RcppRemove_hdf5_elements

C++ Function Reference

1 Signature

void BigDataStatMeth::RcppRemove_hdf5_elements(BigDataStatMeth::hdf5File *file, std::vector< std::string > elements)

2 Description

Removes specified elements from an HDF5 file.

3 Parameters

  • file (BigDataStatMeth::hdf5File *): Pointer to the HDF5 file object
  • elements (std::vector< std::string >): Vector of element paths to be removed

4 Details

This function safely removes multiple elements from an HDF5 file. It checks for the existence of each element before attempting removal and provides appropriate feedback messages.

5 Call Graph

Function dependencies

6 Source Code

File: inst/include/hdf5Utilities/hdf5RemoveElements.hpp • Lines 59-108

inline void RcppRemove_hdf5_elements(BigDataStatMeth::hdf5File* file, std::vector<std::string> elements)
    {
        
        try
        {
            H5::Exception::dontPrint();
            
            
            if(elements.size() == 0) {
                std::string strmessage = "Nothing to be removed removed";
                Rcpp::message(Rcpp::wrap(strmessage));
            } else { // Remove datasets
                // for (int i=0; i<elements.size(); i++) 
                for (size_t i = 0; i < elements.size(); ++i)
                {
                    H5std_string element = "" + elements[i];
                    if(exists_HDF5_element( file->getFileptr(), element))
                    {
                        int result = H5Ldelete( (file->getFileptr())->getId(), element.data(), H5P_DEFAULT);  
                        if(result<0) {
                            Rcpp::Rcout<<"\n Error removing : "<<elements[i]<<"\n";
                        } 
                    } else {
                        Rcpp::Rcout<<"\n Element: "<<elements[i]<<" does not exists \n";
                    }
                }    
            }
            
        } catch(H5::FileIException& error) { // catch failure caused by the H5File operations
            Rcpp::Rcerr<<"c++ exception RcppRemove_hdf5_elements (File IException)";
            return void();
        } catch(H5::GroupIException& error) { // catch failure caused by the Group operations
            Rcpp::Rcerr<<"c++ exception RcppRemove_hdf5_elements (Group IException)";
            return void();
        } catch(H5::DataSetIException& error) { // catch failure caused by the DataSet operations
            Rcpp::Rcerr<<"c++ exception RcppRemove_hdf5_elements (DataSet IException)";
            return void();
        } catch(H5::DataSpaceIException& error) { // catch failure caused by the DataSpace operations
            Rcpp::Rcerr<<"c++ exception RcppRemove_hdf5_elements (DataSpace IException)";
            return void();
        } catch(std::exception &ex) {
            Rcpp::Rcerr << "c++ exception RcppRemove_hdf5_elements: " << ex.what();
            return void();
        } catch (...) {
            Rcpp::Rcerr<<"C++ exception RcppRemove_hdf5_elements (unknown reason)";
            return void();
        }
        
        return void();
    }

7 Usage Example

#include "BigDataStatMeth.hpp"

// Example usage
auto result = RcppRemove_hdf5_elements(...);