elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/l2gw/ha/handlers/NodeCopier.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.handlers;
   9
  10 import com.google.common.util.concurrent.FutureCallback;
  11 import com.google.common.util.concurrent.Futures;
  12 import com.google.common.util.concurrent.MoreExecutors;
  13 import java.util.Optional;
  14 import java.util.concurrent.ExecutionException;
  15 import javax.inject.Singleton;
  16 import org.opendaylight.mdsal.binding.util.Datastore;
  17 import org.opendaylight.mdsal.binding.util.Datastore.Configuration;
  18 import org.opendaylight.mdsal.binding.util.Datastore.Operational;
  19 import org.opendaylight.mdsal.binding.util.TypedReadWriteTransaction;
  20 import org.opendaylight.netvirt.elan.l2gw.ha.BatchedTransaction;
  21 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  22 import org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAJobScheduler;
  23 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalAugmentationMerger;
  24 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalNodeMerger;
  25 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSAugmentationMerger;
  26 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSNodeMerger;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentationBuilder;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalRef;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentationBuilder;
  32 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  33 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.node.TerminationPoint;
  35 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  36 import org.slf4j.Logger;
  37 import org.slf4j.LoggerFactory;
  38
  39 @Singleton
  40 public class NodeCopier<D extends Datastore> implements INodeCopier<D> {
  41
  42     private static final Logger LOG = LoggerFactory.getLogger(NodeCopier.class);
  43
  44     GlobalAugmentationMerger globalAugmentationMerger = GlobalAugmentationMerger.getInstance();
  45     PSAugmentationMerger psAugmentationMerger = PSAugmentationMerger.getInstance();
  46     GlobalNodeMerger globalNodeMerger = GlobalNodeMerger.getInstance();
  47     PSNodeMerger psNodeMerger = PSNodeMerger.getInstance();
  48
  49     @Override
  50     public <D extends Datastore> void copyGlobalNode(Optional<Node> srcGlobalNodeOptional,
  51                         InstanceIdentifier<Node> srcPath,
  52                         InstanceIdentifier<Node> dstPath,
  53                         Class<D> logicalDatastoreType,
  54                         TypedReadWriteTransaction<D> tx) {
  55
  56         HwvtepGlobalAugmentation srcGlobalAugmentation =
  57                 srcGlobalNodeOptional.get().augmentation(HwvtepGlobalAugmentation.class);
  58         if (srcGlobalAugmentation == null) {
  59             if (Configuration.class.equals(logicalDatastoreType)) {
  60                 tx.put(srcPath, new NodeBuilder().setNodeId(srcPath
  61                         .firstKeyOf(Node.class).getNodeId()).build());
  62                 return;
  63             }
  64             else {
  65                 LOG.error("Operational child node information is not present");
  66                 return;
  67             }
  68         }
  69         NodeBuilder haNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPath);
  70         HwvtepGlobalAugmentationBuilder haBuilder = new HwvtepGlobalAugmentationBuilder();
  71         Optional<Node> existingDstGlobalNodeOptional = Optional.empty();
  72         try {
  73             existingDstGlobalNodeOptional = tx.read(dstPath).get();
  74         } catch (ExecutionException | InterruptedException e) {
  75             LOG.error("READ Failed for {} during copyGlobalNode", dstPath);
  76         }
  77         Node existingDstGlobalNode = existingDstGlobalNodeOptional.isPresent()
  78             ? existingDstGlobalNodeOptional.get() : null;
  79         HwvtepGlobalAugmentation existingHAGlobalData = HwvtepHAUtil
  80             .getGlobalAugmentationOfNode(existingDstGlobalNode);
  81         if (Operational.class.equals(logicalDatastoreType)) {
  82             globalAugmentationMerger.mergeOperationalData(
  83                     haBuilder, existingHAGlobalData, srcGlobalAugmentation, dstPath);
