openflowplugin/src/main/java/org/opendaylight/openflowplugin/openflow/md/core/sal/SalRegistrationManager.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.openflow.md.core.sal;
   9
  10 import java.math.BigInteger;
  11 import java.util.Map;
  12 import java.util.concurrent.ConcurrentHashMap;
  13
  14 import org.opendaylight.controller.sal.binding.api.BindingAwareBroker.ProviderContext;
  15 import org.opendaylight.controller.sal.binding.api.NotificationProviderService;
  16 import org.opendaylight.controller.sal.binding.api.data.DataProviderService;
  17 import org.opendaylight.openflowplugin.openflow.md.ModelDrivenSwitch;
  18 import org.opendaylight.openflowplugin.openflow.md.SwitchInventory;
  19 import org.opendaylight.openflowplugin.openflow.md.core.SwitchConnectionDistinguisher;
  20 import org.opendaylight.openflowplugin.openflow.md.core.session.OFSessionUtil;
  21 import org.opendaylight.openflowplugin.openflow.md.core.session.SessionContext;
  22 import org.opendaylight.openflowplugin.openflow.md.core.session.SessionListener;
  23 import org.opendaylight.openflowplugin.openflow.md.core.session.SessionManager;
  24 import org.opendaylight.openflowplugin.openflow.md.lldp.LLDPSpeaker;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeUpdated;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeUpdatedBuilder;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRemoved;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRemovedBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeUpdated;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeUpdatedBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput;
  37 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  38 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;
  39 import org.slf4j.Logger;
  40 import org.slf4j.LoggerFactory;
  41
  42 /**
  43  * session and inventory listener implementation
  44  */
  45 public class SalRegistrationManager implements SessionListener, AutoCloseable {
  46
  47     private final static Logger LOG = LoggerFactory.getLogger(SalRegistrationManager.class);
  48
  49     private ProviderContext providerContext;
  50
  51     private NotificationProviderService publishService;
  52
  53     private DataProviderService dataService;
  54
  55     private SwitchFeaturesUtil swFeaturesUtil;
  56
  57     public SalRegistrationManager() {
  58         swFeaturesUtil = SwitchFeaturesUtil.getInstance();
  59     }
  60
  61     public NotificationProviderService getPublishService() {
  62         return publishService;
  63     }
  64
  65     public void setPublishService(NotificationProviderService publishService) {
  66         this.publishService = publishService;
  67     }
  68
  69     public ProviderContext getProviderContext() {
  70         return providerContext;
  71     }
  72
  73     public void onSessionInitiated(ProviderContext session) {
  74         LOG.debug("onSessionInitiated");
  75         this.providerContext = session;
  76         this.publishService = session.getSALService(NotificationProviderService.class);
  77         this.dataService = session.getSALService(DataProviderService.class);
  78         // We register as listener for Session Manager
  79         getSessionManager().registerSessionListener(this);
  80         getSessionManager().setNotificationProviderService(publishService);
  81         getSessionManager().setDataProviderService(dataService);
  82         LOG.debug("SalRegistrationManager initialized");
  83     }
  84
  85     @Override
  86     public void onSessionAdded(SwitchConnectionDistinguisher sessionKey, SessionContext context) {
  87         GetFeaturesOutput features = context.getFeatures();
  88         BigInteger datapathId = features.getDatapathId();
  89         InstanceIdentifier<Node> identifier = identifierFromDatapathId(datapathId);
  90         NodeRef nodeRef = new NodeRef(identifier);
  91         NodeId nodeId = nodeIdFromDatapathId(datapathId);
  92         ModelDrivenSwitchImpl ofSwitch = new ModelDrivenSwitchImpl(nodeId, identifier, context);
  93         LLDPSpeaker.getInstance().addModelDrivenSwitch(identifier, ofSwitch);
  94         ofSwitch.register(providerContext);
  95
  96         LOG.debug("ModelDrivenSwitch for {} registered to MD-SAL.", datapathId.toString());
  97
  98         publishService.publish(nodeAdded(ofSwitch, features,nodeRef));
  99     }
 100
 101     @Override
 102     public void onSessionRemoved(SessionContext context) {
 103         GetFeaturesOutput features = context.getFeatures();
 104         BigInteger datapathId = features.getDatapathId();
 105         InstanceIdentifier<Node> identifier = identifierFromDatapathId(datapathId);
 106         NodeRef nodeRef = new NodeRef(identifier);
 107         NodeRemoved nodeRemoved = nodeRemoved(nodeRef);
 108         LLDPSpeaker.getInstance().removeModelDrivenSwitch(identifier);
 109         LOG.debug("ModelDrivenSwitch for {} unregistred from MD-SAL.", datapathId.toString());
 110         publishService.publish(nodeRemoved);
 111     }
 112
 113     private NodeUpdated nodeAdded(ModelDrivenSwitch sw, GetFeaturesOutput features, NodeRef nodeRef) {
 114         NodeUpdatedBuilder builder = new NodeUpdatedBuilder();
 115         builder.setId(sw.getNodeId());
 116         builder.setNodeRef(nodeRef);
 117
 118         FlowCapableNodeUpdatedBuilder builder2 = new FlowCapableNodeUpdatedBuilder();
 119         builder2.setSwitchFeatures(swFeaturesUtil.buildSwitchFeatures(features));
 120         builder.addAugmentation(FlowCapableNodeUpdated.class, builder2.build());
 121
 122         return builder.build();
 123     }
 124
 125     private NodeRemoved nodeRemoved(NodeRef nodeRef) {
 126         NodeRemovedBuilder builder = new NodeRemovedBuilder();
 127         builder.setNodeRef(nodeRef);
 128         return builder.build();
 129     }
 130
 131     public static InstanceIdentifier<Node> identifierFromDatapathId(BigInteger datapathId) {
 132         NodeKey nodeKey = nodeKeyFromDatapathId(datapathId);
 133         InstanceIdentifierBuilder<Node> builder = InstanceIdentifier.builder(Nodes.class).child(Node.class,nodeKey);
 134         return builder.toInstance();
 135     }
 136
 137     public static NodeKey nodeKeyFromDatapathId(BigInteger datapathId) {
 138         return new NodeKey(nodeIdFromDatapathId(datapathId));
 139     }
 140
 141     public static NodeId nodeIdFromDatapathId(BigInteger datapathId) {
 142         // FIXME: Convert to textual representation of datapathID
 143         String current = datapathId.toString();
 144         return new NodeId("openflow:" + current);
 145     }
 146
 147     public SessionManager getSessionManager() {
 148         return OFSessionUtil.getSessionManager();
 149     }
 150
 151     @Override
 152     public void close() {
 153         LOG.debug("close");
 154         dataService = null;
 155         providerContext = null;
 156         publishService = null;
 157     }
 158 }