opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardDataTreeSnapshot.java

   1 /*
   2  * Copyright (c) 2015 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
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import com.google.common.base.Optional;
  12 import java.net.URI;
  13 import java.util.Set;
  14 import org.opendaylight.controller.cluster.datastore.utils.PruningDataTreeModification;
  15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  16 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  17 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  18 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
  19
  20 class ShardDataTreeSnapshot implements DataTreeSnapshot {
  21
  22     private final DataTreeSnapshot dataTreeSnapshot;
  23     private final Set<URI> validNamespaces;
  24
  25     public ShardDataTreeSnapshot(DataTreeSnapshot dataTreeSnapshot, Set<URI> validNamespaces) {
  26         this.dataTreeSnapshot = dataTreeSnapshot;
  27         this.validNamespaces = validNamespaces;
  28     }
  29
  30     @Override
  31     public Optional<NormalizedNode<?, ?>> readNode(YangInstanceIdentifier yangInstanceIdentifier) {
  32         return this.dataTreeSnapshot.readNode(yangInstanceIdentifier);
  33     }
  34
  35     @Override
  36     public DataTreeModification newModification() {
  37         return new PruningDataTreeModification(this.dataTreeSnapshot.newModification(), validNamespaces);
  38     }
  39
  40
  41 }