- package junit.runner;
-
- import java.util.*;
-
- import junit.runner.*;
-
- /**
- * A custom quick sort with support to customize the swap behaviour.
- * NOTICE: We can't use the the sorting support from the JDK 1.2 collection
- * classes because of the JDK 1.1.7 compatibility.
- */
- public class Sorter {
- public static interface Swapper {
- public void swap(Vector values, int left, int right);
- }
-
- public static void sortStrings(Vector values , int left, int right, Swapper swapper) {
- int oleft= left;
- int oright= right;
- String mid= (String)values.elementAt((left + right) / 2);
- do {
- while (((String)(values.elementAt(left))).compareTo(mid) < 0)
- left++;
- while (mid.compareTo((String)(values.elementAt(right))) < 0)
- right--;
- if (left <= right) {
- swapper.swap(values, left, right);
- left++;
- right--;
- }
- } while (left <= right);
-
- if (oleft < right)
- sortStrings(values, oleft, right, swapper);
- if (left < oright)
- sortStrings(values, left, oright, swapper);
- }
- }