xbmc/DatabaseManager.cpp

   1 /*
   2  *      Copyright (C) 2012-2013 Team XBMC
   3  *      http://xbmc.org
   4  *
   5  *  This Program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2, or (at your option)
   8  *  any later version.
   9  *
  10  *  This Program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with XBMC; see the file COPYING.  If not, see
  17  *  <http://www.gnu.org/licenses/>.
  18  *
  19  */
  20
  21 #include "DatabaseManager.h"
  22 #include "utils/log.h"
  23 #include "addons/AddonDatabase.h"
  24 #include "view/ViewDatabase.h"
  25 #include "TextureDatabase.h"
  26 #include "music/MusicDatabase.h"
  27 #include "video/VideoDatabase.h"
  28 #include "pvr/PVRDatabase.h"
  29 #include "epg/EpgDatabase.h"
  30 #include "settings/AdvancedSettings.h"
  31
  32 using namespace std;
  33 using namespace EPG;
  34 using namespace PVR;
  35
  36 CDatabaseManager &CDatabaseManager::Get()
  37 {
  38   static CDatabaseManager s_manager;
  39   return s_manager;
  40 }
  41
  42 CDatabaseManager::CDatabaseManager()
  43 {
  44 }
  45
  46 CDatabaseManager::~CDatabaseManager()
  47 {
  48 }
  49
  50 void CDatabaseManager::Initialize(bool addonsOnly)
  51 {
  52   Deinitialize();
  53   { CAddonDatabase db; UpdateDatabase(db); }
  54   if (addonsOnly)
  55     return;
  56   CLog::Log(LOGDEBUG, "%s, updating databases...", __FUNCTION__);
  57
  58   // NOTE: Order here is important. In particular, CTextureDatabase has to be updated
  59   //       before CVideoDatabase.
  60   { CViewDatabase db; UpdateDatabase(db); }
  61   { CTextureDatabase db; UpdateDatabase(db); }
  62   { CMusicDatabase db; UpdateDatabase(db, &g_advancedSettings.m_databaseMusic); }
  63   { CVideoDatabase db; UpdateDatabase(db, &g_advancedSettings.m_databaseVideo); }
  64   { CPVRDatabase db; UpdateDatabase(db, &g_advancedSettings.m_databaseTV); }
  65   { CEpgDatabase db; UpdateDatabase(db, &g_advancedSettings.m_databaseEpg); }
  66   CLog::Log(LOGDEBUG, "%s, updating databases... DONE", __FUNCTION__);
  67 }
  68
  69 void CDatabaseManager::Deinitialize()
  70 {
  71   CSingleLock lock(m_section);
  72   m_dbStatus.clear();
  73 }
  74
  75 bool CDatabaseManager::CanOpen(const std::string &name)
  76 {
  77   CSingleLock lock(m_section);
  78   map<string, DB_STATUS>::const_iterator i = m_dbStatus.find(name);
  79   if (i != m_dbStatus.end())
  80     return i->second == DB_READY;
  81   return false; // db isn't even attempted to update yet
  82 }
  83
  84 void CDatabaseManager::UpdateDatabase(CDatabase &db, DatabaseSettings *settings)
  85 {
  86   std::string name = db.GetBaseDBName();
  87   UpdateStatus(name, DB_UPDATING);
  88   if (db.Update(settings ? *settings : DatabaseSettings()))
  89     UpdateStatus(name, DB_READY);
  90   else
  91     UpdateStatus(name, DB_FAILED);
  92 }
  93
  94 void CDatabaseManager::UpdateStatus(const std::string &name, DB_STATUS status)
  95 {
  96   CSingleLock lock(m_section);
  97   m_dbStatus[name] = status;
  98 }