public int getReply()

in src/main/java/org/apache/commons/net/smtp/SMTP.java [187:241]
34 lines of code
11 McCabe index (conditional complexity)

    public int getReply() throws IOException {
        final int length;

        newReplyString = true;
        replyLines.clear();

        String line = reader.readLine();

        if (line == null) {
            throw new SMTPConnectionClosedException("Connection closed without indication.");
        }

        // In case we run into an anomaly we don't want fatal index exceptions
        // to be thrown.
        length = line.length();
        if (length < 3) {
            throw new MalformedServerReplyException("Truncated server reply: " + line);
        }

        try {
            final String code = line.substring(0, 3);
            replyCode = Integer.parseInt(code);
        } catch (final NumberFormatException e) {
            throw new MalformedServerReplyException("Could not parse response code.\nServer Reply: " + line);
        }

        replyLines.add(line);

        // Get extra lines if message continues.
        if (length > 3 && line.charAt(3) == '-') {
            do {
                line = reader.readLine();

                if (line == null) {
                    throw new SMTPConnectionClosedException("Connection closed without indication.");
                }

                replyLines.add(line);

                // The length() check handles problems that could arise from readLine()
                // returning too soon after encountering a naked CR or some other
                // anomaly.
            } while (!(line.length() >= 4 && line.charAt(3) != '-' && Character.isDigit(line.charAt(0))));
            // This is too strong a condition because a non-conforming server
            // could screw things up like ftp.funet.fi does for FTP
            // line.startsWith(code)));
        }

        fireReplyReceived(replyCode, getReplyString());

        if (replyCode == SMTPReply.SERVICE_NOT_AVAILABLE) {
            throw new SMTPConnectionClosedException("SMTP response 421 received.  Server closed connection.");
        }
        return replyCode;
    }