Find


1   package org.incava.io;
2   
3   import java.io.*;
4   import java.util.ArrayList  ;
5   import java.util.List  ;
6   
7   
8   /**
9    * Support for <code>find(1)</code>-like behavior.
10   */
11  public class Find
12  {
13      /**
14       * Passes back a list of files. Directories are processed recursively,
15       * collecting files with the suffix of <code>suffix</code>. If
16       * <code>name</code> refers to a file, it is simply added to the list.
17       */
18      public static void getFileList(List   fileList, String   name, final String   suffix)
19      {
20          try {
21              File fd = new File(name);
22              if (fd.isDirectory()) {
23                  tr.Ace.log("processing directory");
24                  String  [] contents = fd.list(new FilenameFilter() {
25                          public boolean accept(File dir, String   nm) {
26                              File f = new File(dir, nm);
27                              return f.isDirectory() || (f.isFile() && nm.endsWith(suffix));
28                          }
29                      });
30                  for (int ci = 0; contents != null && ci < contents.length; ++ci) {
31                      getFileList(fileList, name + File.separator + contents[ci], suffix);
32                  }
33              }
34              else if (fd.isFile()) {
35                  tr.Ace.log("adding: " + fd);
36                  fileList.add(fd.getCanonicalPath());
37              }
38              else {
39                  System.err.println(name + " not found.");
40              }
41          }
42          catch (FileNotFoundException e) {
43              System.err.println("File " + name + " not found.");
44          }
45          catch (IOException e) {
46              System.err.println("Error opening " + name + ": " + e);
47          }
48      }
49  
50      /**
51       * Returns an array of files, collected from the <code>names</code> list. 
52       * Directories are processed recursively, collecting files with
53       * <code>suffix</code>. If <code>name</code> refers to a file, it is simply
54       * added to the list.
55       */
56      public static String  [] getFileList(String  [] names, String   suffix)
57      {
58          List   fileList = new ArrayList  ();
59          for (int i = 0; i < names.length; ++i) {
60              getFileList(fileList, names[i], suffix);
61          }
62          String  [] fileNames = (String  [])fileList.toArray(new String  [0]);
63          return fileNames;
64      }
65  
66  }
67
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