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 static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  11
  12 import com.google.common.util.concurrent.FutureCallback;
  13 import com.google.common.util.concurrent.Futures;
  14 import com.google.common.util.concurrent.MoreExecutors;
  15 import java.util.Optional;
  16 import java.util.concurrent.ExecutionException;
  17 import javax.inject.Inject;
  18 import javax.inject.Singleton;
  19 import org.opendaylight.genius.infra.Datastore;
  20 import org.opendaylight.genius.infra.Datastore.Configuration;
  21 import org.opendaylight.genius.infra.Datastore.Operational;
  22 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  23 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  24 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
  25 import org.opendaylight.infrautils.utils.concurrent.LoggingFutures;
  26 import org.opendaylight.mdsal.binding.api.DataBroker;
  27 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  28 import org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAJobScheduler;
  29 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalAugmentationMerger;
  30 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalNodeMerger;
  31 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSAugmentationMerger;
  32 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSNodeMerger;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentationBuilder;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalRef;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentationBuilder;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.Managers;
  39 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  40 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  41 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  42 import org.slf4j.Logger;
  43 import org.slf4j.LoggerFactory;
  44
  45 @Singleton
  46 public class NodeCopier {
  47
  48     private static final Logger LOG = LoggerFactory.getLogger(NodeCopier.class);
  49
  50     private final GlobalAugmentationMerger globalAugmentationMerger = GlobalAugmentationMerger.getInstance();
  51     private final PSAugmentationMerger psAugmentationMerger = PSAugmentationMerger.getInstance();
  52     private final GlobalNodeMerger globalNodeMerger = GlobalNodeMerger.getInstance();
  53     private final PSNodeMerger psNodeMerger = PSNodeMerger.getInstance();
  54     private final ManagedNewTransactionRunner txRunner;
  55
  56     @Inject
  57     public NodeCopier(DataBroker db) {
  58         this.txRunner = new ManagedNewTransactionRunnerImpl(db);
  59     }
  60
  61     public <D extends Datastore> void copyGlobalNode(Optional<Node> srcGlobalNodeOptional,
  62                                InstanceIdentifier<Node> srcPath,
  63                                InstanceIdentifier<Node> dstPath,
  64                                Class<D> datastoreType,
  65                                TypedReadWriteTransaction<D> tx)
  66             throws ExecutionException, InterruptedException {
  67         if (!srcGlobalNodeOptional.isPresent() && Configuration.class.equals(datastoreType)) {
  68             Futures.addCallback(tx.read(srcPath), new FutureCallback<Optional<Node>>() {
  69                 @Override
  70                 public void onSuccess(Optional<Node> nodeOptional) {
  71                     HAJobScheduler.getInstance().submitJob(() -> LoggingFutures.addErrorLogging(
  72                         txRunner.callWithNewReadWriteTransactionAndSubmit(datastoreType, tx -> {
  73                             if (nodeOptional.isPresent()) {
  74                                 copyGlobalNode(nodeOptional, srcPath, dstPath, datastoreType, tx);
  75                             } else {
  76                                 /*
  77                                  * In case the Parent HA Global Node is not present and Child HA node is present
  78                                  * It means that both the child are disconnected/removed hence the parent is
  79                                  * deleted.
  80                                  * @see org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAOpNodeListener
  81                                  * OnGLobalNode() delete function
  82                                  * So we should delete the existing config child node as cleanup
  83                                  */
  84                                 HwvtepHAUtil.deleteNodeIfPresent(tx, dstPath);
  85                             }
  86                         }), LOG, "Failed to read source node {}", srcPath));
  87                 }
  88
  89                 @Override
  90                 public void onFailure(Throwable throwable) {
  91                 }
  92             }, MoreExecutors.directExecutor());
  93             return;
  94         }
  95         HwvtepGlobalAugmentation srcGlobalAugmentation =
  96                 srcGlobalNodeOptional.get().augmentation(HwvtepGlobalAugmentation.class);
  97         if (srcGlobalAugmentation == null) {
  98             /*
  99              * If Source HA Global Node is not present
 100              * It means that both the child are disconnected/removed hence the parent is deleted.
