public boolean match()

in apache-rat-core/src/main/java/org/apache/rat/analysis/license/FullTextMatchingLicense.java [77:109]

• 28 lines of code
• 6 McCabe index (conditional complexity)

    public boolean match(Document subject, String line) throws RatHeaderAnalysisException {
        final String inputToMatch = prune(line).toLowerCase(Locale.ENGLISH);
        if (seenFirstLine) { // Accumulate more input
            buffer.append(inputToMatch);
        } else {
            int offset = inputToMatch.indexOf(firstLine);
            if (offset >= 0) {
                // we have a match, save the text starting with the match
                buffer.append(inputToMatch.substring(offset));
                seenFirstLine = true;
                // Drop out to check whether full text is matched
            } else {
                // we assume that the first line must appear in a single line
                return false; // no more to do here
            }
        }
 
        if (buffer.length() >= fullText.length()) { // we have enough data to match
            if (buffer.toString().contains(fullText)) {
                reportOnLicense(subject);
                return true; // we found a match
            } else { // buffer contains first line but does not contain full text
                // It's possible that the buffer contains the first line again
                int offset = buffer.substring(1).indexOf(firstLine);
                if (offset >= 0) { // first line found again
                    buffer.delete(0,offset); // reset buffer to the new start
                } else { // buffer does not even contain first line, so cannot be used to match full text
                    init();
                }
            }
        }
        return false;
    }