private WebServiceAPIResult uploadCachedOrderInternal(CacheOrder cachedOrder, out string errorMessage)
{
errorMessage = null;
if (IsConnected() == false)
{
errorMessage = "Cannot upload order while service is disconnected";
return(WebServiceAPIResult.ConnectivityFail);
}
// Add any new notes
foreach (NoteInfo note in cachedOrder.NewNotes)
{
if (this.wsAPI.AddNote(cachedOrder.Order.ID, note) == false)
{
errorMessage = string.Format("Failed to add a new note to existing order ID == {0}", cachedOrder.Order.ID);
return(WebServiceAPIResult.Fail);
}
}
// Add any new photos
foreach (PhotoInfo photo in cachedOrder.NewPhotos)
{
if (uploadPhoto(cachedOrder.Order.ID, photo, out errorMessage) == false)
{
return(WebServiceAPIResult.Fail);
}
}
return(WebServiceAPIResult.Success);
}
public PhotoInfo[] GetPhotosForOrder(int orderID)
{
CacheOrder order = GetOrder(orderID);
if (order == null)
{
return(null);
}
return(order.Order.Photos);
}
private CacheOrder getCachedOrder(string existingOrderFile)
{
try
{
string xml = File.ReadAllText(existingOrderFile);
return(CacheOrder.ParseXml(xml));
}
catch
{
return(null);
}
}
// brute force upload - no checking for what needs to be sent
public WebServiceAPIResult UploadCachedOrder(CacheOrder cachedOrder, out string errorMessage)
{
assertInitialized();
try
{
return(uploadCachedOrderInternal(cachedOrder, out errorMessage));
}
catch (Exception ex)
{
errorMessage = buildExceptionErrorMessage(ex);
return(WebServiceAPIResult.Fail);
}
}
public void DeleteOrder(int orderID)
{
CacheOrder cachedOrder = GetOrder(orderID);
if (cachedOrder != null)
{
// Delete photo files (downloaded and new ones)
deleteDirectory(GetOrderSpecificPhotosFolderName(orderID));
// Delete diagram file(s)
deleteDirectory(GetDownloadedDiagramsFolderName(orderID));
// Delete the order file
string path = GetOrderFilePath(orderID);
bestEffortDeleteFile(path);
}
}
public bool SaveOrder(CacheOrder orderToSave)
{
try
{
// get the cache file name that we will be working with
string orderFile = GetOrderFilePath(orderToSave.Order.ID);
// re-order the indexes on the new notes so they go from [0 .. N-1]
int index = 0;
foreach (NoteInfo newNote in orderToSave.NewNotes)
{
newNote.ID = index;
index++;
}
// re-order the indexes on the new photos so they go from [0 .. N-1]
index = 0;
foreach (PhotoInfo newPhoto in orderToSave.NewPhotos)
{
newPhoto.ID = index;
index++;
}
string orderXml = orderToSave.ToXml();
if (File.Exists(orderFile) == true)
{
try
{
File.Delete(orderFile);
}
catch
{
}
}
File.WriteAllText(orderFile, orderXml);
return(true);
}
catch
{
return(false);
}
}
public CacheOrder[] GetAllOrders()
{
List <CacheOrder> cachedOrders = new List <CacheOrder>();
foreach (string file in getOrderFiles())
{
// wrap in try/catch in case file is corrupted
try
{
string xml = File.ReadAllText(file);
CacheOrder cacheOrder = CacheOrder.ParseXml(xml);
if (cacheOrder == null)
{
// assume corrupted file and delete
try
{
File.Delete(file);
}
catch
{
}
}
else
{
cachedOrders.Add(cacheOrder);
}
}
catch
{
try
{
File.Delete(file);
}
catch
{
}
}
}
return(cachedOrders.ToArray());
}
public CacheOrder GetOrder(int orderID)
{
try
{
List <string> orderFiles = getOrderFiles();
foreach (string file in orderFiles)
{
if (file.Contains(orderID.ToString()) == true)
{
if (orderID.ToString() == Path.GetFileNameWithoutExtension(file).Replace(orderFilePrefix, ""))
{
string xml = File.ReadAllText(file);
return(CacheOrder.ParseXml(xml));
}
}
}
return(null);
}
catch
{
return(null);
}
}
private WebServiceAPIResult synchronizeCachedOrderInternal(CacheOrder cachedOrder, out string errorMessage)
{
errorMessage = null;
if (cachedOrder.Status != CacheStatus.SynchPending)
{
// this is an API usage error
throw new InvalidOperationException("Cannot synchronize a cached order that has not been set to the synch pending state");
}
if (IsConnected() == false)
{
errorMessage = "Cannot synchronize order while service is disconnected";
return(WebServiceAPIResult.ConnectivityFail);
}
// establish the baseline client order and the server order against which to compare it
OrderInfo clientOrder = cachedOrder.Order;
OrderInfo serverOrder = wsAPI.GetOrderByID(clientOrder.ID);
if (serverOrder == null)
{
errorMessage = string.Format("Could not download OrderID={0} PO_Number={1} for syncronization", clientOrder.ID, clientOrder.PONumber);
return(WebServiceAPIResult.Fail);
}
// calculate the differences between the local client version of the order and the server version.
