/// <summary> /// Updates the Resource.File of the specified resource. /// </summary> /// <param name="collectionName">The type of the resource.</param> /// <param name="memberResourceId">The resource whose File needs to be updated.</param> /// <param name="mimeType">The MIME type of media.</param> /// <param name="media">The new File contents.</param> /// <returns>A SyndicationItem that describes the updated resource.</returns> /// <exception cref="ArgumentNullException">Throws exception if collectionName is null/empty /// or media is null.</exception> /// <exception cref="ArgumentException">Throws exception if requested memberResourceId is not a unique identifier.</exception> SyndicationItem IAtomPubStoreWriter.UpdateMedia(string collectionName, string memberResourceId, string mimeType, byte[] media) { if (string.IsNullOrEmpty(collectionName)) { throw new ArgumentNullException("collectionName"); } if (null == media) { throw new ArgumentNullException("media"); } if (string.IsNullOrEmpty(memberResourceId)) { throw new ArgumentNullException("memberResourceId"); } if (!AtomPubHelper.IsValidGuid(memberResourceId)) { throw new ArgumentException(Resources.ATOMPUB_INVALID_RESOURCE_ID, "memberResourceId"); } using (ZentityContext context = CoreHelper.CreateZentityContext()) { Type collectionType = CoreHelper.GetSystemResourceType(collectionName); // Prepare a query to get a resource with specified Id and specified type. string commandText = string.Format(CultureInfo.InvariantCulture, AtomPubConstants.EsqlToGetFileContents, collectionType.FullName); ObjectQuery <Core.File> query = new ObjectQuery <Core.File>(commandText, context); query.Parameters.Add(new ObjectParameter("Id", new Guid(memberResourceId))); Core.File mediaResource = query.FirstOrDefault(); if (null == mediaResource) { throw new ResourceNotFoundException(Resources.ATOMPUB_RESOURCE_NOT_FOUND); } if (!mediaResource.Authorize("Update", context, CoreHelper.GetAuthenticationToken())) { throw new UnauthorizedException(Resources.ATOMPUB_UNAUTHORIZED); } mediaResource.Resources.Load(); ScholarlyWork resource = (ScholarlyWork)mediaResource.Resources.First(); resource.DateModified = DateTime.Now; mediaResource.MimeType = mimeType; mediaResource.FileExtension = AtomPubHelper.GetFileExtension(mimeType); MemoryStream mediaStream = ZentityAtomPubStoreWriter.GetMediaStream(media); context.UploadFileContent(mediaResource, mediaStream); // Bug Fix : 180811 - Save Changes once mime type and contents are set. context.SaveChanges(); return(ZentityAtomPubStoreReader.GenerateSyndicationItem(this.BaseUri, resource)); } }
/// <summary> /// Adds the file resource. /// </summary> /// <param name="context">The context.</param> /// <param name="resource">The resource.</param> /// <param name="mediaFilePath">The media file path.</param> /// <returns>The added <see cref="Core.File"/> type.</returns> private static Core.File AddFileResource( ZentityContext context, ScholarlyWork resource, string mediaFilePath) { Core.File mediaResource = AddFileResource(context, resource); context.UploadFileContent(mediaResource, mediaFilePath); return(mediaResource); }
/// <summary> /// Adds the file resource. /// </summary> /// <param name="context">The context.</param> /// <param name="resource">The resource.</param> /// <param name="mediaStream">The media stream.</param> /// <returns>The added <see cref="Core.File"/> type.</returns> private static Core.File AddFileResource( ZentityContext context, ScholarlyWork resource, Stream mediaStream) { Core.File mediaResource = AddFileResource(context, resource); mediaStream.Position = 0; context.UploadFileContent(mediaResource, mediaStream); return(mediaResource); }
/// <summary> /// Creates a new Resource.File for a specified resource of type collectionName in the repository. /// </summary> /// <param name="collectionName">The resource type.</param> /// <param name="mimeType">The MIME type of media.</param> /// <param name="media">The new File contents.</param> /// <param name="fileExtension">The media file extension.</param> /// <returns>A SyndicationItem that describes the newly created resource.</returns> /// <exception cref="ArgumentNullException">Throws exception if collectionName is null/empty /// or mimeType is null/empty or media is null.</exception> protected SyndicationItem CreateMedia(string collectionName, string mimeType, byte[] media, string fileExtension) { if (string.IsNullOrEmpty(collectionName)) { throw new ArgumentNullException("collectionName"); } if (string.IsNullOrEmpty(mimeType)) { throw new ArgumentNullException("mimeType"); } if (null == media) { throw new ArgumentNullException("media"); } AuthenticatedToken authenticatedToken = CoreHelper.GetAuthenticationToken(); using (ZentityContext context = CoreHelper.CreateZentityContext()) { if (!authenticatedToken.HasCreatePermission(context)) { throw new UnauthorizedException(Resources.ATOMPUB_UNAUTHORIZED); } ScholarlyWork resource = CreateScholarlyWork(collectionName); resource.DateModified = DateTime.Now; Core.File mediaResource = new Core.File(); mediaResource.MimeType = mimeType; mediaResource.FileExtension = string.IsNullOrEmpty(fileExtension) ? AtomPubHelper.GetFileExtension(mimeType) : fileExtension; context.AddToResources(mediaResource); context.SaveChanges(); resource.Files.Add(mediaResource); MemoryStream mediaStream = ZentityAtomPubStoreWriter.GetMediaStream(media); context.UploadFileContent(mediaResource, mediaStream); mediaStream.Close(); resource.GrantDefaultPermissions(context, authenticatedToken); mediaResource.GrantDefaultPermissions(context, authenticatedToken); context.SaveChanges(); return(ZentityAtomPubStoreReader.GenerateSyndicationItem(this.BaseUri, resource)); } }