public static NDbResult <List <TSBExchangeGroup> > GetTSBExchangeGroups(TSB tsb,
StateTypes state, FinishedFlags flag, DateTime reqBegin, DateTime reqEnd)
{
var result = new NDbResult <List <TSBExchangeGroup> >();
SQLiteConnection db = Default;
if (null == db)
{
result.DbConenctFailed();
return(result);
}
if (null == tsb)
{
result.ParameterIsNull();
return(result);
}
lock (sync)
{
MethodBase med = MethodBase.GetCurrentMethod();
try
{
string cmd = string.Empty;
cmd += "SELECT * ";
cmd += " FROM TSBExchangeGroupView ";
cmd += " WHERE TSBId = ? ";
cmd += " AND FinishFlag = ? ";
if (state != StateTypes.None)
{
cmd += " AND State = ? ";
}
if (reqBegin != DateTime.MinValue)
{
cmd += " AND RequestDate >= ? ";
if (reqEnd != DateTime.MinValue)
{
cmd += " AND RequestDate <= ? ";
}
}
var rets = NQuery.Query <FKs>(cmd, tsb.TSBId, flag, state, reqBegin, reqEnd).ToList();
var results = rets.ToModels();
result.Success(results);
}
catch (Exception ex)
{
med.Err(ex);
result.Error(ex);
}
return(result);
}
}
/// <summary>
/// Dijkstra pathfinder.
/// </summary>
/// <param name="start">The node to begin the search at.</param>
/// <param name="adj">A function which returns nodes adjacent to the passed in node.</param>
/// <param name="dist">A function that gives the distance between nodes.</param>
/// <param name="fin">A function that returns whether or not the node passed in is the end of the search.</param>
/// <param name="maxnodedepth">The maximum path length.</param>
/// <returns>A list of paths to the different finishing nodes found.</returns>
public static List <List <T> > Dijkstra(T start, Adjacent adj, Distance dist, Finished fin, int maxnodedepth)
{
Comparison <PathNode <T> > pwc = new Comparison <PathNode <T> >(PathWeightCompare);
PriorityQueue <PathNode <T> > open = new PriorityQueue <PathNode <T> >(pwc);
Dictionary <T, double> bestF = new Dictionary <T, double>();
List <List <T> > path = new List <List <T> >();
open.Enqueue(new PathNode <T>(start, null, 0, 0, 0, bestF));
while (!open.Empty)
{
PathNode <T> cur = open.Dequeue();
FinishedFlags isDone = fin(cur.source, cur.g);
if (isDone != 0)
{
Stack <T> s = new Stack <T>();
s.Push(cur.source);
while (cur.prevNode != null)
{
cur = cur.prevNode;
s.Push(cur.source);
}
path.Add(new List <T>());
while (s.Count > 0)
{
path[path.Count - 1].Add(s.Pop());
}
}
if ((isDone & FinishedFlags.FINISHED) != 0)
{
break;
}
List <T> L = adj(cur.source);
if (maxnodedepth != 0 && cur.nt >= maxnodedepth)
{
continue;
}
foreach (T d in L)
{
double ng = cur.g + dist(cur.source, d);
if (bestF.ContainsKey(d))
{
if (ng < bestF[d])
{
for (int i = 0; i < open.Count; i++)
{
if (open[i].source.Equals(d))
{
open.Remove(i);
break;
}
}
}
else
{
continue;
}
}
open.Enqueue(new PathNode <T>(d, cur, ng, 0, cur.nt + 1, bestF));
}
}
return(path);
}
