public ConfiguredGuacamoleSocket()

in guacamole-common/src/main/java/org/apache/guacamole/protocol/ConfiguredGuacamoleSocket.java [203:318]
70 lines of code
12 McCabe index (conditional complexity)

    public ConfiguredGuacamoleSocket(GuacamoleSocket socket,
            GuacamoleConfiguration config,
            GuacamoleClientInformation info) throws GuacamoleException {

        super(socket);
        this.config = config;

        // Get reader and writer
        GuacamoleReader reader = socket.getReader();
        GuacamoleWriter writer = socket.getWriter();

        // Get protocol / connection ID
        String select_arg = config.getConnectionID();
        if (select_arg == null)
            select_arg = config.getProtocol();

        // Send requested protocol or connection ID
        writer.writeInstruction(new GuacamoleInstruction("select", select_arg));

        // Wait for server args
        GuacamoleInstruction args = expect(reader, "args");

        // Build args list off provided names and config
        List<String> arg_names = args.getArgs();
        String[] arg_values = new String[arg_names.size()];
        for (int i=0; i<arg_names.size(); i++) {

            // Retrieve argument name
            String arg_name = arg_names.get(i);
            
            // Check for valid protocol version as first argument
            if (i == 0) {
                GuacamoleProtocolVersion version = GuacamoleProtocolVersion.parseVersion(arg_name);
                if (version != null) {

                    // Use the lowest common version supported
                    if (version.atLeast(GuacamoleProtocolVersion.LATEST))
                        version = GuacamoleProtocolVersion.LATEST;

                    // Respond with the version selected
                    arg_values[i] = version.toString();
                    protocolVersion = version;
                    continue;

                }
            }

            // Get defined value for name
            String value = config.getParameter(arg_name);

            // If value defined, set that value
            if (value != null) arg_values[i] = value;

            // Otherwise, leave value blank
            else arg_values[i] = "";

        }

        // Send size
        writer.writeInstruction(
            new GuacamoleInstruction(
                "size",
                Integer.toString(info.getOptimalScreenWidth()),
                Integer.toString(info.getOptimalScreenHeight()),
                Integer.toString(info.getOptimalResolution())
            )
        );

        // Send supported audio formats
        writer.writeInstruction(
                new GuacamoleInstruction(
                    "audio",
                    info.getAudioMimetypes().toArray(new String[0])
                ));

        // Send supported video formats
        writer.writeInstruction(
                new GuacamoleInstruction(
                    "video",
                    info.getVideoMimetypes().toArray(new String[0])
                ));

        // Send supported image formats
        writer.writeInstruction(
                new GuacamoleInstruction(
                    "image",
                    info.getImageMimetypes().toArray(new String[0])
                ));
        
        // Send client timezone, if supported and available
        if (GuacamoleProtocolCapability.TIMEZONE_HANDSHAKE.isSupported(protocolVersion)) {
            String timezone = info.getTimezone();
            if (timezone != null)
                writer.writeInstruction(new GuacamoleInstruction("timezone", timezone));
        }
        
        // Send client name, if supported and available
        if (GuacamoleProtocolCapability.NAME_HANDSHAKE.isSupported(protocolVersion)) {
            String name = info.getName();
            if (name != null)
                writer.writeInstruction(new GuacamoleInstruction("name", name));
        }

        // Send args
        writer.writeInstruction(new GuacamoleInstruction("connect", arg_values));

        // Wait for ready, store ID
        GuacamoleInstruction ready = expect(reader, "ready");

        List<String> ready_args = ready.getArgs();
        if (ready_args.isEmpty())
            throw new GuacamoleServerException("No connection ID received");

        id = ready.getArgs().get(0);

    }