dom/mdsal-dom-inmemory-datastore/src/main/java/org/opendaylight/mdsal/dom/store/inmemory/WriteableSubshardBoundaryNode.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
   9 package org.opendaylight.mdsal.dom.store.inmemory;
  10
  11 import com.google.common.base.Preconditions;
  12 import com.google.common.collect.ImmutableMap;
  13 import java.util.Map;
  14 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteCursor;
  15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  16
  17 final class WriteableSubshardBoundaryNode extends WriteableModificationNode {
  18
  19     private final ForeignShardModificationContext boundary;
  20
  21     private WriteableSubshardBoundaryNode(final ForeignShardModificationContext boundary) {
  22         this.boundary = Preconditions.checkNotNull(boundary);
  23     }
  24
  25     public static WriteableSubshardBoundaryNode from(final ForeignShardModificationContext value) {
  26         return new WriteableSubshardBoundaryNode(value);
  27     }
  28
  29     @Override
  30     public PathArgument getIdentifier() {
  31         return boundary.getIdentifier().getRootIdentifier().getLastPathArgument();
  32     }
  33
  34     @Override
  35     WriteCursorStrategy createOperation(final DOMDataTreeWriteCursor parentCursor) {
  36         return new DelegatingWriteCursorStrategy() {
  37             @Override
  38             public void exit() {
  39                 parentCursor.exit();
  40             }
  41
  42             @Override
  43             protected DelegatingWriteCursorStrategy childStrategy() {
  44                 return new DelegatingWriteCursorStrategy() {
  45                     @Override
  46                     protected DOMDataTreeWriteCursor delegate() {
  47                         return boundary.getCursor();
  48                     }
  49                 };
  50             }
  51
  52             @Override
  53             protected DOMDataTreeWriteCursor delegate() {
  54                 return boundary.getCursor();
  55             }
  56         };
  57     }
  58
  59     @Override
  60     WriteableModificationNode getChild(final PathArgument node) {
  61         // Another level of nesting should be taken care of by underlying cursor.
  62         return null;
  63     }
  64
  65     @Override
  66     void markDeleted() {
  67         // FIXME: Should we delete all data or disconnect?
  68     }
  69
  70     @Override
  71     Map<PathArgument, WriteableModificationNode> getChildrenWithSubshards() {
  72         return ImmutableMap.of();
  73     }
  74 }