X-Git-Url: https://git.creatis.insa-lyon.fr/pubgit/?a=blobdiff_plain;f=kernel%2Fsrc%2FbbtkFactory.cxx;h=ad64151ba1696592f5611f2095d42125f86b6155;hb=98e18224b83c6955a804d79d4e7083626ea8afcd;hp=6b4079344912f2c976bba2e3e209c044990f6d7e;hpb=4c9583068f75a2d91202f96c396c5ef73e04eb4b;p=bbtk.git

diff --git a/kernel/src/bbtkFactory.cxx b/kernel/src/bbtkFactory.cxx
index 6b40793..ad64151 100644
--- a/kernel/src/bbtkFactory.cxx
+++ b/kernel/src/bbtkFactory.cxx
@@ -1,22 +1,33 @@
-/*=========================================================================
-                                                                                
-Program:   bbtk
-Module:    $RCSfile: bbtkFactory.cxx,v $
-Language:  C++
-
-Date:      $Date: 2008/03/11 12:27:21 $
-Version:   $Revision: 1.30 $
-                                                                                
-
-Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
-l'Image). All rights reserved. See doc/license.txt or
-http://www.creatis.insa-lyon.fr/Public/bbtk/License.html for details.
+/*=========================================================================                                                                               
+  Program:   bbtk
+  Module:    $RCSfile: bbtkFactory.cxx,v $
+  Language:  C++
+  Date:      $Date: 2009/03/30 15:22:51 $
+  Version:   $Revision: 1.42 $
+=========================================================================*/
 
-This software is distributed WITHOUT ANY WARRANTY; without even
-the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
-PURPOSE.  See the above copyright notices for more information.
+/* ---------------------------------------------------------------------
+
+* Copyright (c) CREATIS-LRMN (Centre de Recherche en Imagerie Medicale)
+* Authors : Eduardo Davila, Laurent Guigues, Jean-Pierre Roux
+*
+*  This software is governed by the CeCILL-B license under French law and 
+*  abiding by the rules of distribution of free software. You can  use, 
+*  modify and/ or redistribute the software under the terms of the CeCILL-B 
+*  license as circulated by CEA, CNRS and INRIA at the following URL 
+*  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html 
+*  or in the file LICENSE.txt.
+*
+*  As a counterpart to the access to the source code and  rights to copy,
+*  modify and redistribute granted by the license, users are provided only
+*  with a limited warranty  and the software's author,  the holder of the
+*  economic rights,  and the successive licensors  have only  limited
+*  liability. 
+*
+*  The fact that you are presently reading this means that you have had
+*  knowledge of the CeCILL-B license and that you accept its terms.
+* ------------------------------------------------------------------------ */                                                                         
 
-=========================================================================*/
 /**
  *\file
  *\brief  Class bbtk::Factory : can load and unload dynamic libraries containing 
@@ -28,6 +39,7 @@ PURPOSE.  See the above copyright notices for more information.
 #include "bbtkConnection.h"
 #include "bbtkConfigurationFile.h"
 #include "bbtkUtilities.h"
+#include "bbtkConfigurationFile.h"
 
 #include <sys/stat.h> // for struct stat stFileInfo
 
@@ -37,17 +49,24 @@ PURPOSE.  See the above copyright notices for more information.
 
 #include <cctype>    // std::toupper
 
+#include <time.h>
 
 namespace bbtk
 {
-  typedef Package* (*PackageAccessor)();
-  typedef void (*PackageDeleteFunction)();
 
+  //===================================================================
+  /// Default ctor
+  Factory::Pointer Factory::New()
+  {
+    bbtkDebugMessage("Kernel",9,"Factory::New()"<<std::endl);
+    return MakePointer(new Factory());
+  }
+  //===================================================================
 
   //===================================================================
   /// Default ctor
   Factory::Factory()
-    : mExecuter(0)
+    : mExecuter()
   {
     bbtkDebugMessage("Kernel",7,"Factory::Factory()"<<std::endl);
   }
@@ -64,30 +83,10 @@ namespace bbtk
   //===================================================================
 
 
-  //===================================================================
-  void Factory::CloseAllPackages()
-  {
-    bbtkDebugMessageInc("Kernel",7,"Factory::CloseAllPackages()"<<std::endl);
-    while (mPackageMap.begin() != mPackageMap.end())
-      {
-        PackageMapType::iterator i = mPackageMap.begin();
-        ClosePackage(i);
-      }
-    bbtkDebugDecTab("Kernel",7);
-  }
-  //===================================================================
 
