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 import static org.opendaylight.mdsal.binding.api.WriteTransaction.CREATE_MISSING_PARENTS;
  12
  13 import com.google.common.util.concurrent.FutureCallback;
  14 import com.google.common.util.concurrent.Futures;
  15 import com.google.common.util.concurrent.MoreExecutors;
  16 import java.util.Optional;
  17 import java.util.concurrent.ExecutionException;
  18 import javax.inject.Inject;
  19 import javax.inject.Singleton;
  20 import org.opendaylight.genius.infra.Datastore;
  21 import org.opendaylight.genius.infra.Datastore.Configuration;
  22 import org.opendaylight.genius.infra.Datastore.Operational;
  23 import org.opendaylight.genius.infra.ManagedNewTransactionRunner;
  24 import org.opendaylight.genius.infra.ManagedNewTransactionRunnerImpl;
  25 import org.opendaylight.genius.infra.TypedReadWriteTransaction;
  26 import org.opendaylight.infrautils.utils.concurrent.LoggingFutures;
  27 import org.opendaylight.mdsal.binding.api.DataBroker;
  28 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  29 import org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAJobScheduler;
  30 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalAugmentationMerger;
  31 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalNodeMerger;
  32 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSAugmentationMerger;
  33 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSNodeMerger;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentationBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalRef;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentationBuilder;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.Managers;
  40 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  41 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  42 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  43 import org.slf4j.Logger;
  44 import org.slf4j.LoggerFactory;
  45
  46 @Singleton
  47 public class NodeCopier {
  48
  49     private static final Logger LOG = LoggerFactory.getLogger(NodeCopier.class);
  50
  51     private final GlobalAugmentationMerger globalAugmentationMerger = GlobalAugmentationMerger.getInstance();
  52     private final PSAugmentationMerger psAugmentationMerger = PSAugmentationMerger.getInstance();
  53     private final GlobalNodeMerger globalNodeMerger = GlobalNodeMerger.getInstance();
  54     private final PSNodeMerger psNodeMerger = PSNodeMerger.getInstance();
  55     private final ManagedNewTransactionRunner txRunner;
  56
  57     @Inject
  58     public NodeCopier(DataBroker db) {
  59         this.txRunner = new ManagedNewTransactionRunnerImpl(db);
  60     }
  61
  62     public <D extends Datastore> void copyGlobalNode(Optional<Node> srcGlobalNodeOptional,
  63                                InstanceIdentifier<Node> srcPath,
  64                                InstanceIdentifier<Node> dstPath,
  65                                Class<D> datastoreType,
  66                                TypedReadWriteTransaction<D> tx)
  67             throws ExecutionException, InterruptedException {
  68         if (!srcGlobalNodeOptional.isPresent() && Configuration.class.equals(datastoreType)) {
  69             Futures.addCallback(tx.read(srcPath), new FutureCallback<Optional<Node>>() {
  70                 @Override
  71                 public void onSuccess(Optional<Node> nodeOptional) {
  72                     HAJobScheduler.getInstance().submitJob(() -> LoggingFutures.addErrorLogging(
  73                         txRunner.callWithNewReadWriteTransactionAndSubmit(datastoreType, tx -> {
  74                             if (nodeOptional.isPresent()) {
  75                                 copyGlobalNode(nodeOptional, srcPath, dstPath, datastoreType, tx);
  76                             } else {
  77                                 /*
  78                                  * In case the Parent HA Global Node is not present and Child HA node is present
  79                                  * It means that both the child are disconnected/removed hence the parent is
  80                                  * deleted.
