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 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  19 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  20 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  21 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  22 import org.opendaylight.netvirt.elan.l2gw.ha.BatchedTransaction;
  23 import org.opendaylight.netvirt.elan.l2gw.ha.HwvtepHAUtil;
  24 import org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAJobScheduler;
  25 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalAugmentationMerger;
  26 import org.opendaylight.netvirt.elan.l2gw.ha.merge.GlobalNodeMerger;
  27 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSAugmentationMerger;
  28 import org.opendaylight.netvirt.elan.l2gw.ha.merge.PSNodeMerger;
  29 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  30 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentationBuilder;
  31 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalRef;
  32 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentation;
  33 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.PhysicalSwitchAugmentationBuilder;
  34 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.Managers;
  35 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  36 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.NodeBuilder;
  37 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  38 import org.slf4j.Logger;
  39 import org.slf4j.LoggerFactory;
  40
  41 @Singleton
  42 public class NodeCopier implements INodeCopier {
  43
  44     private static final Logger LOG = LoggerFactory.getLogger(NodeCopier.class);
  45
  46     private final GlobalAugmentationMerger globalAugmentationMerger = GlobalAugmentationMerger.getInstance();
  47     private final PSAugmentationMerger psAugmentationMerger = PSAugmentationMerger.getInstance();
  48     private final GlobalNodeMerger globalNodeMerger = GlobalNodeMerger.getInstance();
  49     private final PSNodeMerger psNodeMerger = PSNodeMerger.getInstance();
  50     private final DataBroker db;
  51
  52     @Inject
  53     public NodeCopier(DataBroker db) {
  54         this.db = db;
  55     }
  56
  57     @Override
  58     public void copyGlobalNode(Optional<Node> srcGlobalNodeOptional,
  59                                InstanceIdentifier<Node> srcPath,
  60                                InstanceIdentifier<Node> dstPath,
  61                                LogicalDatastoreType logicalDatastoreType,
  62                                ReadWriteTransaction tx) throws ReadFailedException {
  63         if (!srcGlobalNodeOptional.isPresent() && logicalDatastoreType == CONFIGURATION) {
  64             Futures.addCallback(tx.read(logicalDatastoreType, srcPath), new FutureCallback<Optional<Node>>() {
  65                 @Override
  66                 public void onSuccess(Optional<Node> nodeOptional) {
  67                     HAJobScheduler.getInstance().submitJob(() -> {
  68                         try {
  69                             ReadWriteTransaction tx1 = new BatchedTransaction();
  70                             if (nodeOptional.isPresent()) {
  71                                 copyGlobalNode(nodeOptional, srcPath, dstPath, logicalDatastoreType, tx1);
  72                             } else {
  73                                 /**
  74                                  * In case the Parent HA Global Node is not present and Child HA node is present
  75                                  * It means that both the child are disconnected/removed hence the parent is deleted.
  76                                  * @see org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAOpNodeListener
  77                                  * OnGLobalNode() delete function
  78                                  * So we should delete the existing config child node as cleanup
  79                                  */
  80                                 HwvtepHAUtil.deleteNodeIfPresent(tx1, logicalDatastoreType, dstPath);
  81                             }
  82                         } catch (ReadFailedException e) {
  83                             LOG.error("Failed to read source node {}",srcPath);
  84                         }
  85                     });
  86                 }
  87
  88                 @Override
  89                 public void onFailure(Throwable throwable) {
  90                 }
  91             });
  92             return;
  93         }
  94         HwvtepGlobalAugmentation srcGlobalAugmentation =
  95                 srcGlobalNodeOptional.get().augmentation(HwvtepGlobalAugmentation.class);
  96         if (srcGlobalAugmentation == null) {
  97             /**
  98              * If Source HA Global Node is not present
  99              * It means that both the child are disconnected/removed hence the parent is deleted.
 100              * @see org.opendaylight.netvirt.elan.l2gw.ha.listeners.HAOpNodeListener OnGLobalNode() delete function
 101              * So we should delete the existing config child node as cleanup
 102              */
 103             HwvtepHAUtil.deleteNodeIfPresent(tx, logicalDatastoreType, dstPath);
 104             return;
 105         }
 106         NodeBuilder haNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPath);
 107         HwvtepGlobalAugmentationBuilder haBuilder = new HwvtepGlobalAugmentationBuilder();
 108
 109         Optional<Node> existingDstGlobalNodeOptional = tx.read(logicalDatastoreType, dstPath).checkedGet();
 110         Node existingDstGlobalNode =
 111                 existingDstGlobalNodeOptional.isPresent() ? existingDstGlobalNodeOptional.get() : null;
 112         HwvtepGlobalAugmentation existingHAGlobalData = HwvtepHAUtil.getGlobalAugmentationOfNode(existingDstGlobalNode);
 113
 114         globalAugmentationMerger.mergeOperationalData(haBuilder, existingHAGlobalData, srcGlobalAugmentation, dstPath);