   //===================================================================
   void Factory::Reset()
   {
-    /*
-printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
-printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
-printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
-printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
-printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
-printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
-    */
     bbtkDebugMessageInc("Kernel",7,"Factory::Reset()"<<std::endl);
     CloseAllPackages();
     bbtkDebugDecTab("Kernel",7);
@@ -101,144 +100,26 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
                               std::string path)
   {
     
-#if defined(__GNUC__)
-    
-    void *handler;
-    handler = dlopen(libname.c_str(),
-		     BBTK_RTLD_TIME | BBTK_RTLD_SCOPE );
-    if (!handler)
-      {
-        // The following is *NOT* a debug time message :
-        // It's a user intended message.
-        // Please don't remove it.
-	bbtkError("Could not open shared library [" <<libname<<"] : "
-		  <<dlerror() << std::endl);
-	
-	return false; // try next path
-      }
-    
-    // The following is *NOT* a debug time message :
-    // It's a user intended message.
-    // Please don't remove it.
-    bbtkMessage("Output",2,"   -->[" <<libname<<"] found" << std::endl);
-    
-    // Loads the Package accessor
-    
-    std::string getpackname(pkgname);
-    getpackname += "GetPackage";
-    void *getpack = dlsym(handler, getpackname.c_str());
-    if (!getpack)
-      {
-	dlclose(handler);
-	bbtkError("Shared library ["<<libname<<"] is not a valid bbtk package."
-		  <<" Symbol ["<<getpackname<<"] :"<<dlerror());
-      }
-    
-    // Verifies that the Package delete function is present
-    std::string delfname(pkgname);
-    delfname += "DeletePackage";
-    void *delf = dlsym(handler, delfname.c_str());
-    if (!delf)
-      {
-	dlclose(handler);
-	bbtkError("Shared library ["<<libname<<"] is not a valid bbtk package."
-		  <<" Symbol ["<<delfname<<"] :"<<dlerror());
-      }
-    
-#elif defined(_WIN32)
-    
-    HINSTANCE handler;
-    
-    SetErrorMode(0);
-    handler = LoadLibrary(libname.c_str());
-    if (!handler)
-      {
-	// The following is *NOT* a debug time message :
-	// It's a user intended message.
-	// Please don't remove it.
-	bbtkError("Error loading library [" <<libname<<"]" << std::endl);
-	return false;// Problem with the found library
-      }
-    
-    bbtkMessage("Output",2,"   --->[" <<libname<<"] found" << std::endl);
-    
-    // Loads the Package accessor
-    
-    std::string getpackname(pkgname);
-    getpackname += "GetPackage";
-    void *getpack = GetProcAddress(handler, getpackname.c_str());
-    if (!getpack)
+    Package::Pointer p = Package::CreateFromDynamicLibrary(libname,
+							   pkgname,
+							   path);
+    if (p!=0)
       {
-	FreeLibrary(handler);
-	bbtkError("[1] Could not load package \""<<pkgname
-		  <<"\" : "<<getpackname<<" symbol not found (is it a bbtk package lib ?)");
-	// look how to get the error message on win
-	//<<dlerror());
+	//===================================================================
+	bbtkMessage("Output",2,p->GetName()<<" "
+		    <<p->GetVersion()
+		    <<" "
+		    <<p->GetAuthor() << " Category(s) :"
+		    <<p->GetCategory()
+		    <<std::endl);
+	bbtkMessage("Output",2,p->GetDescription()<<std::endl);
+	//===================================================================
+	p->AddFactory(GetThisPointer<Factory>());
+	mPackageMap[pkgname] = p;
+	return true;
       }
-    // Verifies that the Package delete function is present
-    std::string delfname(pkgname);
-    delfname += "DeletePackage";
-    void *delf = GetProcAddress(handler, delfname.c_str());
-    if (!delf)
-      {
-	FreeLibrary(handler);
-	bbtkError("[2] Could not load package \""<<pkgname
-		  <<"\" : "<<delfname<<" symbol not found (is it a bbtk package lib ?)");
-	// look how to get the error message on win
-	//<<dlerror());
-      }
-#else
-    bbtkError("neither __GNUC__ nor _WIN32 ?!? How did you compile ?");
-#endif
+    return false;
     
