io.undertow.examples.sse.ServerSentEventsServer Maven / Gradle / Ivy
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* Copyright 2014 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* 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 io.undertow.examples.sse;
import io.undertow.Undertow;
import io.undertow.examples.UndertowExample;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.handlers.resource.ClassPathResourceManager;
import io.undertow.server.handlers.sse.ServerSentEventConnection;
import io.undertow.server.handlers.sse.ServerSentEventHandler;
import io.undertow.util.StringReadChannelListener;
import java.io.IOException;
import static io.undertow.Handlers.path;
import static io.undertow.Handlers.resource;
import static io.undertow.Handlers.serverSentEvents;
/**
* @author Stuart Douglas
*/
@UndertowExample("Server Sent Events")
public class ServerSentEventsServer {
public static void main(final String[] args) {
final ServerSentEventHandler sseHandler = serverSentEvents();
HttpHandler chatHandler = new HttpHandler() {
@Override
public void handleRequest(HttpServerExchange exchange) throws Exception {
new StringReadChannelListener(exchange.getConnection().getByteBufferPool()) {
@Override
protected void stringDone(String string) {
for(ServerSentEventConnection h : sseHandler.getConnections()) {
h.send(string);
}
}
@Override
protected void error(IOException e) {
}
}.setup(exchange.getRequestChannel());
}
};
Undertow server = Undertow.builder()
.addHttpListener(8080, "localhost")
.setHandler(path()
.addPrefixPath("/sse", sseHandler)
.addPrefixPath("/send", chatHandler)
.addPrefixPath("/", resource(new ClassPathResourceManager(ServerSentEventsServer.class.getClassLoader(), ServerSentEventsServer.class.getPackage())).addWelcomeFiles("index.html")))
.build();
server.start();
}
}