Changeset 2773 for trunk/sources/HeuristicLab.Parameters/3.3/LookupParameter.cs

Timestamp:

02/10/10 03:39:02 (15 years ago)

Author:

swagner

Message:

Operator architecture refactoring (#95)

• worked on parameters and operators

File:

• trunk/sources/HeuristicLab.Parameters/3.3/LookupParameter.cs (modified) (3 diffs)

trunk/sources/HeuristicLab.Parameters/3.3/LookupParameter.cs

@@ -74 +74 @@
     }
 
+    private IValueParameter<T> GetParameter(out string name) {
+      IValueParameter<T> valueParam = this as IValueParameter<T>;
+      ILookupParameter<T> lookupParam = this as ILookupParameter<T>;
+      ExecutionContext current = ExecutionContext;
+
+      name = Name;
+      while ((valueParam != null) && (lookupParam != null)) {
+        if ((valueParam != null) && (valueParam.Value != null)) return valueParam;
+        if (lookupParam != null) name = lookupParam.ActualName;
+
+        current = current.Parent;
+        while ((current != null) && !current.Operator.Parameters.ContainsKey(name))
+          current = current.Parent;
+
+        if (current != null) {
+          valueParam = current.Operator.Parameters[name] as IValueParameter<T>;
+          lookupParam = current.Operator.Parameters[name] as ILookupParameter<T>;
+          if ((valueParam == null) && (lookupParam == null))
+            throw new InvalidOperationException(
+              string.Format("Parameter look-up chain broken. Parameter \"{0}\" is not an \"{1}\" or an \"{2}\".",
+                            name,
+                            typeof(IValueParameter<T>).GetPrettyName(),
+                            typeof(ILookupParameter<T>).GetPrettyName())
+            );
+        } else {
+          valueParam = null;
+          lookupParam = null;
+        }
+      }
+      return null;
+    }
     private IVariable LookupVariable(string name) {
       IScope scope = ExecutionContext.Scope;
@@ -81 +112 @@
     }
     protected override IItem GetActualValue() {
-      string name = TranslateName(Name, ExecutionContext);
-      IVariable var = LookupVariable(name);
-      if (var != null) {
-        T value = var.Value as T;
-        if (value == null)
-          throw new InvalidOperationException(
-            string.Format("Type mismatch. Variable \"{0}\" does not contain a \"{1}\".",
-                          name,
-                          typeof(T).GetPrettyName())
-          );
-        return value;
+      string name;
+      // try to get local value from context stack
+      IValueParameter<T> param = GetParameter(out name);
+      if (param != null) return param.Value;
+      else {  // try to get variable from scope
+        IVariable var = LookupVariable(name);
+        if (var != null) {
+          T value = var.Value as T;
+          if (value == null)
+            throw new InvalidOperationException(
+              string.Format("Type mismatch. Variable \"{0}\" does not contain a \"{1}\".",
+                            name,
+                            typeof(T).GetPrettyName())
+            );
+          return value;
+        }
       }
       return null;
@@ -102 +138 @@
                         typeof(T).GetPrettyName())
         );
-      string name = TranslateName(Name, ExecutionContext);
-      IVariable var = LookupVariable(name);
-      if (var != null) var.Value = val;
-      else ExecutionContext.Scope.Variables.Add(new Variable(name, val));
+      // try to get local value from context stack
+      string name;
+      IValueParameter<T> param = GetParameter(out name);
+      if (param != null) param.Value = val;
+      else {  // try to get variable from scope
+        IVariable var = LookupVariable(name);
+        if (var != null) var.Value = val;
+        else ExecutionContext.Scope.Variables.Add(new Variable(name, value));
+      }
     }