Example usage for io.netty.handler.codec.http.websocketx.extensions WebSocketClientExtensionHandler WebSocketClientExtensionHandler

Introduction

In this page you can find the example usage for io.netty.handler.codec.http.websocketx.extensions WebSocketClientExtensionHandler WebSocketClientExtensionHandler.

Prototype

public WebSocketClientExtensionHandler(WebSocketClientExtensionHandshaker... extensionHandshakers) 

Source Link

Document

Constructor

Usage

From source file:io.vertx.core.http.impl.Http1xClientConnection.java

License:Open Source License

synchronized void toWebSocket(String requestURI, MultiMap headers, WebsocketVersion vers, String subProtocols,
        int maxWebSocketFrameSize, Handler<WebSocket> wsConnect) {
    if (ws != null) {
        throw new IllegalStateException("Already websocket");
    }/* w  w w  . ja va 2s  .  c  o  m*/

    try {
        URI wsuri = new URI(requestURI);
        if (!wsuri.isAbsolute()) {
            // Netty requires an absolute url
            wsuri = new URI((ssl ? "https:" : "http:") + "//" + host + ":" + port + requestURI);
        }
        WebSocketVersion version = WebSocketVersion
                .valueOf((vers == null ? WebSocketVersion.V13 : vers).toString());
        HttpHeaders nettyHeaders;
        if (headers != null) {
            nettyHeaders = new DefaultHttpHeaders();
            for (Map.Entry<String, String> entry : headers) {
                nettyHeaders.add(entry.getKey(), entry.getValue());
            }
        } else {
            nettyHeaders = null;
        }

        ChannelPipeline p = chctx.channel().pipeline();
        ArrayList<WebSocketClientExtensionHandshaker> extensionHandshakers = initializeWebsocketExtensionHandshakers(
                client.getOptions());
        if (!extensionHandshakers.isEmpty()) {
            p.addBefore("handler", "websocketsExtensionsHandler",
                    new WebSocketClientExtensionHandler(extensionHandshakers
                            .toArray(new WebSocketClientExtensionHandshaker[extensionHandshakers.size()])));
        }

        handshaker = WebSocketClientHandshakerFactory.newHandshaker(wsuri, version, subProtocols,
                !extensionHandshakers.isEmpty(), nettyHeaders, maxWebSocketFrameSize,
                !options.isSendUnmaskedFrames(), false);

        p.addBefore("handler", "handshakeCompleter",
                new HandshakeInboundHandler(wsConnect, version != WebSocketVersion.V00));
        handshaker.handshake(chctx.channel()).addListener(future -> {
            Handler<Throwable> handler = exceptionHandler();
            if (!future.isSuccess() && handler != null) {
                handler.handle(future.cause());
            }
        });
    } catch (Exception e) {
        handleException(e);
    }
}

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