yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/builder/impl/ImmutableLeafSetNodeBuilder.java

   1 /*
   2  * Copyright (c) 2013 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.builder.impl;
   9
  10 import java.util.Collections;
  11 import java.util.HashMap;
  12 import java.util.List;
  13 import java.util.Map;
  14
  15 import org.opendaylight.yangtools.concepts.Immutable;
  16 import org.opendaylight.yangtools.util.MapAdaptor;
  17 import org.opendaylight.yangtools.yang.common.QName;
  18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  21 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
  22 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
  23 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder;
  24 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
  25 import org.opendaylight.yangtools.yang.data.impl.schema.nodes.AbstractImmutableNormalizedNode;
  26 import org.opendaylight.yangtools.yang.data.impl.schema.nodes.AbstractImmutableNormalizedValueNode;
  27
  28 import com.google.common.base.Optional;
  29 import com.google.common.collect.Iterables;
  30
  31 public class ImmutableLeafSetNodeBuilder<T> implements ListNodeBuilder<T, LeafSetEntryNode<T>> {
  32
  33     private final Map<YangInstanceIdentifier.NodeWithValue, LeafSetEntryNode<T>> value;
  34     private YangInstanceIdentifier.NodeIdentifier nodeIdentifier;
  35
  36     protected ImmutableLeafSetNodeBuilder() {
  37         value = new HashMap<>();
  38     }
  39
  40     protected ImmutableLeafSetNodeBuilder(final ImmutableLeafSetNode<T> node) {
  41         nodeIdentifier = node.getIdentifier();
  42         value = MapAdaptor.getDefaultInstance().takeSnapshot(node.children);
  43     }
  44
  45     public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create() {
  46         return new ImmutableLeafSetNodeBuilder<>();
  47     }
  48
  49     public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create(final LeafSetNode<T> node) {
  50         if (!(node instanceof ImmutableLeafSetNode<?>)) {
  51             throw new UnsupportedOperationException(String.format("Cannot initialize from class %s", node.getClass()));
  52         }
  53
  54         return new ImmutableLeafSetNodeBuilder<T>((ImmutableLeafSetNode<T>) node);
  55     }
  56
  57     @Override
  58     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChild(final LeafSetEntryNode<T> child) {
  59         this.value.put(child.getIdentifier(), child);
  60         return this;
  61     }
  62
  63     @Override
  64     public ListNodeBuilder<T, LeafSetEntryNode<T>> withoutChild(final PathArgument key) {
  65         this.value.remove(key);
  66         return this;
  67     }
  68
  69     @Override
  70     public LeafSetNode<T> build() {
  71         return new ImmutableLeafSetNode<>(nodeIdentifier, MapAdaptor.getDefaultInstance().optimize(value));
  72     }
  73
  74     @Override
  75     public ListNodeBuilder<T, LeafSetEntryNode<T>> withNodeIdentifier(
  76             final YangInstanceIdentifier.NodeIdentifier nodeIdentifier) {
  77         this.nodeIdentifier = nodeIdentifier;
  78         return this;
  79     }
  80
  81     @Override
  82     public ListNodeBuilder<T, LeafSetEntryNode<T>> withValue(final List<LeafSetEntryNode<T>> value) {
  83         for (final LeafSetEntryNode<T> leafSetEntry : value) {
  84             withChild(leafSetEntry);
  85         }
  86         return this;
  87     }
  88
  89
  90     @Override
  91     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value, final Map<QName, String> attributes) {
  92         final ImmutableLeafSetEntryNodeBuilder<T> b = ImmutableLeafSetEntryNodeBuilder.create();
  93         b.withNodeIdentifier(new YangInstanceIdentifier.NodeWithValue(nodeIdentifier.getNodeType(), value));
  94         b.withValue(value);
  95         b.withAttributes(attributes);
  96         return withChild(b.build());
  97     }
  98
  99     @Override
 100     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value) {
 101         return withChildValue(value, Collections.<QName,String>emptyMap());
 102     }
 103
 104     protected final static class ImmutableLeafSetNode<T> extends
 105             AbstractImmutableNormalizedValueNode<YangInstanceIdentifier.NodeIdentifier, Iterable<LeafSetEntryNode<T>>> implements
 106             Immutable, LeafSetNode<T> {
 107
 108         private final Map<YangInstanceIdentifier.NodeWithValue, LeafSetEntryNode<T>> children;
 109
 110         ImmutableLeafSetNode(final YangInstanceIdentifier.NodeIdentifier nodeIdentifier,
 111                 final Map<YangInstanceIdentifier.NodeWithValue, LeafSetEntryNode<T>> children) {
 112             super(nodeIdentifier, Iterables.unmodifiableIterable(children.values()));
 113             this.children = children;
 114         }
 115
 116         @Override
 117         public Optional<LeafSetEntryNode<T>> getChild(final YangInstanceIdentifier.NodeWithValue child) {
 118             return Optional.fromNullable(children.get(child));
 119         }
 120
 121         @Override
 122         protected int valueHashCode() {
 123             return children.hashCode();
 124         }
 125
 126         @Override
 127         protected boolean valueEquals(final AbstractImmutableNormalizedNode<?, ?> other) {
 128             return children.equals(((ImmutableLeafSetNode<?>) other).children);
 129         }
 130     }
 131
 132     @Override
 133     public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>> addChild(
 134             final LeafSetEntryNode<T> child) {
 135         return withChild(child);
 136     }
 137
 138     @Override
 139     public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>> removeChild(
 140             final PathArgument key) {
 141         return withoutChild(key);
 142     }
 143
 144 }