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