hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/transact/UcastMacsLocalRemoveCommand.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.UcastMacsLocal;
  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.LocalUcastMacs;
  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 UcastMacsLocalRemoveCommand extends AbstractTransactCommand {
  36     private static final Logger LOG = LoggerFactory.getLogger(UcastMacsLocalRemoveCommand.class);
  37
  38     public UcastMacsLocalRemoveCommand(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<LocalUcastMacs>> removeds =
  46                 extractRemoved(getChanges(),LocalUcastMacs.class);
  47         if (!removeds.isEmpty()) {
  48             for (Entry<InstanceIdentifier<Node>, List<LocalUcastMacs>> removed:
  49                 removeds.entrySet()) {
  50                 removeUcastMacLocal(transaction,  removed.getKey(), removed.getValue());
  51             }
  52         }
  53     }
  54
  55     private void removeUcastMacLocal(TransactionBuilder transaction,
  56             InstanceIdentifier<Node> instanceIdentifier, List<LocalUcastMacs> macList) {
  57         for (LocalUcastMacs mac: macList) {
  58             LOG.debug("Removing remoteUcastMacs, mac address: {}", mac.getMacEntryKey().getValue());
  59             Optional<LocalUcastMacs> operationalMacOptional =
  60                     getOperationalState().getLocalUcastMacs(instanceIdentifier, mac.getKey());
  61             UcastMacsLocal ucastMacsLocal = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
  62                     UcastMacsLocal.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 user need to be removed explicitly by user.
  66                 UUID macEntryUUID = new UUID(operationalMacOptional.get().getMacEntryUuid().getValue());
  67                 ucastMacsLocal.getUuidColumn().setData(macEntryUUID);
  68                 transaction.add(op.delete(ucastMacsLocal.getSchema()).
  69                         where(ucastMacsLocal.getUuidColumn().getSchema().opEqual(macEntryUUID)).build());
  70                 transaction.add(op.comment("UcastMacLocal: Deleting " + mac.getMacEntryKey().getValue()));
  71             } else {
  72                 LOG.warn("Unable to delete remoteUcastMacs {} because it was not found in the operational store",
  73                         mac.getMacEntryKey().getValue());
  74             }
  75         }
  76     }
  77
  78     private Map<InstanceIdentifier<Node>, List<LocalUcastMacs>> extractRemoved(
  79             Collection<DataTreeModification<Node>> changes, Class<LocalUcastMacs> class1) {
  80         Map<InstanceIdentifier<Node>, List<LocalUcastMacs>> result
  81             = new HashMap<InstanceIdentifier<Node>, List<LocalUcastMacs>>();
  82         if (changes != null && !changes.isEmpty()) {
  83             for (DataTreeModification<Node> change : changes) {
  84                 final InstanceIdentifier<Node> key = change.getRootPath().getRootIdentifier();
  85                 final DataObjectModification<Node> mod = change.getRootNode();
  86                 //If the node which remoteUcastMacs belong to is removed, all remoteUcastMacs should be removed too.
  87                 Node removed = TransactUtils.getRemoved(mod);
  88                 if (removed != null) {
  89                     List<LocalUcastMacs> macListRemoved = null;
  90                     if (removed.getAugmentation(HwvtepGlobalAugmentation.class) != null) {
  91                         macListRemoved = removed.getAugmentation(HwvtepGlobalAugmentation.class).getLocalUcastMacs();
  92                     }
  93                     if (macListRemoved != null) {
  94                         result.put(key, macListRemoved);
  95                     }
  96                 }
  97                 //If the node which remoteUcastMacs belong to is updated, and remoteUcastMacs may
  98                 //be created or updated or deleted, we need to get deleted ones.
  99                 Node updated = TransactUtils.getUpdated(mod);
 100                 Node before = mod.getDataBefore();
 101                 if (updated != null && before != null) {
 102                     List<LocalUcastMacs> macListUpdated = null;
 103                     List<LocalUcastMacs> macListBefore = null;
 104                     HwvtepGlobalAugmentation hgUpdated = updated.getAugmentation(HwvtepGlobalAugmentation.class);
 105                     if (hgUpdated != null) {
 106                         macListUpdated = hgUpdated.getLocalUcastMacs();
 107                     }
 108                     HwvtepGlobalAugmentation hgBefore = before.getAugmentation(HwvtepGlobalAugmentation.class);
 109                     if (hgBefore != null) {
 110                         macListBefore = hgBefore.getLocalUcastMacs();
 111                     }
 112                     if (macListBefore != null) {
 113                         List<LocalUcastMacs> macListRemoved = new ArrayList<LocalUcastMacs>();
 114                         if (macListUpdated != null) {
 115                             macListBefore.removeAll(macListUpdated);
 116                         }
 117                         //then exclude updated remoteUcastMacs
 118                         for (LocalUcastMacs macBefore: macListBefore) {
 119                             int i = 0;
 120                             for(; i < macListUpdated.size(); i++) {
 121                                 if (macBefore.getMacEntryKey().equals(macListUpdated.get(i).getMacEntryKey())) {
 122                                     break;
 123                                 }
 124                             }
 125                             if (i == macListUpdated.size()) {
 126                                 macListRemoved.add(macBefore);
 127                             }
 128                         }
 129                         if (!macListRemoved.isEmpty()) {
 130                             result.put(key, macListRemoved);
 131                         }
 132                     }
 133                 }
 134             }
 135         }
 136         return result;
 137     }
 138 }