/// <summary>
/// Override to provide custom logic of body processing
/// </summary>
/// <returns></returns>
protected virtual async Task ProcessBodyAsync(ICsvRowConvertionStrategy <TModel> csvConverter)
{
Result = new List <TModel>();
await foreach (var bodyRow in _dataProvider.GetBodyAsync().ConfigureAwait(false))
{
var model = csvConverter.Convert(bodyRow.Columns);
Result.Add(model);
}
}
protected override async Task ProcessBodyAsync(ICsvRowConvertionStrategy <TModel> csvConverter)
{
var iterator = _dataProvider.GetIterator();
if (iterator == null)
{
throw new CsvParserException("csv iterator is not set");
}
var rowSplitter = _dataProvider.GetRowSplitter() ?? new QuotesSensitiveRowSplitter();
while (await iterator.ReadLineAsync().ConfigureAwait(false))
{
var columns = rowSplitter.SplitRow <CsvColumn>(iterator.GetValue(), _dataProvider.Separator, true);
var model = csvConverter.Convert(columns);
_lineProcessedCallback.Invoke(iterator.CurrentRow, model);
}
}
/// <summary>
/// Process csv data source using <see cref="ICsvRowConvertionStrategy<TModel>"/> strategy
/// Parser extracts header of csv data source and initialize csvConverter
/// </summary>
/// <param name="csvConverter">csv converter</param>
/// <param name="cleanUpResources">clean up resource after obtaining data</param>
/// <returns></returns>
public async Task <bool> ProcessAsync(
ICsvRowConvertionStrategy <TModel> csvConverter,
bool cleanUpResources = true)
{
if (_dataProvider == null)
{
throw new CsvParserException("data Provider is not set");
}
var iterator = _dataProvider.GetIterator();
try
{
if (await iterator.StartAsync().ConfigureAwait(false))
{
var header = await _dataProvider
.GetHeaderAsync(true)
.ConfigureAwait(false);
// initialize csv converter by header row if it has not been initialized before
var isInitialized = csvConverter.IsInitialized || csvConverter.Initialize(header);
if (!isInitialized)
{
throw new CsvParserException("can not initialize csv converter");
}
await ProcessBodyAsync(csvConverter).ConfigureAwait(false);
}
}
finally
{
await iterator.StopAsync().ConfigureAwait(false);
if (cleanUpResources)
{
this.Dispose();
}
}
return(true);
}
