2 * Copyright (c) 2013 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.openflow.md.core.session;
11 import com.google.common.util.concurrent.ListeningExecutorService;
12 import java.util.Arrays;
13 import java.util.Collection;
14 import java.util.List;
16 import java.util.Map.Entry;
17 import java.util.concurrent.ConcurrentHashMap;
18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
19 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
20 import org.opendaylight.openflowplugin.api.openflow.md.core.SwitchConnectionDistinguisher;
21 import org.opendaylight.openflowplugin.api.openflow.md.core.TranslatorKey;
22 import org.opendaylight.openflowplugin.api.openflow.md.core.session.SessionContext;
23 import org.opendaylight.openflowplugin.api.openflow.md.core.session.SessionListener;
24 import org.opendaylight.openflowplugin.api.openflow.md.core.session.SwitchSessionKeyOF;
25 import org.opendaylight.openflowplugin.api.statistics.MessageSpy;
26 import org.opendaylight.openflowplugin.api.openflow.md.core.ConnectionConductor;
27 import org.opendaylight.openflowplugin.api.openflow.md.core.IMDMessageTranslator;
28 import org.opendaylight.openflowplugin.extension.api.core.extension.ExtensionConverterProvider;
29 import org.opendaylight.openflowplugin.api.openflow.md.queue.PopListener;
30 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
31 import org.opendaylight.yangtools.concepts.ListenerRegistration;
32 import org.opendaylight.yangtools.concepts.util.ListenerRegistry;
33 import org.opendaylight.yangtools.yang.binding.DataContainer;
34 import org.opendaylight.yangtools.yang.binding.DataObject;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
41 public class SessionManagerOFImpl implements ConjunctSessionManager {
43 protected static final Logger LOG = LoggerFactory.getLogger(SessionManagerOFImpl.class);
44 private static SessionManagerOFImpl instance;
45 private ConcurrentHashMap<SwitchSessionKeyOF, SessionContext> sessionLot;
46 private Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> translatorMapping;
47 private Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> popListenerMapping;
49 protected ListenerRegistry<SessionListener> sessionListeners;
50 private NotificationProviderService notificationProviderService;
52 private DataBroker dataBroker;
53 private ListeningExecutorService rpcPool;
57 * @return singleton instance
59 public static ConjunctSessionManager getInstance() {
60 if (instance == null) {
61 synchronized (SessionContextOFImpl.class) {
62 if (instance == null) {
63 instance = new SessionManagerOFImpl();
71 * close and release singleton instace
73 public static void releaseInstance() {
74 if (instance != null) {
75 synchronized (SessionManagerOFImpl.class) {
76 if (instance != null) {
84 private SessionManagerOFImpl() {
85 LOG.debug("singleton creating");
86 sessionLot = new ConcurrentHashMap<>();
87 sessionListeners = new ListenerRegistry<>();
91 public SessionContext getSessionContext(SwitchSessionKeyOF sessionKey) {
92 return sessionLot.get(sessionKey);
96 public void invalidateSessionContext(SwitchSessionKeyOF sessionKey) {
97 SessionContext context = getSessionContext(sessionKey);
98 if (context == null) {
99 LOG.warn("context for invalidation not found");
101 synchronized (context) {
102 for (Entry<SwitchConnectionDistinguisher, ConnectionConductor> auxEntry : context.getAuxiliaryConductors()) {
103 invalidateAuxiliary(sessionKey, auxEntry.getKey());
105 context.getPrimaryConductor().disconnect();
106 context.setValid(false);
107 removeSessionContext(context);
108 // TODO:: notify listeners
113 private void invalidateDeadSessionContext(SessionContext sessionContext) {
114 if (sessionContext == null) {
115 LOG.warn("context for invalidation not found");
117 synchronized (sessionContext) {
118 for (Entry<SwitchConnectionDistinguisher, ConnectionConductor> auxEntry : sessionContext
119 .getAuxiliaryConductors()) {
120 invalidateAuxiliary(sessionContext, auxEntry.getKey(), true);
122 sessionContext.setValid(false);
123 removeSessionContext(sessionContext);
124 // TODO:: notify listeners
129 private void removeSessionContext(SessionContext sessionContext) {
130 if (LOG.isDebugEnabled()) {
131 LOG.debug("removing session: {}", Arrays.toString(sessionContext.getSessionKey().getId()));
133 sessionLot.remove(sessionContext.getSessionKey(), sessionContext);
