WIP: Several:

- Changed to namespace selx
- Combined componentbase classes and based it on itkLightObject
- Initial combination of example components
- Made templated ComponentFactory to replace all specific factories

Modules/Core/ComponentInterface/include/ComponentBase.h

 #ifndef ComponentBase_h
 #define ComponentBase_h
 
+#include "itkLightObject.h"
+
+#include "itkObjectFactory.h"
+//#include "itkComponentBase.h"
+#include <list>
 #include <iostream>
-#include <cstring>
-namespace elx
+#include <fstream>
+#include <string>
+#include <map>
+
+namespace selx
 {
-  enum interfaceStatus { success, noaccepter, noprovider };
 
-  class ComponentBase {
+  class ComponentBase : public itk::LightObject
+  {
   public:
+    /** Standard class typedefs */
+    typedef ComponentBase   Self;
+    typedef itk::LightObject        Superclass;
+    typedef itk::SmartPointer< Self >      Pointer;
+
+    /** Run-time type information (and related methods). */
+    itkTypeMacro(ComponentBase, Superclass);
+
+    typedef std::map<std::string, std::string> CriteriaType;
+    typedef std::pair<std::string, std::string> CriteriumType;
+
+    enum interfaceStatus { success, noaccepter, noprovider };
+
     virtual interfaceStatus ConnectFrom(const char *, ComponentBase*) = 0;
     virtual int ConnectFrom(ComponentBase*) = 0;
-  //protected:
+    virtual bool MeetsCriteria(const CriteriaType &criteria) = 0;
+
+  protected:
+    ComponentBase() {};
     virtual ~ComponentBase() {};
+
   };
-} // end namespace elx
-#endif // #define ComponentBase_h
\ No newline at end of file
+
+} // end namespace selx
+
+
+#endif // ComponentBase_h

Modules/Core/ComponentInterface/include/GDOptimizer3rdPartyComponent.h

@@ -7,7 +7,7 @@
 #include "Metric3rdPartyWrapper.h"
 #include <string.h>
 
-namespace elx
+namespace selx
 {
 
   class GDOptimizer3rdPartyComponent : 
@@ -25,6 +25,9 @@ namespace elx
     int Set(MetricValueInterface*);
     int Set(MetricDerivativeInterface*);
     int Update();
+    virtual bool MeetsCriteria(const CriteriaType &criteria) { return false; };
+    static const char * GetName() { return "GDOptimizer3rdPartyComponent"; } ;
+    static const char * GetDescription() { return "GD Optimizer 3rd Party Component"; };
   };
-} //end namespace elx
+} //end namespace selx
 #endif // #define GDOptimizer3rdPartyComponent_h
\ No newline at end of file

Modules/Core/ComponentInterface/include/GDOptimizer4thPartyComponent.h

@@ -6,7 +6,7 @@
 #include "Example4thPartyCode.h"
 #include "Metric4thPartyWrapper.h"
 
-namespace elx
+namespace selx
 {
   // wrapping into components: 
   class GDOptimizer4thPartyComponent : 
@@ -28,7 +28,10 @@ namespace elx
     //template <class ConflictinUpdateInterface> virtual int Update() { return 5; };
     // "error" : member function templates cannot be virtual
     int Update(ConflictinUpdateInterface*) { return 5; };
+    virtual bool MeetsCriteria(const CriteriaType &criteria) { return false; };
+    static const char * GetName(){ return "GDOptimizer4thPartyComponent"; };
+    static const char * GetDescription(){ return "GD Optimizer 4th Party Component"; };
   };
 
-} //end namespace elx
+} //end namespace selx
 #endif // #define GDOptimizer4thPartyComponent_h
\ No newline at end of file

Modules/Core/ComponentInterface/include/InterfaceTraits.h

@@ -3,7 +3,7 @@
 
 #include "Interfaces.h"
 
-namespace elx
+namespace selx
 {
 // Traits to get printable interface name
 // default implementation
@@ -12,6 +12,7 @@ struct InterfaceName
 {
   static const char* Get()
   {
+    static_assert(false, "Please implement a template specialization for the appropriate InterfaceName")
     return typeid(T).name();
   }
 };
@@ -43,6 +44,16 @@ struct InterfaceName < OptimizerUpdateInterface >
   }
 };
 
