2 * ============LICENSE_START====================================
3 * DCAEGEN2-SERVICES-SDK
4 * =========================================================
5 * Copyright (C) 2019 Nokia. All rights reserved.
6 * =========================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=====================================
21 package org.onap.dcaegen2.services.sdk.services.hvves.client.producer.api.options;
23 import io.vavr.CheckedFunction1;
24 import io.vavr.Function1;
25 import io.vavr.control.Try;
26 import java.io.IOException;
27 import java.security.GeneralSecurityException;
28 import java.util.Arrays;
29 import org.jetbrains.annotations.NotNull;
32 * Simple password representation.
34 * A password can be used only once. After it the corresponding memory is zeroed.
36 * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
39 public class Password {
43 public Password(@NotNull char[] value) {
48 * Consume the password.
50 * After consumption following uses of this method will return Failure(GeneralSecurityException).
52 * @param user of the password
54 public <T> Try<T> use(Function1<char[], Try<T>> user) {
56 return Try.failure(new GeneralSecurityException("Password had been already used so it is in cleared state"));
59 return user.apply(value);
65 public <T> Try<T> useChecked(CheckedFunction1<char[], T> user) {
66 return use(CheckedFunction1.liftTry(user));
70 Arrays.fill(value, (char) 0);