public static IEnumerable<Result> ReadGlpk(Metadata metadata)
{
foreach (var variable in metadata.Variables)
{
var path = Path.Combine(@"res\csv", $"{variable.Name}.csv");
Console.WriteLine($"Reading results from {path}");
var lines = File.ReadAllLines(path).Skip(1);
var resultItems = lines.Select(l =>
{
var values = l.Split(',').Select(v => v.Trim('"')).ToList();
return new VariableResultItem
{
C = values.Take(variable.Sets.Count()),
V = decimal.Parse(values.Last(), NumberStyles.Float, new NumberFormatInfo {NumberDecimalSeparator = "."}),
};
});
yield return new Result
{
ScenarioId = metadata.ScenarioId,
ModelId = metadata.ModelId,
VariableId = variable.Id,
Sets = variable.Sets.Select(s => new VariableSet {Id = s.Id, Index = s.Index}),
Data = resultItems.ToList(),
};
}
}
public static IEnumerable<Result> ReadCplex(Metadata metadata)
{
var path = Path.Combine(@"res", "cplexoutput.sol");
Console.WriteLine($"Reading results from {path}");
var lines = File.ReadAllLines(path).Where(l => l.StartsWith(" <variable")).Select(l => l.Trim());
var variableResults = metadata.Variables.ToDictionary(v => v.Name, v => new Result
{
ScenarioId = metadata.ScenarioId,
ModelId = metadata.ModelId,
VariableId = v.Id,
Sets = v.Sets.Select(s => new VariableSet { Id = s.Id, Index = s.Index }),
Data = new List<VariableResultItem>(),
});
var doc = new XmlDocument();
doc.LoadXml($"<variables>\n{string.Join("\n", lines)}\n</variables>");
var mainNode = doc.ChildNodes.Item(0);
if (mainNode == null)
{
throw new Exception("Can not parse Cplex result xml file - no main variable node");
}
foreach (XmlNode node in mainNode.ChildNodes)
{
if (node.Attributes == null)
{
throw new Exception("Can not parse Cplex result xml file - variable child node does not contain any attributes with informations");
}
var location = node.Attributes["name"].Value;
var value = decimal.Parse(node.Attributes["value"].Value, NumberStyles.Float, new NumberFormatInfo {NumberDecimalSeparator = "."});
var name = location.Split('(').First();
var coordinates = location.Split('(').Last().TrimEnd(')').Split(',');
variableResults[name].Data.Add(new VariableResultItem
{
C = coordinates,
V = value,
});
}
return variableResults.Values;
}
