| /* |
| * 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.samza.util; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.stream.Collectors; |
| import org.apache.samza.SamzaException; |
| import org.apache.samza.config.MetricsConfig; |
| import org.apache.samza.metrics.MetricsReporter; |
| import org.apache.samza.metrics.MetricsReporterFactory; |
| |
| |
| /** |
| * Helper class that instantiates the MetricsReporter. |
| */ |
| public class MetricsReporterLoader { |
| |
| private MetricsReporterLoader() { |
| } |
| |
| public static Map<String, MetricsReporter> getMetricsReporters(MetricsConfig metricsConfig, String containerName) { |
| Map<String, MetricsReporter> metricsReporters = new HashMap<>(); |
| |
| String diagnosticsReporterName = MetricsConfig.METRICS_SNAPSHOT_REPORTER_NAME_FOR_DIAGNOSTICS; |
| |
| // Exclude creation of diagnostics-reporter, because it is created manually in SamzaContainer (to allow sharing of |
| // sysProducer between reporter and diagnosticsManager |
| List<String> metricsReporterNames = metricsConfig.getMetricReporterNames() |
| .stream() |
| .filter(reporterName -> !reporterName.equals(diagnosticsReporterName)) |
| .collect(Collectors.toList()); |
| |
| for (String metricsReporterName : metricsReporterNames) { |
| String metricsFactoryClassName = metricsConfig.getMetricsFactoryClass(metricsReporterName) |
| .orElseThrow(() -> new SamzaException( |
| String.format("Metrics reporter %s missing .class config", metricsReporterName))); |
| MetricsReporterFactory metricsReporterFactory = |
| ReflectionUtil.getObj(metricsFactoryClassName, MetricsReporterFactory.class); |
| metricsReporters.put(metricsReporterName, |
| metricsReporterFactory.getMetricsReporter(metricsReporterName, |
| containerName, |
| metricsConfig)); |
| } |
| return metricsReporters; |
| } |
| } |