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.common.api.data.LogicalDatastoreType.CONFIGURATION;
  11 import static org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType.OPERATIONAL;
  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 javax.inject.Inject;
  17 import javax.inject.Singleton;
  18
  19 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  20 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  21 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  22 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  23 import org.opendaylight.genius.utils.hwvtep.HwvtepHACache;
  24 import org.opendaylight.netvirt.elan.l2gw.ha.BatchedTransaction;
  25 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  26 import org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAJobScheduler;
  27 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalAugmentationMerger;
  28 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalNodeMerger;
  29 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSAugmentationMerger;
  30 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSNodeMerger;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentationBuilder;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalRef;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentationBuilder;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.Managers;
  37 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  38 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  39 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  40 import org.slf4j.Logger;
  41 import org.slf4j.LoggerFactory;
  42
  43 @Singleton
  44 public class NodeCopier implements INodeCopier {
  45
  46     static Logger LOG = LoggerFactory.getLogger(NodeCopier.class);
  47
  48     GlobalAugmentationMerger globalAugmentationMerger = GlobalAugmentationMerger.getInstance();
  49     PSAugmentationMerger psAugmentationMerger = PSAugmentationMerger.getInstance();
  50     GlobalNodeMerger globalNodeMerger = GlobalNodeMerger.getInstance();
  51     PSNodeMerger psNodeMerger = PSNodeMerger.getInstance();
  52     DataBroker db;
  53     HwvtepHACache hwvtepHACache = HwvtepHACache.getInstance();
  54
  55     @Inject
  56     public NodeCopier(DataBroker db) {
  57         this.db = db;
  58     }
  59
  60     public void copyGlobalNode(Optional<Node> srcGlobalNodeOptional,
  61                         InstanceIdentifier<Node> srcPath,
  62                         InstanceIdentifier<Node> dstPath,
  63                         LogicalDatastoreType logicalDatastoreType,
  64                         ReadWriteTransaction tx) throws ReadFailedException {
  65         if (!srcGlobalNodeOptional.isPresent() && logicalDatastoreType == CONFIGURATION) {
  66             Futures.addCallback(tx.read(logicalDatastoreType, srcPath), new FutureCallback<Optional<Node>>() {
  67                 @Override
  68                 public void onSuccess(Optional<Node> nodeOptional) {
  69                     HAJobScheduler.getInstance().submitJob(() -> {
  70                         try {
  71                             ReadWriteTransaction tx1 = new BatchedTransaction();
  72                             if (nodeOptional.isPresent()) {
  73                                 copyGlobalNode(nodeOptional, srcPath, dstPath, logicalDatastoreType, tx1);
  74                             } else {
  75                                 /**
  76                                  * In case the Parent HA Global Node is not present and Child HA node is present
  77                                  * It means that both the child are disconnected/removed hence the parent is deleted.
  78                                  * @see org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAOpNodeListener
  79                                  * OnGLobalNode() delete function
  80                                  * So we should delete the existing config child node as cleanup
  81                                  */
  82                                 HwvtepHAUtil.deleteNodeIfPresent(tx1, logicalDatastoreType, dstPath);
  83                             }
  84                         } catch (ReadFailedException e) {
  85                             LOG.error("Failed to read source node {}",srcPath);
  86                         }
  87                     });
  88                 }
  89
  90                 @Override
  91                 public void onFailure(Throwable throwable) {
  92                 }
  93             });
  94             return;
  95         }
  96         HwvtepGlobalAugmentation srcGlobalAugmentation =
  97                 srcGlobalNodeOptional.get().getAugmentation(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, logicalDatastoreType, dstPath);
 106             return;
 107         }
 108         NodeBuilder haNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPath);
 109         HwvtepGlobalAugmentationBuilder haBuilder = new HwvtepGlobalAugmentationBuilder();
 110
 111         Optional<Node> existingDstGlobalNodeOptional = tx.read(logicalDatastoreType, dstPath).checkedGet();
 112         Node existingDstGlobalNode =
 113                 existingDstGlobalNodeOptional.isPresent() ? existingDstGlobalNodeOptional.get() : null;
 114         HwvtepGlobalAugmentation existingHAGlobalData = HwvtepHAUtil.getGlobalAugmentationOfNode(existingDstGlobalNode);
 115
 116         globalAugmentationMerger.mergeOperationalData(haBuilder, existingHAGlobalData, srcGlobalAugmentation, dstPath);
 117         globalNodeMerger.mergeOperationalData(haNodeBuilder,
 118                 existingDstGlobalNode, srcGlobalNodeOptional.get(), dstPath);
 119
 120
