yang/yang-data-impl/src/main/java/org/opendaylight/yangtools/yang/data/impl/schema/builder/impl/ImmutableOrderedLeafSetNodeBuilder.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 com.google.common.collect.Iterables;
  11 import java.util.Collection;
  12 import java.util.Collections;
  13 import java.util.LinkedHashMap;
  14 import java.util.Map;
  15 import java.util.Optional;
  16 import org.opendaylight.yangtools.concepts.Immutable;
  17 import org.opendaylight.yangtools.util.UnmodifiableCollection;
  18 import org.opendaylight.yangtools.yang.common.QName;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
  21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  22 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
  23 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
  24 import org.opendaylight.yangtools.yang.data.api.schema.OrderedLeafSetNode;
  25 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.ListNodeBuilder;
  26 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeContainerBuilder;
  27 import org.opendaylight.yangtools.yang.data.impl.schema.nodes.AbstractImmutableNormalizedNode;
  28
  29 public class ImmutableOrderedLeafSetNodeBuilder<T> implements ListNodeBuilder<T, LeafSetEntryNode<T>> {
  30
  31     private Map<NodeWithValue, LeafSetEntryNode<T>> value;
  32     private NodeIdentifier nodeIdentifier;
  33     private boolean dirty;
  34
  35     protected ImmutableOrderedLeafSetNodeBuilder() {
  36         value = new LinkedHashMap<>();
  37         dirty = false;
  38     }
  39
  40     protected ImmutableOrderedLeafSetNodeBuilder(final ImmutableOrderedLeafSetNode<T> node) {
  41         nodeIdentifier = node.getIdentifier();
  42         value = node.getChildren();
  43         dirty = true;
  44     }
  45
  46     public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create() {
  47         return new ImmutableOrderedLeafSetNodeBuilder<>();
  48     }
  49
  50     public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create(final LeafSetNode<T> node) {
  51         if (!(node instanceof ImmutableOrderedLeafSetNode<?>)) {
  52             throw new UnsupportedOperationException(String.format("Cannot initialize from class %s", node.getClass()));
  53         }
  54
  55         return new ImmutableOrderedLeafSetNodeBuilder<>((ImmutableOrderedLeafSetNode<T>) node);
  56     }
  57
  58     private void checkDirty() {
  59         if (dirty) {
  60             value = new LinkedHashMap<>(value);
  61             dirty = false;
  62         }
  63     }
  64
  65     @Override
  66     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChild(final LeafSetEntryNode<T> child) {
  67         checkDirty();
  68         this.value.put(child.getIdentifier(), child);
  69         return this;
  70     }
  71
  72     @Override
  73     public ListNodeBuilder<T, LeafSetEntryNode<T>> withoutChild(final PathArgument key) {
  74         checkDirty();
  75         this.value.remove(key);
  76         return this;
  77     }
  78
  79     @Override
  80     public OrderedLeafSetNode<T> build() {
  81         dirty = true;
  82         return new ImmutableOrderedLeafSetNode<>(nodeIdentifier, value);
  83     }
  84
  85     @Override
  86     public ListNodeBuilder<T, LeafSetEntryNode<T>> withNodeIdentifier(final NodeIdentifier nodeIdentifier) {
  87         this.nodeIdentifier = nodeIdentifier;
  88         return this;
  89     }
  90
  91     @Override
  92     public ListNodeBuilder<T, LeafSetEntryNode<T>> withValue(final Collection<LeafSetEntryNode<T>> value) {
  93         checkDirty();
  94         for (final LeafSetEntryNode<T> leafSetEntry : value) {
  95             withChild(leafSetEntry);
  96         }
  97         return this;
  98     }
  99
 100     @Override
 101     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value, final Map<QName, String> attributes) {
 102         final ImmutableLeafSetEntryNodeBuilder<T> b = ImmutableLeafSetEntryNodeBuilder.create();
 103         b.withNodeIdentifier(new NodeWithValue<>(nodeIdentifier.getNodeType(), value));
 104         b.withValue(value);
 105         b.withAttributes(attributes);
 106         return withChild(b.build());
 107     }
 108
 109     @Override
 110     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value) {
 111         return withChildValue(value, Collections.emptyMap());
 112     }
 113
 114     protected static final class ImmutableOrderedLeafSetNode<T> extends
 115             AbstractImmutableNormalizedNode<NodeIdentifier, Collection<LeafSetEntryNode<T>>> implements
 116             Immutable, OrderedLeafSetNode<T> {
 117
 118         private final Map<NodeWithValue, LeafSetEntryNode<T>> children;
 119
 120         ImmutableOrderedLeafSetNode(final NodeIdentifier nodeIdentifier,
 121                 final Map<NodeWithValue, LeafSetEntryNode<T>> children) {
 122             super(nodeIdentifier);
 123             this.children = children;
 124         }
 125
 126         @Override
 127         public Optional<LeafSetEntryNode<T>> getChild(final NodeWithValue child) {
 128             return Optional.ofNullable(children.get(child));
 129         }
 130
 131         @Override
 132         public LeafSetEntryNode<T> getChild(final int position) {
 133             return Iterables.get(children.values(), position);
 134         }
 135
 136         @Override
 137         protected int valueHashCode() {
 138             return children.hashCode();
 139         }
 140
 141         private Map<NodeWithValue, LeafSetEntryNode<T>> getChildren() {
 142             return Collections.unmodifiableMap(children);
 143         }
 144
 145         @Override
 146         protected boolean valueEquals(final AbstractImmutableNormalizedNode<?, ?> other) {
 147             return children.equals(((ImmutableOrderedLeafSetNode<?>) other).children);
 148         }
 149
 150         @Override
 151         public int getSize() {
 152             return children.size();
 153         }
 154
 155         @Override
 156         public Collection<LeafSetEntryNode<T>> getValue() {
 157             return UnmodifiableCollection.create(children.values());
 158         }
 159     }
 160
 161     @Override
 162     public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>> addChild(
 163             final LeafSetEntryNode<T> child) {
 164         return withChild(child);
 165     }
 166
 167     @Override
 168     public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>>
 169             removeChild(final PathArgument key) {
 170         return withoutChild(key);
 171     }
 172 }