spring ServletWebSocketHandlerRegistration 源码
spring ServletWebSocketHandlerRegistration 代码
文件路径：/spring-websocket/src/main/java/org/springframework/web/socket/config/annotation/ServletWebSocketHandlerRegistration.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.web.socket.config.annotation;
import java.util.Arrays;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.util.ObjectUtils;
import org.springframework.web.HttpRequestHandler;
import org.springframework.web.socket.WebSocketHandler;
import org.springframework.web.socket.server.HandshakeHandler;
import org.springframework.web.socket.server.HandshakeInterceptor;
import org.springframework.web.socket.server.support.WebSocketHttpRequestHandler;
import org.springframework.web.socket.sockjs.SockJsService;
import org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler;
/**
* A helper class for configuring {@link WebSocketHandler} request handling
* including SockJS fallback options.
*
* @author Rossen Stoyanchev
* @since 4.0
*/
public class ServletWebSocketHandlerRegistration
extends AbstractWebSocketHandlerRegistration<MultiValueMap<HttpRequestHandler, String>> {
@Override
protected MultiValueMap<HttpRequestHandler, String> createMappings() {
return new LinkedMultiValueMap<>();
}
@Override
protected void addSockJsServiceMapping(MultiValueMap<HttpRequestHandler, String> mappings,
SockJsService sockJsService, WebSocketHandler handler, String pathPattern) {
SockJsHttpRequestHandler httpHandler = new SockJsHttpRequestHandler(sockJsService, handler);
mappings.add(httpHandler, pathPattern);
}
@Override
protected void addWebSocketHandlerMapping(MultiValueMap<HttpRequestHandler, String> mappings,
WebSocketHandler webSocketHandler, HandshakeHandler handshakeHandler,
HandshakeInterceptor[] interceptors, String path) {
WebSocketHttpRequestHandler httpHandler =
new WebSocketHttpRequestHandler(webSocketHandler, handshakeHandler);
if (!ObjectUtils.isEmpty(interceptors)) {
httpHandler.setHandshakeInterceptors(Arrays.asList(interceptors));
}
mappings.add(httpHandler, path);
}
}
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