src/pkg/YQPkgSelMapper.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQPkgSelMapper.cc
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17 /-*/
  18
  19
  20 #define y2log_component "qt-pkg"
  21 #include <ycp/y2log.h>
  22
  23 #include "YQPkgSelMapper.h"
  24
  25
  26
  27 int                     YQPkgSelMapper::_refCount = 0;
  28 YQPkgSelMapper::Cache   YQPkgSelMapper::_cache;
  29
  30
  31 YQPkgSelMapper::YQPkgSelMapper()
  32 {
  33     if ( ++_refCount == 1 )
  34         rebuildCache();
  35 }
  36
  37
  38 YQPkgSelMapper::~YQPkgSelMapper()
  39 {
  40     if ( --_refCount == 0 )
  41     {
  42         y2debug( "Destroying pkg -> selectable cache" );
  43         _cache.clear();
  44     }
  45 }
  46
  47
  48 void YQPkgSelMapper::rebuildCache()
  49 {
  50     _cache.clear();
  51     y2debug( "Building pkg -> selectable cache" );
  52
  53     for ( ZyppPoolIterator sel_it = zyppPkgBegin();
  54           sel_it != zyppPkgEnd();
  55           ++sel_it )
  56     {
  57         ZyppSel sel = *sel_it;
  58
  59         if ( sel->installedObj() )
  60         {
  61             // The installed package (if there is any) may or may not be in the list
  62             // of available packages. Better make sure to insert it.
  63
  64             ZyppPkg installedPkg = tryCastToZyppPkg( sel->installedObj() );
  65
  66             if ( installedPkg )
  67                 _cache.insert( CachePair( installedPkg, sel ) );
  68         }
  69
  70         zypp::ui::Selectable::available_iterator it = sel->availableBegin();
  71
  72         while ( it != sel->availableEnd() )
  73         {
  74             ZyppPkg pkg = tryCastToZyppPkg( *it );
  75
  76             if ( pkg )
  77                 _cache.insert( CachePair( pkg, sel ) );
  78
  79             ++it;
  80         }
  81     }
  82
  83     y2debug( "Building pkg -> selectable cache done" );
  84 }
  85
  86
  87 ZyppSel
  88 YQPkgSelMapper::findZyppSel( ZyppPkg pkg )
  89 {
  90     YQPkgSelMapper mapper; // This will build a cache, if there is none yet
  91     ZyppSel sel;
  92
  93     YQPkgSelMapper::CacheIterator it = YQPkgSelMapper::_cache.find( pkg );
  94
  95     if ( it != YQPkgSelMapper::_cache.end() )
  96         sel = it->second;
  97     else
  98         y2warning( "No selectable found for package %s", pkg->name().c_str() );
  99
 100     return sel;
 101 }
 102