FileManager class, which uses HashMaps as a Cache for [AutoUpdating]PreloadedFiles

FileManager.java

package com.tapwalk.android.DataManagement;

import java.util.HashMap;
import java.util.Map;

/**
 * Created with IntelliJ IDEA.
 * User: Matt Gowie
 * Date: 6/20/12
 * Time: 3:08 PM
 */
public class FileManager {
    private static Map<String, AutoUpdatingPreloadedFile> sAutoUpdatingFileManager
            = new HashMap<String, AutoUpdatingPreloadedFile>();
    private static Map<String, PreloadedFile> sPreloadedFileManager
            = new HashMap<String, PreloadedFile>();


    public static PreloadedFile preloadedFile(String filename){
        if(sPreloadedFileManager.containsKey(filename)){ // We have already created this file, get it from the cache
            return sPreloadedFileManager.get(filename);
        } else { // We have no yet created this file, create a new one.
            PreloadedFile file = new PreloadedFile(filename);
            sPreloadedFileManager.put(filename, file);
            return file;
        }
    }

    public static AutoUpdatingPreloadedFile autoUpdatingPreloadedFile(String filename,
                                                                      String serverDirectoryUrl){
        if(sAutoUpdatingFileManager.containsKey(filename)){ // We have already created this file, get it from the cache
            return sAutoUpdatingFileManager.get(filename);
        } else { // We have no yet created this file, create a new one.
            AutoUpdatingPreloadedFile file = new AutoUpdatingPreloadedFile(filename, serverDirectoryUrl);
            sAutoUpdatingFileManager.put(filename, file);
            return file;
        }
    }
}