  84             globalNodeMerger.mergeOperationalData(haNodeBuilder,
  85                     existingDstGlobalNode, srcGlobalNodeOptional.get(), dstPath);
  86
  87             haBuilder.setManagers(HwvtepHAUtil.buildManagersForHANode(srcGlobalNodeOptional.get(),
  88                     existingDstGlobalNodeOptional));
  89
  90         } else {
  91             globalAugmentationMerger.mergeConfigData(haBuilder, srcGlobalAugmentation, dstPath);
  92             globalNodeMerger.mergeConfigData(haNodeBuilder, srcGlobalNodeOptional.get(), dstPath);
  93         }
  94
  95         haBuilder.setDbVersion(srcGlobalAugmentation.getDbVersion());
  96         haNodeBuilder.addAugmentation(haBuilder.build());
  97         Node haNode = haNodeBuilder.build();
  98         if (Operational.class.equals(logicalDatastoreType)) {
  99             tx.mergeParentStructureMerge(dstPath, haNode);
 100         } else {
 101             tx.mergeParentStructurePut(dstPath, haNode);
 102         }
 103     }
 104
 105
 106     public <D extends Datastore> void copyPSNode(Optional<Node> srcPsNodeOptional,
 107                            InstanceIdentifier<Node> srcPsPath,
 108                            InstanceIdentifier<Node> dstPsPath,
 109                            InstanceIdentifier<Node> dstGlobalPath,
 110                            Class<D> logicalDatastoreType,
 111                            TypedReadWriteTransaction<D> tx) {
 112         if (!srcPsNodeOptional.isPresent() && Configuration.class.equals(logicalDatastoreType)) {
 113             Futures.addCallback(tx.read(srcPsPath), new FutureCallback<Optional<Node>>() {
 114                 @Override
 115                 public void onSuccess(Optional<Node> nodeOptional) {
 116                     HAJobScheduler.getInstance().submitJob(() -> {
 117                         TypedReadWriteTransaction<D> tx1 = new BatchedTransaction(
 118                             logicalDatastoreType);
 119                         if (nodeOptional.isPresent()) {
 120                             copyPSNode(nodeOptional,
 121                                 srcPsPath, dstPsPath, dstGlobalPath, logicalDatastoreType, tx1);
 122                         } else {
 123                             tx1.put(dstPsPath, new NodeBuilder().setNodeId(dstPsPath
 124                                 .firstKeyOf(Node.class).getNodeId()).build());
 125                         }
 126
 127                     });
 128                 }
 129
 130                 @Override
 131                 public void onFailure(Throwable throwable) {
 132                 }
 133             }, MoreExecutors.directExecutor());
 134             return;
 135         }
 136         NodeBuilder dstPsNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPsPath);
 137         PhysicalSwitchAugmentationBuilder dstPsAugmentationBuilder = new PhysicalSwitchAugmentationBuilder();
 138
 139         PhysicalSwitchAugmentation srcPsAugmenatation =
 140                 srcPsNodeOptional.get().augmentation(PhysicalSwitchAugmentation.class);
 141         Node existingDstPsNode = null;
 142         try {
 143             existingDstPsNode = HwvtepHAUtil.readNode(tx, dstPsPath);
 144         } catch (ExecutionException | InterruptedException e) {
 145             LOG.error("NodeCopier Read Failed for Node:{}", dstPsPath);
 146         }
 147         PhysicalSwitchAugmentation existingDstPsAugmentation =
 148                 HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(existingDstPsNode);
 149         mergeOpManagedByAttributes(srcPsAugmenatation, dstPsAugmentationBuilder, dstGlobalPath);
 150         if (Operational.class.equals(logicalDatastoreType)) {
 151             psAugmentationMerger.mergeOperationalData(dstPsAugmentationBuilder, existingDstPsAugmentation,
 152                     srcPsAugmenatation, dstPsPath);
 153             psNodeMerger.mergeOperationalData(dstPsNodeBuilder, existingDstPsNode, srcPsNodeOptional.get(), dstPsPath);
 154             dstPsNodeBuilder.addAugmentation(dstPsAugmentationBuilder.build());
 155             Node dstPsNode = dstPsNodeBuilder.build();
 156             tx.mergeParentStructureMerge(dstPsPath, dstPsNode);
 157         } else {
 158             /* Below Change done to rerduce the side of tx.put() generated here.
