public String get()

in app/src/main/java/com/epam/securestorage/providers/cipher/CipherEncryptionProvider.java [330:366]
32 lines of code
11 McCabe index (conditional complexity)

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

            key = generateKeyWithPrefix(key);
            if (!isValueSet(I_VECTOR + key) || !isValueSet(key)) {
                return null;
            }

            try {
                String value = getPref(key);
                byte[] iv = getByteArray(getPref(I_VECTOR + key));
                IvParameterSpec ivParameterSpec = new IvParameterSpec(iv);
                KeyStore.SecretKeyEntry secretKeyEntry = (KeyStore.SecretKeyEntry) keyStore.getEntry(KEY_ALIAS, null);
                if (secretKeyEntry == null) return null;
                cipher.init(Cipher.DECRYPT_MODE, secretKeyEntry.getSecretKey(), ivParameterSpec);
                if (value.isEmpty()) return null;
                String result = new String(cipher.doFinal(Base64.decode(value, Base64.DEFAULT)), StandardCharsets.UTF_8);

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

                return result;
            } catch (InvalidKeyException | BadPaddingException | IllegalBlockSizeException | InvalidAlgorithmParameterException | NoSuchAlgorithmException | UnrecoverableEntryException | KeyStoreException e) {
                e.printStackTrace();

                if (callback != null) {
                    callback.onError(GET, e);
                }
                return null;
            }
        }