hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/transact/UcastMacsRemoteRemoveCommand.java

   1 /*
   2  * Copyright (c) 2015, 2016 China Telecom Beijing Research Institute 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
   9 package org.opendaylight.ovsdb.hwvtepsouthbound.transact;
  10
  11 import static org.opendaylight.ovsdb.lib.operations.Operations.op;
  12
  13 import java.util.ArrayList;
  14 import java.util.Collection;
  15 import java.util.HashMap;
  16 import java.util.List;
  17 import java.util.Map;
  18 import java.util.Map.Entry;
  19
  20 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
  21 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  22 import org.opendaylight.ovsdb.lib.notation.UUID;
  23 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  24 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  25 import org.opendaylight.ovsdb.schema.hardwarevtep.UcastMacsRemote;
  26 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.RemoteUcastMacs;
  28 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  29 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  30 import org.slf4j.Logger;
  31 import org.slf4j.LoggerFactory;
  32
  33 import com.google.common.base.Optional;
  34
  35 public class UcastMacsRemoteRemoveCommand extends AbstractTransactCommand {
  36     private static final Logger LOG = LoggerFactory.getLogger(UcastMacsRemoteRemoveCommand.class);
  37
  38     public UcastMacsRemoteRemoveCommand(HwvtepOperationalState state,
  39             Collection<DataTreeModification<Node>> changes) {
  40         super(state, changes);
  41     }
  42
  43     @Override
  44     public void execute(TransactionBuilder transaction) {
  45         Map<InstanceIdentifier<Node>, List<RemoteUcastMacs>> removeds =
  46                 extractRemoved(getChanges(),RemoteUcastMacs.class);
  47         if (!removeds.isEmpty()) {
  48             for (Entry<InstanceIdentifier<Node>, List<RemoteUcastMacs>> removed:
  49                 removeds.entrySet()) {
  50                 removeUcastMacRemote(transaction,  removed.getKey(), removed.getValue());
  51             }
  52         }
  53     }
  54
  55     private void removeUcastMacRemote(TransactionBuilder transaction,
  56             InstanceIdentifier<Node> instanceIdentifier, List<RemoteUcastMacs> macList) {
  57         for (RemoteUcastMacs mac: macList) {
  58             LOG.debug("Removing remoteUcastMacs, mac address: {}", mac.getMacEntryKey().getValue());
  59             Optional<RemoteUcastMacs> operationalMacOptional =
  60                     getOperationalState().getRemoteUcastMacs(instanceIdentifier, mac.getKey());
  61             UcastMacsRemote ucastMacsRemote = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
  62                     UcastMacsRemote.class, null);
  63             if (operationalMacOptional.isPresent() && operationalMacOptional.get().getMacEntryUuid() != null) {
  64                 //when mac entry is deleted, its referenced locators are deleted automatically.
  65                 //locators in config DS is not deleted and need to be removed explicitly by user.
  66                 UUID macEntryUUID = new UUID(operationalMacOptional.get().getMacEntryUuid().getValue());
  67                 transaction.add(op.delete(ucastMacsRemote.getSchema()).
  68                         where(ucastMacsRemote.getUuidColumn().getSchema().opEqual(macEntryUUID)).build());
  69                 transaction.add(op.comment("UcastMacRemote: Deleting " + mac.getMacEntryKey().getValue()));
  70             } else {
  71                 LOG.warn("Unable to delete remoteUcastMacs {} because it was not found in the operational store",
  72                         mac.getMacEntryKey().getValue());
  73             }
  74         }
  75     }
  76
  77     private Map<InstanceIdentifier<Node>, List<RemoteUcastMacs>> extractRemoved(
  78             Collection<DataTreeModification<Node>> changes, Class<RemoteUcastMacs> class1) {
  79         Map<InstanceIdentifier<Node>, List<RemoteUcastMacs>> result
  80             = new HashMap<InstanceIdentifier<Node>, List<RemoteUcastMacs>>();
  81         if (changes != null && !changes.isEmpty()) {
  82             for (DataTreeModification<Node> change : changes) {
  83                 final InstanceIdentifier<Node> key = change.getRootPath().getRootIdentifier();
  84                 final DataObjectModification<Node> mod = change.getRootNode();
  85                 //If the node which remoteUcastMacs belong to is removed, all remoteUcastMacs should be removed too.
  86                 Node removed = TransactUtils.getRemoved(mod);
  87                 if (removed != null) {
  88                     List<RemoteUcastMacs> macListRemoved = null;
  89                     if (removed.getAugmentation(HwvtepGlobalAugmentation.class) != null) {
  90                         macListRemoved = removed.getAugmentation(HwvtepGlobalAugmentation.class).getRemoteUcastMacs();
  91                     }
  92                     if (macListRemoved != null) {
  93                         result.put(key, macListRemoved);
  94                     }
  95                 }
  96                 //If the node which remoteUcastMacs belong to is updated, and remoteUcastMacs may
  97                 //be created or updated or deleted, we need to get deleted ones.
  98                 Node updated = TransactUtils.getUpdated(mod);
  99                 Node before = mod.getDataBefore();
 100                 if (updated != null && before != null) {
 101                     List<RemoteUcastMacs> macListUpdated = null;
 102                     List<RemoteUcastMacs> macListBefore = null;
 103                     HwvtepGlobalAugmentation hgUpdated = updated.getAugmentation(HwvtepGlobalAugmentation.class);
 104                     if (hgUpdated != null) {
 105                         macListUpdated = hgUpdated.getRemoteUcastMacs();
 106                     }
 107                     HwvtepGlobalAugmentation hgBefore = before.getAugmentation(HwvtepGlobalAugmentation.class);
 108                     if (hgBefore != null) {
 109                         macListBefore = hgBefore.getRemoteUcastMacs();
 110                     }
 111                     if (macListBefore != null) {
 112                         List<RemoteUcastMacs> macListRemoved = new ArrayList<RemoteUcastMacs>();
 113                         if (macListUpdated != null) {
 114                             macListBefore.removeAll(macListUpdated);
 115                         }
 116                         //then exclude updated remoteUcastMacs
 117                         for (RemoteUcastMacs macBefore: macListBefore) {
 118                             int i = 0;
 119                             for(; i < macListUpdated.size(); i++) {
 120                                 if (macBefore.getMacEntryKey().equals(macListUpdated.get(i).getMacEntryKey())) {
 121                                     break;
 122                                 }
 123                             }
 124                             if (i == macListUpdated.size()) {
 125                                 macListRemoved.add(macBefore);
 126                             }
 127                         }
 128                         if (!macListRemoved.isEmpty()) {
 129                             result.put(key, macListRemoved);
 130                         }
 131                     }
 132                 }
 133             }
 134         }
 135         return result;
 136     }
 137 }