elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/l2gw/ha/handlers/OpNodeUpdatedHandler.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.netvirt.elan.l2gw.ha.handlers;
   9
  10 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  11 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  12 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  13 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  14 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalAugmentationMerger;
  15 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalNodeMerger;
  16 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSAugmentationMerger;
  17 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSNodeMerger;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  20 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  21 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  22
  23 public class OpNodeUpdatedHandler {
  24
  25     GlobalAugmentationMerger globalAugmentationMerger = GlobalAugmentationMerger.getInstance();
  26     PSAugmentationMerger psAugmentationMerger     = PSAugmentationMerger.getInstance();
  27     GlobalNodeMerger globalNodeMerger         = GlobalNodeMerger.getInstance();
  28     PSNodeMerger psNodeMerger             = PSNodeMerger.getInstance();
  29
  30     public void handle(Node updatedSrcNode, Node origSrcNode, InstanceIdentifier<Node> haPath, ReadWriteTransaction tx)
  31             throws ReadFailedException {
  32         if (updatedSrcNode.getAugmentation(HwvtepGlobalAugmentation.class) != null) {
  33             copyChildGlobalOpUpdateToHAParent(updatedSrcNode, origSrcNode, haPath, tx);
  34         } else {
  35             copyChildPsOpUpdateToHAParent(updatedSrcNode, origSrcNode, haPath, tx);
  36         }
  37     }
  38
  39     /**
  40      * Copy HA ps node update to HA child ps node of operational data tree.
  41      *
  42      * @param updatedSrcPSNode Updated HA child ps node
  43      * @param origSrcPSNode Original HA ps node
  44      * @param haPath HA node path
  45      * @param tx Transaction
  46      * @throws ReadFailedException  Exception thrown if read fails
  47      */
  48     public void copyChildPsOpUpdateToHAParent(Node updatedSrcPSNode,
  49                                               Node origSrcPSNode,
  50                                               InstanceIdentifier<Node> haPath,
  51                                               ReadWriteTransaction tx) throws ReadFailedException {
  52
  53         InstanceIdentifier<Node> haPSPath = HwvtepHAUtil.convertPsPath(updatedSrcPSNode, haPath);
  54         Node existingHAPSNode = HwvtepHAUtil.readNode(tx, LogicalDatastoreType.OPERATIONAL, haPSPath);
  55
  56         PhysicalSwitchAugmentation updatedSrc   = HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(updatedSrcPSNode);
  57         PhysicalSwitchAugmentation origSrc      = HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(origSrcPSNode);
  58         PhysicalSwitchAugmentation existingData = HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(existingHAPSNode);
  59
  60         psAugmentationMerger.mergeOpUpdate(existingData, updatedSrc, origSrc, haPSPath, tx);
  61         psNodeMerger.mergeOpUpdate(existingHAPSNode, updatedSrcPSNode, origSrcPSNode, haPSPath, tx);
  62     }
  63
  64     /**
  65      * Copy updated data from HA node to child node of operational data tree.
  66      *
  67      * @param updatedSrcNode Updated HA child node
  68      * @param origSrcNode Original HA node
  69      * @param haPath HA node path
  70      * @param tx Transaction
  71      * @throws ReadFailedException  Exception thrown if read fails
  72      */
  73     public void copyChildGlobalOpUpdateToHAParent(Node updatedSrcNode,
  74                                                   Node origSrcNode,
  75                                                   InstanceIdentifier<Node> haPath,
  76                                                   ReadWriteTransaction tx) throws ReadFailedException {
  77
  78         Node existingDstNode = HwvtepHAUtil.readNode(tx, LogicalDatastoreType.OPERATIONAL, haPath);
  79         if (existingDstNode == null) {
  80             //No dst present nothing to copy
  81             return;
  82         }
  83         HwvtepGlobalAugmentation existingData    = HwvtepHAUtil.getGlobalAugmentationOfNode(existingDstNode);
  84         HwvtepGlobalAugmentation updatedSrc = HwvtepHAUtil.getGlobalAugmentationOfNode(updatedSrcNode);
  85         HwvtepGlobalAugmentation origSrc    = HwvtepHAUtil.getGlobalAugmentationOfNode(origSrcNode);
  86
  87         globalAugmentationMerger.mergeOpUpdate(existingData, updatedSrc, origSrc, haPath, tx);
  88         globalNodeMerger.mergeOpUpdate(existingDstNode, updatedSrcNode, origSrcNode, haPath, tx);
  89     }
  90
  91 }