public String createUpgradeRequest()

in src/main/java/com/microsoft/azure/proton/transport/ws/impl/WebSocketUpgrade.java [77:111]

29 lines of code
5 McCabe index (conditional complexity)


    public String createUpgradeRequest() {
        if (this.host.isEmpty()) {
            throw new InvalidParameterException("host header has no value");
        }

        if (this.protocol.isEmpty()) {
            throw new InvalidParameterException("protocol header has no value");
        }

        this.webSocketKey = createWebSocketKey();

        final String endOfLine = "\r\n";
        final StringBuilder stringBuilder = new StringBuilder()
                .append("GET https://")
                .append(this.host)
                .append(this.path)
                .append(this.query)
                .append(" HTTP/1.1").append(endOfLine)
                .append("Connection: Upgrade,Keep-Alive").append(endOfLine)
                .append("Upgrade: websocket").append(endOfLine)
                .append("Sec-WebSocket-Version: 13").append(endOfLine)
                .append("Sec-WebSocket-Key: ").append(this.webSocketKey).append(endOfLine)
                .append("Sec-WebSocket-Protocol: ").append(this.protocol).append(endOfLine)
                .append("Host: ").append(this.host).append(endOfLine);

        if (additionalHeaders != null) {
            for (Map.Entry<String, String> entry : additionalHeaders.entrySet()) {
                stringBuilder.append(entry.getKey()).append(": ").append(entry.getValue()).append(endOfLine);
            }
        }

        stringBuilder.append(endOfLine);

        return stringBuilder.toString();
    }