org.springframework.boot.web.embedded.undertow.HttpHandlerFactory Maven / Gradle / Ivy
/*
* Copyright 2012-2020 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.web.embedded.undertow;
import java.io.Closeable;
import io.undertow.server.HttpHandler;
import io.undertow.server.handlers.GracefulShutdownHandler;
/**
* Factory used by {@link UndertowServletWebServer} to add {@link HttpHandler
* HttpHandlers}. Instances returned from this factory may optionally implement the
* following interfaces:
*
* - {@link Closeable} - if they wish to be closed just before server stops.
* - {@link GracefulShutdownHandler} - if they wish to manage graceful shutdown.
*
*
* @author Phillip Webb
* @since 2.3.0
*/
@FunctionalInterface
public interface HttpHandlerFactory {
/**
* Create the {@link HttpHandler} instance that should be added.
* @param next the next handler in the chain
* @return the new HTTP handler instance
*/
HttpHandler getHandler(HttpHandler next);
}