QGlobalDataManager.cc

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#include "QGlobalDataManager.hh"
#include "QStringHandler.hh"
#include "QDianaVersion.hh"
#include <sstream>
 
 
Q_BEGIN_NAMESPACE
 
int QGlobalDataManager::fInstances = 0;
 
QGlobalDataManager* QGlobalDataManager::fUniqueInstance = 0;
 
QGlobalDataManager& QGlobalDataManager::GetInstance(const std::string& owner)
{
    if(!fUniqueInstance) {
        if(owner.empty()) DianaThrow("QGlobalDataManager::GetInstance() needs owner specification at first call")
        fUniqueInstance = new QGlobalDataManager();
        if(!fUniqueInstance) DianaThrow("QGlobalDataManager::GetInstance(): cannot allocate object");
    }
    fUniqueInstance->SetOwner(owner);
    return *fUniqueInstance;
}
 
 
QGlobalDataManager::QGlobalDataManager() 
{
    fOwner.clear();
    fCacheEnabled = true;
    fInstances++;
/*    if(fInstances == 1) 
    QMessageHandler::Warn("QGlobalDataManager::QGlobalDataManager()","Multiple instances of QGlobalDataManager can generate errors, use only one instance.");
    */
 
//    See discussion in issue #274
//    fOutputVersion = QSWInfo::GetDianaVersionTag();
    fOutputVersion = QSWInfo::GetDianaCleanVersionTag();
    fInputVersion = fOutputVersion;
}
 
QGlobalDataManager::~QGlobalDataManager() 
{
 
   Clear();
   fInstances--;
}
 
void QGlobalDataManager::Clear()
{
    std::map<QGlobalLabel, CachedObject>::iterator iter = fDataMap.begin();
    while(iter != fDataMap.end()) {
        delete iter->second.object;
        iter++;
    }
    fDataMap.clear();
    fDefaultMap.clear();
}
 
void QGlobalDataManager::Dump(std::ostream& o) const
{
    o<<"Dump of cached global QObjects. Caller: \"";
    if(!fOwner.empty()) o<<fOwner;
    o<<"\""<<std::endl;
    std::map<QGlobalLabel,CachedObject>::const_iterator iter = fDataMap.begin();
    int len = 15;
    o<<" "<<QStringHandler::Resize("Owner",20)
        <<" "<<QStringHandler::Resize("Name",len)
        <<" "<<QStringHandler::Resize("BeginRun",10)
        <<" "<<QStringHandler::Resize("EndRun",10)
        <<" "<<QStringHandler::Resize("Channel",10)
        <<" "<<QStringHandler::Resize("IsValid",8)
        <<" "<<QStringHandler::Resize("Dump",len)
        <<std::endl;
    for(int i = 0; i < 88; i++) o<<"-";
    o<<std::endl;
    while(iter != fDataMap.end()) {
        const QGlobalLabel& label = iter->first;
        const QObject* evData = 0;
        if((iter->second.object)) evData = (iter->second.object);
 
        o<<" "<<QStringHandler::Resize(label.fOwner,20)
         <<" "<<QStringHandler::Resize(label.fName,len);
         char buf[128];
         snprintf(buf,128,"%06d",label.fBeginRun);
         o<<" "<<QStringHandler::Resize(buf,10);
         snprintf(buf,128,"%06d",label.fEndRun);
         o<<" "<<QStringHandler::Resize(buf,10);
         snprintf(buf,128,"%04d",label.fChannel);
         o<<" "<<QStringHandler::Resize(buf,10);
        bool isValid = false;
        if(evData) isValid = evData->IsValid();
        o<<" "<<QStringHandler::Resize((isValid ? "true" : "false"),8);
        if(isValid) {
            o<<" ";
            std::stringstream msgStream;
            evData->Dump(msgStream);
            std::string line;
            std::getline(msgStream,line);
            o<<line<<std::endl;
            while(std::getline(msgStream,line)) {
                o << QStringHandler::Resize(" ",80) << line << std::endl;
            }
 
        } else {
            o << std::endl;
        }
        iter++;
    }
    o<<"End of dump of global QObjects "<<std::endl;
 
 
}
 
 
std::vector<QGlobalLabel> QGlobalDataManager::GetWriteLabels() const
{
    std::vector<QGlobalLabel> labels;
    std::map<QGlobalLabel, CachedObject>::const_iterator iter =  fDataMap.begin();
    while(iter != fDataMap.end()) {
        labels.push_back(iter->first);
        iter++;
    }
    return labels;
}
 
const QObject* QGlobalDataManager::GetByLabel(const QGlobalLabel& label) const
{
    
    QObject* obj = 0;
    std::map<QGlobalLabel, CachedObject>::const_iterator iter = fDataMap.find(label);
    if(iter != fDataMap.end() ) {
        obj = iter->second.object;
        return obj;
    }
//    QError err = QERR_GLOBAL_GENERIC;
//    err.SetDescription("Object " + label.GetStringLabel() + " not found");
//    QMessageHandler::Debug("QGlobalDataManager::GetByLabel()",err.GetDescription());
 
    return 0;
}
 
 
 
Q_END_NAMESPACE