| /* |
| * 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.aggregators.metrics.sink; |
| |
| import com.codahale.metrics.Gauge; |
| import com.codahale.metrics.MetricFilter; |
| import com.codahale.metrics.MetricRegistry; |
| import java.util.Collection; |
| import java.util.Properties; |
| import org.apache.beam.runners.spark.metrics.WithMetricsSupport; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Iterables; |
| import org.apache.spark.metrics.sink.Sink; |
| |
| /** An in-memory {@link Sink} implementation for tests. */ |
| public class InMemoryMetrics implements Sink { |
| |
| private static WithMetricsSupport extendedMetricsRegistry; |
| private static MetricRegistry internalMetricRegistry; |
| |
| // Constructor for Spark 3.1 |
| @SuppressWarnings("UnusedParameters") |
| public InMemoryMetrics( |
| final Properties properties, |
| final MetricRegistry metricRegistry, |
| final org.apache.spark.SecurityManager securityMgr) { |
| extendedMetricsRegistry = WithMetricsSupport.forRegistry(metricRegistry); |
| internalMetricRegistry = metricRegistry; |
| } |
| |
| // Constructor for Spark >= 3.2 |
| @SuppressWarnings("UnusedParameters") |
| public InMemoryMetrics(final Properties properties, final MetricRegistry metricRegistry) { |
| extendedMetricsRegistry = WithMetricsSupport.forRegistry(metricRegistry); |
| internalMetricRegistry = metricRegistry; |
| } |
| |
| @SuppressWarnings({"TypeParameterUnusedInFormals", "rawtypes"}) |
| public static <T> T valueOf(final String name) { |
| // this might fail in case we have multiple aggregators with the same suffix after |
| // the last dot, but it should be good enough for tests. |
| if (extendedMetricsRegistry != null) { |
| Collection<Gauge> matches = |
| extendedMetricsRegistry.getGauges((n, m) -> n.endsWith(name)).values(); |
| return matches.isEmpty() ? null : (T) Iterables.getOnlyElement(matches).getValue(); |
| } else { |
| return null; |
| } |
| } |
| |
| @SuppressWarnings("WeakerAccess") |
| public static void clearAll() { |
| if (internalMetricRegistry != null) { |
| internalMetricRegistry.removeMatching(MetricFilter.ALL); |
| } |
| } |
| |
| @Override |
| public void start() {} |
| |
| @Override |
| public void stop() {} |
| |
| @Override |
| public void report() {} |
| } |