elanmanager/impl/src/main/java/org/opendaylight/netvirt/elan/l2gw/ha/merge/MergeCommandsAggregator.java

   1 /*
   2  * Copyright (c) 2016 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.merge;
   9
  10 import static org.opendaylight.genius.infra.Datastore.CONFIGURATION;
  11 import static org.opendaylight.genius.infra.Datastore.OPERATIONAL;
  12 import static org.opendaylight.mdsal.binding.api.WriteTransaction.CREATE_MISSING_PARENTS;
  13
  14 import java.util.Collection;
  15 import java.util.HashMap;
  16 import java.util.Map;
  17 import java.util.Objects;
  18 import java.util.Optional;
  19 import java.util.concurrent.ExecutionException;
  20 import java.util.function.BiPredicate;
  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.TypedReadWriteTransaction;
  25 import org.opendaylight.genius.utils.SuperTypeUtil;
  26 import org.opendaylight.mdsal.binding.api.DataObjectModification;
  27 import org.opendaylight.netvirt.elan.l2gw.ha.commands.LocalMcastCmd;
  28 import org.opendaylight.netvirt.elan.l2gw.ha.commands.LocalUcastCmd;
  29 import org.opendaylight.netvirt.elan.l2gw.ha.commands.MergeCommand;
  30 import org.opendaylight.netvirt.elan.l2gw.ha.commands.PhysicalLocatorCmd;
  31 import org.opendaylight.netvirt.elan.l2gw.ha.commands.RemoteMcastCmd;
  32 import org.opendaylight.netvirt.elan.l2gw.ha.commands.RemoteUcastCmd;
  33 import org.opendaylight.netvirt.elan.l2gw.ha.commands.TerminationPointCmd;
  34 import org.opendaylight.netvirt.elan.l2gw.ha.commands.TunnelCmd;
  35 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalMcastMacs;
  36 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalUcastMacs;
  37 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.RemoteMcastMacs;
  38 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.RemoteUcastMacs;
  39 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.physical._switch.attributes.Tunnels;
  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.node.TerminationPoint;
  42 import org.opendaylight.yangtools.concepts.Builder;
  43 import org.opendaylight.yangtools.yang.binding.DataObject;
  44 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  45 import org.slf4j.Logger;
  46 import org.slf4j.LoggerFactory;
  47
  48 public abstract class MergeCommandsAggregator<BuilderTypeT extends Builder, AugTypeT extends DataObject> {
  49
  50     private static final Logger LOG = LoggerFactory.getLogger(MergeCommandsAggregator.class);
  51
  52     protected Map<Class<?>, MergeCommand> commands = new HashMap<>();
  53
  54     private final Map<Class, Boolean> operSkipCommands = new HashMap<>();
  55     private final Map<Class, Boolean> configSkipCommands = new HashMap<>();
  56
  57     private final BiPredicate<Class<? extends Datastore>, Class> skipCopy =
  58         (dsType, cmdType) -> (Configuration.class.equals(dsType) ? configSkipCommands.containsKey(cmdType)
  59                 : operSkipCommands.containsKey(cmdType));
  60
  61     protected MergeCommandsAggregator() {
  62         operSkipCommands.put(RemoteUcastCmd.class, Boolean.TRUE);
  63         operSkipCommands.put(RemoteMcastCmd.class, Boolean.TRUE);
  64         operSkipCommands.put(TerminationPointCmd.class, Boolean.TRUE);
  65         operSkipCommands.put(LocalMcastCmd.class, Boolean.TRUE);
  66         operSkipCommands.put(PhysicalLocatorCmd.class, Boolean.TRUE);
  67         operSkipCommands.put(TunnelCmd.class, Boolean.TRUE);
  68
  69         operSkipCommands.put(RemoteMcastMacs.class, Boolean.TRUE);
  70         operSkipCommands.put(RemoteUcastMacs.class, Boolean.TRUE);
  71         operSkipCommands.put(LocalMcastMacs.class, Boolean.TRUE);
  72         operSkipCommands.put(TerminationPoint.class, Boolean.TRUE);
  73         operSkipCommands.put(Tunnels.class, Boolean.TRUE);
  74
  75         configSkipCommands.put(LocalUcastCmd.class, Boolean.TRUE);
  76         configSkipCommands.put(LocalUcastMacs.class, Boolean.TRUE);
  77     }
  78
  79     protected void addCommand(MergeCommand mergeCommand) {
  80         commands.put(SuperTypeUtil.getTypeParameter(mergeCommand.getClass(), 0), mergeCommand);
  81     }
  82
  83     public void mergeOperationalData(BuilderTypeT builder,
  84                                      AugTypeT existingData,
  85                                      AugTypeT src,
  86                                      InstanceIdentifier<Node> dstPath) {
