1 package org.apache.maven.plugin.install;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.File;
23
24 import org.codehaus.plexus.digest.Digester;
25 import org.codehaus.plexus.digest.Md5Digester;
26 import org.codehaus.plexus.digest.Sha1Digester;
27 import org.codehaus.plexus.util.FileUtils;
28
29 /**
30 * A utility class to assist testing.
31 *
32 * @author Benjamin Bentmann
33 * @version $Id: Utils.html 831044 2012-09-03 20:19:45Z olamy $
34 */
35 public class Utils
36 {
37
38 /**
39 * Verifies a checksum file in the local repo.
40 *
41 * @param checksumFile The checksum file to verify, must not be <code>null</code>.
42 * @throws Exception If the verification failed.
43 */
44 public static void verifyChecksum( File checksumFile )
45 throws Exception
46 {
47 File dataFile;
48 Digester digester;
49 if ( checksumFile.getName().endsWith( ".md5" ) )
50 {
51 digester = new Md5Digester();
52 dataFile = new File( checksumFile.getPath().substring( 0, checksumFile.getPath().length() - 4 ) );
53 }
54 else if ( checksumFile.getName().endsWith( ".sha1" ) )
55 {
56 digester = new Sha1Digester();
57 dataFile = new File( checksumFile.getPath().substring( 0, checksumFile.getPath().length() - 5 ) );
58 }
59 else
60 {
61 throw new IllegalArgumentException( "Unsupported checksum file: " + checksumFile );
62 }
63
64 String expected = FileUtils.fileRead( checksumFile, "UTF-8" );
65 digester.verify( dataFile, expected );
66 }
67
68 }