content: /*
   * 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.camel.component.kafka.integration;
  
  import java.math.BigInteger;
  
  import org.apache.camel.component.kafka.serde.DefaultKafkaHeaderDeserializer;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  public class CustomHeaderDeserializer extends DefaultKafkaHeaderDeserializer {
      private static final Logger LOG = LoggerFactory.getLogger(CustomHeaderDeserializer.class);
  
      @Override
      public Object deserialize(String key, byte[] value) {
          if (key.equals("id")) {
              BigInteger bi = new BigInteger(value);
              LOG.debug("Converted the header {} to {} via custom serializer", key, bi.longValue());
  
              return String.valueOf(bi.longValue());
          } else {
              return super.deserialize(key, value);
          }
      }
  }
  