csv import sample controller

ImportSample1Ctrl.cls

public with sharing class ImportSample1Ctrl {

  public DataImportHistory__c dih { get; set; }

  public ImportSample1Ctrl() {
    System.debug('IN ImportSample1Ctrl');
  
  }
  
  public void init() {
    dih = new DataImportHistory__c();
    System.debug('IN init');
  }
  

  public PageReference createData2() {
  
    System.debug('IN createData2');
  
    String txtImport =  dih.ImportData__c;
    
    CSVParser parser = new CSVParser();
    parser.textQualifier = '"';
    parser.delimiter = '\t';
    parser.escapeMode = CSVParser.ESCAPE_MODE_DOUBLED;
//    String contents = 'Mode,Price,Count\nFerrari 458 Italia,"$225,325,5"\nFerrari 599 GTB Fiorano,"$336,541,2"';
    String contents = dih.ImportData__c;
    List<List<String>> result = parser.parse(contents);
  
    System.debug('result=' + result);
    
    Integer i = 0;
    Integer j = 0;
    
    List<ImportData__c> dataList = new List<ImportData__c>();
    
    for(List<String> resultItems : result) {
      
      j = 0;
      ImportData__c data = new ImportData__c();
      
      for(String resultItem : resultItems) {
        System.debug('i=' + i + '; j=' + j + '; result=' + resultItem);
        
        if( j == 0) {
          data.Data1__c = resultItem;
        } else if( j == 1 ) {
          data.Data2__c = resultItem;
        } else if( j == 2 ) {
          data.Data3__c = resultItem;
        }
        
        j++;
        
      }
      
      dataList.add(data);

      i++;
    }
    
    insert dataList;
    
    dih.ImportData__c = '';
    
    return null;
  
  }

}