public int readLine()

in core/src/main/java/org/apache/james/mime4j/io/MimeBoundaryInputStream.java [163:202]

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

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

        int total = 0;
        boolean found = false;
        int bytesRead = 0;
        while (!found) {
            if (!hasData()) {
                bytesRead = fillBuffer();
                if (endOfStream() && !hasData()) {
                    skipBoundary();
                    verifyEndOfStream();
                    bytesRead = -1;
                    break;
                }
            }
            int len = this.limit - this.buffer.pos();
            int i = this.buffer.indexOf((byte)'\n', this.buffer.pos(), len);
            int chunk;
            if (i != -1) {
                found = true;
                chunk = i + 1 - this.buffer.pos();
            } else {
                chunk = len;
            }
            if (chunk > 0) {
                dst.append(this.buffer.buf(), this.buffer.pos(), chunk);
                this.buffer.skip(chunk);
                total += chunk;
            }
        }
        if (total == 0 && bytesRead == -1) {
            return -1;
        } else {
            return total;
        }
    }