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.loadtests;
  
  import java.io.IOException;
  import java.util.List;
  import java.util.Optional;
  import org.apache.beam.sdk.PipelineResult;
  import org.apache.beam.sdk.testutils.NamedTestResult;
  import org.joda.time.Duration;
  
  /** Class for detecting failures after {@link PipelineResult#waitUntilFinish(Duration)} unblocks. */
  class JobFailure {
  
    private String cause;
  
    private boolean requiresCancelling;
  
    JobFailure(String cause, boolean requiresCancelling) {
      this.cause = cause;
      this.requiresCancelling = requiresCancelling;
    }
  
    static void handleFailure(
        final PipelineResult pipelineResult, final List<NamedTestResult> testResults)
        throws IOException {
      Optional<JobFailure> failure = lookForFailure(pipelineResult, testResults);
  
      if (failure.isPresent()) {
        JobFailure jobFailure = failure.get();
  
        if (jobFailure.requiresCancelling) {
          pipelineResult.cancel();
        }
  
        throw new RuntimeException(jobFailure.cause);
      }
    }
  
    private static Optional<JobFailure> lookForFailure(
        PipelineResult pipelineResult, List<NamedTestResult> testResults) {
      PipelineResult.State state = pipelineResult.getState();
  
      Optional<JobFailure> stateRelatedFailure = lookForInvalidState(state);
  
      if (stateRelatedFailure.isPresent()) {
        return stateRelatedFailure;
      } else {
        return lookForMetricResultFailure(testResults);
      }
    }
  
    private static Optional<JobFailure> lookForMetricResultFailure(
        List<NamedTestResult> testResults) {
  
      boolean isTestResultInvalid =
          testResults.stream().anyMatch(namedTestResult -> namedTestResult.getValue() == -1D);
  
      if (isTestResultInvalid) {
        return Optional.of(new JobFailure("Invalid test results", false));
      } else {
        return Optional.empty();
      }
    }
  
    private static Optional<JobFailure> lookForInvalidState(PipelineResult.State state) {
      switch (state) {
        case RUNNING:
        case UNKNOWN:
          return Optional.of(new JobFailure("Job timeout.", true));
  
        case CANCELLED:
        case FAILED:
        case STOPPED:
        case UPDATED:
          return Optional.of(
              new JobFailure(String.format("Invalid job state: %s.", state.toString()), false));
  
        default:
          return Optional.empty();
      }
    }
  }
  