FilenameFilter woes

From:

Alan <jalanthomas@verizon.net>

Newsgroups:

comp.lang.java.programmer

Date:

Fri, 28 Dec 2007 17:35:29 -0800 (PST)

Message-ID:

<a82252bc-e0ec-4ec8-bbca-03e2e6bf9c48@w56g2000hsf.googlegroups.com>

   I have extended the FilenameFilter class, and it works in finding
files in the current directory ("My Java Code\") and its next level
down subdirectories (e.g., "My Java Code\jat). However, when it gets
below that level (e.g., at "My Java Code\jat\util"), it no longer
recognizes a subdirectory as being a directory.

    The reason for this is that it does not see the second one (util)
as existing. But it saw jat as existing.

    The code for the class extension may be found below. For the
directories mentioned above, I am getting the following output:

First level down:

***** Directory: C:\WINDOWS\Profiles\Alan000\My Documents\My Java Code
Checking file acceptance criteria for jat
   name = null
   extension = java
   includeDirectories = true
jat is a directory.
jat exists.
Value of fileOK = true

Next level down:

***** Directory: C:\WINDOWS\Profiles\Alan000\My Documents\My Java Code
\jat
Checking file acceptance criteria for util
   name = null
   extension = java
   includeDirectories = true
util is NOT a directory!!!
util does NOT exist!!!
Value of fileOK = false

     Is it obvious to anyone what I am doing wrong? How can one
directory be recognized while another is not?

Thanks, Alan

class FileListFilter implements FilenameFilter
   {
      private String name, extension;
      private boolean includeDirectories;

      public FileListFilter(String name, String extension,
                              boolean includeDirectories)
      {
         this.name = name;
         this.extension = extension;
         this.includeDirectories = includeDirectories;
      }

      public boolean accept(File directory, String filename)
      {
         boolean fileOK = true;

         System.out.println("***** Directory: " + directory);
         System.out.println("Checking file acceptance criteria for "
                              + filename);
         System.out.println(" name = " + name);
         System.out.println(" extension = " + extension);
         System.out.println(" includeDirectories = "
                              + includeDirectories);

         if (name != null)
         { fileOK &= filename.startsWith(name); }

         if (extension != null)
         {
            if (fileOK)
            {
              fileOK &= filename.endsWith('.' + extension);
               if (!fileOK && includeDirectories)
               {
                  File file = new File(filename);

                  if (file.isDirectory())
                  { System.out.println(file.getName() + " is a
directory."); }
                  else
                  { System.out.println(file.getName() + " is NOT a
directory!!!"); }

                  if (file.exists())
                  { System.out.println(file.getName() + " exists."); }
                  else
                  { System.out.println(file.getName() + " does NOT
exist!!!"); }

                  fileOK = file.isDirectory();
               }
            }
         }

         System.out.println("Value of fileOK = " + fileOK);
         return fileOK;
      }
   }