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.prism;
  
  import static org.apache.beam.sdk.util.Preconditions.checkStateNotNull;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  import java.util.function.Supplier;
  import org.apache.beam.sdk.Pipeline;
  import org.apache.beam.sdk.PipelineResult;
  import org.apache.beam.sdk.PipelineRunner;
  import org.apache.beam.sdk.options.PipelineOptions;
  import org.hamcrest.Matchers;
  import org.joda.time.Duration;
  
  /**
   * {@link TestPrismRunner} is the recommended {@link PipelineRunner} to use for tests that rely on
   * <a href="https://github.com/apache/beam/tree/master/sdks/go/cmd/prism">sdks/go/cmd/prism</a>. See
   * {@link PrismRunner} for more details.
   */
  public class TestPrismRunner extends PipelineRunner<PipelineResult> {
  
    private final PrismRunner internal;
    private final TestPrismPipelineOptions prismPipelineOptions;
  
    /**
     * Invoked from {@link Pipeline#run} where {@link TestPrismRunner} instantiates using {@link
     * TestPrismPipelineOptions} configuration details.
     */
    public static TestPrismRunner fromOptions(PipelineOptions options) {
      TestPrismPipelineOptions prismPipelineOptions = options.as(TestPrismPipelineOptions.class);
      PrismRunner delegate = PrismRunner.fromOptions(options);
      return new TestPrismRunner(delegate, prismPipelineOptions);
    }
  
    private TestPrismRunner(PrismRunner internal, TestPrismPipelineOptions options) {
      this.internal = internal;
      this.prismPipelineOptions = options;
    }
  
    TestPrismPipelineOptions getTestPrismPipelineOptions() {
      return prismPipelineOptions;
    }
  
    @Override
    public PipelineResult run(Pipeline pipeline) {
      PrismPipelineResult result = (PrismPipelineResult) internal.run(pipeline);
      try {
        PipelineResult.State state = getWaitUntilFinishRunnable(result).get();
        assertThat(
            "Pipeline did not succeed. Check Prism logs for further details.",
            state,
            Matchers.is(PipelineResult.State.DONE));
      } catch (RuntimeException e) {
        // This is a temporary workaround to close the Prism process.
        result.getCleanup().run();
        throw new AssertionError(e);
      }
      return result;
    }
  
    private Supplier<PipelineResult.State> getWaitUntilFinishRunnable(PipelineResult result) {
      if (prismPipelineOptions.getTestTimeoutSeconds() != null) {
        Long testTimeoutSeconds = checkStateNotNull(prismPipelineOptions.getTestTimeoutSeconds());
        return () -> result.waitUntilFinish(Duration.standardSeconds(testTimeoutSeconds));
      }
      return result::waitUntilFinish;
    }
  }
  