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.util.construction;
  
  import java.util.Map;
  import org.apache.beam.sdk.runners.AppliedPTransform;
  import org.apache.beam.sdk.runners.PTransformOverrideFactory;
  import org.apache.beam.sdk.transforms.PTransform;
  import org.apache.beam.sdk.values.PCollection;
  import org.apache.beam.sdk.values.PInput;
  import org.apache.beam.sdk.values.POutput;
  import org.apache.beam.sdk.values.TupleTag;
  
  /**
   * A {@link PTransformOverrideFactory} that throws an exception when a call to {@link
   * #getReplacementTransform(AppliedPTransform)} is made. This is for {@link PTransform PTransforms}
   * which are not supported by a runner.
   */
  public final class UnsupportedOverrideFactory<
          InputT extends PInput,
          OutputT extends POutput,
          TransformT extends PTransform<InputT, OutputT>>
      implements PTransformOverrideFactory<InputT, OutputT, TransformT> {
  
    private final String message;
  
    @SuppressWarnings("rawtypes")
    public static <
            InputT extends PInput,
            OutputT extends POutput,
            TransformT extends PTransform<InputT, OutputT>>
        UnsupportedOverrideFactory<InputT, OutputT, TransformT> withMessage(String message) {
      return new UnsupportedOverrideFactory<>(message);
    }
  
    private UnsupportedOverrideFactory(String message) {
      this.message = message;
    }
  
    @Override
    public PTransformReplacement<InputT, OutputT> getReplacementTransform(
        AppliedPTransform<InputT, OutputT, TransformT> transform) {
      throw new UnsupportedOperationException(message);
    }
  
    @Override
    public Map<PCollection<?>, ReplacementOutput> mapOutputs(
        Map<TupleTag<?>, PCollection<?>> outputs, OutputT newOutput) {
      throw new UnsupportedOperationException(message);
    }
  }
  