-    // Stores the package
-    PackageInfoType pack;
-    pack.mDynamicLibraryHandler = handler;
-    // Invokes the accessor to the PackageUnit pointer
-    pack.mPackage = ((PackageAccessor)getpack)();
-    
-    // Test bbtk build version ok
-    if ( pack.mPackage->GetBBTKVersion() != bbtk::GetVersion() )
-      {
-	std::string v(pack.mPackage->GetBBTKVersion());
-	UnLoadPackage(pkgname);
-	bbtkError("Cannot load package ["<<libname<<"]. "
-		  <<"Package build with bbtk version "
-		  << v
-		  << " whereas application build with version "
-		  << bbtk::GetVersion());
-      }
-
-    pack.mPackage->AddFactory(this);
-    mPackageMap[pkgname] = pack;
-    
-    std::string separator =
-      ConfigurationFile::GetInstance().Get_file_separator ();
-    //BBTK_STRINGIFY_SYMBOL(BBTK_DOC_REL_PATH)
-    std::string docreldoc = 
-      separator + "bbdoc" + separator + pkgname + separator + "index.html";
-    std::string reldoc = 
-      ".." + separator + ".." + docreldoc;
-    std::string doc = path + separator + ".." + separator
-      + BBTK_STRINGIFY_SYMBOL(BBTK_DOC_REL_PATH)
-      + docreldoc;
-    
-    pack.mPackage->SetDocURL(doc);
-    pack.mPackage->SetDocRelativeURL(reldoc);
-    
-    //===================================================================
-    bbtkMessage("Output",2,pack.mPackage->GetName()<<" "
-		<<pack.mPackage->GetVersion()
-		<<" (bbtk "
-		<<pack.mPackage->GetBBTKVersion()<<") "
-		<<pack.mPackage->GetAuthor() << " Category(s) :"
-		<<pack.mPackage->GetCategory()
-		<<std::endl);
-    bbtkMessage("Output",2,pack.mPackage->GetDescription()<<std::endl);
-    //===================================================================
-    
-    bbtkDebugDecTab("Kernel",7);
-    return true;
   }
   
   //===================================================================
@@ -269,7 +150,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
   // lastname : string before the last / (if any), or user supplied name
 
     bbtkDebugMessageInc("Kernel",7,"Factory::LoadPackage(\""<<name<<"\")"<<std::endl);
-    bbtkMessage("Debug",1,"Factory::LoadPackage(\""<<name<<"\")"<<std::endl);
+    bbtkMessage("debug",1,"Factory::LoadPackage(\""<<name<<"\")"<<std::endl);
 
     std::vector<std::string> package_paths;
     std::string libname;  // full path library name
@@ -278,8 +159,8 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     std::string upath;
     pkgname = Utilities::ExtractPackageName(name,upath);
 
-    bbtkMessage("Debug",1,"Package name ["<<pkgname<<"]"<<std::endl);
-    bbtkMessage("Debug",1,"Package path ["<<upath<<"]"<<std::endl);
+    bbtkMessage("debug",1,"Package name ["<<pkgname<<"]"<<std::endl);
+    bbtkMessage("debug",1,"Package path ["<<upath<<"]"<<std::endl);
 
     // no loading package if already loaded
     PackageMapType::iterator iUnload;
@@ -363,7 +244,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
 
         libname = Utilities::MakeLibnameFromPath(path, pkgname);
 
-        bbtkMessage("Debug",2,"-> Trying to load [" << libname << "]" <<std::endl);
+        bbtkMessage("debug",2,"-> Trying to load [" << libname << "]" <<std::endl);
 
       // Check if library exists           
         if ( !Utilities::FileExists(libname) )
@@ -382,9 +263,9 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
         ok = DoLoadPackage( libname, pkgname, path);
         if (ok)
         {
-           bbtkMessage("Debug",2,"   OK"<<std::endl);
-           break; // a package was found; we stop iterating
+           bbtkMessage("debug",2,"   OK"<<std::endl);
         }
+	break; // we stop iterating even if error : have to signal it to user
     } //------------------ // end for ( package_paths.begin();i!=package_paths.end() )
 
 }
@@ -399,10 +280,12 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
       {
 #if defined(__GNUC__)
         bbtkError("Could not load package ["<< pkgname
-                  <<"] :" << std::endl << "   " << dlerror());
+                  <<"] :" << std::endl 
+		  << "  Opening "<<libname<<" failed"
+		  << "  Reason: "<< dlerror());
 #elif defined(_WIN32)
         bbtkError("Could not load package ["<<pkgname
-                 <<"] : " << std::endl << "   " <<libname<<" not found");
+		  <<"] :"<< std::endl << "   Error loading " <<libname);
 
