1 /*
2 * Copyright (C) 2014 jsonwebtoken.io
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package io.jsonwebtoken.impl;
17
18 import io.jsonwebtoken.lang.Assert;
19
20 import java.nio.charset.Charset;
21
22 public abstract class AbstractTextCodec implements TextCodec {
23
24 protected static final Charset UTF8 = Charset.forName("UTF-8");
25 protected static final Charset US_ASCII = Charset.forName("US-ASCII");
26
27 @Override
28 public String encode(String data) {
29 Assert.hasText(data, "String argument to encode cannot be null or empty.");
30 byte[] bytes = data.getBytes(UTF8);
31 return encode(bytes);
32 }
33
34 @Override
35 public String decodeToString(String encoded) {
36 byte[] bytes = decode(encoded);
37 return new String(bytes, UTF8);
38 }
39 }
40