hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/transact/McastMacsLocalRemoveCommand.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.hwvtepsouthbound.HwvtepSouthboundConstants;
  23 import org.opendaylight.ovsdb.lib.notation.UUID;
  24 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  25 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  26 import org.opendaylight.ovsdb.schema.hardwarevtep.McastMacsLocal;
  27 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.HwvtepGlobalAugmentation;
  28 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.hwvtep.rev150901.hwvtep.global.attributes.LocalMcastMacs;
  29 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  30 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  31 import org.slf4j.Logger;
  32 import org.slf4j.LoggerFactory;
  33
  34 import com.google.common.base.Optional;
  35
  36 public class McastMacsLocalRemoveCommand extends AbstractTransactCommand {
  37     private static final Logger LOG = LoggerFactory.getLogger(McastMacsLocalRemoveCommand.class);
  38
  39     public McastMacsLocalRemoveCommand(HwvtepOperationalState state,
  40             Collection<DataTreeModification<Node>> changes) {
  41         super(state, changes);
  42     }
  43
  44     @Override
  45     public void execute(TransactionBuilder transaction) {
  46         Map<InstanceIdentifier<Node>, List<LocalMcastMacs>> removeds =
  47                 extractRemoved(getChanges(),LocalMcastMacs.class);
  48         if (!removeds.isEmpty()) {
  49             for (Entry<InstanceIdentifier<Node>, List<LocalMcastMacs>> removed:
  50                 removeds.entrySet()) {
  51                 removeMcastMacLocal(transaction,  removed.getKey(), removed.getValue());
  52             }
  53         }
  54     }
  55
  56     private void removeMcastMacLocal(TransactionBuilder transaction,
  57             InstanceIdentifier<Node> instanceIdentifier, List<LocalMcastMacs> macList) {
  58         for (LocalMcastMacs mac: macList) {
  59             LOG.debug("Removing localMcastMacs, mac address: {}", mac.getMacEntryKey().getValue());
  60             Optional<LocalMcastMacs> operationalMacOptional =
  61                     getOperationalState().getLocalMcastMacs(instanceIdentifier, mac.getKey());
  62             McastMacsLocal mcastMacsLocal = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
  63                     McastMacsLocal.class, null);
  64             if (operationalMacOptional.isPresent() && operationalMacOptional.get().getMacEntryUuid() != null) {
  65                 //when mac entry is deleted, its referenced locator set and locators are deleted automatically.
  66                 //TODO: locator in config DS is not deleted
  67                 UUID macEntryUUID = new UUID(operationalMacOptional.get().getMacEntryUuid().getValue());
  68                 mcastMacsLocal.getUuidColumn().setData(macEntryUUID);
  69                 transaction.add(op.delete(mcastMacsLocal.getSchema()).
  70                         where(mcastMacsLocal.getUuidColumn().getSchema().opEqual(macEntryUUID)).build());
  71                 transaction.add(op.comment("McastMacLocal: Deleting " + mac.getMacEntryKey().getValue()));
  72             } else {
  73                 LOG.warn("Unable to delete localMcastMacs {} because it was not found in the operational store",
  74                         mac.getMacEntryKey().getValue());
  75             }
  76         }
  77     }
  78
  79     private Map<InstanceIdentifier<Node>, List<LocalMcastMacs>> extractRemoved(
  80             Collection<DataTreeModification<Node>> changes, Class<LocalMcastMacs> class1) {
  81         Map<InstanceIdentifier<Node>, List<LocalMcastMacs>> result
  82             = new HashMap<InstanceIdentifier<Node>, List<LocalMcastMacs>>();
  83         if (changes != null && !changes.isEmpty()) {
  84             for (DataTreeModification<Node> change : changes) {
  85                 final InstanceIdentifier<Node> key = change.getRootPath().getRootIdentifier();
  86                 final DataObjectModification<Node> mod = change.getRootNode();
  87                 //If the node which localMcastMacs belong to is removed, all localMcastMacs should be removed too.
  88                 Node removed = TransactUtils.getRemoved(mod);
  89                 if (removed != null) {
  90                     List<LocalMcastMacs> macListRemoved = null;
  91                     if (removed.getAugmentation(HwvtepGlobalAugmentation.class) != null) {
  92                         macListRemoved = removed.getAugmentation(HwvtepGlobalAugmentation.class).getLocalMcastMacs();
  93                     }
  94                     if (macListRemoved != null) {
  95                         result.put(key, macListRemoved);
  96                     }
  97                 }
  98                 //If the node which localMcastMacs belong to is updated, and localMcastMacs may
  99                 //be created or updated or deleted, we need to get deleted ones.
 100                 Node updated = TransactUtils.getUpdated(mod);
 101                 Node before = mod.getDataBefore();
 102                 if (updated != null && before != null) {
 103                     List<LocalMcastMacs> macListUpdated = null;
 104                     List<LocalMcastMacs> macListBefore = null;
 105                     HwvtepGlobalAugmentation hgUpdated = updated.getAugmentation(HwvtepGlobalAugmentation.class);
 106                     if (hgUpdated != null) {
 107                         macListUpdated = hgUpdated.getLocalMcastMacs();
 108                     }
 109                     HwvtepGlobalAugmentation hgBefore = before.getAugmentation(HwvtepGlobalAugmentation.class);
 110                     if (hgBefore != null) {
 111                         macListBefore = hgBefore.getLocalMcastMacs();
 112                     }
 113                     if (macListBefore != null) {
 114                         List<LocalMcastMacs> macListRemoved = new ArrayList<LocalMcastMacs>();
 115                         if (macListUpdated != null) {
 116                             macListBefore.removeAll(macListUpdated);
 117                         }
 118                         //then exclude updated localMcastMacs
 119                         for (LocalMcastMacs macBefore: macListBefore) {
 120                             int i = 0;
 121                             for(; i < macListUpdated.size(); i++) {
 122                                 if (macBefore.getMacEntryKey().equals(macListUpdated.get(i).getMacEntryKey())) {
 123                                     break;
 124                                 }
 125                             }
 126                             if (i == macListUpdated.size()) {
 127                                 macListRemoved.add(macBefore);
 128                             }
 129                         }
 130                         if (!macListRemoved.isEmpty()) {
 131                             result.put(key, macListRemoved);
 132                         }
 133                     }
 134                 }
 135             }
 136         }
 137         return result;
 138     }
 139 }