hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/reconciliation/configuration/GlobalConfigOperationalChangeGetter.java

   1 /*
   2  * Copyright © 2016, 2017 Ericsson India Global Services Pvt Ltd. 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.ovsdb.hwvtepsouthbound.reconciliation.configuration;
   9
  10 import com.google.common.collect.Sets;
  11 import java.util.ArrayList;
  12 import java.util.HashSet;
  13 import java.util.List;
  14 import java.util.Set;
  15 import java.util.stream.Collectors;
  16 import org.opendaylight.mdsal.binding.api.DataTreeModification;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentationBuilder;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalMcastMacs;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalUcastMacs;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LogicalSwitches;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  23 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25
  26 public final class GlobalConfigOperationalChangeGetter {
  27
  28     private GlobalConfigOperationalChangeGetter() {
  29     }
  30
  31     public static DataTreeModification<Node> getModification(InstanceIdentifier<Node> nodeId, Node configNode,
  32                                                              Node opNode) {
  33
  34         NodeBuilder newNodeBuilder = getNodeBuilderFromNode(configNode);
  35         NodeBuilder oldNodeBuilder = getNodeBuilderFromNode(opNode);
  36
  37         HwvtepGlobalAugmentationBuilder newAugmentation = augmentationFromNode(configNode);
  38         HwvtepGlobalAugmentationBuilder oldAugmentation = augmentationFromNode(opNode);
  39
  40         //fire removal of local ucast macs so that logical switches will be deleted
  41         fillLocalMacsToBeRemoved(oldAugmentation, configNode, opNode);
  42
  43         newNodeBuilder.addAugmentation(HwvtepGlobalAugmentation.class, newAugmentation.build());
  44         oldNodeBuilder.addAugmentation(HwvtepGlobalAugmentation.class, oldAugmentation.build());
  45
  46         return new DataTreeModificationImpl<>(nodeId, newNodeBuilder.build(), oldNodeBuilder.build());
  47     }
  48
  49     static void fillLocalMacsToBeRemoved(HwvtepGlobalAugmentationBuilder oldAugmentation, Node configNode,
  50             Node opNode) {
  51         Set<String> logicalSwitchNamesToBeRemoved = getLogicalSwitchesToBeRemoved(configNode, opNode);
  52         List<LocalUcastMacs> localUcastMacsToBeRemoved = getLocalUcastMacsToBeRemoved(opNode,
  53                 logicalSwitchNamesToBeRemoved);
  54         List<LocalMcastMacs> localMcastMacsToBeRemoved = getLocalMcastMacsToBeRemoved(opNode,
  55                 logicalSwitchNamesToBeRemoved);
  56
  57         oldAugmentation.setLocalUcastMacs(localUcastMacsToBeRemoved);
  58         oldAugmentation.setLocalMcastMacs(localMcastMacsToBeRemoved);
  59     }
  60
  61     static List<LocalUcastMacs> getLocalUcastMacsToBeRemoved(Node opNode, final Set<String> removedSwitchNames) {
  62         if (opNode == null || opNode.augmentation(HwvtepGlobalAugmentation.class) == null) {
  63             return null;
  64         }
  65         List<LocalUcastMacs> localUcastMacs = opNode.augmentation(HwvtepGlobalAugmentation.class)
  66                 .getLocalUcastMacs();
  67         if (localUcastMacs == null) {
  68             return null;
  69         }
  70         return localUcastMacs.stream()
  71                 .filter(mac -> removedSwitchNames.contains(
  72                         mac.getLogicalSwitchRef().getValue().firstKeyOf(
  73                                 LogicalSwitches.class).getHwvtepNodeName().getValue()))
  74                 .collect(Collectors.toList());
  75     }
  76
  77     static List<LocalMcastMacs> getLocalMcastMacsToBeRemoved(Node opNode, final Set<String> removedSwitchNames) {
  78         if (opNode == null || opNode.augmentation(HwvtepGlobalAugmentation.class) == null) {
  79             return null;
  80         }
  81         List<LocalMcastMacs> localMcastMacs = opNode.augmentation(HwvtepGlobalAugmentation.class)
  82                 .getLocalMcastMacs();
  83         if (localMcastMacs == null) {
  84             return null;
  85         }
  86         return localMcastMacs.stream()
  87                 .filter(mac -> removedSwitchNames.contains(
  88                         mac.getLogicalSwitchRef().getValue().firstKeyOf(
  89                                 LogicalSwitches.class).getHwvtepNodeName().getValue()))
  90                 .collect(Collectors.toList());
  91     }
  92
  93     static  Set<String> getLogicalSwitchesToBeRemoved(Node configNode, Node opNode) {
  94         Set<String> opSwitchNames = new HashSet<>();
  95         Set<String> cfgSwitchNames = new HashSet<>();
  96         List<LogicalSwitches> cfgLogicalSwitches = new ArrayList<>();
  97         List<LogicalSwitches> opLogicalSwitches = new ArrayList<>();
  98
  99         if (opNode != null && opNode.augmentation(HwvtepGlobalAugmentation.class) != null) {
 100             opLogicalSwitches = opNode.augmentation(HwvtepGlobalAugmentation.class).getLogicalSwitches();
 101         }
 102         if (configNode != null && configNode.augmentation(HwvtepGlobalAugmentation.class) != null) {
 103             cfgLogicalSwitches = configNode.augmentation(HwvtepGlobalAugmentation.class).getLogicalSwitches();
 104         }
 105         if (opLogicalSwitches != null) {
 106             for (LogicalSwitches ls : opLogicalSwitches) {
 107                 opSwitchNames.add(ls.getHwvtepNodeName().getValue());
 108             }
 109         }
 110         if (cfgLogicalSwitches != null) {
 111             for (LogicalSwitches ls : cfgLogicalSwitches) {
 112                 cfgSwitchNames.add(ls.getHwvtepNodeName().getValue());
 113             }
 114         }
 115         final Set<String> removedSwitchNames = Sets.difference(opSwitchNames, cfgSwitchNames);
 116         return removedSwitchNames;
 117     }
 118
 119     static HwvtepGlobalAugmentationBuilder augmentationFromNode(Node node) {
 120         if (node == null) {
 121             return new HwvtepGlobalAugmentationBuilder();
 122         }
 123         HwvtepGlobalAugmentation src = node.augmentation(HwvtepGlobalAugmentation.class);
 124         HwvtepGlobalAugmentationBuilder builder = new HwvtepGlobalAugmentationBuilder();
 125         if (src != null) {
 126             builder.setLogicalSwitches(src.getLogicalSwitches());
 127             builder.setRemoteMcastMacs(src.getRemoteMcastMacs());
 128             builder.setRemoteUcastMacs(src.getRemoteUcastMacs());
 129         }
 130         return builder;
 131     }
 132
 133     static NodeBuilder getNodeBuilderFromNode(Node node) {
 134         NodeBuilder newNodeBuilder;
 135         if (node != null) {
 136             newNodeBuilder = new NodeBuilder(node);
 137             newNodeBuilder.removeAugmentation(HwvtepGlobalAugmentation.class);
 138         } else {
 139             newNodeBuilder = new NodeBuilder();
 140         }
 141         newNodeBuilder.setTerminationPoint(new ArrayList<>());
 142         return newNodeBuilder;
 143     }
 144 }