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.runners.dataflow.util;
  
  import static org.apache.beam.vendor.guava.v32_1_2_jre.com.google.common.base.Preconditions.checkArgument;
  
  import java.io.Serializable;
  import org.apache.beam.sdk.coders.SerializableCoder;
  import org.apache.beam.sdk.util.construction.SdkComponents;
  
  /** A {@link CloudObjectTranslator} for {@link SerializableCoder}. */
  @SuppressWarnings({
    "rawtypes" // TODO(https://github.com/apache/beam/issues/20447)
  })
  class SerializableCoderCloudObjectTranslator implements CloudObjectTranslator<SerializableCoder> {
    private static final String TYPE_FIELD = "type";
  
    @Override
    public CloudObject toCloudObject(SerializableCoder target, SdkComponents sdkComponents) {
      CloudObject base = CloudObject.forClass(SerializableCoder.class);
      Structs.addString(base, TYPE_FIELD, target.getRecordType().getName());
      return base;
    }
  
    @Override
    public SerializableCoder<?> fromCloudObject(CloudObject cloudObject) {
      String className = Structs.getString(cloudObject, TYPE_FIELD);
      try {
        Class<? extends Serializable> targetClass =
            (Class<? extends Serializable>)
                Class.forName(className, false, Thread.currentThread().getContextClassLoader());
        checkArgument(
            Serializable.class.isAssignableFrom(targetClass),
            "Target class %s does not extend %s",
            targetClass.getName(),
            Serializable.class.getSimpleName());
        return SerializableCoder.of(targetClass);
      } catch (ClassNotFoundException e) {
        throw new IllegalArgumentException(e);
      }
    }
  
    @Override
    public Class<SerializableCoder> getSupportedClass() {
      return SerializableCoder.class;
    }
  
    @Override
    public String cloudObjectClassName() {
      return CloudObject.forClass(SerializableCoder.class).getClassName();
    }
  }
  