Master/Reference Architectures and Patterns/hjp5/examples/DirectorySizeVisitor.java


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/* DirectorySizeVisitor.java */

import java.io.*;

public class DirectorySizeVisitor
implements DirectoryVisitor
{
  int  files = 0;
  int  dirs  = 0;
  long size  = 0;

  public void enterDirectory(File dir)
  {
    ++dirs;
  }

  public void leaveDirectory(File dir)
  {
  }

  public void visitFile(File file)
  {
    ++files;
    size += file.length();
  }

  public int getDirs()
  {
    return dirs;
  }

  public int getFiles()
  {
    return files;
  }

  public long getSize()
  {
    return size;
  }
}