org.springframework.boot.autoconfigure.websocket.reactive.JettyWebSocketReactiveWebServerCustomizer 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.websocket.reactive;
import jakarta.servlet.ServletContext;
import org.eclipse.jetty.ee10.servlet.ServletContextHandler;
import org.eclipse.jetty.ee10.websocket.jakarta.server.JakartaWebSocketServerContainer;
import org.eclipse.jetty.ee10.websocket.server.JettyWebSocketServerContainer;
import org.eclipse.jetty.ee10.websocket.servlet.WebSocketUpgradeFilter;
import org.eclipse.jetty.server.Handler;
import org.eclipse.jetty.websocket.core.server.WebSocketMappings;
import org.eclipse.jetty.websocket.core.server.WebSocketServerComponents;
import org.springframework.boot.web.embedded.jetty.JettyReactiveWebServerFactory;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.core.Ordered;
/**
* WebSocket customizer for {@link JettyReactiveWebServerFactory}.
*
* @author Andy Wilkinson
* @since 3.0.8
*/
public class JettyWebSocketReactiveWebServerCustomizer
implements WebServerFactoryCustomizer, Ordered {
@Override
public void customize(JettyReactiveWebServerFactory factory) {
factory.addServerCustomizers((server) -> {
ServletContextHandler servletContextHandler = findServletContextHandler(server);
if (servletContextHandler != null) {
ServletContext servletContext = servletContextHandler.getServletContext();
if (JettyWebSocketServerContainer.getContainer(servletContext) == null) {
WebSocketServerComponents.ensureWebSocketComponents(server, servletContextHandler);
JettyWebSocketServerContainer.ensureContainer(servletContext);
}
if (JakartaWebSocketServerContainer.getContainer(servletContext) == null) {
WebSocketServerComponents.ensureWebSocketComponents(server, servletContextHandler);
WebSocketUpgradeFilter.ensureFilter(servletContext);
WebSocketMappings.ensureMappings(servletContextHandler);
JakartaWebSocketServerContainer.ensureContainer(servletContext);
}
}
});
}
private ServletContextHandler findServletContextHandler(Handler handler) {
if (handler instanceof ServletContextHandler servletContextHandler) {
return servletContextHandler;
}
if (handler instanceof Handler.Wrapper handlerWrapper) {
return findServletContextHandler(handlerWrapper.getHandler());
}
if (handler instanceof Handler.Collection handlerCollection) {
for (Handler contained : handlerCollection.getHandlers()) {
ServletContextHandler servletContextHandler = findServletContextHandler(contained);
if (servletContextHandler != null) {
return servletContextHandler;
}
}
}
return null;
}
@Override
public int getOrder() {
return 0;
}
}