Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
MD5 |
|
| 2.0;2 |
1 | /* | |
2 | * Copyright 2010 LinkedIn, Inc | |
3 | * | |
4 | * Licensed under the Apache License, Version 2.0 (the "License"); you may not | |
5 | * use this file except in compliance with the License. You may obtain a copy of | |
6 | * 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, WITHOUT | |
12 | * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the | |
13 | * License for the specific language governing permissions and limitations under | |
14 | * the License. | |
15 | */ | |
16 | ||
17 | package datafu.pig.hash; | |
18 | ||
19 | import java.math.BigInteger; | |
20 | import java.security.MessageDigest; | |
21 | import java.security.NoSuchAlgorithmException; | |
22 | ||
23 | import datafu.pig.util.SimpleEvalFunc; | |
24 | ||
25 | /** | |
26 | * Computes the MD5 value of a string and outputs it in hex. | |
27 | */ | |
28 | public class MD5 extends SimpleEvalFunc<String> | |
29 | { | |
30 | private final MessageDigest md5er; | |
31 | ||
32 | public MD5() | |
33 | 703 | { |
34 | try { | |
35 | 703 | md5er = MessageDigest.getInstance("md5"); |
36 | } | |
37 | 0 | catch (NoSuchAlgorithmException e) { |
38 | 0 | throw new RuntimeException(e); |
39 | 703 | } |
40 | 703 | } |
41 | ||
42 | public String call(String val) | |
43 | { | |
44 | 3 | return new BigInteger(1, md5er.digest(val.getBytes())).toString(16); |
45 | } | |
46 | } |