+template <>
+struct InterfaceName < TransformedImageInterface >
+{
+  static const char* Get()
+  {
+    return "TransformedImageInterface";
+  }
+};
+
+
 
 // partial specialization of InterfaceName
 template<template<typename> class TT, typename T1>
@@ -63,7 +74,7 @@ struct AcceptorInterfaceName
   }
 };
 
-} // end namespace elx
+} // end namespace selx
 
 
 #endif // #define InterfaceTraits_h
\ No newline at end of file

Modules/Core/ComponentInterface/include/Interfaces.h

@@ -2,60 +2,66 @@
 #define Interfaces_h
 
 #include "ComponentBase.h"
-#include "InterfaceTraits.h"
 #include <typeinfo>
 
-namespace elx
+namespace selx
 {
-// Define the providing interfaces abstractly
-class MetricDerivativeInterface {
+  // Define the providing interfaces abstractly
+  class MetricDerivativeInterface {
   public:
     virtual int GetDerivative() = 0;
-};
+  };
 
-class MetricValueInterface {
+  class MetricValueInterface {
   public:
     virtual int GetValue() = 0;
-};
+  };
 
-class OptimizerUpdateInterface {
-public:
-  virtual int Update() = 0;
-};
+  class OptimizerUpdateInterface {
+  public:
+    virtual int Update() = 0;
+  };
 
-class ConflictinUpdateInterface {
-public:
- // "error" : member function templates cannot be virtual
- // template <class ConflictinUpdateInterface> virtual int Update() = 0;
-  //TODO http://en.cppreference.com/w/cpp/language/member_template
+  class TransformedImageInterface {
+  public:
+    virtual int GetTransformedImage() = 0;
+  };
 
-  //TODO solution: http://stackoverflow.com/questions/2004820/inherit-interfaces-which-share-a-method-name
-  //TODO better?: http://stackoverflow.com/questions/18398409/c-inherit-from-multiple-base-classes-with-the-same-virtual-function-name
-  virtual int Update(ConflictinUpdateInterface*) = 0;
-};
+  class ConflictinUpdateInterface {
+  public:
+    // "error" : member function templates cannot be virtual
+    // template <class ConflictinUpdateInterface> virtual int Update() = 0;
+    //TODO http://en.cppreference.com/w/cpp/language/member_template
 
-// Define the accepting interfaces as templated by the providing interface
+    //TODO solution: http://stackoverflow.com/questions/2004820/inherit-interfaces-which-share-a-method-name
+    //TODO better?: http://stackoverflow.com/questions/18398409/c-inherit-from-multiple-base-classes-with-the-same-virtual-function-name
+    virtual int Update(ConflictinUpdateInterface*) = 0;
+  };
 
-template<class InterfaceT>
-class InterfaceAcceptor {
-public:
 
-  // Set() is called by a succesfull Connect()
-  // The implementation of Set() must be provided by component developers. 
-  virtual int Set(InterfaceT*) = 0; 
 
-  // Connect tries to connect this accepting interface with all interfaces of the provider component.
-  int Connect(ComponentBase*); 
+  // Define the accepting interfaces as templated by the providing interface
 
-private:
-  bool isSet;
-};
+  template<class InterfaceT>
+  class InterfaceAcceptor {
+  public:
+
+    // Set() is called by a succesfull Connect()
+    // The implementation of Set() must be provided by component developers. 
+    virtual int Set(InterfaceT*) = 0;
+
+    // Connect tries to connect this accepting interface with all interfaces of the provider component.
+    int Connect(ComponentBase*);
+
+  private:
+    bool isSet;
+  };
 
 template<typename ... RestInterfaces>
 class Accepting
 {
   public:
-    interfaceStatus ConnectFromImpl(const char *, ComponentBase*) { return interfaceStatus::noaccepter; }; //no interface called interfacename ;
+    ComponentBase::interfaceStatus ConnectFromImpl(const char *, ComponentBase*) { return ComponentBase::interfaceStatus::noaccepter; }; //no interface called interfacename ;
     int ConnectFromImpl(ComponentBase*) { return 0; }; //Empty RestInterfaces does 0 successful connects ;
 };
 
