org.springframework.boot.actuate.endpoint.web.reactive.WebFluxEndpointHandlerMapping Maven / Gradle / Ivy
/*
* Copyright 2012-2018 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.boot.actuate.endpoint.web.reactive;
import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.boot.actuate.endpoint.web.EndpointLinksResolver;
import org.springframework.boot.actuate.endpoint.web.EndpointMapping;
import org.springframework.boot.actuate.endpoint.web.EndpointMediaTypes;
import org.springframework.boot.actuate.endpoint.web.ExposableWebEndpoint;
import org.springframework.boot.actuate.endpoint.web.Link;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.reactive.HandlerMapping;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.util.UriComponentsBuilder;
/**
* A custom {@link HandlerMapping} that makes web endpoints available over HTTP using
* Spring WebFlux.
*
* @author Andy Wilkinson
* @author Phillip Webb
* @author Brian Clozel
* @since 2.0.0
*/
public class WebFluxEndpointHandlerMapping extends AbstractWebFluxEndpointHandlerMapping
implements InitializingBean {
private final EndpointLinksResolver linksResolver;
/**
* Creates a new {@code WebFluxEndpointHandlerMapping} instance that provides mappings
* for the given endpoints.
* @param endpointMapping the base mapping for all endpoints
* @param endpoints the web endpoints
* @param endpointMediaTypes media types consumed and produced by the endpoints
* @param corsConfiguration the CORS configuration for the endpoints or {@code null}
* @param linksResolver resolver for determining links to available endpoints
*/
public WebFluxEndpointHandlerMapping(EndpointMapping endpointMapping,
Collection endpoints,
EndpointMediaTypes endpointMediaTypes, CorsConfiguration corsConfiguration,
EndpointLinksResolver linksResolver) {
super(endpointMapping, endpoints, endpointMediaTypes, corsConfiguration);
this.linksResolver = linksResolver;
setOrder(-100);
}
@Override
protected LinksHandler getLinksHandler() {
return new WebFluxLinksHandler();
}
/**
* Handler for root endpoint providing links.
*/
class WebFluxLinksHandler implements LinksHandler {
@Override
@ResponseBody
public Map> links(ServerWebExchange exchange) {
String requestUri = UriComponentsBuilder
.fromUri(exchange.getRequest().getURI()).replaceQuery(null)
.toUriString();
return Collections.singletonMap("_links",
WebFluxEndpointHandlerMapping.this.linksResolver
.resolveLinks(requestUri));
}
@Override
public String toString() {
return "Actuator root web endpoint";
}
}
}