2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
9 package org.opendaylight.openflowplugin.impl.statistics.ofpspecific;
11 import java.util.ArrayList;
12 import java.util.List;
14 import java.util.Map.Entry;
15 import java.util.concurrent.ConcurrentHashMap;
16 import java.util.concurrent.ConcurrentMap;
17 import java.util.concurrent.atomic.AtomicLongFieldUpdater;
18 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageIntelligenceAgency;
19 import org.slf4j.Logger;
20 import org.slf4j.LoggerFactory;
23 * Implementation of {@link org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageIntelligenceAgency}.
24 * Class counts message of {@link org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.MessageSpy.STATISTIC_GROUP} type
25 * and provides info as debug log.
27 public class MessageIntelligenceAgencyImpl implements MessageIntelligenceAgency<Class>, MessageIntelligenceAgencyMXBean {
29 private static final Logger LOG = LoggerFactory.getLogger(MessageIntelligenceAgencyImpl.class);
31 private static final class MessageCounters {
32 private static final AtomicLongFieldUpdater<MessageCounters> UPDATER = AtomicLongFieldUpdater.newUpdater(MessageCounters.class, "current");
33 private volatile long current;
34 private long cumulative;
36 public synchronized long accumulate() {
37 final long inc = UPDATER.getAndSet(this, 0);
42 public synchronized long getCumulative() {
46 public long increment() {
47 return UPDATER.incrementAndGet(this);
51 private final ConcurrentMap<STATISTIC_GROUP, ConcurrentMap<Class, MessageCounters>> inputStats = new ConcurrentHashMap<>();
54 public void spyMessage(final Class message, final STATISTIC_GROUP statGroup) {
55 getCounters(message, statGroup).increment();
60 * @param statGroup TODO
63 private MessageCounters getCounters(final Class message, final STATISTIC_GROUP statGroup) {
64 ConcurrentMap<Class, MessageCounters> groupData = getOrCreateGroupData(statGroup);
65 MessageCounters counters = getOrCreateCountersPair(message, groupData);
69 private static MessageCounters getOrCreateCountersPair(final Class msgType, final ConcurrentMap<Class, MessageCounters> groupData) {
70 final MessageCounters lookup = groupData.get(msgType);
75 final MessageCounters newCounters = new MessageCounters();
76 final MessageCounters check = groupData.putIfAbsent(msgType, newCounters);
77 return check == null ? newCounters : check;
81 private ConcurrentMap<Class, MessageCounters> getOrCreateGroupData(final STATISTIC_GROUP statGroup) {
82 final ConcurrentMap<Class, MessageCounters> lookup = inputStats.get(statGroup);
87 final ConcurrentMap<Class, MessageCounters> newmap = new ConcurrentHashMap<>();
88 final ConcurrentMap<Class, MessageCounters> check = inputStats.putIfAbsent(statGroup, newmap);
90 return check == null ? newmap : check;
95 // log current counters and cleans it
96 if (LOG.isDebugEnabled()) {
97 for (String counterItem : provideIntelligence()) {
98 LOG.debug(counterItem);
104 public List<String> provideIntelligence() {
105 List<String> dump = new ArrayList<>();
107 for (STATISTIC_GROUP statGroup : STATISTIC_GROUP.values()) {
108 Map<Class, MessageCounters> groupData = inputStats.get(statGroup);
109 if (groupData != null) {
110 for (Entry<Class, MessageCounters> statEntry : groupData.entrySet()) {
111 long amountPerInterval = statEntry.getValue().accumulate();
112 long cumulativeAmount = statEntry.getValue().getCumulative();
113 dump.add(String.format("%s: MSG[%s] -> +%d | %d",
115 statEntry.getKey().getSimpleName(),
116 amountPerInterval, cumulativeAmount));
119 dump.add(String.format("%s: no activity detected", statGroup));