statefun-flink/statefun-flink-core/src/main/java/org/apache/flink/statefun/flink/core/message/MessagePayloadSerializerRaw.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.flink.statefun.flink.core.message;

import com.google.protobuf.ByteString;
import javax.annotation.Nonnull;
import javax.annotation.concurrent.NotThreadSafe;
import org.apache.flink.statefun.flink.core.generated.Payload;

@NotThreadSafe
public class MessagePayloadSerializerRaw implements MessagePayloadSerializer {

  @Override
  public Object deserialize(@Nonnull ClassLoader targetClassLoader, @Nonnull Payload payload) {
    return payload.getPayloadBytes().toByteArray();
  }

  @Override
  public Payload serialize(@Nonnull Object what) {
    byte[] bytes = (byte[]) what;
    ByteString bs = ByteString.copyFrom(bytes);
    return Payload.newBuilder().setPayloadBytes(bs).build();
  }

  @Override
  public Object copy(@Nonnull ClassLoader targetClassLoader, @Nonnull Object what) {
    return what;
  }
}