Added getServletURL().

git-svn-id: https://samskivert.googlecode.com/svn/trunk@1045 6335cc39-0255-0410-8fd6-9bcaacd3b74c

projects/samskivert/src/java/com/samskivert/servlet/util/RequestUtils.java

@@ -1,5 +1,5 @@
 //
-// $Id: RequestUtils.java,v 1.5 2002/08/20 18:57:31 mdb Exp $
+// $Id: RequestUtils.java,v 1.6 2003/02/03 03:46:32 mdb Exp $
 //
 // samskivert library - useful routines for java programs
 // Copyright (C) 2001 Michael Bayne
@@ -88,4 +88,20 @@ public class RequestUtils
         }
         return buf.toString();
     }
+
+    /**
+     * Prepends the server, port and servlet context path to the supplied
+     * path, resulting in a fully-formed URL for requesting a servlet.
+     */
+    public static String getServletURL (HttpServletRequest req, String path)
+    {
+        StringBuffer buf = HttpUtils.getRequestURL(req);
+        String sname = req.getServletPath();
+        buf.delete(buf.length() - sname.length(), buf.length());
+        if (!path.startsWith("/")) {
+            buf.append("/");
+        }
+        buf.append(path);
+        return buf.toString();
+    }
 }