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.openflow.md.core.ConnectionConductor;
21 import org.opendaylight.openflowplugin.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.openflow.md.core.extension.ExtensionConverterProvider;
25 import org.opendaylight.openflowplugin.openflow.md.queue.PopListener;
26 import org.opendaylight.openflowplugin.api.statistics.MessageSpy;
27 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.OfHeader;
28 import org.opendaylight.yangtools.concepts.ListenerRegistration;
29 import org.opendaylight.yangtools.concepts.util.ListenerRegistry;
30 import org.opendaylight.yangtools.yang.binding.DataContainer;
31 import org.opendaylight.yangtools.yang.binding.DataObject;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
38 public class SessionManagerOFImpl implements SessionManager {
40 protected static final Logger LOG = LoggerFactory.getLogger(SessionManagerOFImpl.class);
41 private static SessionManagerOFImpl instance;
42 private ConcurrentHashMap<SwitchSessionKeyOF, SessionContext> sessionLot;
43 private Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> translatorMapping;
44 private Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> popListenerMapping;
46 protected ListenerRegistry<SessionListener> sessionListeners;
47 private NotificationProviderService notificationProviderService;
49 private DataBroker dataBroker;
50 private ListeningExecutorService rpcPool;
54 * @return singleton instance
56 public static SessionManager getInstance() {
57 if (instance == null) {
58 synchronized (SessionContextOFImpl.class) {
59 if (instance == null) {
60 instance = new SessionManagerOFImpl();
68 * close and release singleton instace
70 public static void releaseInstance() {
71 if (instance != null) {
72 synchronized (SessionManagerOFImpl.class) {
73 if (instance != null) {
81 private SessionManagerOFImpl() {
82 LOG.debug("singleton creating");
83 sessionLot = new ConcurrentHashMap<>();
84 sessionListeners = new ListenerRegistry<>();
88 public SessionContext getSessionContext(SwitchSessionKeyOF sessionKey) {
89 return sessionLot.get(sessionKey);
93 public void invalidateSessionContext(SwitchSessionKeyOF sessionKey) {
94 SessionContext context = getSessionContext(sessionKey);
95 if (context == null) {
96 LOG.warn("context for invalidation not found");
98 for (Entry<SwitchConnectionDistinguisher, ConnectionConductor> auxEntry : context.getAuxiliaryConductors()) {
99 invalidateAuxiliary(sessionKey, auxEntry.getKey());
101 context.getPrimaryConductor().disconnect();
102 context.setValid(false);
103 removeSessionContext(context);
104 // TODO:: notify listeners
108 private void invalidateDeadSessionContext(SessionContext sessionContext) {
109 if (sessionContext == null) {
110 LOG.warn("context for invalidation not found");
112 for (Entry<SwitchConnectionDistinguisher, ConnectionConductor> auxEntry : sessionContext
113 .getAuxiliaryConductors()) {
114 invalidateAuxiliary(sessionContext, auxEntry.getKey(), true);
116 sessionContext.setValid(false);
117 removeSessionContext(sessionContext);
118 // TODO:: notify listeners
122 private void removeSessionContext(SessionContext sessionContext) {
123 if (LOG.isDebugEnabled()) {
124 LOG.debug("removing session: {}", Arrays.toString(sessionContext.getSessionKey().getId()));
126 sessionLot.remove(sessionContext.getSessionKey(), sessionContext);
127 sessionNotifier.onSessionRemoved(sessionContext);
131 public void addSessionContext(SwitchSessionKeyOF sessionKey, SessionContext context) {
132 sessionLot.put(sessionKey, context);
134 sessionNotifier.onSessionAdded(sessionKey, context);
139 public void invalidateAuxiliary(SwitchSessionKeyOF sessionKey,
140 SwitchConnectionDistinguisher connectionCookie) {
141 SessionContext context = getSessionContext(sessionKey);
142 invalidateAuxiliary(context, connectionCookie, true);
