private int nextChunk()

in oss-20190517/src/main/java/com/aliyun/sdk/service/oss20190517/encryption/internal/CipherInputStream.java [146:169]

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

    private int nextChunk() throws IOException {
        if (eof)
            return -1;
        bufout = null;
        int len = in.read(bufin);
        if (len == -1) {
            eof = true;
            try {
                bufout = cryptoCipher.doFinal();
                if (bufout == null) {
                    return -1;
                }
                curr_pos = 0;
                return max_pos = bufout.length;
            } catch (IllegalBlockSizeException e) {
            } catch (BadPaddingException e) {
                throw new SecurityException(e);
            }
            return -1;
        }
        bufout = cryptoCipher.update(bufin, 0, len);
        curr_pos = 0;
        return max_pos = (bufout == null ? 0 : bufout.length);
    }