// This is necessary because the server data can be updated out of band to this client end-point
// get a list of notes that are NEW in the client but not yet on the server. We do it this way in case previous sync attempts failed
// part-way through, so instead of just uploading the NEW notes we make sure the server does not already have the note.
List <NoteInfo> missingServerNotes = getMissingNotes(serverOrder.Notes, cachedOrder.NewNotes);
// get a list of photos that are NEW in the client but not yet on the server. We do it this way in case previous sync attempts failed
// part-way through, so instead of just uploading the NEW photos we make sure the server does not already have the photo.
List <PhotoInfo> missingServerPhotos = getMissingPhotos(serverOrder.Photos, cachedOrder.NewPhotos);
// Note: the client does not create diagrams so there will never be a missing server diagram
// upload the notes that are missing on the server
onNotesUploadStarted(missingServerNotes.Count);
int numNotesUploaded = 0;;
foreach (NoteInfo note in missingServerNotes)
{
if (wsAPI.AddNote(clientOrder.ID, note) == false)
{
errorMessage = string.Format("Failed to upload note to server for order ID={0} PO_Number={1)", clientOrder.ID, clientOrder.PONumber);
return(WebServiceAPIResult.Fail);
}
numNotesUploaded++;
onNoteUploaded(numNotesUploaded, missingServerNotes.Count);
}
onNotesUploadEnded(missingServerNotes.Count);
// upload the photos that are missing on the server
onPhotosUploadStarted(missingServerPhotos.Count);
int numPhotosUploaded = 0;;
foreach (PhotoInfo photo in missingServerPhotos)
{
if (uploadPhoto(clientOrder.ID, photo, out errorMessage) == false)
{
return(WebServiceAPIResult.Fail);
}
numPhotosUploaded++;
onPhotoUploaded(numNotesUploaded, missingServerNotes.Count);
}
onPhotosUploadEnded(missingServerNotes.Count);
// download the item into the cache from the server to account for any server items that may have
// been missing from the client (or were different)
var result = downLoadOrderToCacheInternal(clientOrder.ID, out errorMessage);
if (result != WebServiceAPIResult.Success)
{
return(result);
}
CacheOrder updatedClientOrder = this.Cache.GetOrder(clientOrder.ID);
if (updatedClientOrder == null)
{
errorMessage = string.Format("Failed to download order ID={0} PO_Number={1} for synchronization", clientOrder.ID, clientOrder.PONumber);
return(WebServiceAPIResult.Fail);
}
// confirm that the download from the server contains everything it should.
