/*
* Copyright 2015 Netflix, Inc.
*
* 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.reactivex.netty.protocol.http.ws.server;
import io.netty.handler.codec.http.HttpResponseStatus;
import io.reactivex.netty.protocol.http.server.HttpServerRequest;
import io.reactivex.netty.protocol.http.server.HttpServerResponse;
import io.reactivex.netty.protocol.http.server.RequestHandler;
import rx.Observable;
/**
* A utility to provide convenience {@link RequestHandler} implementations for Web Sockets.
*/
public final class WebSocketHandlers {
private WebSocketHandlers() {
}
/**
* Returns a {@link RequestHandler} that accepts all WebSocket upgrade requests by delegating it to the passed
* handler but sends an HTTP 404 response for all other requests.
*
* @param handler Web Socket handler for all web socket upgrade requests.
*
* @return request handler.
*/
public static <I, O> RequestHandler<I, O> acceptAllUpgrades(final WebSocketHandler handler) {
return new RequestHandler<I, O>() {
@Override
public Observable<Void> handle(HttpServerRequest<I> request, HttpServerResponse<O> response) {
if (request.isWebSocketUpgradeRequested()) {
return response.acceptWebSocketUpgrade(handler);
}
return response.setStatus(HttpResponseStatus.NOT_FOUND)
.write(Observable.<O>empty());
}
};
}
}