 159             1. Check if child node already exists in config-topo.
 160             2. If not present, then construct Child ps-node with augmentation data only and do tx.put(node).
 161             Followed by, then tx.put(termination-points) for each of termination-points present in parent ps-node.
 162             3. If present, then construct augmentation data and do tx.put(augmentation) then followed by
 163             tx.put(termination-points) for each of termination-points present in parent ps-node.
 164              */
 165             String dstNodeName = dstPsNodeBuilder.getNodeId().getValue();
 166             psAugmentationMerger.mergeConfigData(dstPsAugmentationBuilder, srcPsAugmenatation, dstPsPath);
 167             try {
 168                 boolean isEntryExists = tx.exists(dstPsPath).get();
 169                 if (isEntryExists) {
 170                     LOG.info("Destination PS Node: {} already exists in config-topo.", dstNodeName);
 171                     InstanceIdentifier<PhysicalSwitchAugmentation> dstPsAugPath =
 172                         dstPsPath.augmentation(PhysicalSwitchAugmentation.class);
 173                     tx.put(dstPsAugPath, dstPsAugmentationBuilder.build());
 174                 } else {
 175                     LOG.info("Destination PS Node: {} doesn't still exist in config-topo.",
 176                         dstNodeName);
 177                     dstPsNodeBuilder.addAugmentation(dstPsAugmentationBuilder.build());
 178                     Node dstPsNode = dstPsNodeBuilder.build();
 179                     tx.put(dstPsPath, dstPsNode);
 180                 }
 181             } catch (InterruptedException | ExecutionException e) {
 182                 LOG.error("Error While checking Existing on Node {} in config-topo", dstPsPath);
 183             }
 184             psNodeMerger.mergeConfigData(dstPsNodeBuilder, srcPsNodeOptional.get(), dstPsPath);
 185
 186             if (dstPsNodeBuilder.getTerminationPoint() != null) {
 187                 dstPsNodeBuilder.getTerminationPoint().values().forEach(terminationPoint -> {
 188                     InstanceIdentifier<TerminationPoint> terminationPointPath =
 189                         dstPsPath.child(TerminationPoint.class, terminationPoint.key());
 190                     tx.put(terminationPointPath, terminationPoint);
 191                     LOG.trace("Destination PS Node: {} updated with termination-point : {}",
 192                         dstNodeName, terminationPoint.key());
 193                 });
 194             }
 195         }
 196         LOG.debug("Copied {} physical switch node from {} to {}", logicalDatastoreType, srcPsPath, dstPsPath);
 197     }
 198
 199     public void mergeOpManagedByAttributes(PhysicalSwitchAugmentation psAugmentation,
 200                                            PhysicalSwitchAugmentationBuilder builder,
 201                                            InstanceIdentifier<Node> haNodePath) {
 202         builder.setManagedBy(new HwvtepGlobalRef(haNodePath));
 203         if (psAugmentation != null) {
 204             builder.setHwvtepNodeName(psAugmentation.getHwvtepNodeName());
 205             builder.setHwvtepNodeDescription(psAugmentation.getHwvtepNodeDescription());
 206             builder.setTunnelIps(psAugmentation.getTunnelIps());
 207             if (psAugmentation.getHwvtepNodeName() != null) {
 208                 builder.setPhysicalSwitchUuid(HwvtepHAUtil.getUUid(psAugmentation.getHwvtepNodeName().getValue()));
 209             }
 210         }
 211     }
 212 }