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.ConnectionConductor;
21 import org.opendaylight.openflowplugin.api.openflow.md.core.IMDMessageTranslator;
22 import org.opendaylight.openflowplugin.api.openflow.md.core.SwitchConnectionDistinguisher;
23 import org.opendaylight.openflowplugin.api.openflow.md.core.TranslatorKey;
24 import org.opendaylight.openflowplugin.api.openflow.md.core.session.SessionContext;
25 import org.opendaylight.openflowplugin.api.openflow.md.core.session.SessionListener;
26 import org.opendaylight.openflowplugin.api.openflow.md.core.session.SwitchSessionKeyOF;
27 import org.opendaylight.openflowplugin.api.openflow.md.queue.PopListener;
28 import org.opendaylight.openflowplugin.api.openflow.statistics.MessageSpy;
29 import org.opendaylight.openflowplugin.extension.api.core.extension.ExtensionConverterProvider;
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.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 instance
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.info("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.info("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);
142 context.setValid(true);
147 public void setRole(SessionContext context) {
148 sessionNotifier.setRole(context);
151 public void invalidateAuxiliary(SwitchSessionKeyOF sessionKey,
152 SwitchConnectionDistinguisher connectionCookie) {
153 SessionContext context = getSessionContext(sessionKey);
154 invalidateAuxiliary(context, connectionCookie, true);
159 * @param connectionCookie
160 * @param disconnect true if auxiliary connection is to be disconnected
162 private static void invalidateAuxiliary(SessionContext context, SwitchConnectionDistinguisher connectionCookie,
163 boolean disconnect) {
164 if (context == null) {
165 LOG.info("context for invalidation not found");
167 ConnectionConductor auxiliaryConductor = context.removeAuxiliaryConductor(connectionCookie);
168 if (auxiliaryConductor == null) {
169 LOG.warn("auxiliary conductor not found");
172 auxiliaryConductor.disconnect();
179 public void invalidateOnDisconnect(ConnectionConductor conductor) {
180 if (conductor.getAuxiliaryKey() == null) {
181 invalidateDeadSessionContext(conductor.getSessionContext());
182 // TODO:: notify listeners
184 invalidateAuxiliary(conductor.getSessionContext(), conductor.getAuxiliaryKey(), false);
189 public void setTranslatorMapping(Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> translatorMapping) {
190 this.translatorMapping = translatorMapping;
194 public ListenerRegistration<SessionListener> registerSessionListener(SessionListener listener) {
195 LOG.debug("registerSessionListener");
196 return sessionListeners.register(listener);
199 private final SessionListener sessionNotifier = new SessionListener() {
202 public void onSessionAdded(SwitchSessionKeyOF sessionKey, SessionContext context) {
203 for (ListenerRegistration<SessionListener> listener : sessionListeners) {
205 listener.getInstance().onSessionAdded(sessionKey, context);
206 } catch (Exception e) {
207 LOG.error("Unhandled exeption occured while invoking onSessionAdded on listener", e);
213 public void setRole(SessionContext context) {
214 for (ListenerRegistration<SessionListener> listener : sessionListeners) {
216 listener.getInstance().setRole(context);
217 } catch (Exception e) {
218 LOG.error("Unhandled exeption occured while invoking setRole on listener", e);
224 public void onSessionRemoved(SessionContext context) {
225 for (ListenerRegistration<SessionListener> listener : sessionListeners) {
227 listener.getInstance().onSessionRemoved(context);
228 } catch (Exception e) {
229 LOG.error("Unhandled exeption occured while invoking onSessionRemoved on listener", e);
234 private MessageSpy<DataContainer> messageSpy;
235 private ExtensionConverterProvider extensionConverterProvider;
239 public Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> getTranslatorMapping() {
240 return this.translatorMapping;
244 public void setNotificationProviderService(
245 NotificationProviderService notificationProviderService) {
246 this.notificationProviderService = notificationProviderService;
251 public DataBroker getDataBroker() {
256 public void setDataBroker(DataBroker dataBroker) {
257 this.dataBroker = dataBroker;
262 public NotificationProviderService getNotificationProviderService() {
263 return notificationProviderService;
267 public Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> getPopListenerMapping() {
268 return popListenerMapping;
272 public void setPopListenerMapping(
273 Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> popListenerMapping) {
274 this.popListenerMapping = popListenerMapping;
278 public void close() {
280 synchronized (sessionLot) {
281 for (SessionContext sessionContext : sessionLot.values()) {
282 sessionContext.getPrimaryConductor().disconnect();
284 // TODO: handle timeouted shutdown
288 for (ListenerRegistration<SessionListener> listenerRegistration : sessionListeners) {
289 SessionListener listener = listenerRegistration.getInstance();
290 if (listener instanceof AutoCloseable) {
292 ((AutoCloseable) listener).close();
293 } catch (Exception e) {
294 LOG.warn("closing of sessionListenerRegistration failed", e);
301 public void setRpcPool(ListeningExecutorService rpcPool) {
302 this.rpcPool = rpcPool;
306 public ListeningExecutorService getRpcPool() {
311 public void setMessageSpy(MessageSpy<DataContainer> messageSpy) {
312 this.messageSpy = messageSpy;
316 public MessageSpy<DataContainer> getMessageSpy() {
321 public void setExtensionConverterProvider(
322 ExtensionConverterProvider extensionConverterProvider) {
323 this.extensionConverterProvider = extensionConverterProvider;
327 * @return the extensionConverterProvider
330 public ExtensionConverterProvider getExtensionConverterProvider() {
331 return extensionConverterProvider;
335 public Collection<SessionContext> getAllSessions() {
336 return sessionLot.values();