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CdbRooRoContextSaver.cc

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// File and Version Information:
//      $Id: CdbRooRoContextSaver.cc,v 1.2 2005/11/04 19:49:08 gapon Exp $

/// Implementation file for the CdbRooRoContextSaver class
/**
  * @see CdbRooRoContextSaver
  */

#include "BaBar/BaBar.hh"

#include "CdbRooReadonly/CdbRooRoContextSaver.hh"

#include "CdbBase/CdbDebugStream.hh"

#include <TDirectory.h>

std::string
CdbRooRoContextSaver::depth( const bool enterVsLeave )
{
    static std::string current = "";
    if( enterVsLeave ) {
        const std::string result = current;
        current += "  ";
        return result;
    }
    if( current.size( ) >= 2 )
        current.resize( current.size( ) - 2 );   // get rid of two characters from the end
    return current;
}

CdbRooRoContextSaver::CdbRooRoContextSaver( ) :
    _path( gDirectory->GetPath( ))
{
    CDB_DEBUG_STREAM << " ** CdbRooRoContextSaver ** " << depth( true ) << "SAVED    : '" << _path << "'\n";
}

CdbRooRoContextSaver::~CdbRooRoContextSaver( )
{
    const std::string indent = depth( false );

    CDB_DEBUG_STREAM << " ** CdbRooRoContextSaver ** " << indent << "LEFT     : '" << gDirectory->GetPath( ) << "'\n";
    gDirectory->Cd( _path.c_str( ));
    CDB_DEBUG_STREAM << " ** CdbRooRoContextSaver ** " << indent << "RESTORED : '" << _path << "'\n";
}

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// End Of File //
/////////////////

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