impl/src/main/java/org/opendaylight/unimgr/command/UniDeleteCommand.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.Set;
  11
  12 import org.opendaylight.controller.md.sal.binding.api.DataBroker;
  13 import org.opendaylight.controller.md.sal.binding.api.WriteTransaction;
  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.controller.md.sal.common.api.data.TransactionCommitFailedException;
  17 import org.opendaylight.unimgr.impl.UnimgrConstants;
  18 import org.opendaylight.unimgr.impl.UnimgrMapper;
  19 import org.opendaylight.unimgr.impl.UnimgrUtils;
  20 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.ovsdb.rev150105.OvsdbNodeRef;
  21 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.unimgr.rev151012.UniAugmentation;
  22 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  23 import org.opendaylight.yangtools.yang.binding.DataObject;
  24 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 import com.google.common.base.Optional;
  29 import com.google.common.util.concurrent.CheckedFuture;
  30
  31 public class UniDeleteCommand extends AbstractDeleteCommand {
  32
  33     private static final Logger LOG = LoggerFactory.getLogger(UniDeleteCommand.class);
  34
  35     public UniDeleteCommand(DataBroker dataBroker,
  36             AsyncDataChangeEvent<InstanceIdentifier<?>, DataObject> changes) {
  37         super.changes = changes;
  38         super.dataBroker = dataBroker;
  39     }
  40
  41     @Override
  42     public void execute() {
  43         Set<InstanceIdentifier<UniAugmentation>> removedUnis = UnimgrUtils.extractRemoved(changes, UniAugmentation.class);
  44         Set<InstanceIdentifier<Node>> removedNodes = UnimgrUtils.extractRemoved(changes, Node.class);
  45         if (!removedUnis.isEmpty()) {
  46             for (InstanceIdentifier<UniAugmentation> removedUniIid: removedUnis) {
  47                 UniAugmentation uniAug = UnimgrUtils.read(dataBroker, LogicalDatastoreType.CONFIGURATION, removedUniIid);
  48                 if(uniAug != null){
  49                     LOG.info("Uni Augmentation present.");
  50                     OvsdbNodeRef ovsNdRef = uniAug.getOvsdbNodeRef();
  51                     InstanceIdentifier<Node> iidNode = (InstanceIdentifier<Node>) ovsNdRef.getValue();
  52                     Optional<Node> optNode = UnimgrUtils.readNode(dataBroker, LogicalDatastoreType.CONFIGURATION, iidNode);
  53                     if (optNode.isPresent()) {
  54                         Node ovsdbNode = optNode.get();
  55                         InstanceIdentifier<Node> iidBridgeNode = UnimgrMapper.getOvsdbBridgeNodeIID(ovsdbNode.getNodeId(), UnimgrConstants.DEFAULT_BRIDGE_NAME);
  56                         deleteNode(iidBridgeNode);
  57                         LOG.info("Received a request to remove a UNI BridgeNode ", iidBridgeNode);
  58                     }
  59                     deleteNode(iidNode);
  60                     LOG.info("Received a request to remove an UNI ", removedUniIid);
  61                 }
  62             }
  63         }
  64         else {LOG.info("Removed UNIs is empty.");}
  65
  66         if(!removedNodes.isEmpty()) {
  67             for(InstanceIdentifier<Node> iidNode : removedNodes) {
  68                 Optional<Node> optNode = UnimgrUtils.readNode(dataBroker, LogicalDatastoreType.CONFIGURATION, iidNode);
  69                 if (optNode.isPresent()) {
  70                     Node ovsdbNode = optNode.get();
  71                     InstanceIdentifier<Node> iidBridgeNode = UnimgrMapper.getOvsdbBridgeNodeIID(ovsdbNode.getNodeId(), UnimgrConstants.DEFAULT_BRIDGE_NAME);
  72                     deleteNode(iidBridgeNode);
  73                     LOG.info("Received a request to remove a BridgeNode ", iidBridgeNode);
  74                 }
  75                 deleteNode(iidNode);
  76                 LOG.info("Received a request to remove a Node ", iidNode);
  77            }
  78         }
  79         else {LOG.info("Removed Nodes is empty.");}
  80     }
  81
  82     private void deleteNode(InstanceIdentifier<Node> iidNode) {
  83         WriteTransaction transaction = dataBroker.newWriteOnlyTransaction();
  84         transaction.delete(LogicalDatastoreType.OPERATIONAL, iidNode);
  85         transaction.delete(LogicalDatastoreType.CONFIGURATION, iidNode);
  86         CheckedFuture<Void, TransactionCommitFailedException> future = transaction.submit();
  87         try {
  88             future.checkedGet();
  89         } catch (TransactionCommitFailedException e) {
  90             LOG.warn("Failed to delete iidNode {} {}", e.getMessage(), iidNode);
  91         }
  92     }
  93 }