hwvtepsouthbound/hwvtepsouthbound-impl/src/main/java/org/opendaylight/ovsdb/hwvtepsouthbound/HwvtepSouthboundUtil.java

   1 /*
   2  * Copyright (c) 2015 Ericsson India Global Services Pvt Ltd. 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;
  10
  11 import org.opendaylight.controller.md.sal.binding.api.ReadWriteTransaction;
  12 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  13 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  14 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  15 import org.opendaylight.yang.gen.v1.urn.tbd.params.xml.ns.yang.network.topology.rev131021.network.topology.topology.Node;
  16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  17 import org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException;
  18 import org.slf4j.Logger;
  19 import org.slf4j.LoggerFactory;
  20
  21 import com.google.common.base.Optional;
  22 import com.google.common.util.concurrent.CheckedFuture;
  23
  24 public class HwvtepSouthboundUtil {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(HwvtepSouthboundUtil.class);
  27
  28     private static InstanceIdentifierCodec instanceIdentifierCodec;
  29
  30     private HwvtepSouthboundUtil() {
  31         // Prevent instantiating a utility class
  32     }
  33
  34     public static void setInstanceIdentifierCodec(InstanceIdentifierCodec iidc) {
  35         instanceIdentifierCodec = iidc;
  36     }
  37
  38     public static InstanceIdentifierCodec getInstanceIdentifierCodec() {
  39         return instanceIdentifierCodec;
  40     }
  41
  42     public static String serializeInstanceIdentifier(InstanceIdentifier<?> iid) {
  43         return instanceIdentifierCodec.serialize(iid);
  44     }
  45
  46     public static InstanceIdentifier<?> deserializeInstanceIdentifier(String iidString) {
  47         InstanceIdentifier<?> result = null;
  48         try {
  49             result = instanceIdentifierCodec.bindingDeserializer(iidString);
  50         } catch (DeserializationException e) {
  51             LOG.warn("Unable to deserialize iidString", e);
  52         }
  53         return result;
  54     }
  55
  56     public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> Optional<D> readNode(
  57                     ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
  58         Optional<D> node = Optional.absent();
  59         try {
  60             node = transaction.read(LogicalDatastoreType.OPERATIONAL, connectionIid).checkedGet();
  61         } catch (final ReadFailedException e) {
  62             LOG.warn("Read Operational/DS for Node failed! {}", connectionIid, e);
  63         }
  64         return node;
  65     }
  66
  67     public static <D extends org.opendaylight.yangtools.yang.binding.DataObject> boolean deleteNode(
  68                     ReadWriteTransaction transaction, final InstanceIdentifier<D> connectionIid) {
  69         boolean result = false;
  70         transaction.delete(LogicalDatastoreType.OPERATIONAL, connectionIid);
  71         CheckedFuture<Void, TransactionCommitFailedException> future = transaction.submit();
  72         try {
  73             future.checkedGet();
  74             result = true;
  75         } catch (TransactionCommitFailedException e) {
  76             LOG.warn("Failed to delete {} ", connectionIid, e);
  77         }
  78         return result;
  79     }
  80 }