1 /**
2 * Copyright (C) 2016 Gary Gregory. All rights reserved.
3 *
4 * See the NOTICE.txt file distributed with this work for additional
5 * information regarding copyright ownership.
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
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
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 */
19
20 package com.garygregory.jcommander.converters.security;
21
22 import java.security.AlgorithmParameterGenerator;
23 import java.security.NoSuchAlgorithmException;
24 import java.security.NoSuchProviderException;
25
26 import com.garygregory.jcommander.converters.AbstractBaseConverter;
27
28 /**
29 * Converts a {@link String} into a {@link AlgorithmParameterGenerator}.
30 * <p>
31 * For a description of the format, see {@link AlgorithmParameterGenerator#getInstance(String)}.
32 * </p>
33 *
34 * <p>
35 * Example:
36 * </p>
37 *
38 * <pre class="prettyprint">
39 * <code class=
40 * "language-java">@Parameter(names = { "--algorithmParameterGenerator" }, converter = AlgorithmParameterGeneratorConverter.class)
41 * private AlgorithmParameterGenerator algorithmParameterGenerator;</code>
42 * </pre>
43 * <p>
44 *
45 * @see AlgorithmParameterGenerator
46 * @see AlgorithmParameterGenerator#getInstance(String)
47 *
48 * @since 1.0.0
49 * @author <a href="mailto:ggregory@garygregory.com">Gary Gregory</a>
50 */
51 public class AlgorithmParameterGeneratorConverter extends AbstractBaseConverter<AlgorithmParameterGenerator> {
52
53 /**
54 * Constructs a converter.
55 *
56 * @param optionName
57 * The option name, may be null.
58 */
59 public AlgorithmParameterGeneratorConverter(final String optionName) {
60 super(optionName, AlgorithmParameterGenerator.class);
61 }
62
63 @Override
64 protected AlgorithmParameterGenerator convertImpl(final String value) throws NoSuchAlgorithmException, NoSuchProviderException {
65 final String[] split = split(value);
66 final String algorithm = split[0];
67 return isSingle(split) ? AlgorithmParameterGenerator.getInstance(value)
68 : AlgorithmParameterGenerator.getInstance(algorithm, split[1]);
69 }
70
71 }