private CheckedFuture<Void, TransactionCommitFailedException> deleteDataViaTransaction(
     final DOMDataWriteTransaction writeTransaction,
     final LogicalDatastoreType datastore,
     final YangInstanceIdentifier path) {
   LOG.trace("Delete {} via Restconf: {}", datastore.name(), path);
   writeTransaction.delete(datastore, path);
   return writeTransaction.submit();
 }
  /**
   * This method stores the pushUpdate Notification data to MD-SAL
   *
   * @param sub_id
   * @param timeofeventupdate
   * @param domSource
   * @param data
   */
  private void storeToMdSal(
      String sub_id, String timeofeventupdate, DOMSource domSource, String data) {
    NodeIdentifier subscriptionid =
        NodeIdentifier.create(QName.create(PushUpdates.QNAME, "subscription-id"));
    NodeIdentifier timeofupdate =
        NodeIdentifier.create(QName.create(PushUpdates.QNAME, "time-of-update"));
    NodeIdentifier datanode = NodeIdentifier.create(QName.create(PushUpdates.QNAME, "data"));
    YangInstanceIdentifier pid =
        YangInstanceIdentifier.builder()
            .node(PushUpdates.QNAME)
            .node(
                org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.yangpush.rev150105
                    .push.updates.PushUpdate.QNAME)
            .build();

    NodeIdentifierWithPredicates p =
        new NodeIdentifierWithPredicates(
            QName.create(PushUpdates.QNAME, "push-update"),
            QName.create(PushUpdates.QNAME, "subscription-id"),
            sub_id);

    MapEntryNode men =
        ImmutableNodes.mapEntryBuilder()
            .withNodeIdentifier(p)
            .withChild(ImmutableNodes.leafNode(subscriptionid, sub_id))
            .withChild(ImmutableNodes.leafNode(timeofupdate, timeofeventupdate))
            .withChild(ImmutableNodes.leafNode(datanode, data))
            .build();

    DOMDataWriteTransaction tx = this.globalDomDataBroker.newWriteOnlyTransaction();
    YangInstanceIdentifier yid =
        pid.node(
            new NodeIdentifierWithPredicates(
                org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.yangpush.rev150105
                    .push.updates.PushUpdate.QNAME,
                men.getIdentifier().getKeyValues()));
    tx.merge(LogicalDatastoreType.CONFIGURATION, yid, men);
    LOG.info("--DATA PATh: {}\n--DATA\n{}", yid, men);
    try {
      tx.submit().checkedGet();
    } catch (TransactionCommitFailedException e) {
      e.printStackTrace();
    }
  }