/// <summary>Adds a new model (as specified by the string argument) to the specified parent.</summary>
/// <param name="parent">The parent to add the model to</param>
/// <param name="st">The string representing the new model</param>
/// <returns>The newly created model.</returns>
public static IModel Add(string st, IModel parent)
{
// The strategy here is to try and add the string as if it was a APSIM Next Gen.
// string (json or xml). If that throws an exception then try adding it as if
// it was an APSIM 7.10 string (xml). If that doesn't work throw 'invalid format' exception.
List <Exception> creationExceptions;
IModel modelToAdd = null;
try
{
modelToAdd = FileFormat.ReadFromString <IModel>(st, out creationExceptions);
}
catch (Exception err)
{
if (err.Message.StartsWith("Unknown string encountered"))
{
throw;
}
}
if (modelToAdd == null)
{
// Try the string as if it was an APSIM 7.10 xml string.
var xmlDocument = new XmlDocument();
xmlDocument.LoadXml("<Simulation>" + st + "</Simulation>");
var importer = new Importer();
var rootNode = xmlDocument.DocumentElement as XmlNode;
var convertedNode = importer.AddComponent(rootNode.ChildNodes[0], ref rootNode);
rootNode.RemoveAll();
rootNode.AppendChild(convertedNode);
var newSimulationModel = FileFormat.ReadFromString <IModel>(rootNode.OuterXml, out creationExceptions);
if (newSimulationModel == null || newSimulationModel.Children.Count == 0)
{
throw new Exception("Cannot add model. Invalid model being added.");
}
modelToAdd = newSimulationModel.Children[0];
}
// Correctly parent all models.
modelToAdd = Add(modelToAdd, parent);
// Ensure the model name is valid.
EnsureNameIsUnique(modelToAdd);
// Call OnCreated
foreach (IModel model in modelToAdd.FindAllDescendants().ToList())
{
model.OnCreated();
}
return(modelToAdd);
}
