yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/OrderedMapModificationStrategy.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.yangtools.yang.data.impl.schema.tree;
  10
  11 import static com.google.common.base.Preconditions.checkArgument;
  12
  13 import com.google.common.base.Optional;
  14 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  15 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  16 import org.opendaylight.yangtools.yang.data.api.schema.OrderedMapNode;
  17 import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
  18 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
  19 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableOrderedMapNodeBuilder;
  20 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
  21
  22 final class OrderedMapModificationStrategy extends AbstractNodeContainerModificationStrategy {
  23     private final Optional<ModificationApplyOperation> entryStrategy;
  24
  25     OrderedMapModificationStrategy(final ListSchemaNode schema, final TreeType treeType) {
  26         super(OrderedMapNode.class, treeType);
  27         entryStrategy = Optional.<ModificationApplyOperation> of(new ListEntryModificationStrategy(schema, treeType));
  28     }
  29
  30     @Override
  31     protected ChildTrackingPolicy getChildPolicy() {
  32         return ChildTrackingPolicy.ORDERED;
  33     }
  34
  35     @SuppressWarnings("rawtypes")
  36     @Override
  37     protected NormalizedNodeContainerBuilder createBuilder(final NormalizedNode<?, ?> original) {
  38         checkArgument(original instanceof OrderedMapNode);
  39         return ImmutableOrderedMapNodeBuilder.create((OrderedMapNode) original);
  40     }
  41
  42     @Override
  43     protected NormalizedNode<?, ?> createEmptyValue(NormalizedNode<?, ?> original) {
  44         checkArgument(original instanceof OrderedMapNode);
  45         return ImmutableOrderedMapNodeBuilder.create().withNodeIdentifier(((OrderedMapNode) original).getIdentifier())
  46                 .build();
  47     }
  48
  49     @Override
  50     public Optional<ModificationApplyOperation> getChild(final YangInstanceIdentifier.PathArgument identifier) {
  51         if (identifier instanceof YangInstanceIdentifier.NodeIdentifierWithPredicates) {
  52             return entryStrategy;
  53         }
  54         return Optional.absent();
  55     }
  56
  57     @Override
  58     public String toString() {
  59         return "OrderedMapModificationStrategy [entry=" + entryStrategy + "]";
  60     }
  61 }