public int readLine()

in core/src/main/java/org/apache/james/mime4j/io/BufferedLineReaderInputStream.java [212:251]

• 39 lines of code
• 12 McCabe index (conditional complexity)

    public int readLine(final ByteArrayBuffer dst)
            throws MaxLineLimitException, IOException {
        if (dst == null) {
            throw new IllegalArgumentException("Buffer may not be null");
        }
        if (!readAllowed()) return -1;

        int total = 0;
        boolean found = false;
        int bytesRead = 0;
        while (!found) {
            if (!hasBufferedData()) {
                bytesRead = fillBuffer();
                if (bytesRead == -1) {
                    break;
                }
            }
            int i = indexOf((byte)'\n');
            int chunk;
            if (i != -1) {
                found = true;
                chunk = i + 1 - pos();
            } else {
                chunk = length();
            }
            if (chunk > 0) {
                dst.append(buf(), pos(), chunk);
                skip(chunk);
                total += chunk;
            }
            if (this.maxLineLen > 0 && dst.length() >= this.maxLineLen) {
                throw new MaxLineLimitException("Maximum line length limit (" + this.maxLineLen +") exceeded");
            }
        }
        if (total == 0 && bytesRead == -1) {
            return -1;
        } else {
            return total;
        }
    }