Don't throw exception if source ID is missing in LHCb Tel40 Link condition

Rich/RichFutureDAQ/src/lib/RichTel40CableMapping.cpp

@@ -26,6 +26,10 @@
   if ( messenger() ) { ri_debug( __VA_ARGS__ ); }
 #define verbo( ... )                                                                                                   \
   if ( messenger() ) { ri_verbo( __VA_ARGS__ ); }
+#define warning( ... )                                                                                                 \
+  if ( messenger() ) { ri_warning( __VA_ARGS__ ); }
+#define info( ... )                                                                                                    \
+  if ( messenger() ) { ri_info( __VA_ARGS__ ); }
 
 // boost
 #include "boost/container/static_vector.hpp"
@@ -156,21 +160,23 @@ void Tel40CableMapping::fillCableMaps( const LHCb::Detector::DeLHCb&
         LHCb::RichSmartID smartID( rich, panel, LHCb::RichSmartID::MaPMTID );
         smartID.setLargePMT( isLargePMT );
 
+        // Is link active. Start with value in RICH condition.
+        bool linkIsActive = ( 0 != status );
 #ifdef USE_DD4HEP
         // Use link status flag from general LHCb condition instead of from RICH condition.
         const auto linksActive = lhcb.tell40link( sourceID.data() );
         if ( !linksActive.has_value() ) {
-          throw Rich::Exception( "Source ID '" + std::to_string( sourceID.data() ) +
-                                 "' is missing in LHCb Tel40 Link condition data" );
+          warning( "Source ID '", sourceID.data(), "' is missing in LHCb Tel40 Link condition", endmsg );
+        } else {
+          // LHCb general condition has this source ID so use its value instead.
+          linkIsActive = linksActive.value().isEnabled( link.data() );
+          // temporary sanity check
+          assert( status == linkIsActive );
         }
-        const bool linkIsActive = linksActive.value().isEnabled( link.data() );
-        // temporary sanity check
-        assert( status == linkIsActive );
 #else
         // with DetDesc just use RICH value
         // Eventually once DetDesc is dropped the use of the RICH status code can be dropped
         // entirely both here and from the condition itself in dd4hep.
-        const bool linkIsActive = ( 0 != status );
 #endif
 
         // link data struct