org.springframework.web.server.handler.ResponseStatusExceptionHandler Maven / Gradle / Ivy
/*
* Copyright 2002-2018 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
*
* 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.web.server.handler;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import reactor.core.publisher.Mono;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.web.server.ResponseStatusException;
import org.springframework.web.server.ServerWebExchange;
import org.springframework.web.server.WebExceptionHandler;
/**
* Handle {@link ResponseStatusException} by setting the response status.
*
* @author Rossen Stoyanchev
* @author Sebastien Deleuze
* @since 5.0
*/
public class ResponseStatusExceptionHandler implements WebExceptionHandler {
private static final Log logger = LogFactory.getLog(ResponseStatusExceptionHandler.class);
@Override
public Mono handle(ServerWebExchange exchange, Throwable ex) {
if (ex instanceof ResponseStatusException) {
HttpStatus status = ((ResponseStatusException) ex).getStatus();
if (exchange.getResponse().setStatusCode(status)) {
if (status.is5xxServerError()) {
logger.error(buildMessage(exchange.getRequest(), ex));
}
else if (status == HttpStatus.BAD_REQUEST) {
logger.warn(buildMessage(exchange.getRequest(), ex));
}
else {
logger.trace(buildMessage(exchange.getRequest(), ex));
}
return exchange.getResponse().setComplete();
}
}
return Mono.error(ex);
}
private String buildMessage(ServerHttpRequest request, Throwable ex) {
return "Failed to handle request [" + request.getMethod() + " "
+ request.getURI() + "]: " + ex.getMessage();
}
}