public void CreateEntity <TRecord>(IRecordObjectGetter <TRecord> getter, Func <IPaperContext, TPaperInstance, TData, TRecord, Entity> entityFactory)
{
this.statements.Add(ctx =>
{
if (ctx.OutgoingData.IsPayload)
{
return;
}
var host = (TPaperInstance)ctx.Cache[PaperInstanceKey];
var data = (TData)ctx.Cache[DataKey];
var node = getter.GetNode(ctx);
node.Entity = entityFactory.Invoke(ctx, host, data, node.Record);
if (node.Parent?.Entity is Entity parent)
{
parent.Add(node.Entity);
}
else
{
ctx.Cache[EntityKey] = node.Entity;
}
});
}
public IRecordCollectionGetter <TRecord> PopulateRecords <TRef, TRecord>(IRecordObjectGetter <TRef> @ref, Func <IPaperContext, TPaperInstance, TData, TRef, ICollection <TRecord> > populator)
{
var recordsKey = $"Records-{Guid.NewGuid():B}";
var nodesKey = $"Nodes-{recordsKey}";
this.statements.Add(ctx =>
{
var parent = @ref.GetNode(ctx);
var host = (TPaperInstance)ctx.Cache[PaperInstanceKey];
var data = (TData)ctx.Cache[DataKey];
var records = populator.Invoke(ctx, host, data, parent.Record);
var nodes = records.Select(x => new Node <TRecord> {
Parent = parent, Record = x
}).ToArray();
ctx.Cache[recordsKey] = records;
ctx.Cache[nodesKey] = nodes;
});
return(new RecordCollectionGetter <TRecord>(recordsKey, nodesKey));
}
public IRecordObjectGetter <TRecord> PopulateRecord <TRef, TRecord>(IRecordObjectGetter <TRef> @ref, Func <IPaperContext, TPaperInstance, TData, TRef, TRecord> populator)
{
var recordKey = $"Record-{Guid.NewGuid():B}";
var nodeKey = $"Node-{recordKey}";
this.statements.Add(ctx =>
{
var parent = @ref.GetNode(ctx);
var host = (TPaperInstance)ctx.Cache[PaperInstanceKey];
var data = (TData)ctx.Cache[DataKey];
var record = populator.Invoke(ctx, host, data, parent.Record);
var node = new Node <TRecord> {
Parent = parent, Record = record
};
ctx.Cache[recordKey] = record;
ctx.Cache[nodeKey] = node;
});
return(new RecordGetter <TRecord>(recordKey, nodeKey));
}
public void FormatEntity <TRecord>(IRecordObjectGetter <TRecord> getter, Action <IPaperContext, TPaperInstance, TData, TRecord, Entity> formatter)
{
this.statements.Add(ctx =>
{
if (ctx.OutgoingData.IsPayload)
{
return;
}
var host = (TPaperInstance)ctx.Cache[PaperInstanceKey];
var data = (TData)ctx.Cache[DataKey];
var node = getter.GetNode(ctx);
if (node.Entity == null)
{
node.Entity = CreateDefaultEntity(node.Record);
var parent = node.Parent?.Entity ?? (Entity)ctx.Cache[EntityKey];
parent.Add(node.Entity);
}
formatter.Invoke(ctx, host, data, node.Record, node.Entity);
});
}