  81                                  * @see org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAOpNodeListener
  82                                  * OnGLobalNode() delete function
  83                                  * So we should delete the existing config child node as cleanup
  84                                  */
  85                                 HwvtepHAUtil.deleteNodeIfPresent(tx, dstPath);
  86                             }
  87                         }), LOG, "Failed to read source node {}", srcPath));
  88                 }
  89
  90                 @Override
  91                 public void onFailure(Throwable throwable) {
  92                 }
  93             }, MoreExecutors.directExecutor());
  94             return;
  95         }
  96         HwvtepGlobalAugmentation srcGlobalAugmentation =
  97                 srcGlobalNodeOptional.get().augmentation(HwvtepGlobalAugmentation.class);
  98         if (srcGlobalAugmentation == null) {
  99             /*
 100              * If Source HA Global Node is not present
 101              * It means that both the child are disconnected/removed hence the parent is deleted.
 102              * @see org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAOpNodeListener OnGLobalNode() delete function
 103              * So we should delete the existing config child node as cleanup
 104              */
 105             HwvtepHAUtil.deleteNodeIfPresent(tx, dstPath);
 106             return;
 107         }
 108         NodeBuilder haNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPath);
 109         HwvtepGlobalAugmentationBuilder haBuilder = new HwvtepGlobalAugmentationBuilder();
 110
 111         Optional<Node> existingDstGlobalNodeOptional = tx.read(dstPath).get();
 112         Node existingDstGlobalNode =
 113                 existingDstGlobalNodeOptional.isPresent() ? existingDstGlobalNodeOptional.get() : null;
 114         HwvtepGlobalAugmentation existingHAGlobalData = HwvtepHAUtil.getGlobalAugmentationOfNode(existingDstGlobalNode);
 115
 116
 117         if (Operational.class.equals(datastoreType)) {
 118             globalAugmentationMerger.mergeOperationalData(haBuilder, existingHAGlobalData, srcGlobalAugmentation,
 119                     dstPath);
 120             globalNodeMerger.mergeOperationalData(haNodeBuilder,
 121                     existingDstGlobalNode, srcGlobalNodeOptional.get(), dstPath);
 122             haBuilder.setManagers(HwvtepHAUtil.buildManagersForHANode(srcGlobalNodeOptional.get(),
 123                     existingDstGlobalNodeOptional));
 124             //Also update the manager section in config which helps in cluster reboot scenarios
 125             LoggingFutures.addErrorLogging(
 126                 txRunner.callWithNewWriteOnlyTransactionAndSubmit(CONFIGURATION,
 127                     confTx -> haBuilder.getManagers().forEach(manager -> {
 128                         InstanceIdentifier<Managers> managerIid =
 129                             dstPath.augmentation(HwvtepGlobalAugmentation.class).child(Managers.class, manager.key());
 130                         confTx.put(managerIid, manager, CREATE_MISSING_PARENTS);
 131                     })), LOG, "Error updating the manager section in config");
 132
 133         } else {
 134             globalAugmentationMerger.mergeConfigData(haBuilder, srcGlobalAugmentation, dstPath);
 135             globalNodeMerger.mergeConfigData(haNodeBuilder, srcGlobalNodeOptional.get(), dstPath);
 136         }
 137
 138         haBuilder.setDbVersion(srcGlobalAugmentation.getDbVersion());
 139         haNodeBuilder.addAugmentation(HwvtepGlobalAugmentation.class, haBuilder.build());
 140         Node haNode = haNodeBuilder.build();
 141         if (Operational.class.equals(datastoreType)) {
 142             tx.merge(dstPath, haNode, CREATE_MISSING_PARENTS);
 143         } else {
 144             tx.put(dstPath, haNode, CREATE_MISSING_PARENTS);
 145         }
 146     }
 147
 148     public <D extends Datastore> void copyPSNode(Optional<Node> srcPsNodeOptional,
 149                            InstanceIdentifier<Node> srcPsPath,
 150                            InstanceIdentifier<Node> dstPsPath,
 151                            InstanceIdentifier<Node> dstGlobalPath,
