protected void encrypt()

in src/main/java/org/apache/commons/crypto/stream/CtrCryptoOutputStream.java [266:299]

• 20 lines of code
• 4 McCabe index (conditional complexity)

    protected void encrypt() throws IOException {
        Utils.checkState(inBuffer.position() >= padding);
        if (inBuffer.position() == padding) {
            // There is no real data in the inBuffer.
            return;
        }

        inBuffer.flip();
        outBuffer.clear();
        encryptBuffer(outBuffer);
        inBuffer.clear();
        outBuffer.flip();

        if (padding > 0) {
            /*
             * The plain text and cipher text have a 1:1 mapping, they start at
             * the same position.
             */
            outBuffer.position(padding);
            padding = 0;
        }

        final int len = output.write(outBuffer);
        streamOffset += len;
        if (cipherReset) {
            /*
             * This code is generally not executed since the encryptor usually
             * maintains encryption context (e.g. the counter) internally.
             * However, some implementations can't maintain context so a re-init
             * is necessary after each encryption call.
             */
            resetCipher();
        }
    }