1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.accumulo.core.util;
18
19 import org.apache.commons.codec.binary.Base64;
20 import org.apache.hadoop.io.Text;
21
22 public class Encoding {
23
24 public static String encodeAsBase64FileName(Text data) {
25 String encodedRow = new String(Base64.encodeBase64(TextUtil.getBytes(data)));
26 encodedRow = encodedRow.replace('/', '_').replace('+', '-');
27
28 int index = encodedRow.length() - 1;
29 while (index >= 0 && encodedRow.charAt(index) == '=')
30 index--;
31
32 encodedRow = encodedRow.substring(0, index + 1);
33 return encodedRow;
34 }
35
36 public static byte[] decodeBase64FileName(String node) {
37 while (node.length() % 4 != 0)
38 node += "=";
39
40 node = node.replace('_', '/').replace('-', '+');
41
42 return Base64.decodeBase64(node.getBytes());
43 }
44
45 }