i2psnark:

- Add ratio sorter
 - Catch IAE on unstable sort
 - Only sort if necessary
 - toImg() cleanup

apps/i2psnark/java/src/org/klomp/snark/web/I2PSnarkServlet.java

@@ -1328,6 +1328,7 @@ public class I2PSnarkServlet extends BasicServlet {
 
     private List<Snark> getSortedSnarks(HttpServletRequest req) {
         ArrayList<Snark> rv = new ArrayList<Snark>(_manager.getTorrents());
+        if (rv.size() > 1) {
             int sort = 0;
             String ssort = req.getParameter("sort");
             if (ssort != null) {
@@ -1335,7 +1336,12 @@ public class I2PSnarkServlet extends BasicServlet {
                     sort = Integer.parseInt(ssort);
                 } catch (NumberFormatException nfe) {}
             }
+            try {
                 Collections.sort(rv, Sorters.getComparator(sort));
+            } catch (IllegalArgumentException iae) {
+                // Java 7 TimSort - may be unstable
+            }
+        }
         return rv;
     }
 
@@ -2982,7 +2988,7 @@ public class I2PSnarkServlet extends BasicServlet {
     
     /** @since 0.7.14 */
     private String toImg(String icon) {
-        return "<img alt=\"\" height=\"16\" width=\"16\" src=\"" + _contextPath + WARBASE + "icons/" + icon + ".png\">";
+        return toImg(icon, "");
     }
 
     /** @since 0.8.2 */

apps/i2psnark/java/src/org/klomp/snark/web/Sorters.java

@@ -29,6 +29,7 @@ class Sorters {
      *<li>8: Down rate
      *<li>9: Up rate
      *<li>10: Remaining (needed)
+     *<li>11: Upload ratio
      *</ul>
      */
     public static Comparator<Snark> getComparator(int type) {
@@ -90,6 +91,11 @@ class Sorters {
               rv = new RemainingComparator(rev);
               break;
 
+          case -11:
+          case 11:
+              rv = new RatioComparator(rev);
+              break;
+
         }
         return rv;
     }
@@ -279,4 +285,17 @@ class Sorters {
             return compLong(l.getUploadRate(), r.getUploadRate());
         }
     }
+
+    private static class RatioComparator extends Sort {
+
+        public RatioComparator(boolean rev) { super(rev); }
+
+        public int compareIt(Snark l, Snark r) {
+            long lt = l.getTotalLength();
+            long ld = lt > 0 ? ((4096 * l.getUploaded()) / (4096 * lt)) : 0;
+            long rt = r.getTotalLength();
+            long rd = rt > 0 ? ((4096 * r.getUploaded()) / (4096 * rt)) : 0;
+            return compLong(ld, rd);
+        }
+    }
 }