public EntityPart UpdateEntityPartData(string partName, string eTag, string newData)
{
//TODO: Check e-tag
var entityPart = GetEntityPartPackagePart(partName);
//Copy the data to the entity part
using (var fileStream = new StringStream(newData))
{
fileStream.CopyTo(entityPart.GetStream());
}
//Update the metadata part.
var entityPartMetadata = GetEntityPartMetadata(partName);
entityPartMetadata.Modified = DateTime.Now;
entityPartMetadata.ModifiedBy = User.GetCurrentUser().LoginName;
entityPartMetadata.Etag.IncrementBy(1);
var entityPartMetadataPart = GetEntityPartMetadataPackagePart(partName);
var metadata = JsonConvert.SerializeObject(entityPartMetadata, new EtagJsonConverter());
//Copy the metadata to the entity part metadata part.
using (var fileStream = new StringStream(metadata))
{
fileStream.CopyTo(entityPartMetadataPart.GetStream());
}
return(GetEntityPart(partName, true));
}
private EntityPart CreateEntityPart(string partName, EntityPartMetadata entityPartMetadata, string data)
{
if (partName.IsNullOrWhiteSpace())
{
throw new ArgumentNullException("partName");
}
if (entityPartMetadata == null)
{
throw new ArgumentNullException("entityPartMetadata");
}
var entityPartUri = GetEntityPartUriFromEntityPartName(partName);
if (m_package.PartExists(entityPartUri))
{
throw new InvalidOperationException("An entity part with the specified name already exists within the entity.");
}
var entityPart =
m_package.CreatePart(entityPartUri, Data.Constants.EntityPartContentType);
//Copy the data to the entity part
using (var fileStream = new StringStream(data))
{
fileStream.CopyTo(entityPart.GetStream());
}
//Create a relationship between the default entity part and the entity part.
var defaultEntityPart = GetDefaultEntityPartPackagePart();
defaultEntityPart.CreateRelationship(entityPartUri, TargetMode.Internal, Data.Constants.EntityPartRelationship);
//Create the entity part metadata object.
var entityPartMetadataUri = GetEntityPartMetadataUriFromEntityPartName(partName);
var entityPartMetadataPart = m_package.CreatePart(entityPartMetadataUri, Data.Constants.EntityPartContentType);
var metadata = JsonConvert.SerializeObject(entityPartMetadata, new EtagJsonConverter());
//Copy the metadata to the entity part metadata part.
using (var fileStream = new StringStream(metadata))
{
fileStream.CopyTo(entityPartMetadataPart.GetStream());
}
//Finally, create the relationship between the entity part and its metadata -- not that we couldn't have found it by convention.
entityPart.CreateRelationship(entityPartMetadataUri, TargetMode.Internal, Data.Constants.EntityPartMetadataRelationship);
return(MapEntityPartFromPackagePart(entityPart));
}
private static void InitializeEntityPackage(Package package, Guid?entityId, string @namespace, string title, string data)
{
if (@namespace.IsNullOrWhiteSpace())
{
throw new ArgumentException(@"An entity namespace must be specified.", "namespace");
}
if (entityId.HasValue == false)
{
entityId = Guid.NewGuid();
}
if (title.IsNullOrWhiteSpace())
{
title = entityId.ToString();
}
// Add the metadata part to the Package.
package.PackageProperties.Identifier = entityId.Value.ToString();
package.PackageProperties.ContentType = Constants.EntityPackageContentType;
package.PackageProperties.Subject = @namespace;
package.PackageProperties.Title = title;
package.PackageProperties.Created = DateTime.Now;
package.PackageProperties.Creator = User.GetCurrentUser().LoginName;
package.PackageProperties.Modified = DateTime.Now;
package.PackageProperties.LastModifiedBy = User.GetCurrentUser().LoginName;
// Add the default entity part to the Package.
var defaultEntityPart =
package.CreatePart(DefaultEntityPartUri, Constants.EntityPartContentType);
//Copy the data to the default entity part
if (data.IsNullOrWhiteSpace())
{
return;
}
using (var fileStream = new StringStream(data))
{
fileStream.CopyTo(defaultEntityPart.GetStream());
}
}
public Entity UpdateDefaultEntityPartData(string etag, string data)
{
//TODO: Check to see if the eTag matches.
var defaultEntityPartPackagePart = GetDefaultEntityPartPackagePart();
//Copy the data to the default entity part
using (var fileStream = new StringStream(data))
{
fileStream.CopyTo(defaultEntityPartPackagePart.GetStream());
}
//Bump the modified by and modified date.
m_package.PackageProperties.Modified = DateTime.Now;
m_package.PackageProperties.LastModifiedBy = User.GetCurrentUser().LoginName;
//TODO: Bump the etag...
return(MapEntityFromPackage(true));
}
private Attachment CreateAttachment(string fileName, AttachmentMetadata attachment, Stream attachmentData)
{
if (fileName.IsNullOrWhiteSpace())
{
throw new ArgumentNullException("fileName");
}
if (attachment == null)
{
throw new ArgumentNullException("attachment");
}
var defaultEntityPart = GetDefaultEntityPartPackagePart();
var attachmentRelationships = defaultEntityPart.GetRelationshipsByType(Data.Constants.AttachmentRelationship);
var attachmentUri = GetAttachmentUriFromAttachmentFileName(fileName);
var attachmentMetadataUri = GetAttachmentMetadataUriFromAttachmentFileName(fileName);
var existingAttachmentRelationship = attachmentRelationships.FirstOrDefault(ar => ar.TargetUri == attachmentUri);
if (existingAttachmentRelationship != null)
{
throw new InvalidOperationException("An attachment with the specified name already exists in the package: " + fileName);
}
var attachmentPackagePart =
m_package.CreatePart(attachmentUri, StringHelper.GetMimeTypeFromFileName(fileName));
if (attachmentData != null)
{
attachmentData.CopyTo(attachmentPackagePart.GetStream());
}
//Create a relationship between the default entity part and the attachment part.
defaultEntityPart.CreateRelationship(attachmentUri, TargetMode.Internal, Data.Constants.EntityPartRelationship);
//Create the attachment metadata object.
var attachmentMetadataPackagePart = m_package.CreatePart(attachmentMetadataUri, Data.Constants.EntityPartContentType);
//Throw the metadata in the file.
var attachmentMetadata = new AttachmentMetadata
{
Category = attachment.Category,
Created = attachment.Created,
CreatedBy = attachment.CreatedBy,
Etag = attachment.Etag.IncrementBy(1),
FileName = fileName,
Modified = attachment.Modified,
ModifiedBy = attachment.ModifiedBy,
Path = attachment.Path,
Properties = attachment.Properties,
Size = attachment.Size,
TimeLastModified = attachment.TimeLastModified,
Url = attachment.Url
};
var metadata = JsonConvert.SerializeObject(attachmentMetadata, new EtagJsonConverter());
//Copy the metadata to the entity part metadata part.
using (var fileStream = new StringStream(metadata))
{
fileStream.CopyTo(attachmentMetadataPackagePart.GetStream());
}
return(MapAttachmentFromPackagePart(attachmentPackagePart));
}