foreach (NoteInfo note in missingServerNotes)
{
if (containsNote(note, updatedClientOrder.Order.Notes) == false)
{
errorMessage = string.Format("Failed to confirm note synch for order ID={0} PO_Number={1} for synchronization", clientOrder.ID, clientOrder.PONumber);
return(WebServiceAPIResult.Fail);
}
}
foreach (PhotoInfo photo in missingServerPhotos)
{
if (containsPhoto(photo, updatedClientOrder.Order.Photos) == false)
{
errorMessage = string.Format("Failed to confirm photo synch for order ID={0} PO_Number={1} for synchronization", clientOrder.ID, clientOrder.PONumber);
return(WebServiceAPIResult.Fail);
}
}
return(WebServiceAPIResult.Success);
}
private WebServiceAPIResult downLoadOrderToCacheInternal(int id, out string errorMessage)
{
errorMessage = null;
if (IsConnected() == false)
{
errorMessage = "Cannot download order while service is disconnected";
return(WebServiceAPIResult.ConnectivityFail);
}
// get the order details, notes, and photo references
OrderInfo order = wsAPI.GetOrderByID(id);
if (order == null)
{
errorMessage = string.Format("Could not download order ID={0}", id);
return(WebServiceAPIResult.Fail);
}
// conditionally download the photos if needed and save the images in the cache
List <PhotoInfo> photosToDownload = new List <PhotoInfo>();
foreach (PhotoInfo photo in order.Photos)
{
// Check here to see if the photo is in the 'NewPhotos' section of the cached order. If it is then we can just
// copy the photo from new to previous and avoid the download. Note that we still needed to get the server's
// file name
bool foundMatch = false;
PhotoInfo[] photosInCache = Cache.GetNewPhotosForOrder(order.ID);
PhotoInfo matchingCachePhoto = null;
if (photosInCache != null)
{
foreach (PhotoInfo cachePhoto in photosInCache)
{
if (cachePhoto.Equals(photo))
{
foundMatch = true;
matchingCachePhoto = cachePhoto;
break;
}
}
}
if (foundMatch == true)
{
// modify the cache order by copying the file to its new location and using the server photo info as the updated info
string targetDirectory = Cache.GetDownloadedPhotosFolderName(order.ID);
string targetFileName = photo.FilePath;
string targetFullPath = Path.Combine(targetDirectory, targetFileName);
// copy the file to the existing photo area with the proper info from the server
try
{
if (Directory.Exists(targetDirectory) == false)
{
Directory.CreateDirectory(targetDirectory);
}
File.Copy(matchingCachePhoto.FilePath, targetFullPath);
}
catch
{
photosToDownload.Add(photo);
continue;
}
}
else
{
// check cache first. we want to see if we have the servers photo in our cache but file name/path
// cannot be be used. this is because we use a temp path on the client and it is ultimately resolved on the server.
// so we check the combination of 'entered by' and when it was taken to see if it is a match
foundMatch = false;
photosInCache = Cache.GetPhotosForOrder(order.ID);
if (photosInCache != null)
{
foreach (PhotoInfo cachePhoto in photosInCache)
{
if (cachePhoto.Equals(photo))
{
foundMatch = true;
break;
}
}
}
if (foundMatch == false)
{
photosToDownload.Add(photo);
}
}
}
int numPhotosDownloaded = 0;
if (photosToDownload.Count > 0)
{
onPhotosDownloadStarted(photosToDownload.Count);
}
foreach (PhotoInfo photo in photosToDownload)
{
byte[] photoBytes = wsAPI.DownloadPhoto(photo.ID);
if (photoBytes != null)
{
this.Cache.SaveDownloadedPhoto(order.ID, photo, photoBytes);
}
numPhotosDownloaded++;
onPhotoDownloaded(numPhotosDownloaded, photosToDownload.Count);
}
if (photosToDownload.Count > 0)
{
onPhotosDownloadEnded(numPhotosDownloaded);
}
// Download the diagram if needed and save the image in the cache
if (order.HasDiagram == true)
{
byte[] diagramBytes = wsAPI.DownloadDiagram(order.DiagramNumber);
if (diagramBytes != null)
{
this.Cache.SaveDownloadedDiagram(order.ID, order.DiagramNumber, diagramBytes);
}
}
// now that we have the files copied from the new area to the download area we need to empty out the new photos folder
Cache.ClearNewPhotoDirectory(order.ID);
// save the new order
CacheOrder cacheOrderToSave = new CacheOrder(order, null, null, CacheStatus.Synched);;
if (this.cache.SaveOrder(cacheOrderToSave) == true)
{
return(WebServiceAPIResult.Success);
}
else
{
errorMessage = "Failed to save order to local cache";
return(WebServiceAPIResult.Fail);
}
}