source: other-projects/nz-flag-design/trunk/similarity-2d/flag-functions.jsp@ 29784

  <%@ page import="java.io.*,java.util.*,java.awt.image.*,javax.imageio.*" %>
  <%!
    public int GCD(int a, int b) {
       if (b==0) return a;
       return GCD(b,a%b);
    }

    ArrayList<File> listFilesForFolder(final File folder, String matchExt) {
        ArrayList<File> fileList = new ArrayList<File>();

        for (final File fileEntry : folder.listFiles()) {
            if (fileEntry.isFile()) {
             if (fileEntry.getName().toLowerCase().endsWith(matchExt)) {
                fileList.add(fileEntry);
         }
            }
        }

    return fileList;
    }

    ArrayList<File> listFilesForFolderRecursive(final File folder, String matchExt) {
        ArrayList<File> fileList = new ArrayList<File>();

        for (final File fileEntry : folder.listFiles()) {
            if (fileEntry.isDirectory()) {
                listFilesForFolder(fileEntry,matchExt);
            } else {
             if (fileEntry.getName().toLowerCase().endsWith(matchExt)) {
                fileList.add(fileEntry);
         }
            }
        }

    return fileList;
    }

    public static Map<String, Integer> sortByComparator(Map<String, Integer> unsortMap) 
    {
 
    // Convert Map to List
    List<Map.Entry<String, Integer>> list 
      = new LinkedList<Map.Entry<String, Integer>>(unsortMap.entrySet());
 
    // Sort list with comparator, to compare the Map values
    Collections.sort(list, new Comparator<Map.Entry<String, Integer>>() {
          public int compare(Map.Entry<String, Integer> o1,
                                 Map.Entry<String, Integer> o2) {
              return (o2.getValue()).compareTo(o1.getValue());
          }
    });
 
    // Convert sorted map back to a Map
    Map<String, Integer> sortedMap = new LinkedHashMap<String, Integer>();
    for (Iterator<Map.Entry<String, Integer>> it = list.iterator(); it.hasNext();) {
        Map.Entry<String, Integer> entry = it.next();
        sortedMap.put(entry.getKey(), entry.getValue());
    }
                                                
    return sortedMap;                           
    }
/* 
    public static void printMap(Map<String, Integer> map) 
    {
        for (Map.Entry<String, Integer> entry : map.entrySet()) {
        out.println("[Key] : " + entry.getKey() 
                         + " [Value] : " + entry.getValue() + "br />");
        }
    }
 */
   %>