/// <summary>
/// 创建执行上下文。
/// </summary>
/// <param name="dataPump">数据泵。</param>
/// <param name="metaData">元数据。</param>
/// <param name="rootSavePath">保存路径。</param>
/// <param name="source">数据源。</param>
/// <param name="extractItems">提取项列表。</param>
/// <param name="asyn">异步通知器。</param>
/// <returns>执行上下文。</returns>
internal static DataPumpExecutionContext CreateContext(this DataPumpBase dataPump, Pump metaData, String rootSavePath, SourceFileItem source, IEnumerable <ExtractItem> extractItems, IAsyncProgress asyn = null)
{
DataPumpExecutionContext context = dataPump.CreateContext(metaData, rootSavePath, source);
context.ExtractItems = extractItems;
DataPumpControllableExecutionContext contextEx = context as DataPumpControllableExecutionContext;
if (contextEx != null)
{
contextEx.Reporter = asyn;
}
return(contextEx);
}
/// <summary>
/// 执行数据泵。
/// </summary>
/// <param name="pump">元数据。</param>
/// <param name="savePath">保存路径。</param>
/// <param name="source">数据源。</param>
/// <param name="reporter">异步通知器。</param>
/// <param name="items">提取项列表。</param>
/// <returns>数据泵任务执行上下文。</returns>
public static DataPumpExecutionContext Execute(this Pump pump, String savePath, SourceFileItem source, IAsyncProgress reporter, IEnumerable <ExtractItem> items = null)
{
DataPumpBase dataPump = pump.GetDataPump();
DataPumpExecutionContext context = dataPump.CreateContext(pump, savePath, source);
DataPumpControllableExecutionContext contextEx = context as DataPumpControllableExecutionContext;
if (contextEx != null)
{
contextEx.Reporter = reporter;
}
dataPump.Execute(context);
return(context);
}
/// <summary>
/// 执行数据泵。
/// </summary>
/// <param name="dataPump">元数据。</param>
/// <param name="source">数据源。</param>
/// <param name="reporter">异步通知器。</param>
/// <param name="items">提取项列表。</param>
/// <returns>数据泵任务执行上下文。</returns>
public static DataPumpExecutionContext Execute(this DataPumpBase dataPump, SourceFileItem source, MultiTaskReporterBase reporter, params ExtractItem[] items)
{
DataPumpExecutionContext context = dataPump.CreateContext(source);
context.ExtractItems = items;
DataPumpControllableExecutionContext contextEx = context as DataPumpControllableExecutionContext;
if (contextEx != null)
{
contextEx.Reporter = reporter;
}
dataPump.Execute(context);
return(context);
}
