/// <summary>
/// Resolves the given value taken from an object definition according to its type
/// </summary>
/// <param name="value">the value to resolve</param>
/// <returns>the resolved value</returns>
protected virtual object ResolveValue(object value)
{
if (value is IObjectDefinition)
{
VisitObjectDefinition((IObjectDefinition)value);
}
else if (value is ObjectDefinitionHolder)
{
VisitObjectDefinition(((ObjectDefinitionHolder)value).ObjectDefinition);
}
else if (value is RuntimeObjectReference)
{
RuntimeObjectReference ror = (RuntimeObjectReference)value;
//name has to be of string type.
string newObjectName = ResolveStringValue(ror.ObjectName);
if (!newObjectName.Equals(ror.ObjectName))
{
return(new RuntimeObjectReference(newObjectName));
}
}
else if (value is ManagedList)
{
VisitManagedList((ManagedList)value);
}
else if (value is ManagedSet)
{
VisitManagedSet((ManagedSet)value);
}
else if (value is ManagedDictionary)
{
VisitManagedDictionary((ManagedDictionary)value);
}
else if (value is NameValueCollection)
{
VisitNameValueCollection((NameValueCollection)value);
}
else if (value is TypedStringValue)
{
TypedStringValue typedStringValue = (TypedStringValue)value;
String stringValue = typedStringValue.Value;
if (stringValue != null)
{
String visitedString = ResolveStringValue(stringValue);
typedStringValue.Value = visitedString;
}
}
else if (value is string)
{
return(ResolveStringValue((string)value));
}
else if (value is ExpressionHolder)
{
ExpressionHolder holder = (ExpressionHolder)value;
string newExpressionString = ResolveStringValue(holder.ExpressionString);
return(new ExpressionHolder(newExpressionString));
}
return(value);
}
/// <summary>
/// Gets a dictionary definition.
/// </summary>
/// <param name="mapEle">The element describing the dictionary definition.</param>
/// <param name="name">The name of the object (definition) associated with the dictionary definition.</param>
/// <param name="parserContext">The namespace-aware parser.</param>
/// <returns>The dictionary definition.</returns>
protected IDictionary ParseDictionaryElement(XmlElement mapEle, string name, ParserContext parserContext)
{
ManagedDictionary dictionary = new ManagedDictionary();
string keyTypeName = GetAttributeValue(mapEle, "key-type");
string valueTypeName = GetAttributeValue(mapEle, "value-type");
if (StringUtils.HasText(keyTypeName))
{
dictionary.KeyTypeName = keyTypeName;
}
if (StringUtils.HasText(valueTypeName))
{
dictionary.ValueTypeName = valueTypeName;
}
dictionary.MergeEnabled = ParseMergeAttribute(mapEle, parserContext.ParserHelper);
XmlNodeList entryElements = SelectNodes(mapEle, ObjectDefinitionConstants.EntryElement);
foreach (XmlElement entryEle in entryElements)
{
#region Key
object key = null;
XmlAttribute keyAtt = entryEle.Attributes[ObjectDefinitionConstants.KeyAttribute];
if (keyAtt != null)
{
key = keyAtt.Value;
}
else
{
// ok, we're not using the 'key' attribute; lets check for the ref shortcut...
XmlAttribute keyRefAtt = entryEle.Attributes[ObjectDefinitionConstants.DictionaryKeyRefShortcutAttribute];
if (keyRefAtt != null)
{
key = new RuntimeObjectReference(keyRefAtt.Value);
}
else
{
// so check for the 'key' element...
XmlNode keyNode = SelectSingleNode(entryEle, ObjectDefinitionConstants.KeyElement);
if (keyNode == null)
{
throw new ObjectDefinitionStoreException(
parserContext.ReaderContext.Resource, name,
string.Format("One of either the '{0}' element, or the the '{1}' or '{2}' attributes " +
"is required for the <{3}/> element.",
ObjectDefinitionConstants.KeyElement,
ObjectDefinitionConstants.KeyAttribute,
ObjectDefinitionConstants.DictionaryKeyRefShortcutAttribute,
ObjectDefinitionConstants.EntryElement));
}
XmlElement keyElement = (XmlElement)keyNode;
XmlNodeList keyNodes = keyElement.GetElementsByTagName("*");
if (keyNodes == null || keyNodes.Count == 0)
{
throw new ObjectDefinitionStoreException(
parserContext.ReaderContext.Resource, name,
string.Format("Malformed <{0}/> element... the value of the key must be " +
"specified as a child value-style element.",
ObjectDefinitionConstants.KeyElement));
}
key = ParsePropertySubElement((XmlElement)keyNodes.Item(0), name, parserContext);
}
}
#endregion
#region Value
XmlAttribute inlineValueAtt = entryEle.Attributes[ObjectDefinitionConstants.ValueAttribute];
if (inlineValueAtt != null)
{
// ok, we're using the value attribute shortcut...
dictionary[key] = inlineValueAtt.Value;
}
else if (entryEle.Attributes[ObjectDefinitionConstants.DictionaryValueRefShortcutAttribute] != null)
{
// ok, we're using the value-ref attribute shortcut...
XmlAttribute inlineValueRefAtt = entryEle.Attributes[ObjectDefinitionConstants.DictionaryValueRefShortcutAttribute];
RuntimeObjectReference ror = new RuntimeObjectReference(inlineValueRefAtt.Value);
dictionary[key] = ror;
}
else if (entryEle.Attributes[ObjectDefinitionConstants.ExpressionAttribute] != null)
{
// ok, we're using the expression attribute shortcut...
XmlAttribute inlineExpressionAtt = entryEle.Attributes[ObjectDefinitionConstants.ExpressionAttribute];
ExpressionHolder expHolder = new ExpressionHolder(inlineExpressionAtt.Value);
dictionary[key] = expHolder;
}
else
{
XmlNode keyNode = SelectSingleNode(entryEle, ObjectDefinitionConstants.KeyElement);
if (keyNode != null)
{
entryEle.RemoveChild(keyNode);
}
// ok, we're using the original full-on value element...
XmlNodeList valueElements = entryEle.GetElementsByTagName("*");
if (valueElements == null || valueElements.Count == 0)
{
throw new ObjectDefinitionStoreException(
parserContext.ReaderContext.Resource, name,
string.Format("One of either the '{0}' or '{1}' attributes, or a value-style element " +
"is required for the <{2}/> element.",
ObjectDefinitionConstants.ValueAttribute, ObjectDefinitionConstants.DictionaryValueRefShortcutAttribute, ObjectDefinitionConstants.EntryElement));
}
dictionary[key] = ParsePropertySubElement((XmlElement)valueElements.Item(0), name, parserContext);
}
#endregion
}
return dictionary;
}
private object ParseExpressionElement(XmlElement element, string name, ParserContext parserContext)
{
string expression = GetAttributeValue(element, ObjectDefinitionConstants.ValueAttribute);
ExpressionHolder holder = new ExpressionHolder(expression);
holder.Properties = ParsePropertyElements(name, element, parserContext);
return holder;
}