public String get()

in app/src/main/java/com/epam/securestorage/providers/cipher/CipherEncryptionProvider.java [193:227]

• 30 lines of code
• 9 McCabe index (conditional complexity)

        public String get(@NonNull String key) {
            if (key == null || key.isEmpty()) {
                if (callback != null) {
                    callback.onError(GET, new SecureStorageException("Key or Value can't be NULL ot empty"));
                }
                return null;
            }

            key = generateKeyWithPrefix(key);
            KeyStore.PrivateKeyEntry privateKeyEntry;
            try {
                privateKeyEntry = (KeyStore.PrivateKeyEntry) keyStore.getEntry(KEY_ALIAS, null);

                if (privateKeyEntry == null) return null;
                Cipher cipher = Cipher.getInstance(CIPHER_TYPE, CIPHER_PROVIDER);
                cipher.init(Cipher.DECRYPT_MODE, privateKeyEntry.getPrivateKey());

                String value = getPref(key);
                if (value.isEmpty()) return null;
                byte[] bytes = getBytes(cipher, value);
                String result = new String(bytes, StandardCharsets.UTF_8);

                if (callback != null) {
                    callback.onComplete(GET);
                }

                return result;
            } catch (NoSuchAlgorithmException | KeyStoreException | InvalidKeyException | IOException | NoSuchPaddingException | UnrecoverableEntryException | NoSuchProviderException e) {
                e.printStackTrace();
                if (callback != null) {
                    callback.onError(GET, e);
                }
                return null;
            }
        }