     // look how to get the error message on win
     //<<dlerror());
@@ -438,6 +321,39 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
   //===================================================================
 
 
+  //===================================================================
+  void Factory::CloseAllPackages()
+  {
+    bbtkDebugMessageInc("Kernel",7,"Factory::CloseAllPackages()"<<std::endl);
+    
+    std::vector< Package::WeakPointer > mAlive;  
+    do {
+      mAlive.clear();  
+      while (mPackageMap.begin() != mPackageMap.end())
+	{
+	  PackageMapType::iterator i = mPackageMap.begin();
+	  Package::WeakPointer p = i->second;
+	  ClosePackage(i);
+	  if (p.lock()) mAlive.push_back(p);
+	}
+      std::vector< Package::WeakPointer >::iterator i;
+      for (i=mAlive.begin();i!=mAlive.end();++i)
+	{
+	  // If not dead : reinsert
+	  if (i->lock())
+	    {
+	      bbtkDebugMessage("Kernel",7,"Package "<<i->lock()->GetName()
+			       <<" still alive"<<std::endl);
+	      // InsertPackage(i->lock());
+	    }
+	}      
+    }
+    while (mPackageMap.size()>0);
+
+    bbtkDebugDecTab("Kernel",7);
+  }
+  //===================================================================
+
   //===================================================================
   /// \brief Close the package referenced by the iterator 
  ///
@@ -453,68 +369,20 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
  void Factory::ClosePackage(PackageMapType::iterator& i) 
   {   
      bbtkDebugMessageInc("Kernel",7,"Factory::ClosePackage(\""
-                         <<i->second.mPackage->GetName()
+                         <<i->second->GetName()
                         <<"\")"<<std::endl);
 
      
      // Removes this from the set of factories which use the package
-     i->second.mPackage->RemoveFactory(this);
-     
-     // If no more factory which use it 
-     if (i->second.mPackage->GetFactorySet().empty())
+     i->second->RemoveFactory(GetThisPointer<Factory>());
+     Package::WeakPointer p = i->second;
+     // remove the entry in the map
+     mPackageMap.erase(i);
+     // Release the package if not already destroyed
+     if (p.lock()) 
        {
-	 // If it is a dynamically loaded package	
-	 if (i->second.mDynamicLibraryHandler) 
-	   {
-	     
-	     
-	     // Loads the Package delete function
-	     
-	     std::string delfname(i->second.mPackage->GetName());
-	     delfname += "DeletePackage";
-#if defined(__GNUC__)     
-	     void *delf = dlsym(i->second.mDynamicLibraryHandler, delfname.c_str());
-	     if (!delf)
-	       {
-		 bbtkError("could not close package \""
-			   <<i->second.mPackage->GetName()
-			   <<"\" :"<<dlerror());
-	       }    
-#elif defined(_WIN32)
-	     void *delf = GetProcAddress(i->second.mDynamicLibraryHandler, 
-					 delfname.c_str());
-	     if (!delf)
-	       {  
-		 bbtkError("could not close package \""
-			   <<i->second.mPackage->GetName()
-			   <<"\" : "<<delfname
-			   <<" symbol not found (how did you open it ???");
-		 //<<"\" :"<<dlerror());
-	       }    
-#endif     
-	     
-	     // deletes the package
-	     ((PackageDeleteFunction)delf)();
-	     
-	     // closes the dl handler
-#if defined(__GNUC__)  
-	     dlclose(i->second.mDynamicLibraryHandler);  
-#elif defined(_WIN32)
-	     
-	     FreeLibrary(i->second.mDynamicLibraryHandler);
-#endif
-	   }
-
-	 else 
-	   {  
-	     // If it is a manually inserted package : delete it normally
-	     delete i->second.mPackage;
-	   }
+	 Package::Release(p);
        }
-     
-     // in any cases remove the entry in the map
-     mPackageMap.erase(i);
-
      bbtkDebugDecTab("Kernel",7);
   }
   //===================================================================
@@ -532,7 +400,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     {
       bbtkMessage("Help",1, i->first << std::endl);
       if (details) {
-         i->second.mPackage->PrintBlackBoxes(false,adaptors);
+         i->second->PrintBlackBoxes(false,adaptors);
       }
     }
 
