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