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 java.util.Collections;
  11 import java.util.LinkedHashMap;
  12 import java.util.List;
  13 import java.util.Map;
  14
  15 import org.opendaylight.yangtools.concepts.Immutable;
  16 import org.opendaylight.yangtools.yang.common.QName;
  17 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  18 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.NodeIdentifier;
  19 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier.PathArgument;
  20 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetEntryNode;
  21 import org.opendaylight.yangtools.yang.data.api.schema.LeafSetNode;
  22 import org.opendaylight.yangtools.yang.data.api.schema.OrderedLeafSetNode;
  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
  27 import com.google.common.base.Optional;
  28 import com.google.common.collect.Iterables;
  29
  30 public class ImmutableOrderedLeafSetNodeBuilder<T> implements ListNodeBuilder<T, LeafSetEntryNode<T>> {
  31
  32     private Map<InstanceIdentifier.NodeWithValue, LeafSetEntryNode<T>> value;
  33     private InstanceIdentifier.NodeIdentifier nodeIdentifier;
  34     private boolean dirty;
  35
  36     protected ImmutableOrderedLeafSetNodeBuilder() {
  37         value = new LinkedHashMap<>();
  38         dirty = false;
  39     }
  40
  41     protected ImmutableOrderedLeafSetNodeBuilder(final ImmutableOrderedLeafSetNode<T> node) {
  42         nodeIdentifier = node.getIdentifier();
  43         value = node.getChildren();
  44         dirty = true;
  45     }
  46
  47     public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create() {
  48         return new ImmutableOrderedLeafSetNodeBuilder<>();
  49     }
  50
  51     public static <T> ListNodeBuilder<T, LeafSetEntryNode<T>> create(final LeafSetNode<T> node) {
  52         if (!(node instanceof ImmutableOrderedLeafSetNode<?>)) {
  53             throw new UnsupportedOperationException(String.format("Cannot initialize from class %s", node.getClass()));
  54         }
  55
  56         return new ImmutableOrderedLeafSetNodeBuilder<T>((ImmutableOrderedLeafSetNode<T>) node);
  57     }
  58
  59     private void checkDirty() {
  60         if (dirty) {
  61             value = new LinkedHashMap<>(value);
  62             dirty = false;
  63         }
  64     }
  65
  66     @Override
  67     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChild(final LeafSetEntryNode<T> child) {
  68         checkDirty();
  69         this.value.put(child.getIdentifier(), child);
  70         return this;
  71     }
  72
  73     @Override
  74     public ListNodeBuilder<T, LeafSetEntryNode<T>> withoutChild(final PathArgument key) {
  75         checkDirty();
  76         this.value.remove(key);
  77         return this;
  78     }
  79
  80     @Override
  81     public OrderedLeafSetNode<T> build() {
  82         dirty = true;
  83         return new ImmutableOrderedLeafSetNode<>(nodeIdentifier, value);
  84     }
  85
  86     @Override
  87     public ListNodeBuilder<T, LeafSetEntryNode<T>> withNodeIdentifier(
  88             final InstanceIdentifier.NodeIdentifier nodeIdentifier) {
  89         this.nodeIdentifier = nodeIdentifier;
  90         return this;
  91     }
  92
  93     @Override
  94     public ListNodeBuilder<T, LeafSetEntryNode<T>> withValue(final List<LeafSetEntryNode<T>> value) {
  95         checkDirty();
  96         for (final LeafSetEntryNode<T> leafSetEntry : value) {
  97             withChild(leafSetEntry);
  98         }
  99         return this;
 100     }
 101
 102
 103     @Override
 104     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value, final Map<QName, String> attributes) {
 105         final ImmutableLeafSetEntryNodeBuilder<T> b = ImmutableLeafSetEntryNodeBuilder.create();
 106         b.withNodeIdentifier(new InstanceIdentifier.NodeWithValue(nodeIdentifier.getNodeType(), value));
 107         b.withValue(value);
 108         b.withAttributes(attributes);
 109         return withChild(b.build());
 110     }
 111
 112     @Override
 113     public ListNodeBuilder<T, LeafSetEntryNode<T>> withChildValue(final T value) {
 114         return withChildValue(value, Collections.<QName,String>emptyMap());
 115     }
 116
 117     protected final static class ImmutableOrderedLeafSetNode<T> extends
 118             AbstractImmutableNormalizedNode<InstanceIdentifier.NodeIdentifier, Iterable<LeafSetEntryNode<T>>> implements
 119             Immutable, OrderedLeafSetNode<T> {
 120
 121         private final Map<InstanceIdentifier.NodeWithValue, LeafSetEntryNode<T>> children;
 122
 123         ImmutableOrderedLeafSetNode(final InstanceIdentifier.NodeIdentifier nodeIdentifier,
 124                 final Map<InstanceIdentifier.NodeWithValue, LeafSetEntryNode<T>> children) {
 125             super(nodeIdentifier);
 126             this.children = children;
 127         }
 128
 129         @Override
 130         public Optional<LeafSetEntryNode<T>> getChild(final InstanceIdentifier.NodeWithValue child) {
 131             return Optional.fromNullable(children.get(child));
 132         }
 133
 134         @Override
 135         protected int valueHashCode() {
 136             return children.hashCode();
 137         }
 138
 139         private Map<InstanceIdentifier.NodeWithValue, LeafSetEntryNode<T>> getChildren() {
 140             return Collections.unmodifiableMap(children);
 141         }
 142
 143         @Override
 144         protected boolean valueEquals(final AbstractImmutableNormalizedNode<?, ?> other) {
 145             return children.equals(((ImmutableOrderedLeafSetNode<?>) other).children);
 146         }
 147
 148         @Override
 149         public LeafSetEntryNode<T> getChild(final int position) {
 150             return Iterables.get(getValue(), position);
 151         }
 152
 153         @Override
 154         public int getSize() {
 155             // TODO Auto-generated method stub
 156             return 0;
 157         }
 158
 159                 @Override
 160                 public Iterable<LeafSetEntryNode<T>> getValue() {
 161                         return Iterables.unmodifiableIterable(children.values());
 162                 }
 163     }
 164
 165     @Override
 166     public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>> addChild(
 167             final LeafSetEntryNode<T> child) {
 168         return withChild(child);
 169     }
 170
 171     @Override
 172     public NormalizedNodeContainerBuilder<NodeIdentifier, PathArgument, LeafSetEntryNode<T>, LeafSetNode<T>> removeChild(
 173             final PathArgument key) {
 174         return withoutChild(key);
 175     }
 176
 177 }