  87         for (MergeCommand cmd : commands.values()) {
  88             if (skipCopy.negate().test(OPERATIONAL, cmd.getClass())) {
  89                 cmd.mergeOperationalData(builder, existingData, src, dstPath);
  90             }
  91         }
  92     }
  93
  94     public void mergeConfigData(BuilderTypeT builder,
  95                                 AugTypeT src,
  96                                 InstanceIdentifier<Node> dstPath) {
  97         for (MergeCommand cmd : commands.values()) {
  98             if (skipCopy.negate().test(CONFIGURATION, cmd.getClass())) {
  99                 cmd.mergeConfigData(builder, src, dstPath);
 100             }
 101         }
 102     }
 103
 104
 105     public void mergeConfigUpdate(InstanceIdentifier<Node> dstPath,
 106                                   DataObjectModification mod,
 107                                   TypedReadWriteTransaction<Configuration> tx) {
 108         mergeUpdate(dstPath, mod, CONFIGURATION, tx);
 109     }
 110
 111     public void mergeOpUpdate(InstanceIdentifier<Node> dstPath,
 112                               DataObjectModification mod,
 113                               TypedReadWriteTransaction<Operational> tx) {
 114         mergeUpdate(dstPath, mod, OPERATIONAL, tx);
 115     }
 116
 117     public <D extends Datastore> void mergeUpdate(InstanceIdentifier<Node> dstPath,
 118                             DataObjectModification mod,
 119                             Class<D> datastoreType,
 120                             TypedReadWriteTransaction<D> tx) {
 121         if (mod == null) {
 122             return;
 123         }
 124         Collection<DataObjectModification> modifications = mod.getModifiedChildren();
 125         modifications.stream()
 126             .filter(modification -> skipCopy.negate().test(datastoreType, modification.getDataType()))
 127             .filter(modification -> commands.get(modification.getDataType()) != null)
 128             .peek(modification -> LOG.debug("Received {} modification {} copy/delete to {}",
 129                     datastoreType, modification, dstPath))
 130             .forEach(modification -> {
 131                 MergeCommand mergeCommand = commands.get(modification.getDataType());
 132                 DataObject dataAfter = modification.getDataAfter();
 133                 boolean create = dataAfter != null;
 134                 DataObject data = create ? dataAfter : modification.getDataBefore();
 135                 InstanceIdentifier<DataObject> transformedId = mergeCommand.generateId(dstPath, data);
 136                 DataObject transformedItem = mergeCommand.transform(dstPath, data);
 137
 138                 Optional<DataObject> existingDataOptional = null;
 139                 try {
 140                     existingDataOptional = tx.read(transformedId).get();
 141                 } catch (InterruptedException | ExecutionException ex) {
 142                     LOG.error("Failed to read data {} from {}", transformedId, datastoreType);
 143                     return;
 144                 }
 145
 146                 String destination = Configuration.class.equals(datastoreType) ? "child" : "parent";
 147                 if (create) {
 148                     if (isDataUpdated(existingDataOptional, transformedItem)) {
 149                         LOG.debug("Copy to {} {} {}", destination, datastoreType, transformedId);
 150                         tx.put(transformedId, transformedItem, CREATE_MISSING_PARENTS);
 151                     } else {
 152                         LOG.debug("Data not updated skip copy to {}", transformedId);
 153                     }
 154                 } else {
 155                     if (existingDataOptional.isPresent()) {
 156                         LOG.debug("Delete from {} {} {}", destination, datastoreType, transformedId);
 157                         tx.delete(transformedId);
 158                     } else {
 159                         LOG.debug("Delete skipped for {}", transformedId);
 160                     }
 161                 }
 162             });
 163     }
 164
 165     boolean isDataUpdated(Optional<DataObject> existingDataOptional, DataObject newData) {
 166         return !existingDataOptional.isPresent() || !Objects.equals(existingDataOptional.get(), newData);
 167     }
 168 }