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 com.google.common.base.Optional;
  11 import java.util.Collections;
  12 import java.util.List;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  15 import org.opendaylight.openflowplugin.common.txchain.TransactionChainManager;
  16 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.NodeId;
  17 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.TpId;
  18 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.Topology;
  19 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Link;
  20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23
  24 class TopologyManagerUtil {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(TopologyManagerUtil.class);
  27
  28     private TopologyManagerUtil() {}
  29
  30     static void removeAffectedLinks(final NodeId id, final TransactionChainManager manager, InstanceIdentifier<Topology> topology) {
  31         Optional<Topology> topologyOptional = Optional.absent();
  32         try {
  33             topologyOptional = manager.readFromTransaction(LogicalDatastoreType.OPERATIONAL, topology).checkedGet();
  34         } catch (ReadFailedException e) {
  35             LOG.warn("Error reading topology data for topology {}: {}", topology, e.getMessage());
  36             LOG.debug("Error reading topology data for topology.. ", e);
  37         }
  38         if (topologyOptional.isPresent()) {
  39             removeAffectedLinks(id, topologyOptional, manager, topology);
  40         }
  41     }
  42
  43     private static void removeAffectedLinks(final NodeId id, Optional<Topology> topologyOptional, TransactionChainManager manager, final InstanceIdentifier<Topology> topology) {
  44         if (!topologyOptional.isPresent()) {
  45             return;
  46         }
  47
  48         List<Link> linkList = topologyOptional.get().getLink() != null ?
  49                 topologyOptional.get().getLink() : Collections.emptyList();
  50         for (Link link : linkList) {
  51             if (id.equals(link.getSource().getSourceNode()) ||
  52                     id.equals(link.getDestination().getDestNode())) {
  53                 manager.addDeleteOperationTotTxChain(LogicalDatastoreType.OPERATIONAL, linkPath(link, topology));
  54             }
  55         }
  56     }
  57
  58     static void removeAffectedLinks(final TpId id, final TransactionChainManager manager, final InstanceIdentifier<Topology> topology) {
  59         Optional<Topology> topologyOptional = Optional.absent();
  60         try {
  61             topologyOptional = manager.readFromTransaction(LogicalDatastoreType.OPERATIONAL, topology).checkedGet();
  62         } catch (ReadFailedException e) {
  63             LOG.warn("Error reading topology data for topology {}: {}", topology, e.getMessage());
  64             LOG.debug("Error reading topology data for topology..", e);
  65         }
  66         if (topologyOptional.isPresent()) {
  67             removeAffectedLinks(id, topologyOptional, manager, topology);
  68         }
  69     }
  70
  71     private static void removeAffectedLinks(final TpId id, Optional<Topology> topologyOptional, TransactionChainManager manager, final InstanceIdentifier<Topology> topology) {
  72         if (!topologyOptional.isPresent()) {
  73             return;
  74         }
  75
  76         List<Link> linkList = topologyOptional.get().getLink() != null
  77                 ? topologyOptional.get().getLink() : Collections.<Link> emptyList();
  78         for (Link link : linkList) {
  79             if (id.equals(link.getSource().getSourceTp()) ||
  80                     id.equals(link.getDestination().getDestTp())) {
  81                 manager.addDeleteOperationTotTxChain(LogicalDatastoreType.OPERATIONAL, linkPath(link, topology));
  82             }
  83         }
  84     }
  85
  86     static InstanceIdentifier<Link> linkPath(final Link link, final InstanceIdentifier<Topology> topology) {
  87         return topology.child(Link.class, link.getKey());
  88     }
  89
  90
  91 }