 121         if (OPERATIONAL == logicalDatastoreType) {
 122             haBuilder.setManagers(HwvtepHAUtil.buildManagersForHANode(srcGlobalNodeOptional.get(),
 123                     existingDstGlobalNodeOptional));
 124             //Also update the manager section in config which helps in cluster reboot scenarios
 125             haBuilder.getManagers().stream().forEach((manager) -> {
 126                 InstanceIdentifier<Managers> managerIid = dstPath.augmentation(HwvtepGlobalAugmentation.class)
 127                         .child(Managers.class, manager.getKey());
 128                 tx.put(CONFIGURATION, managerIid, manager, true);
 129             });
 130
 131         }
 132         haBuilder.setDbVersion(srcGlobalAugmentation.getDbVersion());
 133         haNodeBuilder.addAugmentation(HwvtepGlobalAugmentation.class, haBuilder.build());
 134         Node haNode = haNodeBuilder.build();
 135         if (OPERATIONAL == logicalDatastoreType) {
 136             tx.merge(logicalDatastoreType, dstPath, haNode, true);
 137         } else {
 138             tx.put(logicalDatastoreType, dstPath, haNode, true);
 139         }
 140     }
 141
 142     public void copyPSNode(Optional<Node> srcPsNodeOptional,
 143                            InstanceIdentifier<Node> srcPsPath,
 144                            InstanceIdentifier<Node> dstPsPath,
 145                            InstanceIdentifier<Node> dstGlobalPath,
 146                            LogicalDatastoreType logicalDatastoreType,
 147                            ReadWriteTransaction tx) throws ReadFailedException {
 148         if (!srcPsNodeOptional.isPresent() && logicalDatastoreType == CONFIGURATION) {
 149             Futures.addCallback(tx.read(logicalDatastoreType, srcPsPath), new FutureCallback<Optional<Node>>() {
 150                 @Override
 151                 public void onSuccess(Optional<Node> nodeOptional) {
 152                     HAJobScheduler.getInstance().submitJob(() -> {
 153                         try {
 154                             ReadWriteTransaction tx1 = new BatchedTransaction();
 155                             if (nodeOptional.isPresent()) {
 156                                 copyPSNode(nodeOptional,
 157                                         srcPsPath, dstPsPath, dstGlobalPath, logicalDatastoreType, tx1);
 158                             } else {
 159                                 /**
 160                                  * Deleting node please refer @see #copyGlobalNode for explanation
 161                                  */
 162                                 HwvtepHAUtil.deleteNodeIfPresent(tx1, logicalDatastoreType, dstPsPath);
 163                             }
 164                         } catch (ReadFailedException e) {
 165                             LOG.error("Failed to read src node {}", srcPsNodeOptional.get());
 166                         }
 167                     });
 168                 }
 169
 170                 @Override
 171                 public void onFailure(Throwable throwable) {
 172                 }
 173             });
 174             return;
 175         }
 176         NodeBuilder dstPsNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPsPath);
 177         PhysicalSwitchAugmentationBuilder dstPsAugmentationBuilder = new PhysicalSwitchAugmentationBuilder();
 178
 179         PhysicalSwitchAugmentation srcPsAugmenatation =
 180                 srcPsNodeOptional.get().getAugmentation(PhysicalSwitchAugmentation.class);
 181
 182         Node existingDstPsNode = HwvtepHAUtil.readNode(tx, logicalDatastoreType, dstPsPath);
 183         PhysicalSwitchAugmentation existingDstPsAugmentation =
 184                 HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(existingDstPsNode);
 185         if (OPERATIONAL == logicalDatastoreType) {
 186             psAugmentationMerger.mergeOperationalData(dstPsAugmentationBuilder, existingDstPsAugmentation,
 187                     srcPsAugmenatation, dstPsPath);
 188             psNodeMerger.mergeOperationalData(dstPsNodeBuilder, existingDstPsNode, srcPsNodeOptional.get(), dstPsPath);
 189         } else {
 190             psAugmentationMerger.mergeConfigData(dstPsAugmentationBuilder, srcPsAugmenatation, dstPsPath);
 191             psNodeMerger.mergeConfigData(dstPsNodeBuilder, srcPsNodeOptional.get(), dstPsPath);
 192         }
 193         mergeOpManagedByAttributes(srcPsAugmenatation, dstPsAugmentationBuilder, dstGlobalPath);
 194
 195         dstPsNodeBuilder.addAugmentation(PhysicalSwitchAugmentation.class, dstPsAugmentationBuilder.build());
 196         Node dstPsNode = dstPsNodeBuilder.build();
 197         tx.merge(logicalDatastoreType, dstPsPath, dstPsNode, true);
 198         LOG.debug("Copied {} physical switch node from {} to {}", logicalDatastoreType, srcPsPath, dstPsPath);
 199     }
 200
 201     public void mergeOpManagedByAttributes(PhysicalSwitchAugmentation psAugmentation,
 202                                            PhysicalSwitchAugmentationBuilder builder,
 203                                            InstanceIdentifier<Node> haNodePath) {
 204         builder.setManagedBy(new HwvtepGlobalRef(haNodePath));
 205         if (psAugmentation != null) {
 206             builder.setHwvtepNodeName(psAugmentation.getHwvtepNodeName());
 207             builder.setHwvtepNodeDescription(psAugmentation.getHwvtepNodeDescription());
 208             builder.setTunnelIps(psAugmentation.getTunnelIps());
 209             if (psAugmentation.getHwvtepNodeName() != null) {
 210                 builder.setPhysicalSwitchUuid(HwvtepHAUtil.getUUid(psAugmentation.getHwvtepNodeName().getValue()));
 211             }
 212         }
 213     }
 214 }