internal DataSet(Xid id, Variant variant)
{
Id = id;
Variant = variant;
Cache = Variant.Cache;
// Check dataset is defined in database
using (var query = new DatabaseQuery(DatabaseQueryString.Create("DataSetCheck")) { Type = CommandType.StoredProcedure }) {
query.Bind("dataSetId", Id.ToGuid());
query.BindOutput("exists", SqlDbType.Int);
query.Execute();
}
}
public Xid SystemCreateDomain(Xid requestingNodeId)
{
// Ask server to create node
Xid domainId;
using (var query = new DatabaseQuery(DatabaseQueryString.Create("DomainCreate")) { Type = CommandType.StoredProcedure }) {
query.Bind("dataSetId", Id.ToGuid());
query.Bind("requestingNodeId", requestingNodeId.ToGuid());
query.BindOutput("id", SqlDbType.UniqueIdentifier);
query.Execute();
domainId = new Xid((Guid)query.Parameters["id"].Value);
}
return domainId;
}
public GenericNode SystemCreateNode(Xid domainId, Xid nodeTypeId, Xid requestingNodeId)
{
// Ask server to create node
Xid nodeId;
using (var query = new DatabaseQuery(DatabaseQueryString.Create("NodeCreate")) { Type = CommandType.StoredProcedure }) {
query.Bind("domainId", domainId.ToGuid());
query.Bind("typeId", nodeTypeId.ToGuid());
query.Bind("requestingNodeId", requestingNodeId.ToGuid());
query.BindOutput("id", SqlDbType.UniqueIdentifier);
query.Execute();
nodeId = new Xid((Guid)query.Parameters["id"].Value);
}
// Preseed cache - BONUS PERFORMANCE
Variant.Cache.Set("node-" + Id.ToString(), new NRecordLoader(nodeId, domainId, nodeTypeId, Id), Variant.GetCacheStoragePolicy());
// Return node
return GetNode(nodeId, requestingNodeId, MaxAge.Any);
}
public GenericAsset SystemCreateAsset(Stream inputStream, string fileName, string contentType, Xid domainId, Xid requestingNodeId, Xid? derivedFromId = null)
{
// Generate key
var key = Token.Generate().ToString();
// Ask server to create asset
Xid assetId;
using (var query = new DatabaseQuery(DatabaseQueryString.Create("AssetCreate")) { Type = CommandType.StoredProcedure }) {
query.Bind("domainId", domainId.ToGuid());
query.Bind("fileName", fileName);
query.Bind("contentType", contentType);
query.Bind("length", inputStream.Length);
if (derivedFromId.HasValue) {
query.Bind("derivedFrom", derivedFromId.Value.ToGuid());
} else {
query.Bind("derivedFrom", DBNull.Value);
}
query.Bind("key", key);
query.Bind("requestingNodeId", requestingNodeId.ToGuid());
query.BindOutput("id", SqlDbType.UniqueIdentifier);
query.Execute();
assetId = new Xid((Guid)query.Parameters["id"].Value);
}
// Create arecord
var record = new ARecordLoader(assetId, domainId, fileName, contentType, inputStream.Length, derivedFromId, key);
// Upload blob
Variant.BlobContainer.Get(record.Key).Put(inputStream, fileName, contentType, -1);
// Preseed cache - BONUS PERFORMANCE
Variant.Cache.Set("asset-" + Id.ToString(), record, Variant.GetCacheStoragePolicy());
return GetAsset(assetId, requestingNodeId, MaxAge.Any);
}