public static void processFile()

in src/java/org/apache/fulcrum/jce/crypto/cli/CLI2.java [215:267]
45 lines of code
6 McCabe index (conditional complexity)

	public static void processFile(String cipherMode, char[] password, File sourceFile, File targetFile)
			throws Exception {

		try (FileInputStream fis = new FileInputStream(sourceFile)) {
			ByteArrayOutputStream baos = new ByteArrayOutputStream();
			CryptoUtilJ8 cryptoUtilJ8 = createCryptoUtil(cipherMode);
			
			if (cryptoUtilJ8 == null) {
				System.out.println("Canceling ");
				return;
			}

			if (cipherMode.startsWith("dec")) {
				System.out.println("Decrypting " + sourceFile.getAbsolutePath());

				// String value = new String(Files.readAllBytes(Paths.get(sourceFile.toURI())));
				StringBuffer stringBuffer = new StringBuffer();
				int i;
				while ((i = fis.read()) != -1) {
					stringBuffer.append((char) i);
				}

				String value = stringBuffer.toString();
				if (isHexadecimal(value)) {
					byte[] buffer = HexConverter.toBytes(value);
					cryptoUtilJ8.decrypt(buffer, baos, password);
				} else {
					try (FileInputStream fis2 = new FileInputStream(sourceFile)) {
						cryptoUtilJ8.decrypt(fis2, baos, password);
					}
				}

				ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
				FileOutputStream fos = new FileOutputStream(targetFile);
				StreamUtil.copy(bais, fos);
				bais.close();
				fos.close();
			} else if (cipherMode.startsWith("enc")) {
				System.out.println("Encrypting " + sourceFile.getAbsolutePath());
				cryptoUtilJ8.encrypt(fis, baos, password);
				fis.close();

				ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
				FileOutputStream fos = new FileOutputStream(targetFile);
				StreamUtil.copy(bais, fos);
				bais.close();
				fos.close();
			} else {
				String msg = "Don't know what to do with : " + cipherMode;
				throw new IllegalArgumentException(msg);
			}
		}
	}