/// <summary>
/// Creates a new resource of type collectionName in the repository.
/// </summary>
/// <param name="collectionName">The resource type.</param>
/// <param name="atomEntry">Information about the resource.</param>
/// <returns>A SyndicationItem that describes the newly created resource.</returns>
/// <exception cref="ArgumentNullException">Throws exception if collectionName is null/empty
/// or atomEntry is null/empty .</exception>
SyndicationItem IAtomPubStoreWriter.CreateMember(string collectionName, AtomEntryDocument atomEntry)
{
if (string.IsNullOrEmpty(collectionName))
{
throw new ArgumentNullException("collectionName");
}
if (null == atomEntry)
{
throw new ArgumentNullException("atomEntry");
}
AuthenticatedToken authenticatedToken = CoreHelper.GetAuthenticationToken();
using (ZentityContext context = CoreHelper.CreateZentityContext())
{
if (!authenticatedToken.HasCreatePermission(context))
{
throw new UnauthorizedException(Resources.ATOMPUB_UNAUTHORIZED);
}
ScholarlyWork resource = CreateScholarlyWork(collectionName);
context.AddToResources(resource);
ZentityAtomPubStoreWriter.UpdateResourceProperty(context, resource, atomEntry);
resource.GrantDefaultPermissions(context, authenticatedToken);
context.SaveChanges();
return(ZentityAtomPubStoreReader.GenerateSyndicationItem(this.BaseUri, resource));
}
}
/// <summary>
/// Updates the metadata for the specified resource.
/// </summary>
/// <param name="collectionName">Name of the target collection.</param>
/// <param name="memberResourceId">The Id of the member resource.</param>
/// <param name="atomEntry">Describes the resource to be modified.</param>
/// <returns>A SyndicationItem that describes the updated resource.</returns>
/// <exception cref="ArgumentNullException">Throws exception if collectionName is null/empty
/// or atomEntry is null.</exception>
/// <exception cref="ArgumentException">Throws exception if requested memberResourceId is not a unique identifier.</exception>
SyndicationItem IAtomPubStoreWriter.UpdateMemberInfo(string collectionName, string memberResourceId, AtomEntryDocument atomEntry)
{
if (string.IsNullOrEmpty(collectionName))
{
throw new ArgumentNullException("collectionName");
}
if (string.IsNullOrEmpty(memberResourceId))
{
throw new ArgumentNullException("memberResourceId");
}
if (null == atomEntry)
{
throw new ArgumentNullException("atomEntry");
}
using (ZentityContext context = CoreHelper.CreateZentityContext())
{
ScholarlyWork resource = (ScholarlyWork)AtomPubHelper.GetMember(context, collectionName, memberResourceId, "Update");
resource.Files.Load();
// Bug Fix : 177689 - AtomPub (M2): Author node is appending after every PUT request instead of overwriting it.
resource.Authors.Load();
resource.Contributors.Load();
UpdateResourceProperty(context, resource, atomEntry);
context.SaveChanges();
return(ZentityAtomPubStoreReader.GenerateSyndicationItem(this.BaseUri, resource));
}
}
/// <summary>
/// Gets the specified resource.
/// </summary>
/// <param name="collectionName">The name of the resource type.</param>
/// <param name="memberResourceId">The Guid of the resource to return.</param>
/// <returns>A SyndicationItem for the specified resource.</returns>
/// <exception cref="ArgumentNullException">Throws exception if collectionName is null/empty.</exception>
SyndicationItem IAtomPubStoreReader.GetMember(string collectionName, string memberResourceId)
{
using (ZentityContext context = CoreHelper.CreateZentityContext())
{
ScholarlyWork resource = (ScholarlyWork)AtomPubHelper.GetMember(context, collectionName, memberResourceId, "Read");
return(ZentityAtomPubStoreReader.GenerateSyndicationItem(this.BaseUri, resource));
}
}
/// <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>
/// 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));
}
}
/// <summary>
/// Gets a SyndicationFeed containing resources of type collectionName.
/// </summary>
/// <param name="collectionName">The name of the resource type.</param>
/// <param name="skip">The number of resources to skip from the start.</param>
/// <param name="count">The number of resources to return.</param>
/// <returns>A SyndicationFeed of resources of the specified type.</returns>
/// <exception cref="ArgumentNullException">Throws exception if collectionName is null/empty.</exception>
/// <exception cref="ArgumentException">Throws exception if skip value is negative or count value is negative.</exception>
SyndicationFeed IAtomPubStoreReader.GetMembers(string collectionName, long skip, long count)
{
if (string.IsNullOrEmpty(collectionName))
{
throw new ArgumentNullException("collectionName");
}
if (0 > skip)
{
throw new ArgumentException(Resources.ATOMPUB_INVALID_VALUE, "skip");
}
if (0 > count)
{
throw new ArgumentException(Resources.ATOMPUB_INVALID_VALUE, "count");
}
int skipCount = (int)skip;
int takeCount = (int)count;
ResourceType collectionType = coreHelper.GetResourceType(collectionName);
// Prepare a query to get a resource with specified Id and specified type.
