ENH: allow to access the splitter

Modules/Core/Streaming/include/otbStreamingManager.h

@@ -67,6 +67,7 @@ public:
   typedef typename ImageType::InternalPixelType PixelType;
 
   typedef otb::PipelineMemoryPrintCalculator::MemoryPrintType MemoryPrintType;
+  typedef itk::ImageRegionSplitterBase          AbstractSplitterType;
 
   /** Type macro */
   itkTypeMacro(StreamingManager, itk::LightObject);
@@ -74,6 +75,8 @@ public:
   /** Dimension of input image. */
   itkStaticConstMacro(ImageDimension, unsigned int, ImageType::ImageDimension);
 
+  const AbstractSplitterType * GetSplitter() const;
+
   /** Actually computes the stream divisions, according to the specified streaming mode,
    * eventually using the input parameter to estimate memory consumption */
   virtual void PrepareStreaming(itk::DataObject * input, const RegionType &region) = 0;
@@ -103,7 +106,6 @@ protected:
   RegionType m_Region;
 
   /** The splitter used to compute the different strips */
-  typedef itk::ImageRegionSplitterBase           AbstractSplitterType;
   typedef typename AbstractSplitterType::Pointer AbstractSplitterPointerType;
   AbstractSplitterPointerType m_Splitter;
 

Modules/Core/Streaming/include/otbStreamingManager.txx

@@ -39,6 +39,13 @@ StreamingManager<TImage>::~StreamingManager()
 {
 }
 
+template <class TImage>
+const typename StreamingManager<TImage>::AbstractSplitterType *
+StreamingManager<TImage>::GetSplitter() const
+{
+  return m_Splitter;
+}
+
 template <class TImage>
 typename StreamingManager<TImage>::MemoryPrintType
 StreamingManager<TImage>::GetActualAvailableRAMInBytes(MemoryPrintType availableRAMInMB)