/// <summary>
/// Returns stream result of the export process.
/// </summary>
/// <param name="moduleNames">Modules to export.</param>
/// <param name="instanceInfo">Instance for which to execute modules.</param>
/// <returns>Result stream</returns>
public Stream GetExportStream(IEnumerable <string> moduleNames, IInstanceInfo instanceInfo)
{
// Create xlsx
IWorkbook document = new XSSFWorkbook();
// Create sheet to store results of text modules, and sumary of all other modules.
ISheet resultSummary = document.CreateSheet("Result summary");
resultSummary.CreateRow("Module", "Result", "Comment", "Description");
// Run every module and write its result.
foreach (string moduleName in moduleNames.Distinct())
{
var module = ModuleLoader.GetModule(moduleName);
var result = module.GetResults(instanceInfo);
var meta = module.GetModuleMetadata();
switch (result.ResultType)
{
case ModuleResultsType.String:
resultSummary.CreateRow(moduleName, result.Result as string, result.ResultComment, meta.Comment);
break;
case ModuleResultsType.List:
document.CreateSheet(moduleName).CreateRows(result.Result as IEnumerable <string>);
resultSummary.CreateRow(moduleName, "See details in tab", result.ResultComment, meta.Comment);
break;
case ModuleResultsType.Table:
document.CreateSheet(moduleName).CreateRows(result.Result as DataTable);
resultSummary.CreateRow(moduleName, "See details in tab", result.ResultComment, meta.Comment);
break;
case ModuleResultsType.ListOfTables:
DataSet data = result.Result as DataSet;
if (data == null)
{
resultSummary.CreateRow(moduleName, "Internal error: Invalid DataSet", result.ResultComment, meta.Comment);
break;
}
ISheet currentSheet = document.CreateSheet(moduleName);
foreach (DataTable tab in data.Tables)
{
// Create header
currentSheet.CreateRow(tab.TableName);
// Write data
currentSheet.CreateRows(tab);
// Create divider
currentSheet.CreateRow();
}
resultSummary.CreateRow(moduleName, "See details in tab", result.ResultComment, meta.Comment);
break;
default:
resultSummary.CreateRow(moduleName, "Internal error: Unknown module", result.ResultComment, meta.Comment);
continue;
}
}
// XWPFDocument.Write closes the stream. NpoiMemoryStream is used to prevent it.
NpoiMemoryStream stream = new NpoiMemoryStream(false);
document.Write(stream);
stream.Seek(0, SeekOrigin.Begin);
stream.AllowClose = true;
return(stream);
}
