bool EventBuilderWrapper::InitRunNumber ( const string &  path = "" )

inlineprotected

Definition at line 119 of file EventBuilderWrapper.h.

References DimWriteStatistics::DoesPathExist(), MessageImp::Error(), DataProcessorImp::FormFileName(), Time::GetAsStr(), Time::GetPrevSunRise(), MessageImp::Info(), MessageImp::Message(), Time::NightAsInt(), DimWriteStatistics::SetCurrentFolder(), str, and MessageImp::Warn().

    {
        if (!path.empty())
        {
            if (!DimWriteStatistics::DoesPathExist(path, fMsg))
            {
                fMsg.Error("Data path "+path+" does not exist!");
                return false;
            }

            fPath = path;
            fDimWriteStats.SetCurrentFolder(fPath);

            fMsg.Info("Data path set to "+path+".");
        }

        // Get current night
        const Time now;

        const uint32_t night = now.NightAsInt();
        if (night==fNightAsInt)
            return true;

        const string crosscheck = now.GetPrevSunRise().GetAsStr("%Y%m%d");
        if (crosscheck!=to_string(night))
        {
            fMsg.Warn("The crosscheck for the night failed. "+crosscheck+" is not equal to "+to_string(night)+"... keeping old one.");
            fMsg.Warn("This is a severe error. Please restart fadctrl.");
            return true;
        }

        // In some circumstances, I do not understand yet (but I guess it can happen
        // when the shared objects are re-compiled while the program is not
        // re-started), it can happen that the returned value is wrong by one day.
        // So this is just another check to avoid problems.
        const uint32_t night_test = Time(now-boost::posix_time::seconds(1)).NightAsInt();
        if (night_test != night)
            return true;

        // And another check. Let's read the clock again.
        // In both cases a false condition is no error and can happen. But if it happens,
        // the bahaviour will change a fraction of a second later and the conditon
        // will be true. No run should be taken just around that moment and if one
        // is taken, then the date doesn't matter.
        if (Time().NightAsInt() != night)
            return true;

        if (night<fNightAsInt)
        {
            fMsg.Warn("New night "+to_string(night)+" ["+now.GetAsStr()+"] before current night "+to_string(night)+"... keeping old one.");
            fMsg.Warn("Please check the system clock.");
            return true;
        }

        // Check for run numbers
        fRunNumber = 1000;

        while (--fRunNumber>0)
        {
            const string name = DataProcessorImp::FormFileName(fPath, night, fRunNumber, "");

            if (access((name+"bin").c_str(), F_OK) == 0)
                break;
            if (access((name+"fits").c_str(), F_OK) == 0)
                break;
            if (access((name+"fits.fz").c_str(), F_OK) == 0)
                break;
            if (access((name+"fits.gz").c_str(), F_OK) == 0)
                break;
            if (access((name+"drs.fits").c_str(), F_OK) == 0)
                break;
        }

        // This is now the first file which does not exist
        fRunNumber++;
        fLastOpened = 0;

        // Check if we have exceeded the maximum
        if (fRunNumber==1000)
        {
            fMsg.Error("You have a file with run-number 1000 in "+fPath+" ["+to_string(night)+"]");
            return false;
        }

        ostringstream str;
        if (fNightAsInt==0)
            str << "First night...";
        else
            str << "Night has changed from " << fNightAsInt << " [" << now << "]... ";
        str << " next run-number is " << night << "-" << setfill('0') << setw(3) << fRunNumber << " [" << (fPath.empty()?".":fPath) << "]";
        fMsg.Message(str);

        fNightAsInt = night;

        return true;
    }

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