spring ContextPathCompositeHandler 源码
spring ContextPathCompositeHandler 代码
文件路径：/spring-web/src/main/java/org/springframework/http/server/reactive/ContextPathCompositeHandler.java
/*
* 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
*
* 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.http.server.reactive;
import java.util.LinkedHashMap;
import java.util.Map;
import reactor.core.publisher.Mono;
import org.springframework.http.HttpStatus;
import org.springframework.util.Assert;
/**
* {@code HttpHandler} delegating requests to one of several {@code HttpHandler}'s
* based on simple, prefix-based mappings.
*
* <p>This is intended as a coarse-grained mechanism for delegating requests to
* one of several applications -- each represented by an {@code HttpHandler}, with
* the application "context path" (the prefix-based mapping) exposed via
* {@link ServerHttpRequest#getPath()}.
*
* @author Rossen Stoyanchev
* @since 5.0
*/
public class ContextPathCompositeHandler implements HttpHandler {
private final Map<String, HttpHandler> handlerMap;
public ContextPathCompositeHandler(Map<String, ? extends HttpHandler> handlerMap) {
Assert.notEmpty(handlerMap, "Handler map must not be empty");
this.handlerMap = initHandlers(handlerMap);
}
private static Map<String, HttpHandler> initHandlers(Map<String, ? extends HttpHandler> map) {
map.keySet().forEach(ContextPathCompositeHandler::assertValidContextPath);
return new LinkedHashMap<>(map);
}
private static void assertValidContextPath(String contextPath) {
Assert.hasText(contextPath, "Context path must not be empty");
if (contextPath.equals("/")) {
return;
}
Assert.isTrue(contextPath.startsWith("/"), "Context path must begin with '/'");
Assert.isTrue(!contextPath.endsWith("/"), "Context path must not end with '/'");
}
@Override
public Mono<Void> handle(ServerHttpRequest request, ServerHttpResponse response) {
// Remove underlying context path first (e.g. Servlet container)
String path = request.getPath().pathWithinApplication().value();
return this.handlerMap.entrySet().stream()
.filter(entry -> path.startsWith(entry.getKey()))
.findFirst()
.map(entry -> {
String contextPath = request.getPath().contextPath().value() + entry.getKey();
ServerHttpRequest newRequest = request.mutate().contextPath(contextPath).build();
return entry.getValue().handle(newRequest, response);
})
.orElseGet(() -> {
response.setStatusCode(HttpStatus.NOT_FOUND);
return response.setComplete();
});
}
}
相关信息
相关文章
spring AbstractListenerReadPublisher 源码
spring AbstractListenerServerHttpResponse 源码
spring AbstractListenerWriteFlushProcessor 源码
spring AbstractListenerWriteProcessor 源码
spring AbstractServerHttpRequest 源码
spring AbstractServerHttpResponse 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