 115         globalNodeMerger.mergeOperationalData(haNodeBuilder,
 116                 existingDstGlobalNode, srcGlobalNodeOptional.get(), dstPath);
 117
 118
 119         if (OPERATIONAL == logicalDatastoreType) {
 120             haBuilder.setManagers(HwvtepHAUtil.buildManagersForHANode(srcGlobalNodeOptional.get(),
 121                     existingDstGlobalNodeOptional));
 122             //Also update the manager section in config which helps in cluster reboot scenarios
 123             haBuilder.getManagers().forEach((manager) -> {
 124                 InstanceIdentifier<Managers> managerIid = dstPath.augmentation(HwvtepGlobalAugmentation.class)
 125                         .child(Managers.class, manager.key());
 126                 tx.put(CONFIGURATION, managerIid, manager, true);
 127             });
 128
 129         }
 130         haBuilder.setDbVersion(srcGlobalAugmentation.getDbVersion());
 131         haNodeBuilder.addAugmentation(HwvtepGlobalAugmentation.class, haBuilder.build());
 132         Node haNode = haNodeBuilder.build();
 133         if (OPERATIONAL == logicalDatastoreType) {
 134             tx.merge(logicalDatastoreType, dstPath, haNode, true);
 135         } else {
 136             tx.put(logicalDatastoreType, dstPath, haNode, true);
 137         }
 138     }
 139
 140     @Override
 141     public void copyPSNode(Optional<Node> srcPsNodeOptional,
 142                            InstanceIdentifier<Node> srcPsPath,
 143                            InstanceIdentifier<Node> dstPsPath,
 144                            InstanceIdentifier<Node> dstGlobalPath,
 145                            LogicalDatastoreType logicalDatastoreType,
 146                            ReadWriteTransaction tx) throws ReadFailedException {
 147         if (!srcPsNodeOptional.isPresent() && logicalDatastoreType == CONFIGURATION) {
 148             Futures.addCallback(tx.read(logicalDatastoreType, srcPsPath), new FutureCallback<Optional<Node>>() {
 149                 @Override
 150                 public void onSuccess(Optional<Node> nodeOptional) {
 151                     HAJobScheduler.getInstance().submitJob(() -> {
 152                         try {
 153                             ReadWriteTransaction tx1 = new BatchedTransaction();
 154                             if (nodeOptional.isPresent()) {
 155                                 copyPSNode(nodeOptional,
 156                                         srcPsPath, dstPsPath, dstGlobalPath, logicalDatastoreType, tx1);
 157                             } else {
 158                                 /**
 159                                  * Deleting node please refer @see #copyGlobalNode for explanation
 160                                  */
 161                                 HwvtepHAUtil.deleteNodeIfPresent(tx1, logicalDatastoreType, dstPsPath);
 162                             }
 163                         } catch (ReadFailedException e) {
 164                             LOG.error("Failed to read src node {}", srcPsNodeOptional.get());
 165                         }
 166                     });
 167                 }
 168
 169                 @Override
 170                 public void onFailure(Throwable throwable) {
 171                 }
 172             });
 173             return;
 174         }
 175         NodeBuilder dstPsNodeBuilder = HwvtepHAUtil.getNodeBuilderForPath(dstPsPath);
 176         PhysicalSwitchAugmentationBuilder dstPsAugmentationBuilder = new PhysicalSwitchAugmentationBuilder();
 177
 178         PhysicalSwitchAugmentation srcPsAugmenatation =
 179                 srcPsNodeOptional.get().augmentation(PhysicalSwitchAugmentation.class);
 180
 181         Node existingDstPsNode = HwvtepHAUtil.readNode(tx, logicalDatastoreType, dstPsPath);
 182         PhysicalSwitchAugmentation existingDstPsAugmentation =
 183                 HwvtepHAUtil.getPhysicalSwitchAugmentationOfNode(existingDstPsNode);
 184         if (OPERATIONAL == logicalDatastoreType) {
 185             psAugmentationMerger.mergeOperationalData(dstPsAugmentationBuilder, existingDstPsAugmentation,
 186                     srcPsAugmenatation, dstPsPath);
 187             psNodeMerger.mergeOperationalData(dstPsNodeBuilder, existingDstPsNode, srcPsNodeOptional.get(), dstPsPath);
 188         } else {
 189             psAugmentationMerger.mergeConfigData(dstPsAugmentationBuilder, srcPsAugmenatation, dstPsPath);
 190             psNodeMerger.mergeConfigData(dstPsNodeBuilder, srcPsNodeOptional.get(), dstPsPath);
 191         }
 192         mergeOpManagedByAttributes(srcPsAugmenatation, dstPsAugmentationBuilder, dstGlobalPath);
 193
 194         dstPsNodeBuilder.addAugmentation(PhysicalSwitchAugmentation.class, dstPsAugmentationBuilder.build());
 195         Node dstPsNode = dstPsNodeBuilder.build();
 196         tx.merge(logicalDatastoreType, dstPsPath, dstPsNode, true);
 197         LOG.debug("Copied {} physical switch node from {} to {}", logicalDatastoreType, srcPsPath, dstPsPath);
 198     }
 199
 200     public void mergeOpManagedByAttributes(PhysicalSwitchAugmentation psAugmentation,
 201                                            PhysicalSwitchAugmentationBuilder builder,
 202                                            InstanceIdentifier<Node> haNodePath) {
 203         builder.setManagedBy(new HwvtepGlobalRef(haNodePath));
 204         if (psAugmentation != null) {
 205             builder.setHwvtepNodeName(psAugmentation.getHwvtepNodeName());
 206             builder.setHwvtepNodeDescription(psAugmentation.getHwvtepNodeDescription());
 207             builder.setTunnelIps(psAugmentation.getTunnelIps());
 208             if (psAugmentation.getHwvtepNodeName() != null) {
 209                 builder.setPhysicalSwitchUuid(HwvtepHAUtil.getUUid(psAugmentation.getHwvtepNodeName().getValue()));
 210             }
 211         }
 212     }
 213 }