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.beam.sdk.extensions.avro;
  
  import java.nio.charset.StandardCharsets;
  import java.util.Collections;
  import java.util.List;
  import org.apache.avro.Schema;
  import org.apache.beam.sdk.coders.Coder;
  import org.apache.beam.sdk.extensions.avro.coders.AvroGenericCoder;
  import org.apache.beam.sdk.util.construction.CoderTranslation.TranslationContext;
  import org.apache.beam.sdk.util.construction.CoderTranslator;
  
  /** Coder translator for AvroGenericCoder. */
  public class AvroGenericCoderTranslator implements CoderTranslator<AvroGenericCoder> {
    @Override
    public List<? extends Coder<?>> getComponents(AvroGenericCoder from) {
      return Collections.emptyList();
    }
  
    @Override
    public byte[] getPayload(AvroGenericCoder from) {
      return from.getSchema().toString().getBytes(StandardCharsets.UTF_8);
    }
  
    @Override
    public AvroGenericCoder fromComponents(
        List<Coder<?>> components, byte[] payload, TranslationContext context) {
      Schema schema = new Schema.Parser().parse(new String(payload, StandardCharsets.UTF_8));
      return AvroGenericCoder.of(schema);
    }
  }
  