/** Loads the trace file into this component. */
 public void load(String filename_) {
   try {
     setReader(new FileReader(filename_));
   } catch (Exception e_) {
     e_.printStackTrace();
   }
 }
 protected void dataArriveAtUpPort(Object data_, Port upPort_) {
   try {
     if (upPort_ == null || ((ByteStreamContract.Message) data_).isReport())
       tcpsink.dataArriveAtUpPort(data_, upPort_);
     else super.dataArriveAtUpPort(data_, upPort_);
   } catch (Exception e_) {
     if (e_ instanceof ClassCastException)
       error(data_, "dataArriveAtUpPort()", upPort, "unrecognized data: " + e_);
     else e_.printStackTrace();
   }
 }