 152                            Class<D> datastoreType,
 153                            TypedReadWriteTransaction<D> tx)
 154             throws ExecutionException, InterruptedException {
 155         if (!srcPsNodeOptional.isPresent() && Configuration.class.equals(datastoreType)) {
 156             Futures.addCallback(tx.read(srcPsPath), new FutureCallback<Optional<Node>>() {
 157                 @Override
 158                 public void onSuccess(Optional<Node> nodeOptional) {
 159                     HAJobScheduler.getInstance().submitJob(() -> {
 160                         LoggingFutures.addErrorLogging(
 161                             txRunner.callWithNewReadWriteTransactionAndSubmit(datastoreType, tx -> {
 162                                 if (nodeOptional.isPresent()) {
 163                                     copyPSNode(nodeOptional,
 164                                         srcPsPath, dstPsPath, dstGlobalPath, datastoreType, tx);
 165                                 } else {
 166                                     /*
 167                                      * Deleting node please refer @see #copyGlobalNode for explanation
 168                                      */
 169                                     HwvtepHAUtil.deleteNodeIfPresent(tx, dstPsPath);
 170                                 }
 171                             }), LOG, "Failed to read source node {}", srcPsPath);
 172                     });
 173                 }
 174
 175                 @Override
 176                 public void onFailure(Throwable throwable) {
 177                 }
 178             }, MoreExecutors.directExecutor());
 179             return;
 180         }
 181         NodeBuilder dstPsNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPsPath);
 182         PhysicalSwitchAugmentationBuilder dstPsAugmentationBuilder = new PhysicalSwitchAugmentationBuilder();
 183
 184         PhysicalSwitchAugmentation srcPsAugmenatation =
 185                 srcPsNodeOptional.get().augmentation(PhysicalSwitchAugmentation.class);
 186
 187         Node existingDstPsNode = tx.read(dstPsPath).get().orElse(null);
 188         PhysicalSwitchAugmentation existingDstPsAugmentation =
 189                 HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(existingDstPsNode);
 190         if (Operational.class.equals(datastoreType)) {
 191             psAugmentationMerger.mergeOperationalData(dstPsAugmentationBuilder, existingDstPsAugmentation,
 192                     srcPsAugmenatation, dstPsPath);
 193             psNodeMerger.mergeOperationalData(dstPsNodeBuilder, existingDstPsNode, srcPsNodeOptional.get(), dstPsPath);
 194         } else {
 195             psAugmentationMerger.mergeConfigData(dstPsAugmentationBuilder, srcPsAugmenatation, dstPsPath);
 196             psNodeMerger.mergeConfigData(dstPsNodeBuilder, srcPsNodeOptional.get(), dstPsPath);
 197         }
 198         mergeOpManagedByAttributes(srcPsAugmenatation, dstPsAugmentationBuilder, dstGlobalPath);
 199
 200         dstPsNodeBuilder.addAugmentation(PhysicalSwitchAugmentation.class, dstPsAugmentationBuilder.build());
 201         Node dstPsNode = dstPsNodeBuilder.build();
 202         tx.merge(dstPsPath, dstPsNode, CREATE_MISSING_PARENTS);
 203         LOG.debug("Copied {} physical switch node from {} to {}", datastoreType, srcPsPath, dstPsPath);
 204     }
 205
 206     public void mergeOpManagedByAttributes(PhysicalSwitchAugmentation psAugmentation,
 207                                            PhysicalSwitchAugmentationBuilder builder,
 208                                            InstanceIdentifier<Node> haNodePath) {
 209         builder.setManagedBy(new HwvtepGlobalRef(haNodePath));
 210         if (psAugmentation != null) {
 211             builder.setHwvtepNodeName(psAugmentation.getHwvtepNodeName());
 212             builder.setHwvtepNodeDescription(psAugmentation.getHwvtepNodeDescription());
 213             builder.setTunnelIps(psAugmentation.getTunnelIps());
 214             if (psAugmentation.getHwvtepNodeName() != null) {
 215                 builder.setPhysicalSwitchUuid(HwvtepHAUtil.getUUid(psAugmentation.getHwvtepNodeName().getValue()));
 216             }
 217         }
 218     }
 219 }