impl/src/main/java/org/opendaylight/unimgr/command/EvcDeleteCommand.java

   1 /*
   2  * Copyright (c) 2015 CableLabs 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 package org.opendaylight.unimgr.command;
   9
  10 import java.util.List;
  11 import java.util.Set;
  12
  13 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  14 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeEvent;
  15 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  16 import org.opendaylight.unimgr.impl.UnimgrConstants;
  17 import org.opendaylight.unimgr.impl.UnimgrUtils;
  18 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeAugmentation;
  19 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.ovsdb.node.attributes.ManagedNodeEntry;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.unimgr.rev151012.EvcAugmentation;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.unimgr.rev151012.UniAugmentation;
  22 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.unimgr.rev151012.evc.UniDest;
  23 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.unimgr.rev151012.evc.UniSource;
  24 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  25 import org.opendaylight.yangtools.yang.binding.DataObject;
  26 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  27 import org.slf4j.Logger;
  28 import org.slf4j.LoggerFactory;
  29
  30 import com.google.common.base.Optional;
  31
  32 public class EvcDeleteCommand extends AbstractDeleteCommand {
  33
  34     private static final Logger LOG = LoggerFactory.getLogger(EvcDeleteCommand.class);
  35
  36     public EvcDeleteCommand(DataBroker dataBroker,
  37             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes) {
  38         super.changes = changes;
  39         super.dataBroker = dataBroker;
  40     }
  41
  42     @Override
  43     public void execute() {
  44         Set<InstanceIdentifier<EvcAugmentation>> removedEvcs = UnimgrUtils.extractRemoved(changes,
  45                                                                                          EvcAugmentation.class);
  46         if (!removedEvcs.isEmpty()) {
  47             for (InstanceIdentifier<EvcAugmentation> removedEvcIid: removedEvcs) {
  48                 EvcAugmentation evcAugmentation = UnimgrUtils.read(dataBroker,
  49                                                                    LogicalDatastoreType.OPERATIONAL,
  50                                                                    removedEvcIid);
  51                 if (evcAugmentation != null) {
  52                     List<UniSource> unisSource = evcAugmentation.getUniSource();
  53                     List<UniDest> unisDest = evcAugmentation.getUniDest();
  54                     if (unisSource != null && !unisSource.isEmpty()) {
  55                         for (UniSource source: unisSource) {
  56                             if (unisSource != null) {
  57                                 Optional<Node> optionalSourceUniNode =
  58                                                    UnimgrUtils.readNode(dataBroker,
  59                                                                         LogicalDatastoreType.OPERATIONAL,
  60                                                                         source.getUni());
  61                                 deleteEvcData(optionalSourceUniNode);
  62                             }
  63                         }
  64                     }
  65                     if (unisDest != null && !unisDest.isEmpty()) {
  66                         for (UniDest dest : unisDest) {
  67                             if (dest != null) {
  68                                 Optional<Node> optionalDestUniNode =
  69                                                    UnimgrUtils.readNode(dataBroker,
  70                                                                         LogicalDatastoreType.OPERATIONAL,
  71                                                                         dest.getUni());
  72                                 deleteEvcData(optionalDestUniNode);
  73                             }
  74                         }
  75                     }
  76                 }
  77                 UnimgrUtils.deleteNode(dataBroker,
  78                         removedEvcIid,
  79                         LogicalDatastoreType.OPERATIONAL);
  80             }
  81         }
  82     }
  83
  84     private void deleteEvcData(Optional<Node> optionalUni) {
  85         if (optionalUni.isPresent()) {
  86             UniAugmentation uniAugmentation =
  87                                 optionalUni
  88                                     .get()
  89                                     .getAugmentation(UniAugmentation.class);
  90             InstanceIdentifier<Node> ovsdbNodeIid =
  91                                               uniAugmentation
  92                                              .getOvsdbNodeRef()
  93                                              .getValue()
  94                                              .firstIdentifierOf(Node.class);
  95             Optional<Node> optionalOvsdNode =
  96                     UnimgrUtils.readNode(dataBroker,
  97                                          LogicalDatastoreType.OPERATIONAL,
  98                                          ovsdbNodeIid);
  99             if (optionalOvsdNode.isPresent()) {
 100                 Node ovsdbNode = optionalOvsdNode.get();
 101                         OvsdbNodeAugmentation ovsdbNodeAugmentation = ovsdbNode
 102                                 .getAugmentation(OvsdbNodeAugmentation.class);
 103                 for (ManagedNodeEntry managedNodeEntry: ovsdbNodeAugmentation.getManagedNodeEntry()) {
 104                     InstanceIdentifier<Node> bridgeIid = managedNodeEntry
 105                                                              .getBridgeRef()
 106                                                              .getValue()
 107                                                              .firstIdentifierOf(Node.class);
 108                     UnimgrUtils.deleteNode(dataBroker, bridgeIid, LogicalDatastoreType.CONFIGURATION);
 109                     UnimgrUtils.createBridgeNode(dataBroker,
 110                                                  ovsdbNodeIid,
 111                                                  uniAugmentation,
 112                                                  UnimgrConstants.DEFAULT_BRIDGE_NAME);
 113                 }
 114             }
 115         } else {
 116             LOG.info("Unable to retrieve UNI from the EVC.");
 117         }
 118     }
 119 }