@Override
public ArrayList<ArrayList<String>> convertToRowWise(DataSet dataSet) {
ArrayList<ArrayList<String>> columnDataArrayList = new ArrayList<ArrayList<String>>();
ArrayList<ArrayList<String>> rowArrayList = new ArrayList<ArrayList<String>>();
for (int index = 0; index < dataSet.getColumns().size(); index++) {
columnDataArrayList.add(
dataSet.getData().get(dataSet.getColumns().get(index).getId()).getValues());
}
for (int i = 0; i < columnDataArrayList.size(); i++) {
ArrayList<String> colwisewRow = columnDataArrayList.get(i);
for (int j = 0; j < colwisewRow.size(); j++) {
if (i == 0) {
ArrayList<String> temp = new ArrayList<String>();
rowArrayList.add(temp);
}
rowArrayList.get(j).add(colwisewRow.get(j));
}
}
return rowArrayList;
}
private List<ArrayList<String>> getCSVFormat(String datasetId) {
List<ArrayList<String>> csvLines = new ArrayList<ArrayList<String>>();
DataSet dataSet = DataSets.dataSets.get(datasetId);
ArrayList<DataSetColumn> columns = dataSet.getColumns();
DataSetServiceImpl dataSetServiceImpl = new DataSetServiceImpl();
ArrayList<String> datasetCols = new ArrayList<String>();
for (int i = 0; i < columns.size(); i++) {
datasetCols.add(columns.get(i).getName());
}
csvLines.add(datasetCols);
csvLines.addAll(dataSetServiceImpl.convertToRowWise(dataSet));
return csvLines;
}