private ParameterInfo GetParameterInfo(XmlNode parameter,
String category, String name, String field, Type cSharpType, ParamConstraint paramConstraint, eParamParentType parent)
{
XmlAttribute valueAttr, descriptionAttr;
String valueAttrValue, descriptionAttrValue = "", combined;
String paramMin = null;
String paramMax = null;
descriptionAttr = parameter.Attributes[ConfigFileConstants.description];
if (descriptionAttr != null) // optional
{
descriptionAttrValue = descriptionAttr.Value;
}
combined = category + SchemaConstants.ParameterDelimiter + name;
if (field.Length > 0)
{
combined = combined + SchemaConstants.FieldLeftDelimeter + field + SchemaConstants.FieldRightDelimeter;
}
paramMin = null;
paramMax = null;
if (paramConstraint != null)
{
paramMin = paramConstraint.Range.Min;
paramMax = paramConstraint.Range.Max;
}
valueAttr = parameter.Attributes[ConfigFileConstants.Value];
if (valueAttr != null)
{
valueAttrValue = valueAttr.Value;
object oValidatedValue = this._ValidateValue(cSharpType, valueAttrValue, paramMin, paramMax);
if (oValidatedValue is Array)
{
// array - can't bulk insert, serialize
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream memoryStream = new MemoryStream();
formatter.Serialize(memoryStream, oValidatedValue);
byte[] arrayData = memoryStream.ToArray();
return new ParameterInfo(category, name, field, combined, parent, "", descriptionAttrValue, paramMin, paramMax, arrayData);
}
else
{
string sParamValToStore = (oValidatedValue == null) ? valueAttrValue : oValidatedValue.ToString();
return new ParameterInfo(category, name, field, combined, parent, sParamValToStore, descriptionAttrValue, paramMin, paramMax);
}
}
else
{
return new ParameterInfo(category, name, field, combined, parent, "", descriptionAttrValue, paramMin, paramMax);
}
}
// Get a constraint for a component or link
public ParamConstraint GetConstraint(String category, String name, String childField, eParamParentType componentOrLink, String componentType,
String linkType, String fromType, String toType)
{
XPathNavigator targetParameter = null; // get the parameter node
if (componentOrLink == eParamParentType.Component) // (XML is in different places in config file)
{
targetParameter = this.m_model.GetParameter(componentType, category, name, childField);
}
else if (componentOrLink == eParamParentType.Link)
{
targetParameter = this.m_model.GetParameter(linkType, fromType, toType, category, name, childField);
}
if (targetParameter != null) // populate constraints object if any are provided for parameter
{
XPathNodeIterator constraints = targetParameter.Select("Constraints/Constraint");
if (constraints.Count > 0)
{
ParamConstraint paramConstraint = new ParamConstraint();
foreach (XPathNavigator constraint in constraints)
{
string sConstraintName = constraint.GetAttribute(ConfigFileConstants.constraintName, constraint.NamespaceURI);
string sConstraintValue = constraint.GetAttribute(ConfigFileConstants.constraintValue, constraint.NamespaceURI);
switch (sConstraintName.ToLower())
{
case ConfigFileConstants.minConstraint: // "min"
paramConstraint.Range.Min = sConstraintValue;
break;
case ConfigFileConstants.maxConstraint: // "max"
paramConstraint.Range.Max = sConstraintValue;
break;
}
}
return paramConstraint;
}
}
return null;
}
