public static TraceID fromString()

in aws-xray-recorder-sdk-core/src/main/java/com/amazonaws/xray/entities/TraceID.java [58:86]

• 22 lines of code
• 7 McCabe index (conditional complexity)

    public static TraceID fromString(String xrayTraceId) {
        xrayTraceId = xrayTraceId.trim();

        if (xrayTraceId.length() != TRACE_ID_LENGTH) {
            return TraceID.create();
        }

        // Check version trace id version
        if (xrayTraceId.charAt(0) != VERSION) {
            return TraceID.create();
        }

        // Check delimiters
        if (xrayTraceId.charAt(TRACE_ID_DELIMITER_INDEX_1) != DELIMITER
            || xrayTraceId.charAt(TRACE_ID_DELIMITER_INDEX_2) != DELIMITER) {
            return TraceID.create();
        }

        String startTimePart = xrayTraceId.substring(TRACE_ID_DELIMITER_INDEX_1 + 1, TRACE_ID_DELIMITER_INDEX_2);
        if (!isHex(startTimePart)) {
            return TraceID.create();
        }
        String randomPart = xrayTraceId.substring(TRACE_ID_DELIMITER_INDEX_2 + 1, TRACE_ID_LENGTH);
        if (!isHex(randomPart)) {
            return TraceID.create();
        }

        return new TraceID(startTimePart, randomPart);
    }