@@ -552,22 +420,22 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
       {
       bbtkMessage("Help",1, "Package "<<i->first<<" ");
       
-      if (i->second.mPackage->GetVersion().length()>0)
-        bbtkMessageCont("Help",1,"v" <<i->second.mPackage->GetVersion());
+      if (i->second->GetVersion().length()>0)
+        bbtkMessageCont("Help",1,"v" <<i->second->GetVersion());
         
-      if (i->second.mPackage->GetAuthor().length()>0)
-        bbtkMessageCont("Help",1,"- "<<i->second.mPackage->GetAuthor());
+      if (i->second->GetAuthor().length()>0)
+        bbtkMessageCont("Help",1,"- "<<i->second->GetAuthor());
         
-      if (i->second.mPackage->GetCategory().length()>0)
-        bbtkMessageCont("Help",1,"- "<<i->second.mPackage->GetCategory());        
+      if (i->second->GetCategory().length()>0)
+        bbtkMessageCont("Help",1,"- "<<i->second->GetCategory());        
         
       bbtkMessageCont("Help",1,std::endl);
       bbtkIncTab("Help",1);
-      bbtkMessage("Help",1,i->second.mPackage->GetDescription()<<std::endl);
-      if (i->second.mPackage->GetNumberOfBlackBoxes()>0) 
+      bbtkMessage("Help",1,i->second->GetDescription()<<std::endl);
+      if (i->second->GetNumberOfBlackBoxes()>0) 
         {
           bbtkMessage("Help",1, "Black boxes : "<<std::endl);
-          i->second.mPackage->PrintBlackBoxes(true,adaptors);
+          i->second->PrintBlackBoxes(true,adaptors);
         }
       else 
         {
@@ -599,10 +467,10 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-      if (i->second.mPackage->ContainsBlackBox(name)) 
+      if (i->second->ContainsBlackBox(name)) 
         {
-          i->second.mPackage->HelpBlackBox(name,full);
-	      package = i->second.mPackage->GetName();
+          i->second->HelpBlackBox(name,full);
+	      package = i->second->GetName();
           found = true;
         }
       }
@@ -619,16 +487,13 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
 
   //=================================================================== 
   /// Inserts a package in the factory
-  void Factory::InsertPackage( Package* p )
+  void Factory::InsertPackage( Package::Pointer p )
   {
     bbtkDebugMessageInc("Kernel",9,"Factory::InsertPackage(\""<<
                         p->GetName()<<"\")"<<std::endl);
 
-    p->AddFactory(this);
-    PackageInfoType pack;
-    pack.mDynamicLibraryHandler = 0;
-    pack.mPackage = p;
-    mPackageMap[p->GetName()] = pack;
+    p->AddFactory(GetThisPointer<Factory>());
+    mPackageMap[p->GetName()] = p;
 
     bbtkDebugDecTab("Kernel",9);
   }
@@ -636,7 +501,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
   
   //=================================================================== 
   /// Removes a package from the factory (and deletes it)
-  void Factory::RemovePackage( Package* p )
+  void Factory::RemovePackage( Package::Pointer p )
   {
     bbtkDebugMessageInc("Kernel",9,"Factory::RemovePackage(\""<<
                         p->GetName()<<"\")"<<std::endl);
@@ -644,7 +509,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     PackageMapType::iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-         if (i->second.mPackage == p) break;
+         if (i->second == p) break;
       };
     
     if (i!=mPackageMap.end())
@@ -664,17 +529,17 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
 
   //===================================================================
   /// Creates an instance of a black box of type <type> with name <name>
-  BlackBox* Factory::NewBlackBox(const std::string& type, 
+  BlackBox::Pointer Factory::NewBlackBox(const std::string& type, 
                                  const std::string& name) const
   {
     bbtkDebugMessageInc("Kernel",7,"Factory::NewBlackBox(\""
                         <<type<<"\",\""<<name<<"\")"<<std::endl);
 
-    BlackBox* b = 0; 
+    BlackBox::Pointer b; 
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-      b = i->second.mPackage->NewBlackBox(type,name);
+      b = i->second->NewBlackBox(type,name);
       if (b) break; 
       }
     if (!b) 
@@ -689,29 +554,27 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
 
