/* * Copyright 2013-2019 the original author or authors. * * Licensed 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 * * https://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.springframework.cloud.gateway.support.tagsprovider; import io.micrometer.core.instrument.Tags; import org.springframework.http.HttpStatus; import org.springframework.http.server.reactive.AbstractServerHttpResponse; import org.springframework.web.server.ServerWebExchange; /** * @author Ingyu Hwang */ public class GatewayHttpTagsProvider implements GatewayTagsProvider { @Override public Tags apply(ServerWebExchange exchange) { String outcome = "CUSTOM"; String status = "CUSTOM"; String httpStatusCodeStr = "NA"; String httpMethod = exchange.getRequest().getMethodValue(); // a non standard HTTPS status could be used. Let's be defensive here // it needs to be checked for first, otherwise the delegate response // who's status DIDN'T change, will be used if (exchange.getResponse() instanceof AbstractServerHttpResponse) { Integer statusInt = ((AbstractServerHttpResponse) exchange.getResponse()) .getStatusCodeValue(); if (statusInt != null) { status = String.valueOf(statusInt); httpStatusCodeStr = status; HttpStatus resolved = HttpStatus.resolve(statusInt); if (resolved != null) { // this is not a CUSTOM status, so use series here. outcome = resolved.series().name(); status = resolved.name(); } } } else { HttpStatus statusCode = exchange.getResponse().getStatusCode(); if (statusCode != null) { httpStatusCodeStr = String.valueOf(statusCode.value()); outcome = statusCode.series().name(); status = statusCode.name(); } } return Tags.of("outcome", outcome, "status", status, "httpStatusCode", httpStatusCodeStr, "httpMethod", httpMethod); } }