PrevalenceTest.java

package org.prevayler.demos.scalability.prevayler;
import java.io.File;
import java.io.FileFilter;

public class PrevalenceTest {
  static public void delete(  String dir){
    delete(new File(dir));
  }
  static private void delete(  File file){
    if (file.isDirectory())     deleteDirectoryContents(file);
    if (!file.delete()) {
      System.gc();
    }
  }
  static private void deleteDirectoryContents(  File directory){
    File[] files=directory.listFiles(new PrevalenceFilter());
    if (files == null)     return;
    for (int i=0; i < files.length; i++)     delete(files[i]);
  }
static private class PrevalenceFilter implements FileFilter {
    public boolean accept(    File file){
      return file.getName().endsWith("journal") || file.getName().endsWith("snapshot") || file.isDirectory();
    }
  }
}