/*
 * Copyright 2002-2015 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 playground;

import java.util.Arrays;
import java.util.concurrent.CompletableFuture;

import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.codec.support.ByteBufferEncoder;
import org.springframework.core.codec.support.JacksonJsonEncoder;
import org.springframework.core.codec.support.JsonObjectEncoder;
import org.springframework.core.codec.support.StringEncoder;
import org.springframework.core.convert.ConversionService;
import org.springframework.core.convert.support.GenericConversionService;
import org.springframework.core.convert.support.ReactiveStreamsToCompletableFutureConverter;
import org.springframework.core.convert.support.ReactiveStreamsToRxJava1Converter;
import org.springframework.http.server.reactive.boot.HttpServer;
import org.springframework.http.server.reactive.boot.JettyHttpServer;
import org.springframework.http.server.reactive.boot.ReactorHttpServer;
import org.springframework.http.server.reactive.boot.RxNettyHttpServer;
import org.springframework.http.server.reactive.boot.TomcatHttpServer;
import org.springframework.http.server.reactive.boot.UndertowHttpServer;
import org.springframework.web.reactive.DispatcherHandler;
import org.springframework.web.reactive.handler.SimpleHandlerResultHandler;
import org.springframework.web.reactive.method.annotation.RequestMappingHandlerAdapter;
import org.springframework.web.reactive.method.annotation.RequestMappingHandlerMapping;
import org.springframework.web.reactive.method.annotation.ResponseBodyResultHandler;

/**
 * @author Sebastien Deleuze
 */
@Configuration
public class Application {

	public static void main(String[] args) throws Exception {

		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext("playground");
		DispatcherHandler dispatcherHandler = new DispatcherHandler();
		dispatcherHandler.setApplicationContext(context);

		HttpServer server = new ReactorHttpServer();
		server.setPort(8080);
		server.setHandler(dispatcherHandler);
		server.afterPropertiesSet();
		server.start();

		CompletableFuture<Void> stop = new CompletableFuture<>();
		Runtime.getRuntime().addShutdownHook(new Thread(() -> {
			stop.complete(null);
		}));

		synchronized (stop) {
			stop.wait();
		}

	}

	@Bean
	RequestMappingHandlerMapping handlerMapping() {
		return new RequestMappingHandlerMapping();
	}

	@Bean
	RequestMappingHandlerAdapter handlerAdapter() {
		RequestMappingHandlerAdapter handlerAdapter = new RequestMappingHandlerAdapter();
		handlerAdapter.setConversionService(conversionService());
		return handlerAdapter;
	}

	@Bean
	ConversionService conversionService() {
		GenericConversionService service = new GenericConversionService();
		service.addConverter(new ReactiveStreamsToCompletableFutureConverter());
		service.addConverter(new ReactiveStreamsToRxJava1Converter());
		return service;
	}

	@Bean
	ResponseBodyResultHandler responseBodyResultHandler() {
		return new ResponseBodyResultHandler(Arrays.asList(
				new ByteBufferEncoder(), new StringEncoder(),
				new JacksonJsonEncoder(new JsonObjectEncoder())), conversionService());
	}

	@Bean
	SimpleHandlerResultHandler simpleHandlerResultHandler() {
		return new SimpleHandlerResultHandler(conversionService());
	}

}

@@ -1462,32 +1462,252 @@
 Java1Converter;%0A
+import org.springframework.http.server.reactive.ErrorHandlingHttpHandler;%0Aimport org.springframework.http.server.reactive.HttpHandler;%0Aimport org.springframework.http.server.reactive.InternalServerErrorExceptionHandler;%0A
 import org.sprin
@@ -1747,32 +1747,32 @@
 oot.HttpServer;%0A
-
 import org.sprin
@@ -2164,32 +2164,104 @@
 patcherHandler;%0A
+import org.springframework.web.reactive.ResponseStatusExceptionHandler;%0A
 import org.sprin
@@ -2941,16 +2941,179 @@
 text);%0A%0A
+%09%09HttpHandler httpHandler = new ErrorHandlingHttpHandler(dispatcherHandler,%0A%09%09%09%09new ResponseStatusExceptionHandler(), new InternalServerErrorExceptionHandler());%0A%0A
 %09%09HttpSe
@@ -3191,34 +3191,28 @@
 .setHandler(
-dispatcher
+http
 Handler);%0A%09%09

Add exception handling