yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/UnorderedLeafSetModificationStrategy.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
  12 import com.google.common.base.Optional;
  13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  14 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
  15 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  16 import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
  17 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
  18 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetNodeBuilder;
  19 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  20
  21 final class UnorderedLeafSetModificationStrategy extends AbstractNodeContainerModificationStrategy {
  22     private final Optional<ModificationApplyOperation> entryStrategy;
  23
  24     @SuppressWarnings({ "unchecked", "rawtypes" })
  25     UnorderedLeafSetModificationStrategy(final LeafListSchemaNode schema, final TreeType treeType) {
  26         super((Class) LeafSetNode.class, treeType);
  27         entryStrategy = Optional.<ModificationApplyOperation> of(new LeafSetEntryModificationStrategy(schema));
  28     }
  29
  30     @SuppressWarnings("rawtypes")
  31     @Override
  32     protected NormalizedNodeContainerBuilder createBuilder(final NormalizedNode<?, ?> original) {
  33         checkArgument(original instanceof LeafSetNode<?>);
  34         return ImmutableLeafSetNodeBuilder.create((LeafSetNode<?>) original);
  35     }
  36
  37     @Override
  38     protected NormalizedNode<?, ?> createEmptyValue(NormalizedNode<?, ?> original) {
  39         checkArgument(original instanceof LeafSetNode<?>);
  40         return ImmutableLeafSetNodeBuilder.create().withNodeIdentifier(((LeafSetNode<?>) original).getIdentifier())
  41                 .build();
  42     }
  43
  44     @Override
  45     public Optional<ModificationApplyOperation> getChild(final YangInstanceIdentifier.PathArgument identifier) {
  46         if (identifier instanceof YangInstanceIdentifier.NodeWithValue) {
  47             return entryStrategy;
  48         }
  49         return Optional.absent();
  50     }
  51 }