/// <summary>Creates new network attribute parameters</summary>
private static void AddNetworkParameters(NetworkAttributeInfo nai, IEvaluatedNetworkAttribute netAttr)
{
// Create parameters
if ((nai.Parameters != null) && (nai.Parameters.Count > 0))
{
IArray naParams = new ArrayClass();
foreach (ParameterInfo paramInfo in nai.Parameters)
{
INetworkAttributeParameter nap = new NetworkAttributeParameterClass();
nap.Name = paramInfo.Name;
if (paramInfo.DefaultValue is double)
{
nap.VarType = (int)VarEnum.VT_R8;
}
else if (paramInfo.DefaultValue is bool)
{
nap.VarType = (int)VarEnum.VT_BOOL;
}
else if (paramInfo.DefaultValue is string)
{
nap.VarType = (int)VarEnum.VT_BSTR;
}
nap.DefaultValue = paramInfo.DefaultValue;
naParams.Add(nap);
}
((INetworkAttribute3)netAttr).Parameters = naParams;
}
}
/// <summary>Creates a single NetworkAttributeInfo for the given network_attribute element</summary>
private NetworkAttributeInfo CreateNetworkAttributeInfo(XElement x)
{
NetworkAttributeInfo netAttrInfo = new NetworkAttributeInfo();
netAttrInfo.Name = x.Element("name").Value;
netAttrInfo.UsageType = GetNetworkAttributeUsageType(x);
XElement xType = null;
switch (netAttrInfo.UsageType)
{
case esriNetworkAttributeUsageType.esriNAUTCost:
xType = x.Element("cost");
netAttrInfo.DataType = GetNetworkAttributeDataType(xType);
netAttrInfo.UseAsDefault = bool.Parse(xType.Attribute("useAsDefault").Value);
netAttrInfo.Units = GetNetworkAttributeUnits(xType);
netAttrInfo.Parameters = GetNetworkAttributeParameters(xType).ToList();
netAttrInfo.Evaluators = GetNetworkAttributeEvaluators(xType).ToList();
break;
case esriNetworkAttributeUsageType.esriNAUTHierarchy:
xType = x.Element("hierachy");
netAttrInfo.DataType = esriNetworkAttributeDataType.esriNADTInteger;
netAttrInfo.UseAsDefault = bool.Parse(xType.Attribute("useAsDefault").Value);
netAttrInfo.Units = esriNetworkAttributeUnits.esriNAUUnknown;
netAttrInfo.Parameters = GetNetworkAttributeParameters(xType).ToList();
netAttrInfo.Evaluators = GetNetworkAttributeEvaluators(xType).ToList();
break;
case esriNetworkAttributeUsageType.esriNAUTRestriction:
xType = x.Element("restriction");
netAttrInfo.DataType = esriNetworkAttributeDataType.esriNADTBoolean;
netAttrInfo.UseAsDefault = bool.Parse(xType.Attribute("useAsDefault").Value);
netAttrInfo.Units = esriNetworkAttributeUnits.esriNAUUnknown;
netAttrInfo.Parameters = GetNetworkAttributeParameters(xType).ToList();
netAttrInfo.Evaluators = GetNetworkAttributeEvaluators(xType).ToList();
break;
case esriNetworkAttributeUsageType.esriNAUTDescriptor:
xType = x.Element("descriptor");
netAttrInfo.DataType = GetNetworkAttributeDataType(xType);
netAttrInfo.UseAsDefault = false;
netAttrInfo.Units = esriNetworkAttributeUnits.esriNAUUnknown;
netAttrInfo.Parameters = GetNetworkAttributeParameters(xType).ToList();
netAttrInfo.Evaluators = GetNetworkAttributeEvaluators(xType).ToList();
break;
}
netAttrInfo.DefaultValue = GetNetworkAttributeDefaultValue(netAttrInfo.DataType, x.Element("default_value").Value);
return(netAttrInfo);
}
/// <summary>Adds new Network Attribute Evaluators</summary>
private void AddEvaluators(NetworkAttributeInfo nai, IEvaluatedNetworkAttribute netAttr)
{
foreach (EvaluatorInfo eval in nai.Evaluators)
{
INetworkEvaluator evaluator = null;
if (eval.EvaluatorType == eEvaluatorType.Constant)
{
evaluator = new NetworkConstantEvaluatorClass();
if (netAttr.DataType == esriNetworkAttributeDataType.esriNADTBoolean)
{
((INetworkConstantEvaluator)evaluator).ConstantValue = eval.Expression.Equals(bool.TrueString, StringComparison.CurrentCultureIgnoreCase);
}
else if (netAttr.DataType == esriNetworkAttributeDataType.esriNADTDouble)
{
((INetworkConstantEvaluator)evaluator).ConstantValue = Convert.ToDouble(eval.Expression);
}
else if (netAttr.DataType == esriNetworkAttributeDataType.esriNADTFloat)
{
((INetworkConstantEvaluator)evaluator).ConstantValue = Convert.ToSingle(eval.Expression);
}
else if (netAttr.DataType == esriNetworkAttributeDataType.esriNADTInteger)
{
((INetworkConstantEvaluator)evaluator).ConstantValue = Convert.ToInt32(eval.Expression);
}
}
else if (eval.EvaluatorType == eEvaluatorType.Script)
{
evaluator = new NetworkScriptEvaluatorClass();
#if ARCGIS_10_0 // Handle Python script language added in ArcGIS 10.1
if (eval.ScriptLanguage != "VBScript")
{
throw new ApplicationException(RESMGR.GetString("GPTools_OSMGPCreateNetworkDataset_invalidScriptLanguage"));
}
INetworkScriptEvaluator scriptEvaluator = (INetworkScriptEvaluator)evaluator;
scriptEvaluator.SetExpression(eval.Expression, eval.Prelogic);
#else
INetworkScriptEvaluator2 scriptEvaluator = (INetworkScriptEvaluator2)evaluator;
scriptEvaluator.SetLanguage(eval.ScriptLanguage);
scriptEvaluator.SetExpression(eval.Expression, eval.Prelogic);
#endif
}
else if (eval.EvaluatorType == eEvaluatorType.Field)
{
evaluator = new NetworkFieldEvaluatorClass();
#if ARCGIS_10_0 // Handle Python script language added in ArcGIS 10.1
if (eval.ScriptLanguage != "VBScript")
{
throw new ApplicationException(RESMGR.GetString("GPTools_OSMGPCreateNetworkDataset_invalidScriptLanguage"));
}
INetworkFieldEvaluator fieldEvaluator = (INetworkFieldEvaluator)evaluator;
fieldEvaluator.SetExpression(eval.Expression, eval.Prelogic);
#else
INetworkFieldEvaluator2 fieldEvaluator = (INetworkFieldEvaluator2)evaluator;
fieldEvaluator.SetLanguage(eval.ScriptLanguage);
fieldEvaluator.SetExpression(eval.Expression, eval.Prelogic);
#endif
}
INetworkSource source = EnumerateNetworkSources()
.FirstOrDefault(ns => ns.Name.Equals(GetFullClassName(eval.Source), StringComparison.CurrentCultureIgnoreCase));
if (source != null)
{
esriNetworkEdgeDirection direction = eval.Direction;
if (!(source is IEdgeFeatureSource))
{
direction = esriNetworkEdgeDirection.esriNEDNone;
}
netAttr.set_Evaluator(source, direction, evaluator);
}
}
}