applications/topology-manager/src/main/java/org/opendaylight/openflowplugin/applications/topology/manager/FlowCapableTopologyExporter.java

   1 /*
   2  * Copyright (c) 2014 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.applications.topology.manager;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.base.Preconditions;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  14 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  15 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.FlowTopologyDiscoveryListener;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkDiscovered;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkOverutilized;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkRemoved;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.topology.discovery.rev130819.LinkUtilizationNormal;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeConnectorRef;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeRef;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.node.NodeConnectorKey;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
  26 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  27 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  30 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  31 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPointKey;
  32 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  33 import org.slf4j.Logger;
  34 import org.slf4j.LoggerFactory;
  35
  36 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.getNodeConnectorKey;
  37 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.getNodeKey;
  38 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTerminationPointId;
  39 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTopologyLink;
  40 import static org.opendaylight.openflowplugin.applications.topology.manager.FlowCapableNodeMapping.toTopologyNodeId;
  41
  42 class FlowCapableTopologyExporter implements FlowTopologyDiscoveryListener {
  43
  44     private static final Logger LOG = LoggerFactory.getLogger(FlowCapableTopologyExporter.class);
  45     protected final InstanceIdentifier<Topology> iiToTopology;
  46     private final OperationProcessor processor;
  47
  48     FlowCapableTopologyExporter(final OperationProcessor processor,
  49             final InstanceIdentifier<Topology> topology) {
  50         this.processor = Preconditions.checkNotNull(processor);
  51         this.iiToTopology = Preconditions.checkNotNull(topology);
  52     }
  53
  54     @Override
  55     public void onLinkDiscovered(final LinkDiscovered notification) {
  56         processor.enqueueOperation(new TopologyOperation() {
  57             @Override
  58             public void applyOperation(final ReadWriteTransaction transaction) {
  59                 final Link link = toTopologyLink(notification);
  60                 final InstanceIdentifier<Link> path = TopologyManagerUtil.linkPath(link, iiToTopology);
  61                 transaction.merge(LogicalDatastoreType.OPERATIONAL, path, link, true);
  62             }
  63
  64             @Override
  65             public String toString() {
  66                 return "onLinkDiscovered";
  67             }
  68         });
  69     }
  70
  71     @Override
  72     public void onLinkOverutilized(final LinkOverutilized notification) {
  73         // NOOP
  74     }
  75
  76     @Override
  77     public void onLinkRemoved(final LinkRemoved notification) {
  78         processor.enqueueOperation(new TopologyOperation() {
  79             @Override
  80             public void applyOperation(final ReadWriteTransaction transaction) {
  81                 Optional<Link> linkOptional = Optional.absent();
  82                 try {
  83                     // read that checks if link exists (if we do not do this we might get an exception on delete)
  84                     linkOptional = transaction.read(LogicalDatastoreType.OPERATIONAL,
  85                             TopologyManagerUtil.linkPath(toTopologyLink(notification), iiToTopology)).checkedGet();
  86                 } catch (ReadFailedException e) {
  87                     LOG.error("Error occured when trying to read Link ", e);
  88                 }
  89                 if (linkOptional.isPresent()) {
  90                     transaction.delete(LogicalDatastoreType.OPERATIONAL, TopologyManagerUtil.linkPath(toTopologyLink(notification), iiToTopology));
  91                 }
  92             }
  93
  94             @Override
  95             public String toString() {
  96                 return "onLinkRemoved";
  97             }
  98         });
  99     }
 100
 101     @Override
 102     public void onLinkUtilizationNormal(final LinkUtilizationNormal notification) {
 103         // NOOP
 104     }
 105
 106     private InstanceIdentifier<Node> toNodeIdentifier(final NodeRef ref) {
 107         org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey invNodeKey = getNodeKey(ref);
 108         NodeKey nodeKey = new NodeKey(toTopologyNodeId(invNodeKey.getId()));
 109         return iiToTopology.child(Node.class, nodeKey);
 110     }
 111
 112     private InstanceIdentifier<TerminationPoint> toTerminationPointIdentifier(final NodeConnectorRef ref) {
 113         org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.nodes.NodeKey invNodeKey = getNodeKey(ref);
 114         NodeConnectorKey invNodeConnectorKey = getNodeConnectorKey(ref);
 115         return tpPath(toTopologyNodeId(invNodeKey.getId()), toTerminationPointId(invNodeConnectorKey.getId()));
 116     }
 117
 118
 119
 120     private InstanceIdentifier<Node> getNodePath(final NodeId nodeId) {
 121         return iiToTopology.child(Node.class, new NodeKey(nodeId));
 122     }
 123
 124     private InstanceIdentifier<TerminationPoint> tpPath(final NodeId nodeId, final TpId tpId) {
 125         NodeKey nodeKey = new NodeKey(nodeId);
 126         TerminationPointKey tpKey = new TerminationPointKey(tpId);
 127         return iiToTopology.child(Node.class, nodeKey).child(TerminationPoint.class, tpKey);
 128     }
 129
 130 }