   //===================================================================
   /// Creates an instance of a black box of type <type> with name <name>
-  BlackBox* Factory::NewAdaptor(TypeInfo typein,
-                     TypeInfo typeout,
-                     const std::string& name) const
+  BlackBox::Pointer Factory::NewAdaptor(const DataInfo& typein,
+				const DataInfo& typeout,
+				const std::string& name) const
   {
-    bbtkDebugMessageInc("Kernel",8,"Factory::NewAdaptor(<"
-                        <<TypeName(typein)<<">,<"
-                        <<TypeName(typeout)<<">,\""
+    bbtkDebugMessageInc("Kernel",8,"Factory::NewAdaptor("
+                        <<typein<<","
+                        <<typeout<<",\""
                         <<name<<"\")"<<bbtkendl);
 
 
-    BlackBox* b = 0; 
+    BlackBox::Pointer b; 
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-      b = i->second.mPackage->NewAdaptor(typein,typeout,name);
+      b = i->second->NewAdaptor(typein,typeout,name);
       if (b) break; 
       }
     if (!b) 
       {
-      bbtkError("no <"
-          <<TypeName(typein)<<"> to <"
-          <<TypeName(typeout)
-          <<"> adaptor available");
+	bbtkError("no "<<typein<<" to "<<typeout
+		  <<" adaptor available");
       } 
     
     bbtkDebugDecTab("Kernel",7);
@@ -719,26 +582,186 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
   }
   //===================================================================
 
+
+  //===================================================================
+  /// Creates an instance of a black box of type <type> with name <name>
+  BlackBox::Pointer Factory::NewWidgetAdaptor(const DataInfo& typein,
+				      const DataInfo& typeout,
+				      const std::string& name) const
+  {
+    bbtkDebugMessageInc("Kernel",8,"Factory::NewWidgetAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">,\""
+                        <<name<<"\")"<<bbtkendl);
+
+
+    BlackBox::Pointer b; 
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	b = i->second->NewWidgetAdaptor(typein,
+						 typeout,
+						 name);
+      if (b) break; 
+      }
+    if (!b) 
+      {
+	bbtkError("no "<<typein<<" to "<<typeout
+		  <<"> widget adaptor available");
+      } 
+    
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
+
+  //===================================================================
+  /// Creates an instance of a black box of type <type> with name <name>
+  bool Factory::FindAdaptor(const DataInfo& typein,
+				  const DataInfo& typeout,
+				  std::string& adaptor) const
+  {
+    bbtkDebugMessageInc("Kernel",8,"Factory::FindAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">)"<<bbtkendl);
+    
+    bool b = false;
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	b = i->second->FindAdaptor(typein,
+					    typeout,
+					    adaptor);
+	if (b) break; 
+      }
+    /*
+    if (!b) 
+      {
+	bbtkError("no "<<typein<<" to "<<typeout
+		  <<"> widget adaptor available");
+      } 
+    */
+
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
+
+  //===================================================================
+  /// Creates an instance of a black box of type <type> with name <name>
+  bool Factory::FindWidgetAdaptor(const DataInfo& typein,
+				  const DataInfo& typeout,
+				  std::string& adaptor) const
+  {
+    bbtkDebugMessageInc("Kernel",8,"Factory::FindWidgetAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">)"<<bbtkendl);
+    
+    bool b = false;
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	b = i->second->FindWidgetAdaptor(typein,
+						  typeout,
+						  adaptor);
+	if (b) break; 
+      }
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
+
+  //===================================================================
+  /// Creates an instance of a black box of type <type> with name <name>
+  bool Factory::FindWidgetAdaptor2(const DataInfo& typein,
+				  const DataInfo& typeout,
+				  std::string& widget,
+				  std::string& adaptor) const
+  {
+    bbtkDebugMessageInc("Kernel",8,"Factory::FindWidgetAdaptor(<"
+                        <<typein<<">,<"
+                        <<typeout<<">)"<<bbtkendl);
+    
+    bool b = false;
+    adaptor = widget = "";
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	b = i->second->FindWidgetAdaptor(typein,
+						  typeout,
+						  widget);
+	if (b) break; 
+      }
+    if (!b) 
+      {
+	// Look for a widget adaptor with good nature out
+	bbtkMessage("Kernel",5,
+		    "*** Looking for a two pieces widget adaptor for : "
+		    << typein << "->"<<typeout<<std::endl);
+	for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+	  {
+	    Package::AdaptorMapType::const_iterator j;
+	    for (j=i->second->GetAdaptorMap().begin();
+		 j!=i->second->GetAdaptorMap().end();
+		 ++j)
+	      {
+		if ( ( j->first.mKind ==  
+		       BlackBoxDescriptor::DEFAULT_GUI) &&
+		     //(j->first.mTypeIn == typein) &&
+		     (j->first.mTypeOut.GetNature() == typeout.GetNature() ) 
+		     )
+		  {
+		    widget = j->second.lock()->GetTypeName();
+		    bbtkMessage("Kernel",5,
+				"===> Found first part : "<<widget
+				<< " "<<j->first.mTypeIn<<"->"
+				<<j->first.mTypeOut<<std::endl);
+		    DataInfo ti( j->first.mTypeOut.GetType(), "");
+		    DataInfo to( typeout.GetType(), "");
+		    b = FindAdaptor( ti, to, adaptor );
+		    if (b) 
+		      {
+			bbtkMessage("Kernel",5,
+				    "===> Found second part : "<<adaptor
+				    <<std::endl);
+			break;
+		      }
+		    else
+		      {
+			bbtkMessage("Kernel",5,
+				    "===> No second part found"<<std::endl);
+		      }
+		  }
+	      }
+	    if (b) break;
+	  }
+      }
+    bbtkDebugDecTab("Kernel",7);
+    return b; 
+  }
+  //===================================================================
+
   //===================================================================
   /// Creates an instance of a connection
-  Connection* Factory::NewConnection(BlackBox* from,
-                                     const std::string& output,
-                                     BlackBox* to,
-                                     const std::string& input) const
+  Connection::Pointer Factory::NewConnection(BlackBox::Pointer from,
+					     const std::string& output,
+					     BlackBox::Pointer to,
+					     const std::string& input) const
   {
     bbtkDebugMessage("Kernel",7,"Factory::NewConnection(\""
                       <<from->bbGetName()<<"\",\""<<output<<"\",\""
                       <<to->bbGetName()<<"\",\""<<input
                       <<"\")"<<std::endl);
     
