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

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