public String peekString()

in commons-geometry-io-core/src/main/java/org/apache/commons/geometry/io/core/internal/CharReadBuffer.java [222:246]

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

    public String peekString(final int len) {
        if (len < 0) {
            throw new IllegalArgumentException("Requested string length cannot be negative; was " + len);
        } else if (len == 0) {
            return hasMoreCharacters() ?
                    "" :
                    null;
        }

        final int available = makeAvailable(len);
        final int resultLen = Math.min(len, available);
        if (resultLen < 1) {
            return null;
        }

        final int contiguous = Math.min(buffer.length - head, resultLen);
        final int remaining = resultLen - contiguous;

        String result = String.valueOf(buffer, head, contiguous);
        if (remaining > 0) {
            result += String.valueOf(buffer, 0, remaining);
        }

        return result;
    }