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

   1 /*
   2  * Copyright (c) 2016 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.base.Predicate;
  11 import com.google.common.collect.Iterables;
  12 import com.google.common.collect.Lists;
  13 import com.google.common.collect.Sets;
  14 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  15 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  16 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentationBuilder;
  17 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalMcastMacs;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalUcastMacs;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LogicalSwitches;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  21 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  22 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  23
  24 import java.util.ArrayList;
  25 import java.util.HashSet;
  26 import java.util.List;
  27 import java.util.Set;
  28
  29 public class GlobalConfigOperationalChangeGetter {
  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 = getAugmentationFromNode(configNode);
  38         HwvtepGlobalAugmentationBuilder oldAugmentation = getAugmentationFromNode(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<Node>(nodeId, newNodeBuilder.build(), oldNodeBuilder.build());
  47     }
  48
  49     static void fillLocalMacsToBeRemoved(HwvtepGlobalAugmentationBuilder oldAugmentation, Node configNode, Node opNode) {
  50         Set<String> logicalSwitchNamesToBeRemoved = getLogicalSwitchesToBeRemoved(configNode, opNode);
  51         List<LocalUcastMacs> localUcastMacsToBeRemoved = getLocalUcastMacsToBeRemoved(opNode,
  52                 logicalSwitchNamesToBeRemoved);
  53         List<LocalMcastMacs> localMcastMacsToBeRemoved = getLocalMcastMacsToBeRemoved(opNode,
  54                 logicalSwitchNamesToBeRemoved);
  55
  56         oldAugmentation.setLocalUcastMacs(localUcastMacsToBeRemoved);
  57         oldAugmentation.setLocalMcastMacs(localMcastMacsToBeRemoved);
  58     }
  59
  60     static List<LocalUcastMacs> getLocalUcastMacsToBeRemoved(Node opNode, final Set<String> removedSwitchNames) {
  61         if (opNode == null || opNode.getAugmentation(HwvtepGlobalAugmentation.class) == null) {
  62             return null;
  63         }
  64         List<LocalUcastMacs> localUcastMacs = opNode.getAugmentation(HwvtepGlobalAugmentation.class).
  65                 getLocalUcastMacs();
  66         if (localUcastMacs == null) {
  67             return null;
  68         }
  69         Iterable<LocalUcastMacs> removedLocalUcastMacs = Iterables.filter(localUcastMacs,
  70                 new Predicate<LocalUcastMacs>() {
  71                     @Override
  72                     public boolean apply(LocalUcastMacs mac) {
  73                         String ls = mac.getLogicalSwitchRef().getValue().firstKeyOf(LogicalSwitches.class).
  74                                 getHwvtepNodeName().getValue();
  75                         if (removedSwitchNames.contains(ls)) {
  76                             return true;
  77                         }
  78                         return false;
  79                     }
  80                 });
  81         return Lists.newArrayList(removedLocalUcastMacs);
  82     }
  83
  84     static List<LocalMcastMacs> getLocalMcastMacsToBeRemoved(Node opNode, final Set<String> removedSwitchNames) {
  85         if (opNode == null || opNode.getAugmentation(HwvtepGlobalAugmentation.class) == null) {
  86             return null;
  87         }
  88         List<LocalMcastMacs> localMcastMacs = opNode.getAugmentation(HwvtepGlobalAugmentation.class).
  89                 getLocalMcastMacs();
  90         if (localMcastMacs == null) {
  91             return null;
  92         }
  93         Iterable<LocalMcastMacs> removedLocalMcastMacs = Iterables.filter(localMcastMacs,
  94                 new Predicate<LocalMcastMacs>() {
  95                     @Override
  96                     public boolean apply(LocalMcastMacs mac) {
  97                         String ls = mac.getLogicalSwitchRef().getValue().firstKeyOf(LogicalSwitches.class).
  98                                 getHwvtepNodeName().getValue();
  99                         if (removedSwitchNames.contains(ls)) {
 100                             return true;
 101                         }
 102                         return false;
 103                     }
 104                 });
 105         return Lists.newArrayList(removedLocalMcastMacs);
 106     }
 107
 108     static  Set<String> getLogicalSwitchesToBeRemoved(Node configNode, Node opNode) {
 109         Set<String> opSwitchNames = new HashSet<>();
 110         Set<String> cfgSwitchNames = new HashSet<>();
 111         List<LogicalSwitches> cfgLogicalSwitches = Lists.newArrayList();
 112         List<LogicalSwitches> opLogicalSwitches = Lists.newArrayList();
 113
 114         if (opNode != null && opNode.getAugmentation(HwvtepGlobalAugmentation.class) != null) {
 115             opLogicalSwitches = opNode.getAugmentation(HwvtepGlobalAugmentation.class).getLogicalSwitches();
 116         }
 117         if (configNode != null && configNode.getAugmentation(HwvtepGlobalAugmentation.class) != null) {
 118             cfgLogicalSwitches = configNode.getAugmentation(HwvtepGlobalAugmentation.class).getLogicalSwitches();
 119         }
 120         if (opLogicalSwitches != null) {
 121             for (LogicalSwitches ls : opLogicalSwitches) {
 122                 opSwitchNames.add(ls.getHwvtepNodeName().getValue());
 123             }
 124         }
 125         if (cfgLogicalSwitches != null) {
 126             for (LogicalSwitches ls : cfgLogicalSwitches) {
 127                 cfgSwitchNames.add(ls.getHwvtepNodeName().getValue());
 128             }
 129         }
 130         final Set<String> removedSwitchNames = Sets.difference(opSwitchNames, cfgSwitchNames);
 131         return removedSwitchNames;
 132     }
 133
 134     static HwvtepGlobalAugmentationBuilder getAugmentationFromNode(Node node ) {
 135         if (node == null) {
 136             return new HwvtepGlobalAugmentationBuilder();
 137         }
 138         HwvtepGlobalAugmentation src = node.getAugmentation(HwvtepGlobalAugmentation.class);
 139         HwvtepGlobalAugmentationBuilder builder = new HwvtepGlobalAugmentationBuilder();
 140         if (src != null) {
 141             builder.setLogicalSwitches(src.getLogicalSwitches());
 142             builder.setRemoteMcastMacs(src.getRemoteMcastMacs());
 143             builder.setRemoteUcastMacs(src.getRemoteUcastMacs());
 144         }
 145         return builder;
 146     }
 147
 148     static NodeBuilder getNodeBuilderFromNode(Node node) {
 149         NodeBuilder newNodeBuilder;
 150         if (node != null) {
 151             newNodeBuilder = new NodeBuilder(node);
 152             newNodeBuilder.removeAugmentation(HwvtepGlobalAugmentation.class);
 153         } else {
 154             newNodeBuilder = new NodeBuilder();
 155         }
 156         newNodeBuilder.setTerminationPoint(new ArrayList<>());
 157         return newNodeBuilder;
 158     }
 159 }