-    return new Connection(from,output,to,input,this);
+    return Connection::New(from,output,to,input,
+			   GetThisPointer<Factory>());
   }
   //===================================================================
 
 
 
   //===================================================================
-  const Package* Factory::GetPackage(const std::string& name) const
+  Package::Pointer Factory::GetPackage(const std::string& name) const
   {
     bbtkDebugMessageInc("Kernel",9,"Factory::GetPackage(\""<<name<<"\")"
                          <<std::endl);
@@ -747,7 +770,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     if ( i != mPackageMap.end() ) 
     {
       bbtkDebugDecTab("Kernel",9); 
-      return i->second.mPackage;
+      return i->second;
     }
     else 
     {
@@ -759,25 +782,19 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
   }
   //===================================================================
   
+
   //===================================================================
-  Package* Factory::GetPackage(const std::string& name) 
+  void Factory::CheckPackages() const
   {
-    bbtkDebugMessageInc("Kernel",9,"Factory::GetPackage(\""<<name<<"\")"
-                         <<std::endl);
-
-    PackageMapType::const_iterator i = mPackageMap.find(name);
-    if ( i != mPackageMap.end() ) 
-    {
-      bbtkDebugDecTab("Kernel",9); 
-      return i->second.mPackage;
-    }
-    else 
-    {
-       bbtkDebugDecTab("Kernel",9);
-       bbtkError("package \""<<name<<"\" unknown");
-    }
-    
-    bbtkDebugDecTab("Kernel",9);  
+    bbtkMessage("debug",1,"****** Checking Factory "<<(void*)this
+		 <<std::endl);
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+      {
+	i->second->CheckBoxes();
+      }
+    bbtkMessage("debug",1,"****** Checking Factory "<<(void*)this
+		<<" ... OK"<<std::endl);
   }
   //===================================================================
 
@@ -815,7 +832,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
    PackageMapType::const_iterator i;
    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
    {
-      if (i->second.mPackage->ContainsBlackBox(name)) 
+      if (i->second->ContainsBlackBox(name)) 
       {
          std::string separator = ConfigurationFile::GetInstance().Get_file_separator ();
 
@@ -834,11 +851,11 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
         ff=fopen(filename2.c_str(),"w");
 
         fprintf(ff,"<html><head><title>TMP</title> <script type=\"text/javascript\"> <!--\n");
-        fprintf(ff,"  window.location=\"%s#%s\";\n" , i->second.mPackage->GetDocURL().c_str(),name.c_str() );
+        fprintf(ff,"  window.location=\"%s#%s\";\n" , i->second->GetDocURL().c_str(),name.c_str() );
         fprintf(ff,"//--></script></head><body></body></html>\n");
 
