| /* |
| * 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.spark.structuredstreaming.aggregators.metrics.sink; |
| |
| import static org.hamcrest.MatcherAssert.assertThat; |
| import static org.hamcrest.Matchers.is; |
| import static org.hamcrest.Matchers.nullValue; |
| |
| import org.apache.beam.runners.spark.structuredstreaming.SparkSessionRule; |
| import org.apache.beam.runners.spark.structuredstreaming.examples.WordCount; |
| import org.apache.beam.sdk.coders.StringUtf8Coder; |
| import org.apache.beam.sdk.testing.PAssert; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.transforms.Create; |
| import org.apache.beam.sdk.transforms.MapElements; |
| import org.apache.beam.sdk.values.KV; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableSet; |
| import org.junit.ClassRule; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExternalResource; |
| |
| /** A test that verifies Beam metrics are reported to Spark's metrics sink in batch mode. */ |
| public class SparkMetricsSinkTest { |
| |
| @ClassRule |
| public static final SparkSessionRule SESSION = |
| new SparkSessionRule( |
| KV.of("spark.metrics.conf.*.sink.memory.class", InMemoryMetrics.class.getName())); |
| |
| @Rule public final ExternalResource inMemoryMetricsSink = new InMemoryMetricsSinkRule(); |
| |
| @Rule |
| public final TestPipeline pipeline = TestPipeline.fromOptions(SESSION.createPipelineOptions()); |
| |
| private static final ImmutableList<String> WORDS = |
| ImmutableList.of("hi there", "hi", "hi sue bob", "hi sue", "", "bob hi"); |
| private static final ImmutableSet<String> EXPECTED_COUNTS = |
| ImmutableSet.of("hi: 5", "there: 1", "sue: 2", "bob: 2"); |
| |
| @Test |
| public void testInBatchMode() throws Exception { |
| assertThat(InMemoryMetrics.valueOf("emptyLines"), is(nullValue())); |
| |
| final PCollection<String> output = |
| pipeline |
| .apply(Create.of(WORDS).withCoder(StringUtf8Coder.of())) |
| .apply(new WordCount.CountWords()) |
| .apply(MapElements.via(new WordCount.FormatAsTextFn())); |
| |
| PAssert.that(output).containsInAnyOrder(EXPECTED_COUNTS); |
| pipeline.run(); |
| |
| assertThat(InMemoryMetrics.valueOf("emptyLines"), is(1d)); |
| } |
| } |