elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/l2gw/ha/listeners/HAConfigNodeListener.java

   1 /*
   2  * Copyright (c) 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.netvirt.elan.l2gw.ha.listeners;
   9
  10 import static org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType.CONFIGURATION;
  11
  12 import com.google.common.base.Optional;
  13 import java.util.Collections;
  14 import java.util.HashSet;
  15 import java.util.Set;
  16 import javax.inject.Inject;
  17 import javax.inject.Singleton;
  18 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  23 import org.opendaylight.genius.utils.hwvtep.HwvtepNodeHACache;
  24 import org.opendaylight.infrautils.metrics.MetricProvider;
  25 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  26 import org.opendaylight.netvirt.elan.l2gw.ha.handlers.HAEventHandler;
  27 import org.opendaylight.netvirt.elan.l2gw.ha.handlers.IHAEventHandler;
  28 import org.opendaylight.netvirt.elan.l2gw.ha.handlers.NodeCopier;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 @Singleton
  35 public class HAConfigNodeListener extends HwvtepNodeBaseListener {
  36
  37     private static final Logger LOG = LoggerFactory.getLogger(HAConfigNodeListener.class);
  38
  39     private final IHAEventHandler haEventHandler;
  40     private final NodeCopier nodeCopier;
  41
  42     @Inject
  43     public HAConfigNodeListener(DataBroker db, HAEventHandler haEventHandler,
  44                                 NodeCopier nodeCopier, HwvtepNodeHACache hwvtepNodeHACache,
  45                                 MetricProvider metricProvider) throws Exception {
  46         super(LogicalDatastoreType.CONFIGURATION, db, hwvtepNodeHACache, metricProvider, true);
  47         this.haEventHandler = haEventHandler;
  48         this.nodeCopier = nodeCopier;
  49     }
  50
  51     @Override
  52     void onPsNodeAdd(InstanceIdentifier<Node> haPsPath,
  53                      Node haPSNode,
  54                      ReadWriteTransaction tx) throws ReadFailedException {
  55         //copy the ps node data to children
  56         String psId = haPSNode.getNodeId().getValue();
  57         Set<InstanceIdentifier<Node>> childSwitchIds = getPSChildrenIdsForHAPSNode(psId);
  58         if (childSwitchIds.isEmpty()) {
  59             LOG.error("Failed to find any ha children {}", haPsPath);
  60             return;
  61         }
  62         for (InstanceIdentifier<Node> childPsPath : childSwitchIds) {
  63             String nodeId =
  64                     HwvtepHAUtil.convertToGlobalNodeId(childPsPath.firstKeyOf(Node.class).getNodeId().getValue());
  65             InstanceIdentifier<Node> childGlobalPath = HwvtepHAUtil.convertToInstanceIdentifier(nodeId);
  66             nodeCopier.copyPSNode(Optional.fromNullable(haPSNode), haPsPath, childPsPath, childGlobalPath,
  67                     LogicalDatastoreType.CONFIGURATION, tx);
  68         }
  69         LOG.trace("Handle config ps node add {}", psId);
  70     }
  71
  72     @Override
  73     void onPsNodeUpdate(Node haPSUpdated,
  74             Node haPSOriginal,
  75             DataObjectModification<Node> mod,
  76             ReadWriteTransaction tx) {
  77         //copy the ps node data to children
  78         String psId = haPSUpdated.getNodeId().getValue();
  79         Set<InstanceIdentifier<Node>> childSwitchIds = getPSChildrenIdsForHAPSNode(psId);
  80         for (InstanceIdentifier<Node> childSwitchId : childSwitchIds) {
  81             haEventHandler.copyHAPSUpdateToChild(childSwitchId, mod, tx);
  82         }
  83     }
  84
  85     @Override
  86     void onGlobalNodeUpdate(InstanceIdentifier<Node> key,
  87                             Node haUpdated,
  88                             Node haOriginal,
  89                             DataObjectModification<Node> mod,
  90                             ReadWriteTransaction tx) {
  91         Set<InstanceIdentifier<Node>> childNodeIds = getHwvtepNodeHACache().getChildrenForHANode(key);
  92         for (InstanceIdentifier<Node> haChildNodeId : childNodeIds) {
  93             haEventHandler.copyHAGlobalUpdateToChild(haChildNodeId, mod, tx);
  94         }
  95     }
  96
  97     @Override
  98     void onPsNodeDelete(InstanceIdentifier<Node> key,
  99                         Node deletedPsNode,
 100                         ReadWriteTransaction tx) throws ReadFailedException {
 101         //delete ps children nodes
 102         String psId = deletedPsNode.getNodeId().getValue();
 103         Set<InstanceIdentifier<Node>> childPsIds = getPSChildrenIdsForHAPSNode(psId);
 104         for (InstanceIdentifier<Node> childPsId : childPsIds) {
 105             HwvtepHAUtil.deleteNodeIfPresent(tx, CONFIGURATION, childPsId);
 106         }
 107     }
 108
 109     @Override
 110     void onGlobalNodeDelete(InstanceIdentifier<Node> key,
 111                             Node haNode,
 112                             ReadWriteTransaction tx)
 113             throws ReadFailedException {
 114         //delete child nodes
 115         Set<InstanceIdentifier<Node>> children = getHwvtepNodeHACache().getChildrenForHANode(key);
 116         for (InstanceIdentifier<Node> childId : children) {
 117             HwvtepHAUtil.deleteNodeIfPresent(tx, CONFIGURATION, childId);
 118         }
 119         HwvtepHAUtil.deletePSNodesOfNode(key, haNode, tx);
 120     }
 121
 122     private Set<InstanceIdentifier<Node>> getPSChildrenIdsForHAPSNode(String psNodId) {
 123         if (!psNodId.contains(HwvtepHAUtil.PHYSICALSWITCH)) {
 124             return Collections.emptySet();
 125         }
 126         String nodeId = HwvtepHAUtil.convertToGlobalNodeId(psNodId);
 127         InstanceIdentifier<Node> iid = HwvtepHAUtil.convertToInstanceIdentifier(nodeId);
 128         if (getHwvtepNodeHACache().isHAParentNode(iid)) {
 129             Set<InstanceIdentifier<Node>> childSwitchIds = new HashSet<>();
 130             Set<InstanceIdentifier<Node>> childGlobalIds = getHwvtepNodeHACache().getChildrenForHANode(iid);
 131             final String append = psNodId.substring(psNodId.indexOf(HwvtepHAUtil.PHYSICALSWITCH));
 132             for (InstanceIdentifier<Node> childId : childGlobalIds) {
 133                 String childIdVal = childId.firstKeyOf(Node.class).getNodeId().getValue();
 134                 childSwitchIds.add(HwvtepHAUtil.convertToInstanceIdentifier(childIdVal + append));
 135             }
 136             return childSwitchIds;
 137         }
 138         return Collections.emptySet();
 139     }
 140 }