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1   package org.apache.maven.surefire.booter;
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.io.FileInputStream;
24  import java.io.FileOutputStream;
25  import java.io.IOException;
26  import java.io.InputStream;
27  import java.util.Properties;
28  
29  /**
30   * @author Kristian Rosenvold
31   */
32  public class SystemPropertyManager
33  {
34  
35      /**
36       * Loads the properties, closes the stream
37       *
38       * @param inStream The stream to read from, will be closed
39       * @return The properties
40       * @throws java.io.IOException If something bad happens
41       */
42      public static PropertiesWrapper loadProperties( InputStream inStream )
43          throws IOException
44      {
45          Properties p = new Properties();
46  
47          try
48          {
49              p.load( inStream );
50          }
51          finally
52          {
53              close( inStream );
54          }
55  
56          return new PropertiesWrapper( p );
57      }
58  
59      private static PropertiesWrapper loadProperties( File file )
60          throws IOException
61      {
62          return loadProperties( new FileInputStream( file ) );
63      }
64  
65  
66      public static void setSystemProperties( File file )
67          throws IOException
68      {
69          PropertiesWrapper p = loadProperties( file );
70          p.setAsSystemProperties();
71      }
72  
73      public static File writePropertiesFile( Properties properties, File tempDirectory, String name,
74                                              boolean keepForkFiles )
75          throws IOException
76      {
77          File file = File.createTempFile( name, "tmp", tempDirectory );
78          if ( !keepForkFiles )
79          {
80              file.deleteOnExit();
81          }
82  
83          writePropertiesFile( file, name, properties );
84  
85          return file;
86      }
87  
88      public static void writePropertiesFile( File file, String name, Properties properties )
89          throws IOException
90      {
91          FileOutputStream out = new FileOutputStream( file );
92  
93          try
94          {
95              properties.store( out, name );
96          }
97          finally
98          {
99              out.close();
100         }
101     }
102 
103     public static void close( InputStream inputStream )
104     {
105         if ( inputStream == null )
106         {
107             return;
108         }
109 
110         try
111         {
112             inputStream.close();
113         }
114         catch ( IOException ex )
115         {
116             // ignore
117         }
118     }
119 
120 
121 }