/// <summary>
/// This method gets the metadata for the entity.
/// </summary>
/// <param name="blob">The blob.</param>
/// <param name="response">The response to set the necessary parameters.</param>
protected virtual void MetadataGet(CloudBlockBlob blob, StorageHolderBase holder)
{
holder.Fields = blob.Metadata.ToDictionary((k) => k.Key, (k) => k.Value);
if (holder.Fields.ContainsKey(cnMetaContentId))
{
holder.Id = holder.Fields[cnMetaContentId];
}
if (holder.Fields.ContainsKey(cnMetaVersionId))
{
holder.VersionId = holder.Fields[cnMetaVersionId];
}
if (blob.Properties.LastModified.HasValue)
{
holder.LastUpdated = blob.Properties.LastModified.Value.UtcDateTime;
}
if (holder.Fields.ContainsKey(cnMetaDeleted))
{
holder.IsDeleted = holder.Fields[cnMetaDeleted] == "true";
}
holder.ETag = blob.Properties.ETag;
holder.ContentType = blob.Properties.ContentType;
holder.ContentEncoding = blob.Properties.ContentEncoding;
}
/// <summary>
/// This method sets the appropriate metadata for an entity.
/// </summary>
/// <param name="holder">The storage request holder.</param>
/// <param name="deleted">A property indicating whether the entity has been deleted.</param>
protected virtual void MetadataSet(CloudBlockBlob blob
, StorageHolderBase holder
, bool deleted = false)
{
blob.Metadata.Clear();
if (holder.Fields != null)
{
holder.Fields
.Where((k) => !(new[] { cnMetaContentId, cnMetaDeleted }).Contains(k.Key))
.ForEach((k) => MetadataSetItemOrCreate(blob, k.Key, k.Value));
}
MetadataSetItemOrCreate(blob, cnMetaContentId, holder.Id);
if (holder.VersionId != null)
{
MetadataSetItemOrCreate(blob, cnMetaVersionId, holder.VersionId);
}
blob.Properties.ContentType = holder.ContentType ?? cnDefaultContentType;
blob.Properties.ContentEncoding = holder.ContentEncoding;
if (deleted)
{
MetadataSetItemOrCreate(blob, cnMetaDeleted, "true");
}
}
public void CopyTo(StorageHolderBase copyto)
{
copyto.Id = Id;
copyto.VersionId = VersionId;
copyto.ContentType = ContentType;
copyto.ContentEncoding = ContentEncoding;
copyto.Fields = Fields.Select((k) => new { k.Key, k.Value }).ToDictionary((l) => l.Key, (l) => l.Value);
}
