001/* 002 * Copyright 2012-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.boot.actuate.autoconfigure.metrics.web.client; 018 019import io.micrometer.core.instrument.MeterRegistry; 020import io.micrometer.core.instrument.config.MeterFilter; 021 022import org.springframework.boot.actuate.autoconfigure.metrics.MetricsAutoConfiguration; 023import org.springframework.boot.actuate.autoconfigure.metrics.MetricsProperties; 024import org.springframework.boot.actuate.autoconfigure.metrics.OnlyOnceLoggingDenyMeterFilter; 025import org.springframework.boot.actuate.autoconfigure.metrics.export.simple.SimpleMetricsExportAutoConfiguration; 026import org.springframework.boot.autoconfigure.AutoConfigureAfter; 027import org.springframework.boot.autoconfigure.EnableAutoConfiguration; 028import org.springframework.boot.autoconfigure.condition.ConditionalOnBean; 029import org.springframework.boot.autoconfigure.condition.ConditionalOnClass; 030import org.springframework.context.annotation.Bean; 031import org.springframework.context.annotation.Configuration; 032import org.springframework.context.annotation.Import; 033import org.springframework.core.annotation.Order; 034 035/** 036 * {@link EnableAutoConfiguration Auto-configuration} for HTTP client-related metrics. 037 * 038 * @author Jon Schneider 039 * @author Phillip Webb 040 * @author Stephane Nicoll 041 * @since 2.1.0 042 */ 043@Configuration 044@AutoConfigureAfter({ MetricsAutoConfiguration.class, 045 SimpleMetricsExportAutoConfiguration.class }) 046@ConditionalOnClass(MeterRegistry.class) 047@ConditionalOnBean(MeterRegistry.class) 048@Import({ RestTemplateMetricsConfiguration.class, WebClientMetricsConfiguration.class }) 049public class HttpClientMetricsAutoConfiguration { 050 051 private final MetricsProperties properties; 052 053 public HttpClientMetricsAutoConfiguration(MetricsProperties properties) { 054 this.properties = properties; 055 } 056 057 @Bean 058 @Order(0) 059 public MeterFilter metricsHttpClientUriTagFilter() { 060 String metricName = this.properties.getWeb().getClient().getRequestsMetricName(); 061 MeterFilter denyFilter = new OnlyOnceLoggingDenyMeterFilter(() -> String 062 .format("Reached the maximum number of URI tags for '%s'. Are you using " 063 + "'uriVariables'?", metricName)); 064 return MeterFilter.maximumAllowableTags(metricName, "uri", 065 this.properties.getWeb().getClient().getMaxUriTags(), denyFilter); 066 } 067 068}