org.springframework.boot.autoconfigure.web.servlet.WelcomePageNotAcceptableHandlerMapping Maven / Gradle / Ivy
/*
* Copyright 2012-2023 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.autoconfigure.web.servlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProviders;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpStatus;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.handler.AbstractUrlHandlerMapping;
import org.springframework.web.servlet.mvc.Controller;
/**
* An {@link AbstractUrlHandlerMapping} for an application's welcome page that was
* ultimately not accepted.
*
* @author Phillip Webb
*/
class WelcomePageNotAcceptableHandlerMapping extends AbstractUrlHandlerMapping {
WelcomePageNotAcceptableHandlerMapping(TemplateAvailabilityProviders templateAvailabilityProviders,
ApplicationContext applicationContext, Resource indexHtmlResource, String staticPathPattern) {
setOrder(LOWEST_PRECEDENCE - 10); // Before ResourceHandlerRegistry
WelcomePage welcomePage = WelcomePage.resolve(templateAvailabilityProviders, applicationContext,
indexHtmlResource, staticPathPattern);
if (welcomePage != WelcomePage.UNRESOLVED) {
setRootHandler((Controller) this::handleRequest);
}
}
private ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) {
response.setStatus(HttpStatus.NOT_ACCEPTABLE.value());
return null;
}
@Override
protected Object getHandlerInternal(HttpServletRequest request) throws Exception {
return super.getHandlerInternal(request);
}
}