string commandText = string.Format(CultureInfo.InvariantCulture, AtomPubConstants.EsqlToGetAllResources,
collectionType.FullName);
AuthenticatedToken authenticatedToken = CoreHelper.GetAuthenticationToken();
using (ZentityContext zentityContext = CoreHelper.CreateZentityContext())
{
ObjectQuery <ScholarlyWork> resourcesQuery = new ObjectQuery <ScholarlyWork>(commandText, zentityContext);
List <ScholarlyWork> resources = resourcesQuery.Authorize("Read", zentityContext, authenticatedToken)
.OrderByDescending(resource => resource.DateModified)
.Skip(skipCount).Take(takeCount)
.ToList();
List <SyndicationItem> syndicationItems = new List <SyndicationItem>();
if (null != resources && 0 < resources.Count)
{
foreach (ScholarlyWork resource in resources)
{
SyndicationItem syndicationItem = ZentityAtomPubStoreReader.GenerateSyndicationItem(this.BaseUri, resource);
syndicationItems.Add(syndicationItem);
}
}
return(new SyndicationFeed(syndicationItems));
}
}
/// <summary>
/// Creates a <typeref name="System.ServiceModel.Syndication.SyndicationItem"/> item
/// for the given resource.
/// </summary>
/// <param name="resource">The associated resource.</param>
/// <returns>The SyndicationItem Object.</returns>
private static SyndicationItem CreateSyndicationItem(Resource resource)
{
if (null == resource)
{
return(null);
}
SyndicationItem item = new SyndicationItem();
ScholarlyWorks.ScholarlyWork scholarlyWork = resource as ScholarlyWorks.ScholarlyWork;
if (null != scholarlyWork)
{
item = ZentityAtomPubStoreReader.GenerateSyndicationItem(new Uri(
ConfigurationManager.AppSettings["ServiceHost"] +
ConfigurationManager.AppSettings["AtomPubBaseUri"]), scholarlyWork);
}
else
{
//TODO: Would Title be Non Empty always.. If no then what would be the heading for the feed?
item.Title = new TextSyndicationContent(
string.IsNullOrEmpty(resource.Title) ? string.Empty : resource.Title);
item.Id = "urn:guid:" + resource.Id.ToString();
item.Summary = new TextSyndicationContent(resource.Description);
if (null != resource.DateAdded &&
DateTime.MinValue != resource.DateAdded.Value)
{
item.PublishDate = new DateTimeOffset(resource.DateAdded.Value);
}
if (null != resource.DateModified &&
DateTime.MinValue != resource.DateModified.Value)
{
item.LastUpdatedTime = new DateTimeOffset(resource.DateModified.Value);
}
}
return(item);
}
/// <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>
SyndicationItem IAtomPubStoreWriter.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");
}
if (SwordConstants.ZipContentType != mimeType)
{
return(base.CreateMedia(collectionName, mimeType, media, fileExtension));
}
// Convert byte array to stream.
MemoryStream mediaStream = ZentityAtomPubStoreWriter.GetMediaStream(media);
string extractionPath = ExtractZipContent(mediaStream);
HttpContext.Current.Items[SwordConstants.ZipExtractedPath] = extractionPath;
// Get the path of METS xml file.
string metsFilePath = extractionPath + "\\" + SwordConstants.MetsDocumentName;
if (!System.IO.File.Exists(metsFilePath))
{
//string errorMessage = string.Format(CultureInfo.CurrentCulture,
// Properties.Resources.SWORD_MISSING_METS_DOCUMENT,
// SwordConstants.MetsDocumentName);
//throw new MetsException(errorMessage);
return(base.CreateMedia(collectionName, mimeType, media, fileExtension));
}
AuthenticatedToken authenticatedToken = CoreHelper.GetAuthenticationToken();
using (ZentityContext zentityContext = CoreHelper.CreateZentityContext())
{
if (!authenticatedToken.HasCreatePermission(zentityContext))
{
throw new UnauthorizedException(Resources.ATOMPUB_UNAUTHORIZED);
}
// Generate METS document from given METS xml file.
MetsDocument document = new MetsDocument(metsFilePath);
// Create resource of specified collection type.
ScholarlyWork resource = CreateScholarlyWork(collectionName);
resource.DateModified = DateTime.Now;
// Upload the zip file contents as media for main resource.
// This will be required in AtomPub get requests and further use.
Core.File mediaResource = AddFileResource(zentityContext, resource, mediaStream);
mediaResource.MimeType = mimeType;
mediaResource.FileExtension = AtomPubHelper.GetFileExtension(mimeType);
// close the stream
mediaStream.Close();
AddChildResources(extractionPath, document, resource, zentityContext);
resource.GrantDefaultPermissions(zentityContext, authenticatedToken);
mediaResource.GrantDefaultPermissions(zentityContext, authenticatedToken);
// Save all changes at the end
zentityContext.SaveChanges();
return(ZentityAtomPubStoreReader.GenerateSyndicationItem(base.BaseUri, resource));
}
}