134 sessionNotifier.onSessionRemoved(sessionContext);
138 public void addSessionContext(SwitchSessionKeyOF sessionKey, SessionContext context) {
139 synchronized (context) {
140 sessionLot.put(sessionKey, context);
141 sessionNotifier.onSessionAdded(sessionKey, context);
143 context.setValid(true);
148 public void invalidateAuxiliary(SwitchSessionKeyOF sessionKey,
149 SwitchConnectionDistinguisher connectionCookie) {
150 SessionContext context = getSessionContext(sessionKey);
151 invalidateAuxiliary(context, connectionCookie, true);
156 * @param connectionCookie
157 * @param disconnect true if auxiliary connection is to be disconnected
159 private static void invalidateAuxiliary(SessionContext context, SwitchConnectionDistinguisher connectionCookie,
160 boolean disconnect) {
161 if (context == null) {
162 LOG.warn("context for invalidation not found");
164 ConnectionConductor auxiliaryConductor = context.removeAuxiliaryConductor(connectionCookie);
165 if (auxiliaryConductor == null) {
166 LOG.warn("auxiliary conductor not found");
169 auxiliaryConductor.disconnect();
176 public void invalidateOnDisconnect(ConnectionConductor conductor) {
177 if (conductor.getAuxiliaryKey() == null) {
178 invalidateDeadSessionContext(conductor.getSessionContext());
179 // TODO:: notify listeners
181 invalidateAuxiliary(conductor.getSessionContext(), conductor.getAuxiliaryKey(), false);
186 public void setTranslatorMapping(Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> translatorMapping) {
187 this.translatorMapping = translatorMapping;
191 public ListenerRegistration<SessionListener> registerSessionListener(SessionListener listener) {
192 LOG.debug("registerSessionListener");
193 return sessionListeners.register(listener);
196 private final SessionListener sessionNotifier = new SessionListener() {
199 public void onSessionAdded(SwitchSessionKeyOF sessionKey, SessionContext context) {
200 for (ListenerRegistration<SessionListener> listener : sessionListeners) {
202 listener.getInstance().onSessionAdded(sessionKey, context);
203 } catch (Exception e) {
204 LOG.error("Unhandled exeption occured while invoking onSessionAdded on listener", e);
210 public void onSessionRemoved(SessionContext context) {
211 for (ListenerRegistration<SessionListener> listener : sessionListeners) {
213 listener.getInstance().onSessionRemoved(context);
214 } catch (Exception e) {
215 LOG.error("Unhandled exeption occured while invoking onSessionRemoved on listener", e);
220 private MessageSpy<DataContainer> messageSpy;
221 private ExtensionConverterProvider extensionConverterProvider;
225 public Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> getTranslatorMapping() {
226 return this.translatorMapping;
230 public void setNotificationProviderService(
231 NotificationProviderService notificationProviderService) {
232 this.notificationProviderService = notificationProviderService;
237 public DataBroker getDataBroker() {
242 public void setDataBroker(DataBroker dataBroker) {
243 this.dataBroker = dataBroker;
248 public NotificationProviderService getNotificationProviderService() {
249 return notificationProviderService;
253 public Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> getPopListenerMapping() {
254 return popListenerMapping;
258 public void setPopListenerMapping(
259 Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> popListenerMapping) {
260 this.popListenerMapping = popListenerMapping;
264 public void close() {
266 sessionListeners = null;
267 synchronized (sessionLot) {
268 for (SessionContext sessionContext : sessionLot.values()) {
269 sessionContext.getPrimaryConductor().disconnect();
271 // TODO: handle timeouted shutdown
277 public void setRpcPool(ListeningExecutorService rpcPool) {
278 this.rpcPool = rpcPool;
282 public ListeningExecutorService getRpcPool() {
287 public void setMessageSpy(MessageSpy<DataContainer> messageSpy) {
288 this.messageSpy = messageSpy;
292 public MessageSpy<DataContainer> getMessageSpy() {
297 public void setExtensionConverterProvider(
298 ExtensionConverterProvider extensionConverterProvider) {
299 this.extensionConverterProvider = extensionConverterProvider;
303 * @return the extensionConverterProvider
306 public ExtensionConverterProvider getExtensionConverterProvider() {
307 return extensionConverterProvider;