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