get_file_list.C

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// macro for obtaining file list satisfying given criteria
#ifndef __CLING__
#include "../FileCatalogue.cxx"
#include "../FileCatalogue.h"
using namespace std;
#endif
 
void get_file_list()
{
    // create one or more FileCondition objects with necessary criteria
    unique_ptr<FileCondition> period_condition =
        make_unique<FileCondition>(FileCondition::kPeriodNumber, FileCondition::kEqual, 9);
    unique_ptr<FileCondition> energy_condition =
        make_unique<FileCondition>(FileCondition::kEnergy, FileCondition::kEqual, 3.0f);
 
    // add FileCondition objects to vector
    vector<unique_ptr<FileCondition>> condition_vec;
    condition_vec.push_back(std::move(period_condition));
    condition_vec.push_back(std::move(energy_condition));
 
    // create File Catalogue interface
    FileCatalogue* FC = new FileCatalogue();
 
    vector<string> file_lfns;
 
    // call GetFileList() function and pass the vector
    int res = FC->GetFileList(std::move(condition_vec), file_lfns);
 
    // print result vector with LFN (Logical File Name) strings
    if (res)
        cout << "Error: " << GetErrorString(-res) << endl;
    else {
        cout << " File List for the condtions: " << (file_lfns.empty() ? "empty" : "") << endl;
        for (auto file_lfn : file_lfns)
            cout << "   " << file_lfn << endl;
    }
    delete FC;
}