147 * @param connectionCookie
148 * @param disconnect true if auxiliary connection is to be disconnected
150 private static void invalidateAuxiliary(SessionContext context, SwitchConnectionDistinguisher connectionCookie,
151 boolean disconnect) {
152 if (context == null) {
153 LOG.warn("context for invalidation not found");
155 ConnectionConductor auxiliaryConductor = context.removeAuxiliaryConductor(connectionCookie);
156 if (auxiliaryConductor == null) {
157 LOG.warn("auxiliary conductor not found");
160 auxiliaryConductor.disconnect();
167 public void invalidateOnDisconnect(ConnectionConductor conductor) {
168 if (conductor.getAuxiliaryKey() == null) {
169 invalidateDeadSessionContext(conductor.getSessionContext());
170 // TODO:: notify listeners
172 invalidateAuxiliary(conductor.getSessionContext(), conductor.getAuxiliaryKey(), false);
177 public void setTranslatorMapping(Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> translatorMapping) {
178 this.translatorMapping = translatorMapping;
182 public ListenerRegistration<SessionListener> registerSessionListener(SessionListener listener) {
183 LOG.debug("registerSessionListener");
184 return sessionListeners.register(listener);
187 private final SessionListener sessionNotifier = new SessionListener() {
190 public void onSessionAdded(SwitchSessionKeyOF sessionKey, SessionContext context) {
191 for (ListenerRegistration<SessionListener> listener : sessionListeners) {
193 listener.getInstance().onSessionAdded(sessionKey, context);
194 } catch (Exception e) {
195 LOG.error("Unhandled exeption occured while invoking onSessionAdded on listener", e);
201 public void onSessionRemoved(SessionContext context) {
202 for (ListenerRegistration<SessionListener> listener : sessionListeners) {
204 listener.getInstance().onSessionRemoved(context);
205 } catch (Exception e) {
206 LOG.error("Unhandled exeption occured while invoking onSessionRemoved on listener", e);
211 private MessageSpy<DataContainer> messageSpy;
212 private ExtensionConverterProvider extensionConverterProvider;
216 public Map<TranslatorKey, Collection<IMDMessageTranslator<OfHeader, List<DataObject>>>> getTranslatorMapping() {
217 return this.translatorMapping;
221 public void setNotificationProviderService(
222 NotificationProviderService notificationProviderService) {
223 this.notificationProviderService = notificationProviderService;
228 public DataBroker getDataBroker() {
233 public void setDataBroker(DataBroker dataBroker) {
234 this.dataBroker = dataBroker;
239 public NotificationProviderService getNotificationProviderService() {
240 return notificationProviderService;
244 public Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> getPopListenerMapping() {
245 return popListenerMapping;
249 public void setPopListenerMapping(
250 Map<Class<? extends DataObject>, Collection<PopListener<DataObject>>> popListenerMapping) {
251 this.popListenerMapping = popListenerMapping;
255 public void close() {
257 sessionListeners = null;
258 synchronized (sessionLot) {
259 for (SessionContext sessionContext : sessionLot.values()) {
260 sessionContext.getPrimaryConductor().disconnect();
262 // TODO: handle timeouted shutdown
268 public void setRpcPool(ListeningExecutorService rpcPool) {
269 this.rpcPool = rpcPool;
273 public ListeningExecutorService getRpcPool() {
278 public void setMessageSpy(MessageSpy<DataContainer> messageSpy) {
279 this.messageSpy = messageSpy;
283 public MessageSpy<DataContainer> getMessageSpy() {
288 public void setExtensionConverterProvider(
289 ExtensionConverterProvider extensionConverterProvider) {
290 this.extensionConverterProvider = extensionConverterProvider;
294 * @return the extensionConverterProvider
297 public ExtensionConverterProvider getExtensionConverterProvider() {
298 return extensionConverterProvider;