vpnservice/sfc/translator/src/main/java/org/opendaylight/netvirt/sfc/translator/OvsdbMdsalHelper.java

   1 /*
   2  * Copyright (c) 2017 Red Hat, 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
   9 package org.opendaylight.netvirt.sfc.translator;
  10
  11 import java.util.List;
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.Uuid;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbBridgeAugmentation;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeRef;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbTerminationPointAugmentation;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.port._interface.attributes.InterfaceExternalIds;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NetworkTopology;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TopologyId;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.TopologyKey;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  25 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeKey;
  26 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 /**
  32  * Utility methods to read OpenDaylight OVSDB models.
  33  */
  34 public class OvsdbMdsalHelper {
  35     private static final Logger LOG = LoggerFactory.getLogger(SfcMdsalHelper.class);
  36     private static final String OVSDB_TOPOLOGY_ID = "ovsdb:1";
  37     private static final InstanceIdentifier<Topology> TOPOLOGY_PATH
  38             = InstanceIdentifier.create(NetworkTopology.class)
  39             .child(Topology.class, new TopologyKey(new TopologyId(OVSDB_TOPOLOGY_ID)));
  40
  41     private final DataBroker dataBroker;
  42     private final MdsalUtils mdsalUtils;
  43
  44     public OvsdbMdsalHelper(DataBroker dataBroker) {
  45         this.dataBroker = dataBroker;
  46         mdsalUtils = new MdsalUtils(this.dataBroker);
  47     }
  48
  49     public Topology getOvsdbTopologyTree() {
  50         LOG.info("Reading OVSDB Topolog Tree (ovsdb:1)");
  51         return mdsalUtils.read(LogicalDatastoreType.OPERATIONAL, TOPOLOGY_PATH);
  52     }
  53
  54     public OvsdbPortMetadata getOvsdbPortMetadata(Uuid ingressPort) {
  55         LOG.info("Extract ovsdb port details for neutron port {}", ingressPort.getValue());
  56         Topology ovsdbTopology = mdsalUtils.read(LogicalDatastoreType.OPERATIONAL, TOPOLOGY_PATH);
  57         return getOvsdbPortMetadata(ingressPort, ovsdbTopology);
  58     }
  59
  60     public OvsdbPortMetadata getOvsdbPortMetadata(Uuid ingressPort, Topology ovsdbTopology) {
  61         LOG.debug("Extract ovsdb port details for neutron port {} from Topology {}",
  62                 ingressPort.getValue(), ovsdbTopology);
  63         OvsdbPortMetadata ovsdbPortMetadata = new OvsdbPortMetadata();
  64         OvsdbBridgeAugmentation bridgeAugmentation = null;
  65         if (ovsdbTopology != null) {
  66             List<Node> nodes = ovsdbTopology.getNode();
  67             for (Node node : nodes) {
  68                 if (node.getTerminationPoint() != null) {
  69                     for (TerminationPoint tp : node.getTerminationPoint()) {
  70                         OvsdbTerminationPointAugmentation tpAugmentation
  71                                 = tp.getAugmentation(OvsdbTerminationPointAugmentation.class);
  72                         List<InterfaceExternalIds> externalIds = tpAugmentation.getInterfaceExternalIds();
  73                         if (externalIds != null) {
  74                             for (InterfaceExternalIds externalId : externalIds) {
  75                                 if (externalId.getExternalIdValue().equals(ingressPort.getValue())) {
  76                                     LOG.info("OVSDB port found for neutron port {} : {}", ingressPort, tpAugmentation);
  77                                     ovsdbPortMetadata.setOvsdbPort(tpAugmentation);
  78                                     break;
  79                                 }
  80                             }
  81                             if (ovsdbPortMetadata.getOvsdbPort() != null) {
  82                                 break;
  83                             }
  84                         }
  85                     }
  86                 }
  87                 if (ovsdbPortMetadata.getOvsdbPort() != null) {
  88                     bridgeAugmentation = node.getAugmentation(OvsdbBridgeAugmentation.class);
  89                     if (bridgeAugmentation != null) {
  90                         ovsdbPortMetadata.setOvsdbBridgeNode(bridgeAugmentation);
  91                     } else {
  92                         LOG.warn("Brige augmentation is not present for the termination point {}",
  93                             ovsdbPortMetadata.getOvsdbPort());
  94                         return null;
  95                     }
  96                     break;
  97                 }
  98             }
  99             OvsdbNodeRef ovsdbNode = bridgeAugmentation.getManagedBy();
 100             if (ovsdbNode != null) {
 101                 NodeKey ovsdbNodeKey = ovsdbNode.getValue().firstKeyOf(Node.class);
 102                 for (Node node : nodes) {
 103                     if (node.getKey().equals(ovsdbNodeKey)) {
 104                         OvsdbNodeAugmentation nodeAugmentation = node.getAugmentation(OvsdbNodeAugmentation.class);
 105                         ovsdbPortMetadata.setOvsdbNode(nodeAugmentation);
 106                         break;
 107                     }
 108                 }
 109             } else {
 110                 LOG.warn("Ovsdb Node not found for ovsdb bridge {}",bridgeAugmentation);
 111             }
 112
 113         } else {
 114             LOG.warn("OVSDB Operational topology not avaialble.");
 115         }
 116         LOG.info("Neutron port's {} respective Ovsdb metadata {}", ingressPort, ovsdbPortMetadata);
 117         return ovsdbPortMetadata;
 118     }
 119
 120     public static String getOvsdbPortName(OvsdbTerminationPointAugmentation ovsdbPort) {
 121         return ovsdbPort.getName();
 122     }
 123
 124     public static String getNodeIpAddress(OvsdbNodeAugmentation ovsdbNode) {
 125         //Currently we support only ipv4
 126         return ovsdbNode.getConnectionInfo().getRemoteIp().getIpv4Address().getValue();
 127     }
 128
 129     public static String getNodeKey(InstanceIdentifier<?> node) {
 130         return node.firstKeyOf(Node.class).getNodeId().getValue();
 131     }
 132 }