protected CryptoInputStream()

in src/main/java/org/apache/commons/crypto/stream/CryptoInputStream.java [157:176]

• 15 lines of code
• 2 McCabe index (conditional complexity)

    protected CryptoInputStream(final Input input, final CryptoCipher cipher, final int bufferSize,
            final Key key, final AlgorithmParameterSpec params) throws IOException {
        this.input = input;
        this.cipher = cipher;
        this.bufferSize = checkBufferSize(cipher, bufferSize);

        this.key = key;
        this.params = params;
        if (!(params instanceof IvParameterSpec)) {
            // other AlgorithmParameterSpec such as GCMParameterSpec is not
            // supported now.
            throw new IOException("Illegal parameters");
        }

        inBuffer = ByteBuffer.allocateDirect(this.bufferSize);
        outBuffer = ByteBuffer.allocateDirect(this.bufferSize + cipher.getBlockSize());
        outBuffer.limit(0);

        initCipher();
    }