 
-        //fprintf(ff, "<a  href=\"%s#%s\">Link</a>\n", i->second.mPackage->GetDocURL().c_str(),name.c_str() );
+        //fprintf(ff, "<a  href=\"%s#%s\">Link</a>\n", i->second->GetDocURL().c_str(),name.c_str() );
         fclose(ff);
         system( command.c_str() );      
         found = true;
@@ -864,13 +881,14 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     
     std::string title;
 
-    typedef std::map<std::string, std::vector<BlackBoxDescriptor*> > IndexType;
+    typedef std::map<std::string, 
+      std::vector<BlackBoxDescriptor::Pointer> > IndexType;
     IndexType index;
     // Builds the index map
     PackageMapType::const_iterator i;
     for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
       {
-	Package* pack = i->second.mPackage;
+	Package::Pointer pack = i->second;
 	if (pack->GetName()=="user") continue;
 	Package::BlackBoxMapType::const_iterator j;
 	for (j = pack->GetBlackBoxMap().begin(); 
@@ -926,7 +944,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
 		  }
 		else 
 		  {
-		    std::vector<BlackBoxDescriptor*> v;
+		    std::vector<BlackBoxDescriptor::Pointer> v;
 		    v.push_back(j->second);
 		    index[*k] = v;
 		  }
@@ -994,7 +1012,9 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
 	    s << "&nbsp;&nbsp;-&nbsp;&nbsp;\n"; 
 
 	    s << "<a name=\"doxygen\"></a>\n"; 
-	    s << "<a href=..\\doxygen\\" << ii->first << "/main.html>(Doxygen documentation of the source)</a>\n"; 
+//EED 26Mars2009		  
+		std::string bin_path = bbtk::ConfigurationFile::GetInstance().Get_bin_path();
+	    s << "<a href=" << bin_path <<"/../share/bbtk/doc/doxygen/" << ii->first << "/main.html>(Doxygen documentation of the source)</a>\n"; 
 	  }
 	else 
 	  {
@@ -1005,7 +1025,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
 
 	s << "<p><TABLE cellspacing=0  cellpadding=3>\n";
 
-	std::vector<BlackBoxDescriptor*>::iterator di;
+	std::vector<BlackBoxDescriptor::Pointer>::iterator di;
 	for (di=ii->second.begin();di!=ii->second.end();++di)
 	  {
 	    std::string pack = (*di)->GetPackage()->GetName();
@@ -1034,7 +1054,7 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     ptm = gmtime ( &rawtime );
 
     s << "<p><hr>\n";
-    s << "Automatically generated by <b>bbi</b> on "
+    s << "Automatically generated by <b>bbtk</b> on "
       << ptm->tm_mday << "/" << ptm->tm_mon << "/" << ptm->tm_year+1900 
       << " - " << ptm->tm_hour << ":" << ptm->tm_min << " GMT\n";
     s << "</body></html>\n"; 
@@ -1045,6 +1065,50 @@ printf("EED kkkkkkkkkkkkkkkkkkkkkkkk  Factory::Reset() \n");
     bbtkDebugDecTab("Kernel",9);
   }
 
+ //==========================================================================
+  std::string Factory::GetObjectName() const
+  {
+    return std::string("Factory");
+  }
+  //==========================================================================
+  
+  //==========================================================================
+  std::string  Factory::GetObjectInfo() const 
+  {
+    std::stringstream i;
+    return i.str();
+  }
+  //==========================================================================
+
+  //==========================================================================
+size_t  Factory::GetObjectSize() const 
+{
+  size_t s = Superclass::GetObjectSize();
+  s += Factory::GetObjectInternalSize();
+  return s;
+  }
+  //==========================================================================
+  //==========================================================================
+size_t  Factory::GetObjectInternalSize() const 
+{
+  size_t s = sizeof(Factory);
+  return s;
+  }
+  //==========================================================================
+  //==========================================================================
+  size_t  Factory::GetObjectRecursiveSize() const 
+  {
+    size_t s = Superclass::GetObjectRecursiveSize();
+    s += Factory::GetObjectInternalSize();
+
+    PackageMapType::const_iterator i;
+    for (i = mPackageMap.begin(); i!=mPackageMap.end(); ++i )
+    {
+      s += i->second->GetObjectRecursiveSize();
+    }
+    return s;
+  }
+  //==========================================================================
 
 }