| # Gaudi Framework, version v21r6 |

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# SmartRefBase.cpp

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    00001 // $Header: /tmp/svngaudi/tmp.jEpFh25751/Gaudi/GaudiKernel/src/Lib/SmartRefBase.cpp,v 1.8 2005/05/10 12:24:16 hmd Exp $
    00002 //      ====================================================================
    00003 //      SmartRefBase.cpp
    00004 //      --------------------------------------------------------------------
    00005 //
    00006 //      Package   : Root conversion example
    00007 //
    00008 //      Author    : Markus Frank
    00009 //
    00010 //      ====================================================================
    00011 #define KERNEL_SMARTREFBASE_CPP 1
    00012 // $Header: /tmp/svngaudi/tmp.jEpFh25751/Gaudi/GaudiKernel/src/Lib/SmartRefBase.cpp,v 1.8 2005/05/10 12:24:16 hmd Exp $
    00013
    00014 // Framework include files
    00015 #include "GaudiKernel/IDataProviderSvc.h"
    00016 #include "GaudiKernel/GaudiException.h"
    00017 #include "GaudiKernel/IRegistry.h"
    00018 #include "GaudiKernel/DataObject.h"
    00019 #include "GaudiKernel/LinkManager.h"
    00020 #include "GaudiKernel/StreamBuffer.h"
    00021 #include "GaudiKernel/SmartRefBase.h"
    00022 #include "GaudiKernel/ContainedObject.h"
    00023 #include "GaudiKernel/ObjectContainerBase.h"
    00024
    00025 typedef ObjectContainerBase _Container;
    00026
    00028 void  SmartRefBase::set(DataObject* pObj, long hint_id, long link_id) {
    00029   m_data = pObj;
    00030   m_hintID = hint_id;
    00031   m_linkID = link_id;
    00032 }
    00033
    00035 const ContainedObject* SmartRefBase::accessData(const ContainedObject*)   const   {
    00036   if ( m_hintID != StreamBuffer::INVALID && m_linkID != StreamBuffer::INVALID )   {
    00037     const _Container* cnt = dynamic_cast<const _Container*>(accessData(m_data));
    00038     if ( 0 != cnt )  {
    00039       return cnt->containedObject(m_linkID);
    00040     }
    00041   }
    00042   return 0;
    00043 }
    00044
    00046 const DataObject* SmartRefBase::accessData(const DataObject*)   const   {
    00047   DataObject* target = 0;
    00048   DataObject* source  =0;
    00049   if ( 0 == m_data && 0 != m_contd )  {
    00050     m_data = m_contd->parent();
    00051   }
    00052   source  = const_cast<DataObject*>(m_data);
    00053   if ( m_hintID != StreamBuffer::INVALID && source != 0 )   {
    00054     LinkManager* mgr = source->linkMgr();
    00055     if ( 0 != mgr )   {
    00056       LinkManager::Link* link = mgr->link(m_hintID);
    00057       if ( 0 != link )  {
    00058         target = link->object();
    00059         if ( 0 == target )    {
    00060           IRegistry* reg = source->registry();
    00061           if ( 0 != reg )   {
    00062             IDataProviderSvc* datasvc = reg->dataSvc();
    00063             if ( 0 != datasvc )   {
    00064               if ( datasvc->retrieveObject(link->path(), target).isSuccess() )   {
    00065                 link->setObject(target);
    00066               }
    00067             }
    00068           }
    00069         }
    00070       }
    00071     }
    00072   }
    00073   return target;
    00074 }
    00075
    00076 // Extended equality check
    00077 bool SmartRefBase::isEqualEx(const DataObject* pObj, const SmartRefBase& c)  const    {
    00078   if ( c.m_hintID != StreamBuffer::INVALID && 0 != pObj )   {
    00079     DataObject* source  = const_cast<DataObject*>(c.m_data);
    00080     if ( 0 != source )   {
    00081       LinkManager* mgr = source->linkMgr();
    00082       if ( 0 != mgr )   {
    00083         LinkManager::Link* link = mgr->link(c.m_hintID);
    00084         if ( 0 != link )  {
    00085           IRegistry* pReg = pObj->registry();
    00086           if ( pReg != 0 )   {
    00087             return link->path() == pReg->identifier();
    00088           }
    00089         }
    00090       }
    00091     }
    00092   }
    00093   return false;
    00094 }
    00095
    00096 // Extended equality check
    00097 bool SmartRefBase::isEqualEx(const ContainedObject* pObj, const SmartRefBase& c)  const   {
    00098   if ( isEqualEx(pObj->parent(), c) )   {
    00099     return pObj->index() == c.m_linkID;
    00100   }
    00101   return false;
    00102 }
    00103
    00104 const std::string &SmartRefBase::path () const {
    00105   static std::string s_empty_string = std::string();
    00106   DataObject *source = 0;
    00107   if ( 0 == m_data && 0 != m_contd )  {
    00108     m_data = m_contd->parent();
    00109   }
    00110   source = const_cast<DataObject*>(m_data);
    00111   if ( m_hintID != StreamBuffer::INVALID && source != 0 ) {
    00112     LinkManager* mgr = source->linkMgr();
    00113     if ( 0 != mgr ) {
    00114       LinkManager::Link* link = mgr->link(m_hintID);
    00115       if ( 0 != link )
    00116         return link->path();
    00117     }
    00118   }
    00119   return s_empty_string;
    00120 }