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.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
  25 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRemoved;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRemovedBuilder;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeUpdated;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeUpdatedBuilder;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.Nodes;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.Node;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.GetFeaturesOutput;
  34 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier.InstanceIdentifierBuilder;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 /**
  40  * session and inventory listener implementation
  41  */
  42 public class SalRegistrationManager implements SessionListener, SwitchInventory {
  43
  44     private final static Logger LOG = LoggerFactory.getLogger(SalRegistrationManager.class);
  45
  46     Map<InstanceIdentifier<Node>, ModelDrivenSwitch> salSwitches = new ConcurrentHashMap<>();
  47
  48     private ProviderContext providerContext;
  49
  50     private NotificationProviderService publishService;
  51
  52     private DataProviderService dataService;
  53
  54     public NotificationProviderService getPublishService() {
  55         return publishService;
  56     }
  57
  58     public void setPublishService(NotificationProviderService publishService) {
  59         this.publishService = publishService;
  60     }
  61
  62     public ProviderContext getProviderContext() {
  63         return providerContext;
  64     }
  65
  66     public void onSessionInitiated(ProviderContext session) {
  67         this.providerContext = session;
  68         this.publishService = session.getSALService(NotificationProviderService.class);
  69         this.dataService = session.getSALService(DataProviderService.class);
  70         // We register as listener for Session Manager
  71         getSessionManager().registerSessionListener(this);
  72         getSessionManager().setNotificationProviderService(publishService);
  73         getSessionManager().setDataProviderService(dataService);
  74         LOG.info("SalRegistrationManager initialized");
  75
  76     }
  77
  78     @Override
  79     public void onSessionAdded(SwitchConnectionDistinguisher sessionKey, SessionContext context) {
  80         GetFeaturesOutput features = context.getFeatures();
  81         BigInteger datapathId = features.getDatapathId();
  82         InstanceIdentifier<Node> identifier = identifierFromDatapathId(datapathId);
  83         NodeRef nodeRef = new NodeRef(identifier);
  84         NodeId nodeId = nodeIdFromDatapathId(datapathId);
  85         ModelDrivenSwitchImpl ofSwitch = new ModelDrivenSwitchImpl(nodeId, identifier, context);
  86         salSwitches.put(identifier, ofSwitch);
  87         ofSwitch.register(providerContext);
  88
  89         LOG.info("ModelDrivenSwitch for {} registered to MD-SAL.", datapathId.toString());
  90
  91         publishService.publish(nodeAdded(ofSwitch, features,nodeRef));
  92     }
  93
  94     @Override
  95     public void onSessionRemoved(SessionContext context) {
  96         GetFeaturesOutput features = context.getFeatures();
  97         BigInteger datapathId = features.getDatapathId();
  98         InstanceIdentifier<Node> identifier = identifierFromDatapathId(datapathId);
  99         NodeRef nodeRef = new NodeRef(identifier);
 100         NodeRemoved nodeRemoved = nodeRemoved(nodeRef);
 101
 102         LOG.info("ModelDrivenSwitch for {} unregistred from MD-SAL.", datapathId.toString());
 103         publishService.publish(nodeRemoved);
 104     }
 105
 106     private NodeUpdated nodeAdded(ModelDrivenSwitch sw, GetFeaturesOutput features, NodeRef nodeRef) {
 107         NodeUpdatedBuilder builder = new NodeUpdatedBuilder();
 108         builder.setId(sw.getNodeId());
 109         builder.setNodeRef(nodeRef);
 110         return builder.build();
 111     }
 112
 113     private NodeRemoved nodeRemoved(NodeRef nodeRef) {
 114         NodeRemovedBuilder builder = new NodeRemovedBuilder();
 115         builder.setNodeRef(nodeRef);
 116         return builder.build();
 117     }
 118
 119     @Override
 120     public ModelDrivenSwitch getSwitch(NodeRef node) {
 121         return salSwitches.get(node.getValue());
 122     }
 123
 124     public static InstanceIdentifier<Node> identifierFromDatapathId(BigInteger datapathId) {
 125         NodeKey nodeKey = nodeKeyFromDatapathId(datapathId);
 126         InstanceIdentifierBuilder<Node> builder = InstanceIdentifier.builder(Nodes.class).child(Node.class,nodeKey);
 127         return builder.toInstance();
 128     }
 129
 130     public static NodeKey nodeKeyFromDatapathId(BigInteger datapathId) {
 131         return new NodeKey(nodeIdFromDatapathId(datapathId));
 132     }
 133
 134     public static NodeId nodeIdFromDatapathId(BigInteger datapathId) {
 135         // FIXME: Convert to textual representation of datapathID
 136         String current = datapathId.toString();
 137         return new NodeId("openflow:" + current);
 138     }
 139
 140     public SessionManager getSessionManager() {
 141         return OFSessionUtil.getSessionManager();
 142     }
 143 }