public static string GetGraphPartition(this IGraphElementGrain grain)
{
grain.GetPrimaryKey(out var keyExt);
var split = keyExt.Split('|');
return(split.Length == 2 ? split[1] : null);
}
public static string GetGraphLabel(this IGraphElementGrain grain)
{
grain.GetPrimaryKey(out var keyExt);
var split = keyExt.Split('|');
return(split[0]);
}
/// <summary>
/// </summary>
/// <param name="grain"></param>
/// <returns></returns>
public static string ToKeyString(this IGraphElementGrain grain)
{
const int trimStartLength = 14;
const int trimEndLength = 11;
const string prefix = "GrainReference=";
string identityString = grain.GetGrainIdentity().IdentityString;
return(prefix + identityString.Substring(trimStartLength, (identityString.Length - trimEndLength) - trimStartLength));
}
private static IEdgeResult CreateUpdateExpression(GrainReference grainReference, EdgeState edgeState, IGraphElementGrain graphElementGrain)
{
return(g.E()
.has(graphElementGrain.GetGraphLabel(), "id", grainReference.ToKeyString())
.property(edgeState, p => (p.Key, p.Value)));
}
private static IEdgeResult CreateInsertExpression(GrainReference grainReference, EdgeState edgeState, IGraphElementGrain graphElementGrain)
{
var inVertex = edgeState.GetInVertex();
var outVertex = edgeState.GetOutVertex();
var inVertexKeyString = inVertex.ToKeyString();
var outVertexKeyString = outVertex.ToKeyString();
var insertExpression = g.V(inVertexKeyString)
.addE(graphElementGrain.GetGraphLabel())
.to(g.V(outVertexKeyString))
.property("id", grainReference.ToKeyString());
var partition = graphElementGrain.GetGraphPartition();
if (!string.IsNullOrEmpty(partition))
{
insertExpression = insertExpression.property("partition", partition);
}
return(insertExpression.property(edgeState, p => (p.Key, p.Value)));
}
private static IVertexResult CreateInsertExpression(GrainReference grainReference, VertexState vertexState, IGraphElementGrain graphElementGrain)
{
var insertExpression = g.AddV(graphElementGrain.GetGraphLabel())
.property("id", grainReference.ToKeyString());
var partition = graphElementGrain.GetGraphPartition();
if (!string.IsNullOrEmpty(partition))
{
insertExpression = insertExpression.property("partition", partition);
}
return(insertExpression.property(vertexState));
}
private static IVertexResult CreateUpdateExpression(GrainReference grainReference, VertexState vertexState, IGraphElementGrain grainWithGraphElement)
{
return(g.V().has(grainWithGraphElement.GetGraphLabel(), "id", grainReference.ToKeyString()).property(vertexState));
}
/// <summary> /// </summary> /// <param name="grain"></param> /// <returns></returns> public static Guid GetGraphRuntimeId(this IGraphElementGrain grain) => grain.GetPrimaryKey(out _);
public static string GetGraphRuntimeIdString(this IGraphElementGrain grain) => grain.GetGraphRuntimeId().ToString();
