public IEnumerable <RouteResult> Route <T>(RouteRuleContext <T> routeRuleContext)
{
Dictionary <IVirtualTable, ISet <IPhysicTable> > routeMaps = new Dictionary <IVirtualTable, ISet <IPhysicTable> >();
//先添加手动路由到当前上下文,之后将不再手动路由里面的自动路由添加到当前上下文
foreach (var kv in routeRuleContext.ManualTails)
{
var virtualTable = kv.Key;
var addTails = kv.Value;
var physicTables = virtualTable.GetAllPhysicTables().Where(o => addTails.Contains(o.Tail));
if (!routeMaps.ContainsKey(virtualTable))
{
routeMaps.Add(virtualTable, physicTables.ToHashSet());
}
else
{
foreach (var physicTable in physicTables)
{
routeMaps[virtualTable].Add(physicTable);
}
}
}
foreach (var kv in routeRuleContext.ManualPredicate)
{
var virtualTable = kv.Key;
var predicate = kv.Value;
var physicTables = virtualTable.RouteTo(new RouteConfig(null, null, null, predicate));
if (!routeMaps.ContainsKey(virtualTable))
{
routeMaps.Add(virtualTable, physicTables.ToHashSet());
}
else
{
foreach (var physicTable in physicTables)
{
routeMaps[virtualTable].Add(physicTable);
}
}
}
if (routeRuleContext.AutoParseRoute)
{
var shardingEntities = routeRuleContext.Queryable.ParseQueryableRoute();
foreach (var shardingEntity in shardingEntities)
{
var virtualTable = _virtualTableManager.GetVirtualTable(shardingEntity);
var physicTables = virtualTable.RouteTo(new RouteConfig(routeRuleContext.Queryable));
if (!routeMaps.ContainsKey(virtualTable))
{
routeMaps.Add(virtualTable, physicTables.ToHashSet());
}
else
{
foreach (var physicTable in physicTables)
{
routeMaps[virtualTable].Add(physicTable);
}
}
}
}
return(routeMaps.Select(o => o.Value).Cartesian().Select(o => new RouteResult(o)));
}
public IEnumerable <RouteResult> Route <T>(IQueryable <T> queryable, RouteRuleContext <T> ruleContext)
{
var engine = CreateEngine();
return(engine.Route(ruleContext));
}