 101              * @see org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAOpNodeListener OnGLobalNode() delete function
 102              * So we should delete the existing config child node as cleanup
 103              */
 104             HwvtepHAUtil.deleteNodeIfPresent(tx, dstPath);
 105             return;
 106         }
 107         NodeBuilder haNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPath);
 108         HwvtepGlobalAugmentationBuilder haBuilder = new HwvtepGlobalAugmentationBuilder();
 109
 110         Optional<Node> existingDstGlobalNodeOptional = tx.read(dstPath).get();
 111         Node existingDstGlobalNode =
 112                 existingDstGlobalNodeOptional.isPresent() ? existingDstGlobalNodeOptional.get() : null;
 113         HwvtepGlobalAugmentation existingHAGlobalData = HwvtepHAUtil.getGlobalAugmentationOfNode(existingDstGlobalNode);
 114
 115
 116         if (Operational.class.equals(datastoreType)) {
 117             globalAugmentationMerger.mergeOperationalData(haBuilder, existingHAGlobalData, srcGlobalAugmentation,
 118                     dstPath);
 119             globalNodeMerger.mergeOperationalData(haNodeBuilder,
 120                     existingDstGlobalNode, srcGlobalNodeOptional.get(), dstPath);
 121             haBuilder.setManagers(HwvtepHAUtil.buildManagersForHANode(srcGlobalNodeOptional.get(),
 122                     existingDstGlobalNodeOptional));
 123             //Also update the manager section in config which helps in cluster reboot scenarios
 124             LoggingFutures.addErrorLogging(
 125                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 126                     confTx -> haBuilder.getManagers().values().forEach(manager -> {
 127                         InstanceIdentifier<Managers> managerIid =
 128                             dstPath.augmentation(HwvtepGlobalAugmentation.class).child(Managers.class, manager.key());
 129                         confTx.mergeParentStructurePut(managerIid, manager);
 130                     })), LOG, "Error updating the manager section in config");
 131
 132         } else {
 133             globalAugmentationMerger.mergeConfigData(haBuilder, srcGlobalAugmentation, dstPath);
 134             globalNodeMerger.mergeConfigData(haNodeBuilder, srcGlobalNodeOptional.get(), dstPath);
 135         }
 136
 137         haBuilder.setDbVersion(srcGlobalAugmentation.getDbVersion());
 138         haNodeBuilder.addAugmentation(HwvtepGlobalAugmentation.class, haBuilder.build());
 139         Node haNode = haNodeBuilder.build();
 140         if (Operational.class.equals(datastoreType)) {
 141             tx.mergeParentStructureMerge(dstPath, haNode);
 142         } else {
 143             tx.mergeParentStructurePut(dstPath, haNode);
 144         }
 145     }
 146
 147     public <D extends Datastore> void copyPSNode(Optional<Node> srcPsNodeOptional,
 148                            InstanceIdentifier<Node> srcPsPath,
 149                            InstanceIdentifier<Node> dstPsPath,
 150                            InstanceIdentifier<Node> dstGlobalPath,
 151                            Class<D> datastoreType,
 152                            TypedReadWriteTransaction<D> tx)
 153             throws ExecutionException, InterruptedException {
 154         if (!srcPsNodeOptional.isPresent() && Configuration.class.equals(datastoreType)) {
 155             Futures.addCallback(tx.read(srcPsPath), new FutureCallback<Optional<Node>>() {
 156                 @Override
 157                 public void onSuccess(Optional<Node> nodeOptional) {
 158                     HAJobScheduler.getInstance().submitJob(() -> {
 159                         LoggingFutures.addErrorLogging(
 160                             txRunner.callWithNewReadWriteTransactionAndSubmit(datastoreType, tx -> {
 161                                 if (nodeOptional.isPresent()) {
 162                                     copyPSNode(nodeOptional,
 163                                         srcPsPath, dstPsPath, dstGlobalPath, datastoreType, tx);
 164                                 } else {
 165                                     /*
 166                                      * Deleting node please refer @see #copyGlobalNode for explanation
 167                                      */
 168                                     HwvtepHAUtil.deleteNodeIfPresent(tx, dstPsPath);
 169                                 }
 170                             }), LOG, "Failed to read source node {}", srcPsPath);
 171                     });
 172                 }
 173
 174                 @Override
 175                 public void onFailure(Throwable throwable) {
 176                 }
 177             }, MoreExecutors.directExecutor());
 178             return;
 179         }
 180         NodeBuilder dstPsNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPsPath);
 181         PhysicalSwitchAugmentationBuilder dstPsAugmentationBuilder = new PhysicalSwitchAugmentationBuilder();
 182
 183         PhysicalSwitchAugmentation srcPsAugmenatation =
 184                 srcPsNodeOptional.get().augmentation(PhysicalSwitchAugmentation.class);
 185
 186         Node existingDstPsNode = tx.read(dstPsPath).get().orElse(null);
 187         PhysicalSwitchAugmentation existingDstPsAugmentation =
 188                 HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(existingDstPsNode);
 189         if (Operational.class.equals(datastoreType)) {
 190             psAugmentationMerger.mergeOperationalData(dstPsAugmentationBuilder, existingDstPsAugmentation,
 191                     srcPsAugmenatation, dstPsPath);
 192             psNodeMerger.mergeOperationalData(dstPsNodeBuilder, existingDstPsNode, srcPsNodeOptional.get(), dstPsPath);
 193         } else {
 194             psAugmentationMerger.mergeConfigData(dstPsAugmentationBuilder, srcPsAugmenatation, dstPsPath);
 195             psNodeMerger.mergeConfigData(dstPsNodeBuilder, srcPsNodeOptional.get(), dstPsPath);
 196         }
 197         mergeOpManagedByAttributes(srcPsAugmenatation, dstPsAugmentationBuilder, dstGlobalPath);
 198
 199         dstPsNodeBuilder.addAugmentation(PhysicalSwitchAugmentation.class, dstPsAugmentationBuilder.build());
 200         Node dstPsNode = dstPsNodeBuilder.build();
 201         tx.mergeParentStructureMerge(dstPsPath, dstPsNode);
 202         LOG.debug("Copied {} physical switch node from {} to {}", datastoreType, srcPsPath, dstPsPath);
 203     }
 204
 205     public void mergeOpManagedByAttributes(PhysicalSwitchAugmentation psAugmentation,
 206                                            PhysicalSwitchAugmentationBuilder builder,
 207                                            InstanceIdentifier<Node> haNodePath) {
 208         builder.setManagedBy(new HwvtepGlobalRef(haNodePath));
 209         if (psAugmentation != null) {
 210             builder.setHwvtepNodeName(psAugmentation.getHwvtepNodeName());
 211             builder.setHwvtepNodeDescription(psAugmentation.getHwvtepNodeDescription());
 212             builder.setTunnelIps(psAugmentation.getTunnelIps());
 213             if (psAugmentation.getHwvtepNodeName() != null) {
 214                 builder.setPhysicalSwitchUuid(HwvtepHAUtil.getUUid(psAugmentation.getHwvtepNodeName().getValue()));
 215             }
 216         }
 217     }
 218 }