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1   package org.codehaus.mojo.natives.plugin;
2   
3   /*
4    * The MIT License
5    *
6    * Copyright (c) 2005-2006, The Codehaus
7    *
8    * Permission is hereby granted, free of charge, to any person obtaining a copy of
9    * this software and associated documentation files (the "Software"), to deal in
10   * the Software without restriction, including without limitation the rights to
11   * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
12   * of the Software, and to permit persons to whom the Software is furnished to do
13   * so, subject to the following conditions:
14   *
15   * The above copyright notice and this permission notice shall be included in all
16   * copies or substantial portions of the Software.
17   *
18   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
21   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
23   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24   * SOFTWARE.
25   */
26  
27  import java.util.ArrayList;
28  import java.util.List;
29  import org.codehaus.plexus.util.StringUtils;
30  
31  public class NativeMojoUtils
32  {
33      /**
34       * Remove/trim empty or null member of a string array
35       *
36       * @param args
37       * @return
38       */
39      public static String[] trimParams( List args )
40      {
41          if ( args == null )
42          {
43              return new String[0];
44          }
45  
46          List tokenArray = new ArrayList();
47  
48          for ( int i = 0; i < args.size(); ++i )
49          {
50              String arg = (String) args.get( i );
51  
52              if ( arg == null || arg.length() == 0 )
53              {
54                  continue;
55              }
56  
57              String[] tokens = StringUtils.split( arg );
58  
59              for ( int k = 0; k < tokens.length; ++k )
60              {
61                  if ( tokens[k] == null || tokens[k].trim().length() == 0 )
62                  {
63                      continue;
64                  }
65  
66                  tokenArray.add( tokens[k].trim() );
67              }
68          }
69  
70          return (String[]) tokenArray.toArray( new String[tokenArray.size()] );
71      }
72  
73  }