sxp-mapper/src/main/java/org/opendaylight/groupbasedpolicy/sxp/mapper/impl/util/SxpListenerUtil.java

   1 /**
   2  * Copyright (c) 2016 Cisco Systems, Inc. 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.groupbasedpolicy.sxp.mapper.impl.util;
   9
  10 import com.google.common.base.Optional;
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import javax.annotation.Nullable;
  13 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
  14 import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
  15 import org.opendaylight.groupbasedpolicy.sxp.mapper.api.SimpleCachedDao;
  16 import org.opendaylight.yangtools.yang.binding.DataObject;
  17
  18 /**
  19  * Purpose: provide general logic used by listeners
  20  */
  21 public final class SxpListenerUtil {
  22
  23     private SxpListenerUtil() {
  24         throw new IllegalAccessError("constructing util class");
  25     }
  26
  27
  28     public static <K, V extends DataObject> void updateCachedDao(final SimpleCachedDao<K, V> valueCachedDao,
  29                                                                  final K key,
  30                                                                  final DataTreeModification<V> change) {
  31         final V value = change.getRootNode().getDataAfter();
  32         valueCachedDao.update(key, value);
  33     }
  34
  35     public static FutureCallback<Optional<?>> createTxCloseCallback(final ReadOnlyTransaction rTx) {
  36         return new FutureCallback<Optional<?>>() {
  37             @Override
  38             public void onSuccess(@Nullable final Optional<?> result) {
  39                 rTx.close();
  40             }
  41
  42             @Override
  43             public void onFailure(final Throwable t) {
  44                 rTx.close();
  45             }
  46         };
  47     }
  48 }