// Copyright 2018 The Bazel Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.devtools.build.lib.skyframe.serialization;

import com.google.protobuf.CodedInputStream;
import com.google.protobuf.CodedOutputStream;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicReference;

/** {@link ObjectCodec} for {@link AtomicReference}. */
public class AtomicReferenceCodec<V> implements ObjectCodec<AtomicReference<V>> {
  @SuppressWarnings("unchecked")
  @Override
  public Class<AtomicReference<V>> getEncodedClass() {
    return (Class<AtomicReference<V>>) (Class<?>) AtomicReference.class;
  }

  @Override
  public void serialize(
      SerializationContext context, AtomicReference<V> obj, CodedOutputStream codedOut)
      throws SerializationException, IOException {
    context.serialize(obj.get(), codedOut);
  }

  @Override
  public AtomicReference<V> deserialize(DeserializationContext context, CodedInputStream codedIn)
      throws SerializationException, IOException {
    return new AtomicReference<>(context.deserialize(codedIn));
  }
}