samples/learning-switch/src/main/java/org/opendaylight/openflowplugin/learningswitch/multi/LearningSwitchManagerMultiImpl.java

   1 /**
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.openflowplugin.learningswitch.multi;
   9
  10 import org.opendaylight.controller.sal.binding.api.NotificationService;
  11 import org.opendaylight.controller.sal.binding.api.data.DataBrokerService;
  12 import org.opendaylight.controller.sal.binding.api.data.DataChangeListener;
  13 import org.opendaylight.openflowplugin.learningswitch.DataChangeListenerRegistrationHolder;
  14 import org.opendaylight.openflowplugin.learningswitch.LearningSwitchManager;
  15 import org.opendaylight.openflowplugin.learningswitch.FlowCommitWrapper;
  16 import org.opendaylight.openflowplugin.learningswitch.FlowCommitWrapperImpl;
  17 import org.opendaylight.openflowplugin.learningswitch.WakeupOnNode;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingService;
  23 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  24 import org.opendaylight.yangtools.concepts.Registration;
  25 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  26 import org.opendaylight.yangtools.yang.binding.NotificationListener;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 /**
  31  * Listens to packetIn notification and
  32  * <ul>
  33  * <li>in HUB mode simply floods all switch ports (except ingress port)</li>
  34  * <li>in LSWITCH mode collects source MAC address of packetIn and bind it with ingress port.
  35  * If target MAC address is already bound then a flow is created (for direct communication between
  36  * corresponding MACs)</li>
  37  * </ul>
  38  */
  39 public class LearningSwitchManagerMultiImpl implements DataChangeListenerRegistrationHolder,
  40         LearningSwitchManager {
  41
  42     protected static final Logger LOG = LoggerFactory
  43             .getLogger(LearningSwitchManagerMultiImpl.class);
  44
  45     private NotificationService notificationService;
  46     private PacketProcessingService packetProcessingService;
  47     private DataBrokerService data;
  48
  49     private Registration packetInRegistration;
  50
  51     private ListenerRegistration<DataChangeListener> dataChangeListenerRegistration;
  52
  53     /**
  54      * @param notificationService the notificationService to set
  55      */
  56     @Override
  57     public void setNotificationService(NotificationService notificationService) {
  58         this.notificationService = notificationService;
  59     }
  60
  61     /**
  62      * @param packetProcessingService the packetProcessingService to set
  63      */
  64     @Override
  65     public void setPacketProcessingService(
  66             PacketProcessingService packetProcessingService) {
  67         this.packetProcessingService = packetProcessingService;
  68     }
  69
  70     /**
  71      * @param data the data to set
  72      */
  73     @Override
  74     public void setDataBroker(DataBrokerService data) {
  75         this.data = data;
  76     }
  77
  78     /**
  79      * starting learning switch
  80      */
  81     @Override
  82     public void start() {
  83         LOG.debug("start() -->");
  84         FlowCommitWrapper dataStoreAccessor = new FlowCommitWrapperImpl(data);
  85
  86         PacketInDispatcherImpl packetInDispatcher = new PacketInDispatcherImpl();
  87         MultipleLearningSwitchHandlerFacadeImpl learningSwitchHandler = new MultipleLearningSwitchHandlerFacadeImpl();
  88         learningSwitchHandler.setRegistrationPublisher(this);
  89         learningSwitchHandler.setDataStoreAccessor(dataStoreAccessor);
  90         learningSwitchHandler.setPacketProcessingService(packetProcessingService);
  91         learningSwitchHandler.setPacketInDispatcher(packetInDispatcher);
  92         packetInRegistration = notificationService.registerNotificationListener(packetInDispatcher);
  93
  94         WakeupOnNode wakeupListener = new WakeupOnNode();
  95         wakeupListener.setLearningSwitchHandler(learningSwitchHandler);
  96         dataChangeListenerRegistration = data.registerDataChangeListener(
  97                 InstanceIdentifier.builder(Nodes.class)
  98                     .child(Node.class)
  99                     .augmentation(FlowCapableNode.class)
 100                     .child(Table.class).toInstance(),
 101                 wakeupListener);
 102         LOG.debug("start() <--");
 103     }
 104
 105     /**
 106      * stopping learning switch
 107      */
 108     @Override
 109     public void stop() {
 110         LOG.debug("stop() -->");
 111         //TODO: remove flow (created in #start())
 112         try {
 113             packetInRegistration.close();
 114         } catch (Exception e) {
 115             LOG.error(e.getMessage(), e);
 116         }
 117         try {
 118             dataChangeListenerRegistration.close();
 119         } catch (Exception e) {
 120             LOG.error(e.getMessage(), e);
 121         }
 122         LOG.debug("stop() <--");
 123     }
 124
 125
 126     @Override
 127     public ListenerRegistration<DataChangeListener> getDataChangeListenerRegistration() {
 128         return dataChangeListenerRegistration;
 129     }
 130 }