/// <summary>
/// Imports the given ImportCandidate and adds a new entry in the database. The pages to be imported are extracted from the original document
/// into a temporary PDF file, which is then moved to the archive folder.
/// </summary>
/// <param name="importCandidate">The ImportCandidate that shall be imported into the database.</param>
/// <returns></returns>
/// <exception cref="SheetAlreadyExistsException"></exception>
public async Task ImportImportCandidate(ImportCandidate importCandidate)
{
//Check if Sheet is already in Database
//Throw if true
foreach (var sheet in importCandidate.AssignedPiece.Sheet)
{
if (sheet.Part == importCandidate.AssignedPart)
{
throw new SheetAlreadyExistsException(sheet, importCandidate);
}
}
//Create database entry (only if sheet does not exists yet)
Sheet newSheet = new Sheet(importCandidate.AssignedPart, importCandidate.AssignedPiece);
await Manager.Context.Sheet.AddAsync(newSheet);
await Manager.Context.SaveChangesAsync();
//Extract page
Extractor.InputFile = new FileInfo(importCandidate.DocumentPath);
Extractor.OutputPath = new DirectoryInfo(Manager.ZebraConfig.TempDir);
Extractor.OutputName = FileNameResolver.GetFileName(newSheet);
int[] pages = new int[importCandidate.Pages.Count];
for (int i = 0; i < importCandidate.Pages.Count; i++)
{
pages[i] = importCandidate.Pages[i].PageNumber;
}
try
{
//Extract pages to be imported and save into temp PDF file
await Extractor.ExtractAsync(pages);
//Push file to archive
Manager.Archive.PushFile(new FileInfo(Manager.ZebraConfig.TempDir + "\\" + FileNameResolver.GetFileName(newSheet)), newSheet, FileImportMode.Copy, false);
}
catch (Exception)
{
//Undo Sheet creation in Database
Manager.Context.Sheet.Remove(newSheet);
Manager.Context.SaveChanges();
throw;
}
finally
{
//Remove temp file if it has been created
if (File.Exists(Manager.ZebraConfig.TempDir + "\\" + FileNameResolver.GetFileName(newSheet)))
{
File.Delete(Manager.ZebraConfig.TempDir + "\\" + FileNameResolver.GetFileName(newSheet));
}
}
}
public void AddDocument(string pdfDocument)
{
PreviewablePdfDocument doc = new PreviewablePdfDocument(pdfDocument);
SortedList <int, ImportPage> pages = new SortedList <int, ImportPage>();
ImportCandidate newCandidate = new ImportCandidate(pdfDocument);
for (int i = 0; i < doc.PageCount(); i++)
{
ImportPage page = new ImportPage(newCandidate, i + 1, doc.Pages[i].Thumbnail);
newCandidate.Pages.Add(page);
}
ImportCandidates.Add(newCandidate);
}
public ImportPage(ImportCandidate parent, int pageNumber, System.Drawing.Image thumbnail)
{
PageNumber = pageNumber;
Thumbnail = thumbnail;
ImportCandidate = parent;
}
/// <summary>
/// Imports the given importCandidate and removes it from the ImportBatch.
/// </summary>
/// <param name="importCandidate">ImportCandidate to be imported.</param>
/// <returns></returns>
public async Task ImportCandidateAsync(ImportCandidate importCandidate)
{
await Importer.ImportImportCandidate(importCandidate);
ImportCandidates.Remove(importCandidate);
}
public SheetAlreadyExistsException(Sheet _sheet, ImportCandidate _candidate) : base($"Sheet {_sheet.Piece.Name} - {_sheet.Part.Name} already exists.")
{
ExistingSheet = _sheet;
Candidate = _candidate;
}
