/// <summary>
/// Determines the default dependency value for a fragmentflow. not fast.
/// </summary>
/// <param name="repository"></param>
/// <param name="fragmentFlowId"></param>
/// <param name="scenarioId"></param>
/// <returns></returns>
public static double? GetDefaultValue(this IRepository<FragmentFlow> repository,
int fragmentFlowId, int scenarioId = Scenario.MODEL_BASE_CASE_ID)
{
FragmentFlow fragmentFlow = repository.Queryable()
.Where(k => k.FragmentFlowID == fragmentFlowId)
.Where(k => k.ParentFragmentFlow.NodeTypeID == 1)
.FirstOrDefault();
if (fragmentFlow == null)
return null;
var ncm = new NodeCacheModel()
{
NodeTypeID = 1,
FragmentFlowID = (int)fragmentFlow.ParentFragmentFlowID
};
var parentNode = repository.LTerminate(ncm, scenarioId, false);
return repository.GetRepository<ProcessFlow>().FlowExchange((int)parentNode.ProcessID, fragmentFlow.FlowID,
comp(fragmentFlow.DirectionID)); // double comp!
}
/// <summary>
/// Determine dependency flows required by the fragmentflow termination being supplied.
/// This function assumes that all flow+direction combinations are distinct for processes and fragments.
/// (for fragments, node outflows are grouped by flow+direction)
/// </summary>
/// <param name="term">FragmentNodeResource corresponding to the terminus of the current FragmentFlow</param>
/// <param name="ex_directionId">Direction of the physical flow with respect to the *parent*</param>
/// <param name="flow_exch">out param set equal to the inflow's exchange</param>
/// <returns></returns>
public IEnumerable<InventoryModel> GetScenarioProductFlows(NodeCacheModel theFragmentFlow, int scenarioId, out double nodeWeight, out int? ilcdEntityId)
{
FlowTerminationModel term = _fragmentFlowService.Terminate(theFragmentFlow,scenarioId, true); // resolve background
// first, calculate node weight
double? flow_conv = _flowFlowPropertyService.FlowConv(theFragmentFlow.FlowID, term.TermFlowID, scenarioId);
if (flow_conv == null)
{
throw new ArgumentNullException("Flow conversion was not found and cannot be null");
}
double flow_exch;
// and incoming exchange
// note this is not subject to parameter adjustment
IEnumerable<InventoryModel> Outflows;
switch (term.NodeTypeID)
{
case 1:
{
// process-- lookup exchange and outflows separately
//var _flow_exch = _processFlowService.FlowExchange((int)term.ProcessID, term.TermFlowID, theFragmentFlow.DirectionID);
//if (_flow_exch == null)
//{
// throw new ArgumentNullException("Process inflow not found!");
//}
//flow_exch = (double)_flow_exch;
//Outflows = _processFlowService.GetDependencies((int)term.ProcessID, term.TermFlowID, theFragmentFlow.DirectionID);
if (term.BalanceFFID == null)
{
// no conservation performed
var FFM = _processFlowService.LookupDependencies(theFragmentFlow.FragmentFlowID, term, scenarioId).ToList();
flow_exch = (double)FFM.Where(k => k.FlowID == term.TermFlowID && k.DirectionID != theFragmentFlow.DirectionID)
.Select(k => k.Result).First();
Outflows = FFM.Where(k => k.FragmentFlowID != null).ToList();
}
else
{
var CM = _processFlowService.LookupConservationFlows(theFragmentFlow.FragmentFlowID, term, scenarioId).ToList();
flow_exch = (double)CM.Where(k => k.FlowID == term.TermFlowID && k.DirectionID != theFragmentFlow.DirectionID)
.Select(k => k.Result).First();
var balanceDir = CM.Where(k => k.FragmentFlowID == term.BalanceFFID).Select(k => k.DirectionID).First();
var balance = CM.Where(k => k.DirectionID != balanceDir).Sum(k => k.FlowPropertyResult)
- CM.Where(k => k.DirectionID == balanceDir).Where(k => k.FragmentFlowID != term.BalanceFFID)
.Sum(k => k.FlowPropertyResult);
foreach (var bf in CM.Where(k => k.FragmentFlowID == term.BalanceFFID))
bf.FlowPropertyResult = balance;
Outflows = CM.Where(k => k.FragmentFlowID != null).ToList();
}
break;
}
case 2:
{
// does the subfragment exist in the cache? if so, use that
if (_nodeCacheService.IsCached((int)term.SubFragmentID,term.ScenarioID))
Outflows = _fragmentFlowService.GetDependencies((int)term.SubFragmentID, term.TermFlowID, theFragmentFlow.DirectionID,
out flow_exch, term.ScenarioID);
else
{
// have we already traversed this subfragment in this unit of work?
int subFragRefFlow = _fragmentFlowService
.Query(k => k.FragmentID == term.SubFragmentID && k.ParentFragmentFlowID == null)
.Select(k => k.FragmentFlowID).First();
if (!nodeCaches.Any(k => k.FragmentFlowID == subFragRefFlow))
{
// if not, we need to
Traverse((int)term.SubFragmentID, term.ScenarioID);
}
// access the cache to determine outflow amounts
//Outflows = _fragmentFlowService.GetDependencies((int)term.SubFragmentID,term.TermFlowID,ex_directionId,
// out flow_exch, term.ScenarioID);
Outflows = GetDependencies((int)term.SubFragmentID, term.TermFlowID, theFragmentFlow.DirectionID,
out flow_exch, term.ScenarioID);
}
break;
}
default:
{
Outflows = new List<InventoryModel>();
flow_exch = 1;
break;
}
}
if (flow_exch == 0)
{
throw new ArgumentException("The inflow result cannot be 0");
}
nodeWeight = (double)flow_conv / flow_exch;
ilcdEntityId = term.ILCDEntityID;
return Outflows;
}
/// <summary>
/// Lazy flow termination-- FNF and FNP are looked up now
/// </summary>
/// <param name="repository"></param>
/// <param name="ff"></param>
/// <param name="scenarioId"></param>
/// <param name="doBackground"></param>
/// <returns></returns>
public static FlowTerminationModel LTerminate(this IRepository<FragmentFlow> repository,
NodeCacheModel ff, int scenarioId, bool doBackground)
{
var fragmentNode = new FlowTerminationModel();
int inFlowId;
switch (ff.NodeTypeID)
{
case 1:
{
fragmentNode = repository.LGetFragmentNodeProcess(ff.FragmentFlowID, scenarioId);
break;
}
case 2:
{
fragmentNode = repository.LGetFragmentNodeFragment(ff.FragmentFlowID, scenarioId);
break;
}
case 3:
{
if (ff.FlowID == null)
{
throw new ArgumentNullException("FragmentFlow.FlowID must be set!");
}
fragmentNode.NodeTypeID = 3;
//fragmentNode.ILCDEntityID = ff.FragmentFlowID;
fragmentNode.ScenarioID = scenarioId;
fragmentNode.TermFlowID = (int)ff.FlowID;
break;
}
default:
{
if (ff.FlowID == null)
{
throw new ArgumentNullException("FragmentFlow.FlowID must be set!");
}
else inFlowId = (int)ff.FlowID;
if (doBackground)
{
fragmentNode = repository.GetRepository<Background>()
.ResolveBackground(inFlowId, ff.DirectionID, scenarioId);
}
else
{
//fragmentNode.ILCDEntityID = ff.FragmentFlowID;
fragmentNode.ScenarioID = scenarioId;
fragmentNode.TermFlowID = inFlowId;
}
break;
}
}
return fragmentNode;
}
