yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedLeafSetModificationStrategy.java

   1 /*
   2  * Copyright (c) 2014 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.yangtools.yang.data.impl.schema.tree;
   9
  10 import static com.google.common.base.Preconditions.checkArgument;
  11 import com.google.common.base.Optional;
  12 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  13 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
  14 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  15 import org.opendaylight.yangtools.yang.data.api.schema.OrderedLeafSetNode;
  16 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
  17 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableOrderedLeafSetNodeBuilder;
  18 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  19
  20 final class OrderedLeafSetModificationStrategy extends AbstractNodeContainerModificationStrategy {
  21     private final Optional<ModificationApplyOperation> entryStrategy;
  22
  23     @SuppressWarnings({ "unchecked", "rawtypes" })
  24     OrderedLeafSetModificationStrategy(final LeafListSchemaNode schema) {
  25         super((Class) LeafSetNode.class);
  26         entryStrategy = Optional.<ModificationApplyOperation> of(new LeafSetEntryModificationStrategy(schema));
  27     }
  28
  29     @Override
  30     boolean isOrdered() {
  31         return true;
  32     }
  33
  34     @SuppressWarnings("rawtypes")
  35     @Override
  36     protected NormalizedNodeContainerBuilder createBuilder(final NormalizedNode<?, ?> original) {
  37         checkArgument(original instanceof OrderedLeafSetNode<?>);
  38         return ImmutableOrderedLeafSetNodeBuilder.create((OrderedLeafSetNode<?>) original);
  39     }
  40
  41     @Override
  42     public Optional<ModificationApplyOperation> getChild(final YangInstanceIdentifier.PathArgument identifier) {
  43         if (identifier instanceof YangInstanceIdentifier.NodeWithValue) {
  44             return entryStrategy;
  45         }
  46         return Optional.absent();
  47     }
  48 }