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;
11 import com.google.common.util.concurrent.FutureCallback;
12 import com.google.common.util.concurrent.Futures;
13 import com.google.common.util.concurrent.ListenableFuture;
14 import io.netty.util.HashedWheelTimer;
15 import io.netty.util.Timeout;
16 import io.netty.util.TimerTask;
17 import java.util.concurrent.ConcurrentHashMap;
18 import java.util.concurrent.TimeUnit;
19 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
20 import org.opendaylight.openflowplugin.api.openflow.device.handlers.DeviceInitializationPhaseHandler;
21 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsContext;
22 import org.opendaylight.openflowplugin.api.openflow.statistics.StatisticsManager;
23 import org.slf4j.Logger;
24 import org.slf4j.LoggerFactory;
27 * Created by Martin Bobak <mbobak@cisco.com> on 1.4.2015.
29 public class StatisticsManagerImpl implements StatisticsManager {
31 private static final Logger LOG = LoggerFactory.getLogger(StatisticsManagerImpl.class);
33 private DeviceInitializationPhaseHandler deviceInitPhaseHandler;
35 private HashedWheelTimer hashedWheelTimer;
37 private ConcurrentHashMap<DeviceContext, StatisticsContext> contexts = new ConcurrentHashMap();
40 public void setDeviceInitializationPhaseHandler(final DeviceInitializationPhaseHandler handler) {
41 deviceInitPhaseHandler = handler;
45 public void onDeviceContextLevelUp(final DeviceContext deviceContext) {
47 if (null == hashedWheelTimer) {
48 LOG.trace("This is first device that delivered timer. Starting statistics polling immediately.");
49 hashedWheelTimer = deviceContext.getTimer();
53 final StatisticsContext statisticsContext = new StatisticsContextImpl(deviceContext);
54 deviceContext.addDeviceContextClosedHandler(this);
55 final ListenableFuture<Boolean> weHaveDynamicData = statisticsContext.gatherDynamicData();
56 Futures.addCallback(weHaveDynamicData, new FutureCallback<Boolean>() {
58 public void onSuccess(final Boolean statisticsGathered) {
59 if (statisticsGathered.booleanValue()) {
60 //there are some statistics on device worth gathering
61 contexts.put(deviceContext, statisticsContext);
63 LOG.trace("Device dynamic info collecting done. Going to announce raise to next level.");
64 deviceInitPhaseHandler.onDeviceContextLevelUp(deviceContext);
65 deviceContext.getDeviceState().setDeviceSynchronized(true);
69 public void onFailure(final Throwable throwable) {
70 LOG.warn("Statistics manager was not able to collect dynamic info for device.", deviceContext.getDeviceState().getNodeId(), throwable);
72 deviceContext.close();
73 } catch (Exception e) {
74 LOG.warn("Error closing device context.", e);
80 private void pollStatistics() {
81 for (final StatisticsContext statisticsContext : contexts.values()) {
82 ListenableFuture deviceStatisticsCollectionFuture = statisticsContext.gatherDynamicData();
83 Futures.addCallback(deviceStatisticsCollectionFuture, new FutureCallback() {
85 public void onSuccess(final Object o) {
90 public void onFailure(final Throwable throwable) {
91 LOG.info("Statistics gathering for single node was not successful.");
95 if (null != hashedWheelTimer) {
96 hashedWheelTimer.newTimeout(new TimerTask() {
98 public void run(final Timeout timeout) throws Exception {
101 }, 3000, TimeUnit.MILLISECONDS);
106 public void onDeviceContextClosed(final DeviceContext deviceContext) {
107 if (contexts.containsKey(deviceContext)) {
108 LOG.trace("Removing device context from stack. No more statistics gathering for node {}", deviceContext.getDeviceState().getNodeId());
109 contexts.remove(deviceContext);
110 StatisticsContext statisticsContext = contexts.remove(deviceContext);
112 statisticsContext.close();
113 } catch (Exception e) {
114 LOG.debug("Error closing statistic context for node {}.", deviceContext.getDeviceState().getNodeId());