@@ -63,7 +69,7 @@ template<typename FirstInterface, typename ... RestInterfaces>
 class Accepting<FirstInterface, RestInterfaces... > : public InterfaceAcceptor<FirstInterface>, public Accepting< RestInterfaces ... >
 {
 public:
-  interfaceStatus ConnectFromImpl(const char *, ComponentBase*);
+  ComponentBase::interfaceStatus ConnectFromImpl(const char *, ComponentBase*);
   int ConnectFromImpl(ComponentBase*);
 };
 
@@ -80,7 +86,7 @@ class Implements : public AcceptingInterfaces, public ProvidingInterfaces, publi
     virtual int ConnectFrom(ComponentBase*);
 };
 
-} // end namespace elx
+} // end namespace selx
 
 #ifndef ITK_MANUAL_INSTANTIATION
 #include "Interfaces.hxx"

Modules/Core/ComponentInterface/include/Interfaces.hxx

@@ -2,7 +2,7 @@
 #define Interfaces_hxx
 
 #include "InterfaceTraits.h"
-namespace elx
+namespace selx
 {
 template<class InterfaceT>
 int InterfaceAcceptor<InterfaceT>::Connect(ComponentBase* providerComponent){
@@ -19,7 +19,7 @@ int InterfaceAcceptor<InterfaceT>::Connect(ComponentBase* providerComponent){
 }
 
 template<typename AcceptingInterfaces, typename ProvidingInterfaces>
-interfaceStatus Implements<AcceptingInterfaces, ProvidingInterfaces>::ConnectFrom(const char * interfacename, ComponentBase* other)
+ComponentBase::interfaceStatus Implements<AcceptingInterfaces, ProvidingInterfaces>::ConnectFrom(const char * interfacename, ComponentBase* other)
 {
   return AcceptingInterfaces::ConnectFromImpl(interfacename, other);
 }
@@ -31,7 +31,7 @@ int Implements<AcceptingInterfaces, ProvidingInterfaces>::ConnectFrom(ComponentB
 }
 
 template<typename FirstInterface, typename ... RestInterfaces>
-interfaceStatus Accepting<FirstInterface, RestInterfaces... >::ConnectFromImpl(const char * interfacename, ComponentBase* other)
+ComponentBase::interfaceStatus Accepting<FirstInterface, RestInterfaces... >::ConnectFromImpl(const char * interfacename, ComponentBase* other)
 {
   // does our component have an accepting interface called interfacename? 
   if (0 ==std::strcmp(InterfaceName<InterfaceAcceptor<FirstInterface>>::Get(), interfacename))
@@ -43,12 +43,12 @@ interfaceStatus Accepting<FirstInterface, RestInterfaces... >::ConnectFromImpl(c
     if (1 == acceptIF->Connect(other))
     {
       //success. By terminating this function, we assume only one interface listens to interfacename and that one connection with the other component can be made by this name
-      return interfaceStatus::success;
+      return ComponentBase::interfaceStatus::success;
     }
     else
     {
       // interfacename was found, but other component doesn't match
-      return interfaceStatus::noprovider;
+      return ComponentBase::interfaceStatus::noprovider;
     }
   }
   return Accepting< RestInterfaces ... >::ConnectFromImpl(interfacename, other);
@@ -65,7 +65,7 @@ int Accepting<FirstInterface, RestInterfaces... >::ConnectFromImpl(ComponentBase
   return acceptIF->Connect(other) + Accepting< RestInterfaces ... >::ConnectFromImpl(other);
 }
 
