/*
* Copyright 2013-2015 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
*
* 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.springframework.cloud.netflix.metrics;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpResponse;
/**
* @author Jon Schneider
*/
public interface MetricsTagProvider {
/**
* @param request RestTemplate client HTTP request
* @param response may be null in the event of a client error
* @return a map of tags added to every client HTTP request metric
*/
Map<String, String> clientHttpRequestTags(HttpRequest request,
ClientHttpResponse response);
/**
* @param request HTTP request
* @param response HTTP response
* @param handler the request method that is responsible for handling the request
* @return a map of tags added to every Spring MVC HTTP request metric
*/
Map<String, String> httpRequestTags(HttpServletRequest request,
HttpServletResponse response, Object handler, String caller);
}