public void CreateDataEntity(Guid userId, DataEntity dataEntity)
{
LoadMetadata();
EntityMetadata em;
List<EntityMetadata> ems = this.metadata.Entities.Where(e => e.Id == dataEntity.Id).ToList();
if (ems.Count == 1)
{
em = ems[0];
}
else
{
em = new EntityMetadata();
this.metadata.Entities.Add(em);
}
TranslateToMetadata(userId, em, dataEntity);
SaveMetadata();
File.WriteAllBytes(Path.Combine(this.entityDirPath, dataEntity.Id.ToString()), dataEntity.Payload.Content);
}
private static void TranslateToMetadata(Guid authorId, EntityMetadata rm, DataEntity e)
{
rm.AesIV = ConvertBinary(e.AesInfo.IV);
rm.AesKey = ConvertBinary(e.AesInfo.Key);
rm.Attributes = new Collection<EntityAttribute>(e.Attributes.Select(a => new EntityAttribute(a.Id, ConvertBinary(a.Keyword))).ToList());
rm.AuthorId = authorId;
rm.Id = e.Id;
rm.Name = ConvertBinary(e.Payload.Name);
rm.Signature = ConvertBinary(e.Signature.Value);
rm.Size = e.Payload.Size;
}
private static DataEntity TranslateFromMetadata(EntityMetadata em)
{
DataEntity e = new DataEntity();
e.AesInfo = new AesEncryptionInfo(ConvertBinary(em.AesKey), ConvertBinary(em.AesIV));
e.Attributes = new List<Attribute>(em.Attributes.Select(a => new Attribute(a.Id, ConvertBinary(a.Keyword))));
e.Id = em.Id;
e.Payload = new FilePayload(ConvertBinary(em.Name), em.Size);
e.Signature = new Signature(ConvertBinary(em.Signature));
return e;
}