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.Set;
  14 import java.util.concurrent.ExecutionException;
  15 import javax.inject.Inject;
  16 import javax.inject.Singleton;
  17 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  18 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  19 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  22 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  23 import org.opendaylight.netvirt.elan.l2gw.ha.handlers.HAEventHandler;
  24 import org.opendaylight.netvirt.elan.l2gw.ha.handlers.IHAEventHandler;
  25 import org.opendaylight.netvirt.elan.l2gw.ha.handlers.NodeCopier;
  26 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  27 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  28
  29 @Singleton
  30 public class HAConfigNodeListener extends HwvtepNodeBaseListener {
  31     private final IHAEventHandler haEventHandler;
  32     private final NodeCopier nodeCopier;
  33
  34     @Inject
  35     public HAConfigNodeListener(DataBroker db, HAEventHandler haEventHandler,
  36                                 NodeCopier nodeCopier) throws Exception {
  37         super(LogicalDatastoreType.CONFIGURATION, db);
  38         this.haEventHandler = haEventHandler;
  39         this.nodeCopier = nodeCopier;
  40     }
  41
  42     @Override
  43     void onPsNodeAdd(InstanceIdentifier<Node> haPsPath,
  44                      Node haPSNode,
  45                      ReadWriteTransaction tx) throws ReadFailedException {
  46         //copy the ps node data to children
  47         String psId = haPSNode.getNodeId().getValue();
  48         Set<InstanceIdentifier<Node>> childSwitchIds = HwvtepHAUtil.getPSChildrenIdsForHAPSNode(psId);
  49         if (childSwitchIds.isEmpty()) {
  50             LOG.error("Failed to find any ha children {}", haPsPath);
  51             return;
  52         }
  53         for (InstanceIdentifier<Node> childPsPath : childSwitchIds) {
  54             String nodeId =
  55                     HwvtepHAUtil.convertToGlobalNodeId(childPsPath.firstKeyOf(Node.class).getNodeId().getValue());
  56             InstanceIdentifier<Node> childGlobalPath = HwvtepHAUtil.convertToInstanceIdentifier(nodeId);
  57             nodeCopier.copyPSNode(Optional.fromNullable(haPSNode), haPsPath, childPsPath, childGlobalPath,
  58                     LogicalDatastoreType.CONFIGURATION, tx);
  59         }
  60         LOG.trace("Handle config ps node add {}", psId);
  61     }
  62
  63     @Override
  64     void onPsNodeUpdate(Node haPSUpdated,
  65             Node haPSOriginal,
  66             DataObjectModification<Node> mod,
  67             ReadWriteTransaction tx) throws InterruptedException, ExecutionException, ReadFailedException {
  68         //copy the ps node data to children
  69         String psId = haPSUpdated.getNodeId().getValue();
  70         Set<InstanceIdentifier<Node>> childSwitchIds = HwvtepHAUtil.getPSChildrenIdsForHAPSNode(psId);
  71         for (InstanceIdentifier<Node> childSwitchId : childSwitchIds) {
  72             haEventHandler.copyHAPSUpdateToChild(childSwitchId, mod, tx);
  73         }
  74     }
  75
  76     @Override
  77     void onGlobalNodeUpdate(InstanceIdentifier<Node> key,
  78                             Node haUpdated,
  79                             Node haOriginal,
  80                             DataObjectModification<Node> mod,
  81                             ReadWriteTransaction tx)
  82             throws InterruptedException, ExecutionException, ReadFailedException {
  83         Set<InstanceIdentifier<Node>> childNodeIds = hwvtepHACache.getChildrenForHANode(key);
  84         for (InstanceIdentifier<Node> haChildNodeId : childNodeIds) {
  85             haEventHandler.copyHAGlobalUpdateToChild(haChildNodeId, mod, tx);
  86         }
  87     }
  88
  89     @Override
  90     void onPsNodeDelete(InstanceIdentifier<Node> key,
  91                         Node deletedPsNode,
  92                         ReadWriteTransaction tx) throws ReadFailedException {
  93         //delete ps children nodes
  94         String psId = deletedPsNode.getNodeId().getValue();
  95         Set<InstanceIdentifier<Node>> childPsIds = HwvtepHAUtil.getPSChildrenIdsForHAPSNode(psId);
  96         for (InstanceIdentifier<Node> childPsId : childPsIds) {
  97             HwvtepHAUtil.deleteNodeIfPresent(tx, CONFIGURATION, childPsId);
  98         }
  99     }
 100
 101     @Override
 102     void onGlobalNodeDelete(InstanceIdentifier<Node> key,
 103                             Node haNode,
 104                             ReadWriteTransaction tx)
 105             throws ReadFailedException {
 106         //delete child nodes
 107         Set<InstanceIdentifier<Node>> children = hwvtepHACache.getChildrenForHANode(key);
 108         for (InstanceIdentifier<Node> childId : children) {
 109             HwvtepHAUtil.deleteNodeIfPresent(tx, CONFIGURATION, childId);
 110         }
 111         HwvtepHAUtil.deletePSNodesOfNode(key, haNode, tx);
 112     }
 113 }