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static private FromMetadata ( |
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| metadata | The |
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| 리턴 | ||
public async static Task <IEnumerable <MobileServiceFile> > GetFilesAsync <T>(this IMobileServiceSyncTable <T> table, T dataItem)
{
IFileSyncContext context = table.MobileServiceClient.GetFileSyncContext();
var fileMetadata = await context.MetadataStore.GetMetadataAsync(table.TableName, GetDataItemId(dataItem));
return(fileMetadata.Where(m => !m.PendingDeletion).Select(m => MobileServiceFile.FromMetadata(m)));
}
public async Task PullFilesAsync(string tableName, string itemId)
{
IEnumerable <MobileServiceFile> files = await this.mobileServiceFilesClient.GetFilesAsync(tableName, itemId);
foreach (var file in files)
{
FileSynchronizationAction syncAction = FileSynchronizationAction.Update;
MobileServiceFileMetadata metadata = await this.metadataStore.GetFileMetadataAsync(file.Id);
if (metadata == null)
{
syncAction = FileSynchronizationAction.Create;
metadata = MobileServiceFileMetadata.FromFile(file);
metadata.ContentMD5 = null;
metadata.LastModified = null;
}
if (string.Compare(metadata.ContentMD5, file.ContentMD5, StringComparison.Ordinal) != 0 ||
(metadata.LastModified == null || metadata.LastModified.Value.ToUniversalTime() != file.LastModified.Value.ToUniversalTime()))
{
metadata.LastModified = file.LastModified;
metadata.ContentMD5 = file.ContentMD5;
await this.metadataStore.CreateOrUpdateAsync(metadata);
await this.syncHandler.ProcessFileSynchronizationAction(file, syncAction);
NotifyFileOperationCompletion(file, syncAction.ToFileOperationKind(), FileOperationSource.ServerPull);
}
}
var fileMetadata = await this.metadataStore.GetMetadataAsync(tableName, itemId);
var deletedItemsMetadata = fileMetadata.Where(m => !files.Any(f => string.Compare(f.Id, m.FileId) == 0));
foreach (var metadata in deletedItemsMetadata)
{
IMobileServiceFileOperation pendingOperation = await this.operationsQueue.GetOperationByFileIdAsync(metadata.FileId);
// TODO: Need to call into the sync handler for conflict resolution here...
if (pendingOperation == null || pendingOperation is DeleteMobileServiceFileOperation)
{
await metadataStore.DeleteAsync(metadata);
await this.syncHandler.ProcessFileSynchronizationAction(MobileServiceFile.FromMetadata(metadata), FileSynchronizationAction.Delete);
NotifyFileOperationCompletion(MobileServiceFile.FromMetadata(metadata), FileOperationKind.Delete, FileOperationSource.ServerPull);
}
}
}
public async Task UploadFileAsync(MobileServiceFileMetadata metadata, IMobileServiceFileDataSource dataSource)
{
if (metadata == null)
{
throw new ArgumentNullException("metadata");
}
if (dataSource == null)
{
throw new ArgumentNullException("dataSource");
}
StorageToken token = await GetStorageToken(this.client, MobileServiceFile.FromMetadata(metadata), StoragePermissions.Write);
await this.storageProvider.UploadFileAsync(metadata, dataSource, token);
}
private async Task <StorageToken> GetStorageToken(IMobileServiceClient client, MobileServiceFileMetadata metadata, StoragePermissions permissions)
{
return(await GetStorageToken(client, MobileServiceFile.FromMetadata(metadata), permissions));
}