public override IEnumerable <Route> Solve(Request request, IRouteProblem problem, IGraphDatabase database)
{
if (problem == null)
{
return(null);
}
if (request.Solver == "Dijkstra")
{
if (request.Problem == "Cost")
{
return(problem.Solve(new DijkstraCost()));
}
else
{
return(problem.Solve(new DijkstraTime()));
}
}
else
{
if (NextInChain == null)
{
return(null);
}
else
{
return(NextInChain.Solve(request, problem, database));
}
}
}
public override IEnumerable <Route> Solve(Request request, IRouteProblem problem, IGraphDatabase database)
{
if (NextInChain == null)
{
return(null);
}
if (request.Problem == "Time")
{
IRouteProblem newproblem = new TimeProblem(request.From, request.To);
newproblem.Graph = database;
return(NextInChain.Solve(request, newproblem, database));
}
else
{
return(NextInChain.Solve(request, problem, database));
}
}
public override IEnumerable <Route> Solve(Request request, IRouteProblem problem, IGraphDatabase database)
{
if (request.From == null || request.From == "" ||
request.To == null || request.To == "" ||
request.Filter.MinPopulation < 0 ||
request.Filter.AllowedVehicles.Count == 0)
{
return(null);
}
if (NextInChain != null)
{
return(NextInChain.Solve(request, problem, database));
}
else
{
return(null);
}
}
public override IEnumerable <Route> Solve(Request request, IRouteProblem problem, IGraphDatabase database)
{
if (problem == null)
{
return(null);
}
if (request.Solver == "BFS")
{
return(problem.Solve(new BFS()));
}
else
{
if (NextInChain == null)
{
return(null);
}
else
{
return(NextInChain.Solve(request, problem, database));
}
}
}
public override string Decrypt(string value)
{
string decrypted;
if (NextInChain == null)
{
decrypted = value;
}
else
{
decrypted = NextInChain.Decrypt(value);
}
if (Encrypt(decrypted) == value)
{
return(decrypted);
}
else
{
Encrypt(decrypted);
throw new ArgumentException();
}
}
