samza-api/src/main/java/org/apache/samza/serializers/NoOpSerde.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.samza.serializers;

import org.apache.samza.SamzaException;

/**
 * A marker serde class to indicate that messages should not be serialized or deserialized. This is the same behavior as
 * when no serde is provided, and is intended for use cases where a Serde parameter or configuration is required. This
 * is different than ByteSerde which is a pass-through serde for byte arrays.
 *
 * @param <T> type of messages which should not be serialized or deserialized
 */
public class NoOpSerde<T> implements Serde<T> {

  public T fromBytes(byte[] bytes) {
    throw new SamzaException("NoOpSerde fromBytes should not be invoked by the framework.");
  }


  public byte[] toBytes(T obj) {
    throw new SamzaException("NoOpSerde toBytes should not be invoked by the framework.");
  }
}