Task #3376: Parset changes required to fix build

RTCP/Interface/include/Interface/Parset.h

@@ -192,6 +192,7 @@ class Parset: public ParameterSet
 
     unsigned			nrBeams() const;
     std::string                 beamTarget(unsigned beam) const;
+    double                      beamDuration(unsigned beam) const;
 
     unsigned			nrPencilBeams(unsigned beam) const;
     std::vector<unsigned>	nrPencilBeams() const;

RTCP/Interface/src/Parset.cc

@@ -442,6 +442,18 @@ string Parset::beamTarget(unsigned beam) const
   return getString(key, "");
 }
 
+double Parset::beamDuration(unsigned beam) const
+{
+  string key = str(boost::format("Observation.Beam[%u].duration") % beam);
+  double val = getDouble(key, 0.0);
+
+  // a sane default
+  if (val == 0.0)
+    val = stopTime() - startTime();
+
+  return val;
+}
+
 
 std::vector<double> Parset::getPencilBeam(unsigned beam, unsigned pencil) const
 {