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