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.md.sal.binding.api.DataBroker;
  11 import org.opendaylight.controller.md.sal.binding.api.DataTreeChangeListener;
  12 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.controller.sal.binding.api.NotificationService;
  15 import org.opendaylight.openflowplugin.learningswitch.DataTreeChangeListenerRegistrationHolder;
  16 import org.opendaylight.openflowplugin.learningswitch.FlowCommitWrapper;
  17 import org.opendaylight.openflowplugin.learningswitch.FlowCommitWrapperImpl;
  18 import org.opendaylight.openflowplugin.learningswitch.LearningSwitchManager;
  19 import org.opendaylight.openflowplugin.learningswitch.WakeupOnNode;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.tables.Table;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  24 import org.opendaylight.yang.gen.v1.urn.opendaylight.packet.service.rev130709.PacketProcessingService;
  25 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  26 import org.opendaylight.yangtools.concepts.Registration;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * Listens to packetIn notification.
  33  * <ul>
  34  * <li>in HUB mode simply floods all switch ports (except ingress port)</li>
  35  * <li>in LSWITCH mode collects source MAC address of packetIn and bind it with ingress port.
  36  * If target MAC address is already bound then a flow is created (for direct communication between
  37  * corresponding MACs)</li>
  38  * </ul>
  39  */
  40 public class LearningSwitchManagerMultiImpl implements DataTreeChangeListenerRegistrationHolder, LearningSwitchManager {
  41
  42     private static final Logger LOG = LoggerFactory.getLogger(LearningSwitchManagerMultiImpl.class);
  43     private NotificationService notificationService;
  44     private PacketProcessingService packetProcessingService;
  45     private DataBroker data;
  46     private Registration packetInRegistration;
  47     private ListenerRegistration<DataTreeChangeListener> dataTreeChangeListenerRegistration;
  48
  49     /**
  50      * Sets the NotificationService.
  51      *
  52      * @param notificationService the notificationService to set
  53      */
  54     @Override
  55     public void setNotificationService(NotificationService notificationService) {
  56         this.notificationService = notificationService;
  57     }
  58
  59     /**
  60      * Sets the PacketProcessingService.
  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      * Sets the DataBroker.
  72      *
  73      * @param broker the data to set
  74      */
  75     @Override
  76     public void setDataBroker(DataBroker broker) {
  77         this.data = broker;
  78     }
  79
  80     /**
  81      * Starts learning switch.
  82      */
  83     @Override
  84     public void start() {
  85         LOG.debug("start() -->");
  86         FlowCommitWrapper dataStoreAccessor = new FlowCommitWrapperImpl(data);
  87
  88         PacketInDispatcherImpl packetInDispatcher = new PacketInDispatcherImpl();
  89         MultipleLearningSwitchHandlerFacadeImpl learningSwitchHandler = new MultipleLearningSwitchHandlerFacadeImpl(
  90                 dataStoreAccessor, packetProcessingService, packetInDispatcher);
  91         packetInRegistration = notificationService.registerNotificationListener(packetInDispatcher);
  92
  93         WakeupOnNode wakeupListener = new WakeupOnNode();
  94         wakeupListener.setLearningSwitchHandler(learningSwitchHandler);
  95         final InstanceIdentifier<Table> instanceIdentifier = InstanceIdentifier.create(Nodes.class)
  96                 .child(Node.class)
  97                 .augmentation(FlowCapableNode.class)
  98                 .child(Table.class);
  99         final DataTreeIdentifier<Table> dataTreeIdentifier =
 100                 new DataTreeIdentifier(LogicalDatastoreType.OPERATIONAL, instanceIdentifier);
 101         dataTreeChangeListenerRegistration = data.registerDataTreeChangeListener(dataTreeIdentifier, wakeupListener);
 102         LOG.debug("start() <--");
 103     }
 104
 105     /**
 106      * Stops learning switch.
 107      */
 108     @Override
 109     public void stop() {
 110         LOG.debug("stop() -->");
 111         //TODO: remove flow (created in #start())
 112
 113         packetInRegistration.close();
 114
 115         dataTreeChangeListenerRegistration.close();
 116         LOG.debug("stop() <--");
 117     }
 118
 119
 120     @Override
 121     public ListenerRegistration<DataTreeChangeListener> getDataTreeChangeListenerRegistration() {
 122         return dataTreeChangeListenerRegistration;
 123     }
 124 }