sort config tabs

apps/routerconsole/java/src/net/i2p/router/web/ConfigNavHelper.java

 package net.i2p.router.web;
 
 import java.io.IOException;
+import java.text.Collator;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+import java.util.Locale;
 
 /**
  * Render the configuration menu at the top of all the config pages.
@@ -21,6 +27,27 @@ public class ConfigNavHelper extends HelperBase {
                                            _x("Clients"), _x("Peers"), _x("Keyring"), _x("Logging"), _x("Stats"),
                                            _x("Reseeding"), _x("Advanced") };
 
+    private static class Tab {
+        public final String page, title;
+        public Tab(String p, String t) {
+            page = p; title = t;
+        }
+    }
+
+    private class TabComparator implements Comparator<Tab> {
+         private static final long serialVersionUID = 1L;
+         private final Collator coll;
+
+         public TabComparator() {
+             super();
+             coll = Collator.getInstance(new Locale(Messages.getLanguage(_context)));
+         }
+
+         public int compare(Tab l, Tab r) {
+             return coll.compare(l.title, r.title);
+        }
+    }
+
     /**
      *  @param graphical false for text-mode browsers
      */
@@ -31,18 +58,23 @@ public class ConfigNavHelper extends HelperBase {
         boolean span = graphical && (theme == null || theme.equals(CSSHelper.DEFAULT_THEME));
         if (!span)
             buf.append("<center>");
+        List<Tab> tabs = new ArrayList<Tab>(pages.length);
         for (int i = 0; i < pages.length; i++) {
-            String page = "config" + pages[i];
+            tabs.add(new Tab(pages[i], _(titles[i])));
+        }
+        Collections.sort(tabs, new TabComparator());
+        for (int i = 0; i < tabs.size(); i++) {
+            String page = "config" + tabs.get(i).page;
             if (requestURI.endsWith(page) || requestURI.endsWith(page + ".jsp")) {
                 // we are there
                 if (span)
                     buf.append("<span class=\"tab2\">");
-                buf.append(_(titles[i]));
+                buf.append(tabs.get(i).title);
             } else {
                 // we are not there, make a link
                 if (span)
                     buf.append("<span class=\"tab\">");
-                buf.append("<a href=\"").append(page).append("\">").append(_(titles[i])).append("</a>");
+                buf.append("<a href=\"").append(page).append("\">").append(tabs.get(i).title).append("</a>");
             }
             if (span)
                 buf.append(" </span>\n");