1 package org.apache.maven.surefire.api.util;
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 import java.util.Objects;
24 import java.util.stream.Stream;
25
26 /**
27 * Centralized file management of temporary files in surefire.<br>
28 * Files are deleted on VM exit.
29 *
30 * @author Markus Spann
31 */
32 public final class SureFireFileManager
33 {
34
35 private static TempFileManager instance = create();
36
37 private static TempFileManager create()
38 {
39 String subDirName = "surefire";
40
41 // create directory name suffix from legal chars in the current user name
42 // or a millisecond timestamp as fallback
43 String userSuffix = Stream.of( "user.name", "USER", "USERNAME" )
44 .map( System::getProperty )
45 .filter( Objects::nonNull )
46 .findFirst()
47 .map( u -> u.replaceAll( "[^A-Za-z0-9\\-_]", "" ) )
48 .map( u -> u.isEmpty() ? null : u )
49 .orElse( Long.toString( System.currentTimeMillis() ) );
50
51 if ( userSuffix != null )
52 {
53 subDirName += "-" + userSuffix;
54 }
55
56 TempFileManager tfm = TempFileManager.instance( subDirName );
57 tfm.setDeleteOnExit( true );
58 return tfm;
59 }
60
61 public static File createTempFile( String prefix, String suffix )
62 {
63 return instance.createTempFile( prefix, suffix );
64 }
65
66 }