added convertToKey function in TrendFile

src/main/java/fr/soleil/comete/bean/trend/controller/CometeTrendController.java

@@ -380,9 +380,11 @@ public class CometeTrendController {
                     hkey.setUseSuffix(false);
                     key = hkey;
                 }
+                if (key != null) {
                     keyMap.put(value, key);
                 }
             }
+        }
         return key;
     }
 

src/main/java/fr/soleil/comete/bean/trend/model/TrendFile.java

@@ -1134,6 +1134,10 @@ public class TrendFile {
         return attributeSource;
     }
 
+    public IKey convertToKey(String value) {
+        return controller.convertToKey(value);
+    }
+
     public static void main(String[] args) throws IOException {
         String fileName = "D:/TREND.txt";