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 java.util.Collections;
  13 import java.util.HashSet;
  14 import java.util.Optional;
  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.genius.infra.Datastore.Configuration;
  20 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
  21 import org.opendaylight.genius.utils.hwvtep.HwvtepNodeHACache;
  22 import org.opendaylight.infrautils.metrics.MetricProvider;
  23 import org.opendaylight.mdsal.binding.api.DataBroker;
  24 import org.opendaylight.mdsal.binding.api.DataObjectModification;
  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.netvirt.elan.l2gw.recovery.impl.L2GatewayServiceRecoveryHandler;
  30 import org.opendaylight.serviceutils.srm.RecoverableListener;
  31 import org.opendaylight.serviceutils.srm.ServiceRecoveryRegistry;
  32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  33 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  34 import org.slf4j.Logger;
  35 import org.slf4j.LoggerFactory;
  36
  37 @Singleton
  38 public class HAConfigNodeListener extends HwvtepNodeBaseListener<Configuration> implements RecoverableListener {
  39
  40     private static final Logger LOG = LoggerFactory.getLogger(HAConfigNodeListener.class);
  41
  42     private final IHAEventHandler haEventHandler;
  43     private final NodeCopier nodeCopier;
  44
  45     @Inject
  46     public HAConfigNodeListener(DataBroker db, HAEventHandler haEventHandler,
  47                                 NodeCopier nodeCopier, HwvtepNodeHACache hwvtepNodeHACache,
  48                                 MetricProvider metricProvider,
  49                                 final L2GatewayServiceRecoveryHandler l2GatewayServiceRecoveryHandler,
  50                                 final ServiceRecoveryRegistry serviceRecoveryRegistry) throws Exception {
  51         super(CONFIGURATION, db, hwvtepNodeHACache, metricProvider, true);
  52         this.haEventHandler = haEventHandler;
  53         this.nodeCopier = nodeCopier;
  54         serviceRecoveryRegistry.addRecoverableListener(l2GatewayServiceRecoveryHandler.buildServiceRegistryKey(), this);
  55     }
  56
  57     @Override
  58     @SuppressWarnings("all")
  59     public void registerListener() {
  60         try {
  61             LOG.info("Registering HAConfigNodeListener");
  62             registerListener(CONFIGURATION, getDataBroker());
  63         } catch (Exception e) {
  64             LOG.error("HA Config Node register listener error.");
  65         }
  66     }
  67
  68     public void deregisterListener() {
  69         LOG.info("Deregistering HAConfigNodeListener");
  70         super.close();
  71     }
  72
  73     @Override
  74     void onPsNodeAdd(InstanceIdentifier<Node> haPsPath,
  75                      Node haPSNode,
  76                      TypedReadWriteTransaction<Configuration> tx)
  77              throws ExecutionException, InterruptedException {
  78         //copy the ps node data to children
  79         String psId = haPSNode.getNodeId().getValue();
  80         Set<InstanceIdentifier<Node>> childSwitchIds = getPSChildrenIdsForHAPSNode(psId);
  81         if (childSwitchIds.isEmpty()) {
  82             LOG.error("Failed to find any ha children {}", haPsPath);
  83             return;
  84         }
  85         for (InstanceIdentifier<Node> childPsPath : childSwitchIds) {
  86             String nodeId =
  87                     HwvtepHAUtil.convertToGlobalNodeId(childPsPath.firstKeyOf(Node.class).getNodeId().getValue());
  88             InstanceIdentifier<Node> childGlobalPath = HwvtepHAUtil.convertToInstanceIdentifier(nodeId);
  89             nodeCopier.copyPSNode(Optional.ofNullable(haPSNode), haPsPath, childPsPath, childGlobalPath,
