeList().stream().mapToLong(i -> i).average().getAsDouble(); |
| aaaStats.setRequestRttMilis(new AtomicLong(avg)); |
| } |
| } |
| |
| @Override |
| public void putOutgoingIdentifierToMap(byte outPacketIdentifier) { |
| outgoingPacketMap.put(outPacketIdentifier, System.currentTimeMillis()); |
| } |
| |
| /** |
| *Delegate allowing the StateMachine to notify us of events. |
| */ |
| private class InternalAuthenticationDelegateForStatistics implements AuthenticationStatisticsDelegate { |
| @Override |
| public void notify(AuthenticationStatisticsEvent authenticationStatisticsEvent) { |
| log.debug("Authentication Statistics event {} for {}", authenticationStatisticsEvent.type(), |
| authenticationStatisticsEvent.subject()); |
| post(authenticationStatisticsEvent); |
| } |
| } |
| } |