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.genius.infra.Datastore.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 java.util.concurrent.ExecutionException;
  17 import javax.inject.Inject;
  18 import javax.inject.Singleton;
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  21 import org.opendaylight.genius.infra.Datastore.Configuration;
  22 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
  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<Configuration> {
  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(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                      TypedReadWriteTransaction<Configuration> tx)
  55              throws ExecutionException, InterruptedException {
  56         //copy the ps node data to children
  57         String psId = haPSNode.getNodeId().getValue();
  58         Set<InstanceIdentifier<Node>> childSwitchIds = getPSChildrenIdsForHAPSNode(psId);
  59         if (childSwitchIds.isEmpty()) {
  60             LOG.error("Failed to find any ha children {}", haPsPath);
  61             return;
  62         }
  63         for (InstanceIdentifier<Node> childPsPath : childSwitchIds) {
  64             String nodeId =
  65                     HwvtepHAUtil.convertToGlobalNodeId(childPsPath.firstKeyOf(Node.class).getNodeId().getValue());
  66             InstanceIdentifier<Node> childGlobalPath = HwvtepHAUtil.convertToInstanceIdentifier(nodeId);
  67             nodeCopier.copyPSNode(Optional.fromNullable(haPSNode), haPsPath, childPsPath, childGlobalPath,
  68                     CONFIGURATION, tx);
  69         }
  70         LOG.trace("Handle config ps node add {}", psId);
  71     }
  72
  73     @Override
  74     void onPsNodeUpdate(Node haPSUpdated,
  75         DataObjectModification<Node> mod,
  76         TypedReadWriteTransaction<Configuration> 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                             TypedReadWriteTransaction<Configuration> 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                         TypedReadWriteTransaction<Configuration> tx)
 101             throws ExecutionException, InterruptedException {
 102         //delete ps children nodes
 103         String psId = deletedPsNode.getNodeId().getValue();
 104         Set<InstanceIdentifier<Node>> childPsIds = getPSChildrenIdsForHAPSNode(psId);
 105         for (InstanceIdentifier<Node> childPsId : childPsIds) {
 106             HwvtepHAUtil.deleteNodeIfPresent(tx, childPsId);
 107         }
 108     }
 109
 110     @Override
 111     void onGlobalNodeDelete(InstanceIdentifier<Node> key,
 112                             Node haNode,
 113                             TypedReadWriteTransaction<Configuration> tx)
 114             throws ExecutionException, InterruptedException {
 115         //delete child nodes
 116         Set<InstanceIdentifier<Node>> children = getHwvtepNodeHACache().getChildrenForHANode(key);
 117         for (InstanceIdentifier<Node> childId : children) {
 118             HwvtepHAUtil.deleteNodeIfPresent(tx, childId);
 119         }
 120         HwvtepHAUtil.deletePSNodesOfNode(key, haNode, tx);
 121     }
 122
 123     private Set<InstanceIdentifier<Node>> getPSChildrenIdsForHAPSNode(String psNodId) {
 124         if (!psNodId.contains(HwvtepHAUtil.PHYSICALSWITCH)) {
 125             return Collections.emptySet();
 126         }
 127         String nodeId = HwvtepHAUtil.convertToGlobalNodeId(psNodId);
 128         InstanceIdentifier<Node> iid = HwvtepHAUtil.convertToInstanceIdentifier(nodeId);
 129         if (getHwvtepNodeHACache().isHAParentNode(iid)) {
 130             Set<InstanceIdentifier<Node>> childSwitchIds = new HashSet<>();
 131             Set<InstanceIdentifier<Node>> childGlobalIds = getHwvtepNodeHACache().getChildrenForHANode(iid);
 132             final String append = psNodId.substring(psNodId.indexOf(HwvtepHAUtil.PHYSICALSWITCH));
 133             for (InstanceIdentifier<Node> childId : childGlobalIds) {
 134                 String childIdVal = childId.firstKeyOf(Node.class).getNodeId().getValue();
 135                 childSwitchIds.add(HwvtepHAUtil.convertToInstanceIdentifier(childIdVal + append));
 136             }
 137             return childSwitchIds;
 138         }
 139         return Collections.emptySet();
 140     }
 141 }