2 * Copyright IBM Corporation, 2013. 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
8 package org.opendaylight.controller.md.statistics.manager;
10 import java.util.Collection;
11 import java.util.Timer;
12 import java.util.concurrent.ConcurrentHashMap;
13 import java.util.concurrent.ConcurrentMap;
15 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
16 import org.opendaylight.controller.sal.binding.api.RpcConsumerRegistry;
17 import org.opendaylight.controller.sal.binding.api.data.DataChangeListener;
18 import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.statistics.rev130819.OpendaylightFlowStatisticsService;
21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.table.statistics.rev131215.OpendaylightFlowTableStatisticsService;
22 import org.opendaylight.yang.gen.v1.urn.opendaylight.group.statistics.rev131111.OpendaylightGroupStatisticsService;
23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
24 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.meter.statistics.rev131111.OpendaylightMeterStatisticsService;
28 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.OpendaylightPortStatisticsService;
29 import org.opendaylight.yang.gen.v1.urn.opendaylight.queue.statistics.rev131216.OpendaylightQueueStatisticsService;
30 import org.opendaylight.yangtools.concepts.ListenerRegistration;
31 import org.opendaylight.yangtools.concepts.Registration;
32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
33 import org.opendaylight.yangtools.yang.binding.NotificationListener;
34 import org.slf4j.Logger;
35 import org.slf4j.LoggerFactory;
37 import com.google.common.base.Preconditions;
40 * Following are main responsibilities of the class:
41 * 1) Invoke statistics request thread to send periodic statistics request to all the
42 * flow capable switch connected to the controller. It sends statistics request for
43 * Group,Meter,Table,Flow,Queue,Aggregate stats.
45 * 2) Invoke statistics ager thread, to clean up all the stale statistics data from
46 * operational data store.
48 * @author avishnoi@in.ibm.com
51 public class StatisticsProvider implements AutoCloseable {
52 private static final Logger spLogger = LoggerFactory.getLogger(StatisticsProvider.class);
54 private final ConcurrentMap<NodeId, NodeStatisticsHandler> handlers = new ConcurrentHashMap<>();
55 private final Timer timer = new Timer("statistics-manager", true);
56 private final DataProviderService dps;
58 private OpendaylightGroupStatisticsService groupStatsService;
60 private OpendaylightMeterStatisticsService meterStatsService;
62 private OpendaylightFlowStatisticsService flowStatsService;
64 private OpendaylightPortStatisticsService portStatsService;
66 private OpendaylightFlowTableStatisticsService flowTableStatsService;
68 private OpendaylightQueueStatisticsService queueStatsService;
70 private final StatisticsRequestScheduler srScheduler;
72 public StatisticsProvider(final DataProviderService dataService) {
73 this.dps = Preconditions.checkNotNull(dataService);
74 this.srScheduler = new StatisticsRequestScheduler();
77 private final StatisticsListener updateCommiter = new StatisticsListener(StatisticsProvider.this);
79 private Registration<NotificationListener> listenerRegistration;
81 private ListenerRegistration<DataChangeListener> flowCapableTrackerRegistration;
83 public void start(final NotificationProviderService nps, final RpcConsumerRegistry rpcRegistry) {
85 // Get Group/Meter statistics service instances
86 groupStatsService = rpcRegistry.getRpcService(OpendaylightGroupStatisticsService.class);
87 meterStatsService = rpcRegistry.getRpcService(OpendaylightMeterStatisticsService.class);
88 flowStatsService = rpcRegistry.getRpcService(OpendaylightFlowStatisticsService.class);
89 portStatsService = rpcRegistry.getRpcService(OpendaylightPortStatisticsService.class);
90 flowTableStatsService = rpcRegistry.getRpcService(OpendaylightFlowTableStatisticsService.class);
91 queueStatsService = rpcRegistry.getRpcService(OpendaylightQueueStatisticsService.class);
92 this.srScheduler.start();
94 // Start receiving notifications
95 this.listenerRegistration = nps.registerNotificationListener(this.updateCommiter);
97 // Register for switch connect/disconnect notifications
98 final InstanceIdentifier<FlowCapableNode> fcnId = InstanceIdentifier.builder(Nodes.class)
99 .child(Node.class).augmentation(FlowCapableNode.class).build();
100 spLogger.debug("Registering FlowCapable tracker to {}", fcnId);
101 this.flowCapableTrackerRegistration = dps.registerDataChangeListener(fcnId,
102 new FlowCapableTracker(this, fcnId));
104 spLogger.info("Statistics Provider started.");
108 * Get the handler for a particular node.
110 * @param nodeId source node
111 * @return Node statistics handler for that node. Null if the statistics should
114 public final NodeStatisticsHandler getStatisticsHandler(final NodeId nodeId) {
115 Preconditions.checkNotNull(nodeId);
116 NodeStatisticsHandler handler = handlers.get(nodeId);
117 if (handler == null) {
118 spLogger.info("Attempted to get non-existing handler for {}", nodeId);
124 public void close() {
126 if (this.listenerRegistration != null) {
127 this.listenerRegistration.close();
128 this.listenerRegistration = null;
130 if (this.flowCapableTrackerRegistration != null) {
131 this.flowCapableTrackerRegistration.close();
132 this.flowCapableTrackerRegistration = null;
135 } catch (Exception e) {
136 spLogger.warn("Failed to stop Statistics Provider completely", e);
138 spLogger.info("Statistics Provider stopped.");
142 void startNodeHandlers(final Collection<NodeKey> addedNodes) {
143 for (NodeKey key : addedNodes) {
144 if (handlers.containsKey(key.getId())) {
145 spLogger.warn("Attempted to start already-existing handler for {}, very strange", key.getId());
149 final NodeStatisticsHandler h = new NodeStatisticsHandler(dps, key,
150 flowStatsService, flowTableStatsService, groupStatsService,
151 meterStatsService, portStatsService, queueStatsService,srScheduler);
152 final NodeStatisticsHandler old = handlers.putIfAbsent(key.getId(), h);
154 spLogger.debug("Started node handler for {}", key.getId());
157 spLogger.debug("Prevented race on handler for {}", key.getId());
162 void stopNodeHandlers(final Collection<NodeKey> removedNodes) {
163 for (NodeKey key : removedNodes) {
164 final NodeStatisticsHandler s = handlers.remove(key.getId());
166 spLogger.debug("Stopping node handler for {}", key.getId());
169 spLogger.warn("Attempted to remove non-existing handler for {}, very strange", key.getId());