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.flink.translation.utils;
  
  import org.apache.beam.model.pipeline.v1.RunnerApi;
  import org.apache.beam.sdk.util.construction.PTransformTranslation;
  import org.apache.beam.vendor.grpc.v1p69p0.com.google.protobuf.InvalidProtocolBufferException;
  
  /**
   * Various utilies related to portability. Helps share code between portable batch and streaming
   * translator.
   */
  public class FlinkPortableRunnerUtils {
  
    public static boolean requiresTimeSortedInput(
        RunnerApi.ExecutableStagePayload payload, boolean streaming) {
  
      boolean requiresTimeSortedInput =
          payload.getComponents().getTransformsMap().values().stream()
              .filter(t -> t.getSpec().getUrn().equals(PTransformTranslation.PAR_DO_TRANSFORM_URN))
              .anyMatch(
                  t -> {
                    try {
                      return RunnerApi.ParDoPayload.parseFrom(t.getSpec().getPayload())
                          .getRequiresTimeSortedInput();
                    } catch (InvalidProtocolBufferException e) {
                      throw new RuntimeException(e);
                    }
                  });
  
      if (streaming && requiresTimeSortedInput) {
        // until https://issues.apache.org/jira/browse/BEAM-8460 is resolved, we must
        // throw UnsupportedOperationException here to prevent data loss.
        throw new UnsupportedOperationException(
            "https://issues.apache.org/jira/browse/BEAM-8460 blocks this feature for now.");
      }
  
      return requiresTimeSortedInput;
    }
  
    public static boolean requiresStableInput(RunnerApi.ExecutableStagePayload payload) {
  
      return payload.getComponents().getTransformsMap().values().stream()
          .filter(t -> t.getSpec().getUrn().equals(PTransformTranslation.PAR_DO_TRANSFORM_URN))
          .anyMatch(
              t -> {
                try {
                  return RunnerApi.ParDoPayload.parseFrom(t.getSpec().getPayload())
                      .getRequiresStableInput();
                } catch (InvalidProtocolBufferException e) {
                  throw new RuntimeException(e);
                }
              });
    }
  
    /** Do not construct. */
    private FlinkPortableRunnerUtils() {}
  }
  