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

   1 /*
   2  * Copyright (c) 2019 PANTHEON.tech, s.r.o. 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;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.collect.Interner;
  13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  14 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
  15
  16 final class InterningLeafNodeBuilder<T> implements LeafNode.Builder<T> {
  17     private final Interner<LeafNode<T>> interner;
  18     private final LeafNode.Builder<T> delegate;
  19
  20     InterningLeafNodeBuilder(final LeafNode.Builder<T> delegate, final Interner<LeafNode<T>> interner) {
  21         this.delegate = requireNonNull(delegate);
  22         this.interner = requireNonNull(interner);
  23     }
  24
  25     @Override
  26     public LeafNode.Builder<T> withValue(final T value) {
  27         delegate.withValue(value);
  28         return this;
  29     }
  30
  31     @Override
  32     public LeafNode.Builder<T> withNodeIdentifier(final NodeIdentifier nodeIdentifier) {
  33         delegate.withNodeIdentifier(nodeIdentifier);
  34         return this;
  35     }
  36
  37     @Override
  38     public LeafNode<T> build() {
  39         return interner.intern(delegate.build());
  40     }
  41 }