hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/transact/McastMacsRemoteRemoveCommand.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.hwvtepsouthbound.HwvtepSouthboundConstants;
  23 import org.opendaylight.ovsdb.lib.operations.TransactionBuilder;
  24 import org.opendaylight.ovsdb.lib.schema.typed.TyperUtils;
  25 import org.opendaylight.ovsdb.schema.hardwarevtep.McastMacsRemote;
  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.RemoteMcastMacs;
  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 McastMacsRemoteRemoveCommand extends AbstractTransactCommand {
  36     private static final Logger LOG = LoggerFactory.getLogger(PhysicalPortRemoveCommand.class);
  37
  38     public McastMacsRemoteRemoveCommand(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<RemoteMcastMacs>> removeds =
  46                 extractRemoved(getChanges(),RemoteMcastMacs.class);
  47         if (!removeds.isEmpty()) {
  48             for (Entry<InstanceIdentifier<Node>, List<RemoteMcastMacs>> removed:
  49                 removeds.entrySet()) {
  50                 removeMcastMacRemote(transaction,  removed.getKey(), removed.getValue());
  51             }
  52         }
  53     }
  54
  55     private void removeMcastMacRemote(TransactionBuilder transaction,
  56             InstanceIdentifier<Node> instanceIdentifier, List<RemoteMcastMacs> macList) {
  57         for (RemoteMcastMacs mac: macList) {
  58             LOG.debug("Removing remoteMcastMacs, mac address: {}", mac.getMacEntryKey().getValue());
  59             Optional<RemoteMcastMacs> operationalMacOptional =
  60                     getOperationalState().getRemoteMcastMacs(instanceIdentifier, mac.getKey());
  61             McastMacsRemote mcastMacsRemote = TyperUtils.getTypedRowWrapper(transaction.getDatabaseSchema(),
  62                     McastMacsRemote.class, null);
  63             if (operationalMacOptional.isPresent()) {
  64                 //when mac entry is deleted, its referenced locator set and locators are deleted automatically.
  65                 //TODO: locator in config DS is not deleted
  66                 String macString = null;
  67                 if (mac.getMacEntryKey().equals(HwvtepSouthboundConstants.UNKNOWN_DST_MAC)) {
  68                     macString = HwvtepSouthboundConstants.UNKNOWN_DST_STRING;
  69                 } else {
  70                     macString = mac.getMacEntryKey().getValue();
  71                 }
  72                 transaction.add(op.delete(mcastMacsRemote.getSchema())
  73                         .where(mcastMacsRemote.getMacColumn().getSchema().opEqual(macString)).build());
  74                 transaction.add(op.comment("Remote McastMacRemote: Deleting " + mac.getMacEntryKey().getValue()));
  75             } else {
  76                 LOG.warn("Unable to delete remoteMcastMacs {} because it was not found in the operational store",
  77                         mac.getMacEntryKey().getValue());
  78             }
  79         }
  80     }
  81
  82     private Map<InstanceIdentifier<Node>, List<RemoteMcastMacs>> extractRemoved(
  83             Collection<DataTreeModification<Node>> changes, Class<RemoteMcastMacs> class1) {
  84         Map<InstanceIdentifier<Node>, List<RemoteMcastMacs>> result
  85             = new HashMap<InstanceIdentifier<Node>, List<RemoteMcastMacs>>();
  86         if (changes != null && !changes.isEmpty()) {
  87             for (DataTreeModification<Node> change : changes) {
  88                 final InstanceIdentifier<Node> key = change.getRootPath().getRootIdentifier();
  89                 final DataObjectModification<Node> mod = change.getRootNode();
  90                 //If the node which remoteMcastMacs belong to is removed, all remoteMcastMacs should be removed too.
  91                 Node removed = TransactUtils.getRemoved(mod);
  92                 if (removed != null) {
  93                     List<RemoteMcastMacs> macListRemoved = null;
  94                     if (removed.getAugmentation(HwvtepGlobalAugmentation.class) != null) {
  95                         macListRemoved = removed.getAugmentation(HwvtepGlobalAugmentation.class).getRemoteMcastMacs();
  96                     }
  97                     if (macListRemoved != null) {
  98                         result.put(key, macListRemoved);
  99                     }
 100                 }
 101                 //If the node which remoteMcastMacs belong to is updated, and remoteMcastMacs may
 102                 //be created or updated or deleted, we need to get deleted ones.
 103                 Node updated = TransactUtils.getUpdated(mod);
 104                 Node before = mod.getDataBefore();
 105                 if (updated != null && before != null) {
 106                     List<RemoteMcastMacs> macListUpdated = null;
 107                     List<RemoteMcastMacs> macListBefore = null;
 108                     HwvtepGlobalAugmentation hgUpdated = updated.getAugmentation(HwvtepGlobalAugmentation.class);
 109                     if (hgUpdated != null) {
 110                         macListUpdated = hgUpdated.getRemoteMcastMacs();
 111                     }
 112                     HwvtepGlobalAugmentation hgBefore = before.getAugmentation(HwvtepGlobalAugmentation.class);
 113                     if (hgBefore != null) {
 114                         macListBefore = hgBefore.getRemoteMcastMacs();
 115                     }
 116                     if (macListBefore != null) {
 117                         List<RemoteMcastMacs> macListRemoved = new ArrayList<RemoteMcastMacs>();
 118                         if (macListUpdated != null) {
 119                             macListBefore.removeAll(macListUpdated);
 120                         }
 121                         //then exclude updated remoteMcastMacs
 122                         for (RemoteMcastMacs macBefore: macListBefore) {
 123                             int i = 0;
 124                             for(; i < macListUpdated.size(); i++) {
 125                                 if (macBefore.getMacEntryKey().equals(macListUpdated.get(i).getMacEntryKey())) {
 126                                     break;
 127                                 }
 128                             }
 129                             if (i == macListUpdated.size()) {
 130                                 macListRemoved.add(macBefore);
 131                             }
 132                         }
 133                         if (!macListRemoved.isEmpty()) {
 134                             result.put(key, macListRemoved);
 135                         }
 136                     }
 137                 }
 138             }
 139         }
 140         return result;
 141     }
 142 }