  90                     CONFIGURATION, tx);
  91         }
  92         LOG.trace("Handle config ps node add {}", psId);
  93     }
  94
  95     @Override
  96     void onPsNodeUpdate(Node haPSUpdated,
  97         DataObjectModification<Node> mod,
  98         TypedReadWriteTransaction<Configuration> tx) {
  99         //copy the ps node data to children
 100         String psId = haPSUpdated.getNodeId().getValue();
 101         Set<InstanceIdentifier<Node>> childSwitchIds = getPSChildrenIdsForHAPSNode(psId);
 102         for (InstanceIdentifier<Node> childSwitchId : childSwitchIds) {
 103             haEventHandler.copyHAPSUpdateToChild(childSwitchId, mod, tx);
 104         }
 105     }
 106
 107     @Override
 108     void onGlobalNodeUpdate(InstanceIdentifier<Node> key,
 109                             Node haUpdated,
 110                             Node haOriginal,
 111                             DataObjectModification<Node> mod,
 112                             TypedReadWriteTransaction<Configuration> tx) {
 113         Set<InstanceIdentifier<Node>> childNodeIds = getHwvtepNodeHACache().getChildrenForHANode(key);
 114         for (InstanceIdentifier<Node> haChildNodeId : childNodeIds) {
 115             haEventHandler.copyHAGlobalUpdateToChild(haChildNodeId, mod, tx);
 116         }
 117     }
 118
 119     @Override
 120     void onPsNodeDelete(InstanceIdentifier<Node> key,
 121                         Node deletedPsNode,
 122                         TypedReadWriteTransaction<Configuration> tx)
 123             throws ExecutionException, InterruptedException {
 124         //delete ps children nodes
 125         String psId = deletedPsNode.getNodeId().getValue();
 126         Set<InstanceIdentifier<Node>> childPsIds = getPSChildrenIdsForHAPSNode(psId);
 127         for (InstanceIdentifier<Node> childPsId : childPsIds) {
 128             HwvtepHAUtil.deleteNodeIfPresent(tx, childPsId);
 129         }
 130     }
 131
 132     @Override
 133     void onGlobalNodeDelete(InstanceIdentifier<Node> key,
 134                             Node haNode,
 135                             TypedReadWriteTransaction<Configuration> tx)
 136             throws ExecutionException, InterruptedException {
 137         //delete child nodes
 138         Set<InstanceIdentifier<Node>> children = getHwvtepNodeHACache().getChildrenForHANode(key);
 139         for (InstanceIdentifier<Node> childId : children) {
 140             HwvtepHAUtil.deleteNodeIfPresent(tx, childId);
 141         }
 142         HwvtepHAUtil.deletePSNodesOfNode(key, haNode, tx);
 143     }
 144
 145     private Set<InstanceIdentifier<Node>> getPSChildrenIdsForHAPSNode(String psNodId) {
 146         if (!psNodId.contains(HwvtepHAUtil.PHYSICALSWITCH)) {
 147             return Collections.emptySet();
 148         }
 149         String nodeId = HwvtepHAUtil.convertToGlobalNodeId(psNodId);
 150         InstanceIdentifier<Node> iid = HwvtepHAUtil.convertToInstanceIdentifier(nodeId);
 151         if (getHwvtepNodeHACache().isHAParentNode(iid)) {
 152             Set<InstanceIdentifier<Node>> childSwitchIds = new HashSet<>();
 153             Set<InstanceIdentifier<Node>> childGlobalIds = getHwvtepNodeHACache().getChildrenForHANode(iid);
 154             final String append = psNodId.substring(psNodId.indexOf(HwvtepHAUtil.PHYSICALSWITCH));
 155             for (InstanceIdentifier<Node> childId : childGlobalIds) {
 156                 String childIdVal = childId.firstKeyOf(Node.class).getNodeId().getValue();
 157                 childSwitchIds.add(HwvtepHAUtil.convertToInstanceIdentifier(childIdVal + append));
 158             }
 159             return childSwitchIds;
 160         }
 161         return Collections.emptySet();
 162     }
 163 }