-} // end namespace elx
+} // end namespace selx
 
 
 #endif // #define Interfaces_hxx
\ No newline at end of file

Modules/Core/ComponentInterface/include/Metric3rdPartyWrapper.h

@@ -3,7 +3,7 @@
 
 #include "Example3rdPartyCode.h"
 #include "Interfaces.hxx"
-namespace elx
+namespace selx
 {
 // An Optimizer3rdParty expects that Metric3rdParty will be set as input. All accepted interfaces by the Optimizer3rdPartyCompoment will be delegated to the Metric3rdPartyWrapper object.
   class Metric3rdPartyWrapper : public Example3rdParty::Metric3rdPartyBase  {
@@ -16,5 +16,5 @@ private:
   MetricValueInterface* metricval;
   MetricDerivativeInterface* metricderiv;
 };
-} // end namespace elx
+} // end namespace selx
 #endif // #define Metric3rdPartyWrapper_h
\ No newline at end of file

Modules/Core/ComponentInterface/include/Metric4thPartyWrapper.h

@@ -3,7 +3,7 @@
 
 #include "Example4thPartyCode.h"
 #include "Interfaces.hxx"
-namespace elx
+namespace selx
 {
 // An Optimizer4thParty expects that Metric4thParty will be set as input. All accepted interfaces by the Optimizer4thPartyCompoment will be delegated to the Metric4thPartyWrapper object.
   class Metric4thPartyWrapper : public Example4thParty::Metric4thPartyBase  {
@@ -13,5 +13,5 @@ public:
 private:
   MetricValueInterface* metricval;
 };
-} // end namespace elx
+} // end namespace selx
 #endif // #define Metric3rdPartyWrapper_h
\ No newline at end of file

Modules/Core/ComponentInterface/include/SSDMetric3rdPartyComponent.h

@@ -5,7 +5,7 @@
 #include "Interfaces.hxx"
 #include "Example3rdPartyCode.h"
 
-namespace elx
+namespace selx
 {
   // SSDMetric3rdPartyComponent provides a value and a derivative
   class SSDMetric3rdPartyComponent : 
@@ -20,6 +20,9 @@ namespace elx
     Example3rdParty::SSDMetric3rdParty* theImplementation;
     int GetValue();
     int GetDerivative();
+    virtual bool MeetsCriteria(const CriteriaType &criteria) { return false; };
+    static const char * GetName(){ return "SSDMetric3rdPartyComponent"; }
+    static const char * GetDescription(){ return "SSD Metric 3rd Party Component"; };
   };
-} //end namespace elx
+} //end namespace selx
 #endif // #define SSDMetric3rdPartyComponent_h
\ No newline at end of file

Modules/Core/ComponentInterface/include/SSDMetric4thPartyComponent.h

@@ -5,7 +5,7 @@
 #include "Interfaces.hxx"
 #include "Example4thPartyCode.h"
 
-namespace elx
+namespace selx
 {
   // SSDMetric4thPartyComponent provides only a value and not a derivative
   class SSDMetric4thPartyComponent : 
@@ -19,6 +19,10 @@ namespace elx
     virtual ~SSDMetric4thPartyComponent();
     Example4thParty::SSDMetric4thParty* theImplementation;
     int GetValue();
+    virtual bool MeetsCriteria(const CriteriaType &criteria) { return false; };
+    static const char * GetName(){ return "SSDMetric4thPartyComponent"; };
+    static const char * GetDescription(){ return "SSD Metric 4th Party Component"; };
+    
   };
-} //end namespace elx
+} //end namespace selx
 #endif // #define SSDMetric4thPartyComponent_h
\ No newline at end of file

Modules/Core/ComponentInterface/src/GDOptimizer3rdPartyComponent.cxx

 #include "GDOptimizer3rdPartyComponent.h"
 
-namespace elx
+namespace selx
 {
 GDOptimizer3rdPartyComponent::GDOptimizer3rdPartyComponent()
 {
@@ -29,4 +29,4 @@ int GDOptimizer3rdPartyComponent::Update()
   this->theImplementation->SetMetric(this->MetricObject);
   return this->theImplementation->Optimize(); // 3rd party specific call
 }
-} //end namespace elx
\ No newline at end of file
+} //end namespace selx
\ No newline at end of file

