| /* |
| * 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.runners; |
| |
| import static org.apache.beam.sdk.metrics.MetricResultsMatchers.metricsResult; |
| import static org.hamcrest.Matchers.hasItem; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| |
| import org.apache.beam.sdk.PipelineResult; |
| import org.apache.beam.sdk.PipelineRunner; |
| import org.apache.beam.sdk.metrics.Counter; |
| import org.apache.beam.sdk.metrics.MetricNameFilter; |
| import org.apache.beam.sdk.metrics.Metrics; |
| import org.apache.beam.sdk.metrics.MetricsFilter; |
| import org.apache.beam.sdk.options.PipelineOptions; |
| import org.apache.beam.sdk.options.PipelineOptionsFactory; |
| import org.apache.beam.sdk.testing.CrashingRunner; |
| import org.apache.beam.sdk.testing.NeedsRunner; |
| import org.apache.beam.sdk.testing.PAssert; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.testing.UsesCounterMetrics; |
| import org.apache.beam.sdk.transforms.Create; |
| import org.apache.beam.sdk.transforms.MapElements; |
| import org.apache.beam.sdk.transforms.PTransform; |
| import org.apache.beam.sdk.transforms.SimpleFunction; |
| import org.apache.beam.sdk.values.PBegin; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.sdk.values.POutput; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link PipelineRunner}. */ |
| @RunWith(JUnit4.class) |
| public class PipelineRunnerTest { |
| |
| @Rule public final transient TestPipeline p = TestPipeline.create(); |
| |
| @Test |
| public void testInstantiation() { |
| PipelineOptions options = PipelineOptionsFactory.create(); |
| options.setRunner(CrashingRunner.class); |
| PipelineRunner<?> runner = PipelineRunner.fromOptions(options); |
| assertTrue(runner instanceof CrashingRunner); |
| } |
| |
| private static class ScaleFn<T extends Number> extends SimpleFunction<T, Double> { |
| |
| private final double scalar; |
| private final Counter counter; |
| |
| public ScaleFn(double scalar, Counter counter) { |
| this.scalar = scalar; |
| this.counter = counter; |
| } |
| |
| @Override |
| public Double apply(T input) { |
| counter.inc(); |
| return scalar * input.doubleValue(); |
| } |
| } |
| |
| @Test |
| @Category({NeedsRunner.class, UsesCounterMetrics.class}) |
| public void testRunPTransform() { |
| final String namespace = PipelineRunnerTest.class.getName(); |
| final Counter counter = Metrics.counter(namespace, "count"); |
| final PipelineResult result = |
| PipelineRunner.fromOptions(p.getOptions()) |
| .run( |
| new PTransform<PBegin, POutput>() { |
| @Override |
| public POutput expand(PBegin input) { |
| PCollection<Double> output = |
| input |
| .apply(Create.of(1, 2, 3, 4)) |
| .apply("ScaleByTwo", MapElements.via(new ScaleFn<>(2.0, counter))); |
| PAssert.that(output).containsInAnyOrder(2.0, 4.0, 6.0, 8.0); |
| return output; |
| } |
| }); |
| |
| // Checking counters to verify the pipeline actually ran. |
| assertThat( |
| result |
| .metrics() |
| .queryMetrics( |
| MetricsFilter.builder() |
| .addNameFilter(MetricNameFilter.inNamespace(namespace)) |
| .build()) |
| .getCounters(), |
| hasItem(metricsResult(namespace, "count", "ScaleByTwo", 4L, true))); |
| } |
| } |