public IEnumerable <Route> Handle(CostProblem costProblem)
{
if (costProblem.Algorithm == "Dijkstra")
{
return(DijkstraCostAlgorithm.Solve(costProblem.Graph, costProblem.Graph.GetByName(costProblem.From), costProblem.Graph.GetByName(costProblem.To)));
}
return(Next != null?Next.Handle(costProblem) : null);
}
public IEnumerable <Route> TrySolve(CostProblem problem)
{
return(new DFS().Solve(
problem.Graph,
problem.Graph.GetByName(problem.From),
problem.Graph.GetByName(problem.To)
));
}
public IEnumerable <Route> Visit(CostProblem costProblem)
{
if (costProblem.Algorithm == this.description)
{
costProblem.Solved = true;
}
return(this.costAlgorithm.Solve(costProblem.Graph, costProblem.Graph.GetByName(costProblem.From), costProblem.Graph.GetByName(costProblem.To)));
}
public IRouteProblem GetProblem(Request request, IGraphDatabase database)
{
if (request.Problem == "Cost")
{
IRouteProblem problem = new CostProblem(request.From, request.To);
problem.SetGraph(database);
return(problem);
}
return(null);
}
public IRouteProblem Apply(Request request)
{
IRouteProblem problem = null;
if (Next != null)
{
problem = Next.Apply(request);
}
if (problem == null && request.Problem == "Cost")
{
problem = new CostProblem(request.From, request.To, request.Solver);
}
return(problem);
}
public override IEnumerable <Route> Solve(Request request, IRouteProblem problem, IGraphDatabase database)
{
if (NextInChain == null)
{
return(null);
}
if (request.Problem == "Cost")
{
IRouteProblem newproblem = new CostProblem(request.From, request.To);
newproblem.Graph = database;
return(NextInChain.Solve(request, newproblem, database));
}
else
{
return(NextInChain.Solve(request, problem, database));
}
}
public override bool TrySolveProblem(CostProblem costProblem, out IEnumerable <Route> routes)
{
routes = Solve(costProblem.Graph, costProblem.Graph.GetByName(costProblem.From), costProblem.Graph.GetByName(costProblem.To));
return(true);
}
public abstract bool TrySolveProblem(CostProblem costProblem, out IEnumerable <Route> routes);
public override bool TrySolveProblem(CostProblem timeProblem, out IEnumerable <Route> routes)
{
routes = null;
return(false);
}
public bool CanSolve(CostProblem problem)
{
return(false);
}
public bool CanSolve(CostProblem problem)
{
return(true);
}