Changeset 11885 for branches/ProgrammableProblem/HeuristicLab.Problems.Programmable/3.3/New/Scripts

Timestamp:

02/04/15 13:28:37 (9 years ago)

Author:

abeham

Message:

#2174:

• Some refactorings and bug fixes
• Renamed (Binary|Integer|Real)Encoding to (Binary|Integer|Real)VectorEncoding
• Improved error messages when compiling programmable problems

Location:

branches/ProgrammableProblem/HeuristicLab.Problems.Programmable/3.3/New/Scripts

Files:

• ProblemDefinitionScript.cs (modified) (1 diff)
• ProblemDefinitionScriptException.cs (added)

branches/ProgrammableProblem/HeuristicLab.Problems.Programmable/3.3/New/Scripts/ProblemDefinitionScript.cs

@@ -71 +71 @@
       var assembly = base.Compile();
       var types = assembly.GetTypes();
+      if (!types.Any(x => typeof(CompiledProblemDefinition).IsAssignableFrom(x)))
+        throw new ProblemDefinitionScriptException("The compiled code doesn't contain a problem definition." + Environment.NewLine + "The problem definition must be a subclass of CompiledProblemDefinition.");
+      if (types.Count(x => typeof(CompiledProblemDefinition).IsAssignableFrom(x)) > 1)
+        throw new ProblemDefinitionScriptException("The compiled code contains multiple problem definitions." + Environment.NewLine + "Only one subclass of CompiledProblemDefinition is allowed.");
+
+      CompiledProblemDefinition inst;
       try {
-        var inst = (CompiledProblemDefinition)Activator.CreateInstance(types.First(x => typeof(CompiledProblemDefinition).IsAssignableFrom(x)));
+        inst = (CompiledProblemDefinition)Activator.CreateInstance(types.Single(x => typeof(CompiledProblemDefinition).IsAssignableFrom(x)));
+      } catch (Exception e) {
+        compiledProblemDefinition = null;
+        throw new ProblemDefinitionScriptException("Instantiating the problem definition failed." + Environment.NewLine + "Check your default constructor.", e);
+      }
+
+      try {
         inst.vars = new Variables(VariableStore);
         inst.Initialize();
+      } catch (Exception e) {
+        compiledProblemDefinition = null;
+        throw new ProblemDefinitionScriptException("Initializing the problem definition failed." + Environment.NewLine + "Check your Initialize() method.", e);
+      }
+
+      try {
         CompiledProblemDefinition = inst;
       } catch (Exception e) {
         compiledProblemDefinition = null;
-        throw;
+        throw new ProblemDefinitionScriptException("Using the problem definition in the problem failed." + Environment.NewLine + "Examine this error message carefully (often there is an issue with the defined encoding).", e);
       }
+
       return assembly;
     }