Modules/Core/ComponentInterface/src/GDOptimizer4thPartyComponent.cxx

 #include "GDOptimizer4thPartyComponent.h"
 
-namespace elx
+namespace selx
 {
 
 GDOptimizer4thPartyComponent::GDOptimizer4thPartyComponent()
@@ -26,4 +26,4 @@ int GDOptimizer4thPartyComponent::Update()
   this->theImplementation->SetMetric(this->MetricObject);
   return this->theImplementation->DoOptimization(); // 4th party specific call
 }
-} //end namespace elx
\ No newline at end of file
+} //end namespace selx
\ No newline at end of file

Modules/Core/ComponentInterface/src/Metric3rdPartyWrapper.cxx

 #include "Metric3rdPartyWrapper.h"
 
-namespace elx
+namespace selx
 {
 void Metric3rdPartyWrapper::SetMetricValueComponent(MetricValueInterface* metricValueComponent)
 {
@@ -21,4 +21,4 @@ int Metric3rdPartyWrapper::GetDerivative()
 {
   return this->metricderiv->GetDerivative();
 }
-} // end namespace elx
\ No newline at end of file
+} // end namespace selx
\ No newline at end of file

Modules/Core/ComponentInterface/src/Metric4thPartyWrapper.cxx

 #include "Metric4thPartyWrapper.h"
 
-namespace elx
+namespace selx
 {
 void Metric4thPartyWrapper::SetMetricValueComponent(MetricValueInterface* metricValueComponent)
 {
@@ -12,4 +12,4 @@ int Metric4thPartyWrapper::GetCost()
   return this->metricval->GetValue();
 }
 
-} // end namespace elx
\ No newline at end of file
+} // end namespace selx
\ No newline at end of file

Modules/Core/ComponentInterface/src/SSDMetric3rdPartyComponent.cxx

 #include "SSDMetric3rdPartyComponent.h"
-namespace elx
+namespace selx
 {
 SSDMetric3rdPartyComponent::SSDMetric3rdPartyComponent()
 {
@@ -19,4 +19,4 @@ int SSDMetric3rdPartyComponent::GetValue()
 {
   return this->theImplementation->GetValue();
 };
-} //end namespace elx
\ No newline at end of file
+} //end namespace selx
\ No newline at end of file

Modules/Core/ComponentInterface/src/SSDMetric4thPartyComponent.cxx

 #include "SSDMetric4thPartyComponent.h"
-namespace elx
+namespace selx
 {
 
 SSDMetric4thPartyComponent::SSDMetric4thPartyComponent()
@@ -15,4 +15,4 @@ int SSDMetric4thPartyComponent::GetValue()
 {
   return this->theImplementation->GetCost(); // translate method name
 };
-} //end namespace elx
\ No newline at end of file
+} //end namespace selx
\ No newline at end of file

Modules/Core/Install/include/itkComponentFactory.h → Modules/Core/Install/include/ComponentSelector.h

@@ -15,33 +15,33 @@
  *  limitations under the License.
  *
  *=========================================================================*/
-#ifndef itkComponentFactory_h
-#define itkComponentFactory_h
+#ifndef itkComponentSelector_h
+#define itkComponentSelector_h
 
 #include "itkObjectFactory.h"
-#include "itkComponentBase.h"
+#include "ComponentBase.h"
 
-namespace itk
+namespace selx
 {
 /** \class ComponentFactor
  * \brief Create instances of MetaImageIO objects using an object factory.
  * \ingroup ITKIOMeta
  */
-class ComponentFactory:public Object
+class ComponentSelector:public itk::Object
 {
 public:
   /** Standard class typedefs. */
-  typedef ComponentFactory         Self;
+  typedef ComponentSelector         Self;
   typedef Object          Superclass;
-  typedef SmartPointer< Self >       Pointer;
-  typedef SmartPointer< const Self > ConstPointer;
+  typedef itk::SmartPointer< Self >       Pointer;
+  typedef itk::SmartPointer< const Self > ConstPointer;
 
 
   /** Class methods used to interface with the registered factories. */
   //virtual const char * GetITKSourceVersion() const { return ITK_SOURCE_VERSION; }
 
