ENH: add KMeansFileNamesHandler constructor

Modules/Applications/AppClassification/app/otbKMeansClassification.cxx

@@ -100,12 +100,10 @@ private:
   {
     if (IsParameterEnabled("vm") && HasValue("vm")) ConnectKMClassificationMask();
 
-    KMeansFileNamesHandler fileNames;
+    KMeansFileNamesHandler fileNames(GetParameterString("out"));
 
     const std::string fieldName = "field";
 
-    fileNames.CreateTemporaryFileNames(GetParameterString( "out" ));
-
     // Create an image envelope
     ComputeImageEnvelope(fileNames.tmpVectorFile);
     // Add a new field at the ImageEnvelope output file

Modules/Applications/AppClassification/include/otbClassKMeansBase.h

@@ -147,7 +147,7 @@ public:
     class KMeansFileNamesHandler
       {
       public :
-        void CreateTemporaryFileNames(const std::string &outPath)
+        KMeansFileNamesHandler(const std::string &outPath)
         {
           tmpVectorFile = outPath + "_imgEnvelope.shp";
           polyStatOutput = outPath + "_polyStats.xml";