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