yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/tree/LeafSetModificationStrategy.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 java.util.Optional;
  11 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  12 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  14 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
  15 import org.opendaylight.yangtools.yang.data.api.schema.OrderedLeafSetNode;
  16 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
  17 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafSetNodeBuilder;
  18 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableOrderedLeafSetNodeBuilder;
  19 import org.opendaylight.yangtools.yang.data.impl.schema.tree.NormalizedNodeContainerSupport.Single;
  20 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
  21
  22 final class LeafSetModificationStrategy extends AbstractNodeContainerModificationStrategy {
  23     @SuppressWarnings({ "unchecked", "rawtypes" })
  24     private static final Single<NodeIdentifier, OrderedLeafSetNode<?>> ORDERED_SUPPORT =
  25             new Single(OrderedLeafSetNode.class, ChildTrackingPolicy.ORDERED,
  26                 foo -> ImmutableOrderedLeafSetNodeBuilder.create((OrderedLeafSetNode<?>)foo),
  27                 ImmutableOrderedLeafSetNodeBuilder::create);
  28     @SuppressWarnings({ "unchecked", "rawtypes" })
  29     private static final Single<NodeIdentifier, LeafSetNode<?>> UNORDERED_SUPPORT =
  30             new Single(LeafSetNode.class,
  31                 foo -> ImmutableLeafSetNodeBuilder.create((LeafSetNode<?>)foo),
  32                 ImmutableLeafSetNodeBuilder::create);
  33
  34     private final Optional<ModificationApplyOperation> entryStrategy;
  35
  36     LeafSetModificationStrategy(final LeafListSchemaNode schema, final DataTreeConfiguration treeConfig) {
  37         super(schema.isUserOrdered() ? ORDERED_SUPPORT : UNORDERED_SUPPORT, treeConfig);
  38         entryStrategy = Optional.of(new LeafSetEntryModificationStrategy(schema));
  39     }
  40
  41     @Override
  42     public Optional<ModificationApplyOperation> getChild(final PathArgument identifier) {
  43         return identifier instanceof NodeWithValue ? entryStrategy : Optional.empty();
  44     }
  45 }