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

   1 /**
   2  * Copyright (c) 2015 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 org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
  11
  12 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15 import com.google.common.base.Optional;
  16 import java.util.Collections;
  17 import java.util.List;
  18 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  19 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  20 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  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.topology.Link;
  24
  25 public class TopologyManagerUtil {
  26
  27     private static final Logger LOG = LoggerFactory.getLogger(TopologyManagerUtil.class);
  28
  29     static void removeAffectedLinks(final NodeId id, final ReadWriteTransaction transaction, InstanceIdentifier<Topology> topology) {
  30         Optional<Topology> topologyOptional = Optional.absent();
  31         try {
  32             topologyOptional = transaction.read(LogicalDatastoreType.OPERATIONAL, topology).checkedGet();
  33         } catch (ReadFailedException e) {
  34             LOG.error("Error reading topology data for topology {}", topology, e);
  35         }
  36         if (topologyOptional.isPresent()) {
  37             removeAffectedLinks(id, topologyOptional, transaction, topology);
  38         }
  39     }
  40
  41     static void removeAffectedLinks(final NodeId id, Optional<Topology> topologyOptional, ReadWriteTransaction transaction, final InstanceIdentifier<Topology> topology) {
  42         if (!topologyOptional.isPresent()) {
  43             return;
  44         }
  45
  46         List<Link> linkList = topologyOptional.get().getLink() != null ?
  47                 topologyOptional.get().getLink() : Collections.<Link> emptyList();
  48         for (Link link : linkList) {
  49             if (id.equals(link.getSource().getSourceNode()) ||
  50                     id.equals(link.getDestination().getDestNode())) {
  51                 transaction.delete(LogicalDatastoreType.OPERATIONAL, linkPath(link, topology));
  52             }
  53         }
  54     }
  55
  56     static void removeAffectedLinks(final TpId id, final ReadWriteTransaction transaction, final InstanceIdentifier<Topology> topology) {
  57         Optional<Topology> topologyOptional = Optional.absent();
  58         try {
  59             topologyOptional = transaction.read(LogicalDatastoreType.OPERATIONAL, topology).checkedGet();
  60         } catch (ReadFailedException e) {
  61             LOG.error("Error reading topology data for topology {}", topology, e);
  62         }
  63         if (topologyOptional.isPresent()) {
  64             removeAffectedLinks(id, topologyOptional, transaction, topology);
  65         }
  66     }
  67
  68     static void removeAffectedLinks(final TpId id, Optional<Topology> topologyOptional, ReadWriteTransaction transaction, final InstanceIdentifier<Topology> topology) {
  69         if (!topologyOptional.isPresent()) {
  70             return;
  71         }
  72
  73         List<Link> linkList = topologyOptional.get().getLink() != null
  74                 ? topologyOptional.get().getLink() : Collections.<Link> emptyList();
  75         for (Link link : linkList) {
  76             if (id.equals(link.getSource().getSourceTp()) ||
  77                     id.equals(link.getDestination().getDestTp())) {
  78                 transaction.delete(LogicalDatastoreType.OPERATIONAL, linkPath(link, topology));
  79             }
  80         }
  81     }
  82
  83     static InstanceIdentifier<Link> linkPath(final Link link, final InstanceIdentifier<Topology> topology) {
  84         return topology.child(Link.class, link.getKey());
  85     }
  86
  87
  88 }