   /** Run-time type information (and related methods). */
-  itkTypeMacro(ComponentFactory, Object);
+  itkTypeMacro(ComponentSelector, Object);
 
   /** New macro for creation of through the object factory. */
   itkNewMacro(Self);
@@ -60,26 +60,23 @@ public:
   
   void UpdatePossibleComponents(void);
   
-  /** Create the appropriate ComponentIO depending on
-  *  the particulars of the file.
-  */
   ComponentBasePointer GetComponent(void);
   
   
 protected:
   mutable CriteriaType m_Criteria;
   mutable ComponentListType m_PossibleComponents;
-  ComponentFactory();
-  ~ComponentFactory();
+  ComponentSelector();
+  ~ComponentSelector();
 
 private:
-  ComponentFactory(const Self &); //purposely not implemented
+  ComponentSelector(const Self &); //purposely not implemented
   void operator=(const Self &);     //purposely not implemented
 };
-} // end namespace itk
+} // end namespace selx
 
 #ifndef ITK_MANUAL_INSTANTIATION
-#include "itkComponentFactory.hxx"
+#include "ComponentSelector.hxx"
 #endif
 
 #endif

Modules/Core/Install/include/itkComponentFactory.hxx → Modules/Core/Install/include/ComponentSelector.hxx

@@ -15,28 +15,28 @@
  *  limitations under the License.
  *
  *=========================================================================*/
-#ifndef itkComponentFactory_hxx
-#define itkComponentFactory_hxx
+#ifndef itkComponentSelector_hxx
+#define itkComponentSelector_hxx
 
-#include "itkComponentFactory.h"
+#include "ComponentSelector.h"
 
-namespace itk
+namespace selx
 {
 
-ComponentFactory::ComponentFactory()
+ComponentSelector::ComponentSelector()
   {
     this->m_PossibleComponents.clear();
   }
-ComponentFactory::~ComponentFactory()
+ComponentSelector::~ComponentSelector()
   {
   }
 
-void ComponentFactory::Initialize()
+void ComponentSelector::Initialize()
 {
-  std::list< LightObject::Pointer >     allobjects =
-    ObjectFactoryBase::CreateAllInstance("itkComponentBase");
+  std::list< itk::LightObject::Pointer >     allobjects =
+    itk::ObjectFactoryBase::CreateAllInstance("itkComponentBase");
 
-  for (std::list< LightObject::Pointer >::iterator i = allobjects.begin();
+  for (std::list< itk::LightObject::Pointer >::iterator i = allobjects.begin();
     i != allobjects.end(); ++i)
   {
     ComponentBase *io =
@@ -47,7 +47,7 @@ void ComponentFactory::Initialize()
     }
   }
 }
-void ComponentFactory::SetCriteria(const CriteriaType &criteria)
+void ComponentSelector::SetCriteria(const CriteriaType &criteria)
 {
   this->Initialize();
   this->m_Criteria = criteria;
@@ -55,7 +55,7 @@ void ComponentFactory::SetCriteria(const CriteriaType &criteria)
 
 }
 
-void ComponentFactory::AddCriteria(const CriteriaType &criteria)
+void ComponentSelector::AddCriteria(const CriteriaType &criteria)
 {
   this->m_Criteria.insert(criteria.begin(), criteria.end());
   this->Modified();
@@ -66,13 +66,13 @@ void ComponentFactory::AddCriteria(const CriteriaType &criteria)
 //  bool operator() (const ComponentBasePointer& component) { return !component->MeetsCriteria(this->m_Criteria) }
 //};
 
-void ComponentFactory::UpdatePossibleComponents()
+void ComponentSelector::UpdatePossibleComponents()
 {
   // Check each possible component if it meets the criteria
   // Using a Lambda function.
   this->m_PossibleComponents.remove_if([&](ComponentBasePointer component){ return !component->MeetsCriteria(this->m_Criteria); });
 }
-ComponentFactory::ComponentBasePointer ComponentFactory::GetComponent()
+ComponentSelector::ComponentBasePointer ComponentSelector::GetComponent()