private ValueDefinition ParseValue(XmlElement element)
{
var definition = new ValueDefinition();
if (element.HasAttribute(TYPE_ATTR))
{
definition.Type = element.GetAttribute(TYPE_ATTR);
if (string.IsNullOrWhiteSpace(definition.Type))
{
throw new ConfigurationException("Attribute 'type' is required.", element.OuterXml);
}
}
definition.Value = element.InnerText;
definition.Validate();
return(definition);
}
private void ParseEntry(XmlElement element, out DefinitionBase keyDefinition, out DefinitionBase valueDefinition)
{
if (element.HasAttribute(KEY_ATTR) && element.HasAttribute(KEY_REF_ATTR))
{
throw new ConfigurationException("Attribute 'key' and 'key-ref' cannot be assigned at the same time.", element.OuterXml);
}
if (element.HasAttribute(VALUE_ATTR) && element.HasAttribute(VALUE_REF_ATTR))
{
throw new ConfigurationException("Attribute 'value' and 'value-ref' cannot be assigned at the same time.", element.OuterXml);
}
if (element.HasAttribute(VALUE_ATTR) && element.HasChildNodes)
{
throw new ConfigurationException("Attribute 'value' and child node cannot be assigned at the same time.", element.OuterXml);
}
if (element.HasAttribute(VALUE_REF_ATTR) && element.HasChildNodes)
{
throw new ConfigurationException("Attribute 'value-ref' and child node cannot be assigned at the same time.", element.OuterXml);
}
if (element.HasChildNodes && element.ChildNodes.Count > 1)
{
throw new ConfigurationException("Only one child node is allowed.", element.OuterXml);
}
if (element.HasAttribute(KEY_ATTR))
{
keyDefinition = new ValueDefinition()
{
Value = element.GetAttribute(KEY_ATTR)
};
keyDefinition.Validate();
}
else if (element.HasAttribute(KEY_REF_ATTR))
{
var objectId = element.GetAttribute(KEY_REF_ATTR);
if (string.IsNullOrWhiteSpace(objectId))
{
throw new ConfigurationException("Attribute 'key-ref' is required.", element.OuterXml);
}
keyDefinition = FindReferenceObject(objectId);
}
else
{
throw new ConfigurationException("Attribute 'key' and 'key-ref' cannot be empty at the same time.", element.OuterXml);
}
if (element.HasAttribute(VALUE_ATTR))
{
valueDefinition = new ValueDefinition()
{
Value = element.GetAttribute(VALUE_ATTR)
};
valueDefinition.Validate();
}
else if (element.HasAttribute(VALUE_REF_ATTR))
{
var objectId = element.GetAttribute(VALUE_REF_ATTR);
if (string.IsNullOrWhiteSpace(objectId))
{
throw new ConfigurationException("Attribute 'value-ref' is required.", element.OuterXml);
}
valueDefinition = FindReferenceObject(objectId);
}
else if (element.HasChildNodes)
{
valueDefinition = ParseChildNode((XmlElement)element.FirstChild);
}
else
{
valueDefinition = ValueDefinition.NULL;
}
}