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,
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   * See the License for the specific language governing permissions and
   * limitations under the License.
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  package org.apache.beam.sdk.extensions.avro.coders;
  
  import java.util.concurrent.ExecutionException;
  import org.apache.avro.Schema;
  import org.apache.avro.generic.GenericRecord;
  import org.apache.beam.sdk.extensions.avro.io.AvroDatumFactory;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.cache.Cache;
  import org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.cache.CacheBuilder;
  
  /** AvroCoder specialisation for GenericRecord, needed for cross-language transforms. */
  public class AvroGenericCoder extends AvroCoder<GenericRecord> {
    private static final Cache<Schema, AvroGenericCoder> AVRO_GENERIC_CODER_CACHE =
        CacheBuilder.newBuilder().weakValues().build();
  
    AvroGenericCoder(Schema schema) {
      super(AvroDatumFactory.GenericDatumFactory.INSTANCE, schema);
    }
  
    public static AvroGenericCoder of(Schema schema) {
      try {
        return AVRO_GENERIC_CODER_CACHE.get(schema, () -> new AvroGenericCoder(schema));
      } catch (ExecutionException e) {
        throw new RuntimeException(e);
      }
    }
  }
  