private static String tryDecodeEncodedWord()

in core/src/main/java/org/apache/james/mime4j/codec/DecoderUtil.java [264:304]
38 lines of code
7 McCabe index (conditional complexity)

    private static String tryDecodeEncodedWord(
            final String mimeCharset,
            final String encoding,
            final String encodedText,
            final DecodeMonitor monitor,
            final Charset fallback,
            final Map<Charset, Charset> charsetOverrides) {
        Charset charset = lookupCharset(mimeCharset, fallback, charsetOverrides);
        if (charset == null) {
            monitor(monitor, mimeCharset, encoding, encodedText, "leaving word encoded",
                    "Mime charser '", mimeCharset, "' doesn't have a corresponding Java charset");
            return null;
        }

        if (encodedText.length() == 0) {
            monitor(monitor, mimeCharset, encoding, encodedText, "leaving word encoded",
                    "Missing encoded text in encoded word");
            return null;
        }

        try {
            if (encoding.equalsIgnoreCase("Q")) {
                return DecoderUtil.decodeQ(encodedText, charset.name(), monitor);
            } else if (encoding.equalsIgnoreCase("B")) {
                return DecoderUtil.decodeB(encodedText, charset.name(), monitor);
            } else {
                monitor(monitor, mimeCharset, encoding, encodedText, "leaving word encoded",
                        "Warning: Unknown encoding in encoded word");
                return null;
            }
        } catch (UnsupportedEncodingException e) {
            // should not happen because of isDecodingSupported check above
            monitor(monitor, mimeCharset, encoding, encodedText, "leaving word encoded",
                    "Unsupported encoding (", e.getMessage(), ") in encoded word");
            return null;
        } catch (RuntimeException e) {
            monitor(monitor, mimeCharset, encoding, encodedText, "leaving word encoded",
                    "Could not decode (", e.getMessage(), ") encoded word");
            return null;
        }
    }