/// <summary>
/// Maps a list of simple values into a collection
/// </summary>
/// <typeparam name="T">Type of value to return</typeparam>
/// <param name="source">XPathProcessor to use</param>
/// <param name="collectionNode">Collection node name (may be null)</param>
/// <param name="nodeName">Node name to use</param>
/// <param name="func">Function to access the data from the XPathProcessor, e.g. x => x.ToInt(CurrentXPath)</param>
/// <returns>List of values</returns>
public static List <T> MapList <T>(this XPathProcessor source, string collectionNode, string nodeName, Func <XPathProcessor, T> func)
{
if (!string.IsNullOrEmpty(collectionNode))
{
source.Push(collectionNode);
}
var list = new List <T>();
var index = 1;
while (source.HasElement(nodeName, index: index))
{
source.Push(nodeName, index: index);
try
{
list.Add(func(source));
index++;
}
finally
{
source.Pop();
}
}
if (!string.IsNullOrEmpty(collectionNode))
{
source.Pop();
}
return(list);
}
/// <copydocfrom cref="IXmlMapper{T, D}.Map(T, string, string, bool)" />
public TDestination Map(XPathProcessor source, string nodeName, string xmlNamespace = "", bool outputDefault = false)
{
RegisterNamespace(source, NamespacePrefix, Namespace);
// Push both the node and the namespace - presumption that the namespace applies to the node
source.Push(nodeName, Namespace);
try
{
if (!source.CurrentNode())
{
return(null);
}
RegisterNamespace(source, XsiPrefix, XsiNamespace);
var xmlType = source.ToString("type", XsiPrefix, isAttribute: true);
TDestination destination;
// This mapper can handle it if there's no type specified or it's our type
if (string.IsNullOrEmpty(xmlType) || string.IsNullOrEmpty(XmlType))
{
destination = CreateAndMap(source);
}
else
{
var t = XmlTypeInfo(source, xmlType);
if (XmlTypeNamespace == t.Item1 && XmlType == t.Item2)
{
destination = CreateAndMap(source);
}
else
{
// Otherwise, pass off to the engine
// NB Use the current namespace for the node name, not the target mapper's
if (!nodeName.Contains(":"))
{
nodeName = string.Format("{0}:{1}", NamespacePrefix, nodeName);
}
try
{
destination = Engine.Map <XPathProcessor, TDestination>(source, nodeName, t.Item1, t.Item2);
}
catch (XmlTypeMappingException)
{
// try to map with our base engine
destination = this.CreateAndMap(source);
}
}
}
return(destination);
}
finally
{
// Make sure we unwind the stack in all cases
source.Pop();
}
}
protected TDestination Map(XPathProcessor source, string nodeName, string xmlNamespace, string xmlPrefix, int index)
{
RegisterNamespace(source, NamespacePrefix, Namespace);
// Namespace and node provide context, however the prefix if present overrides the node's actual namespace
source.Push(nodeName, Namespace, xmlPrefix, index);
try
{
if (!source.CurrentNode())
{
return(null);
}
var xmlType = string.Empty;
RegisterNamespace(source, XsiPrefix, XsiNamespace);
xmlType = source.ToString("type", XsiPrefix, isAttribute: true);
TDestination destination;
// This mapper can handle it if there's no type specified or it's our type or if it is the base mapper for an unknown type
if (string.IsNullOrEmpty(xmlType) || string.IsNullOrEmpty(XmlType))
{
destination = CreateAndMap(source);
}
else
{
var t = XmlTypeInfo(source, xmlType);
if (t.Item1 == XmlTypeNamespace && t.Item2 == XmlType)
{
// We're responsible
destination = CreateAndMap(source);
}
else
{
// Need a mapper for this xsi:type
try
{
destination = XsiMapper(source, nodeName, t.Item1, t.Item2, index);
}
catch (XmlTypeMappingException)
{
// if we don't get one try with this base one
destination = this.CreateAndMap(source);
}
}
}
return(destination);
}
finally
{
// Make sure we unwind the stack in all cases
source.Pop();
}
}
public virtual List <TDestination> MapList(XPathProcessor source, string collectionNode, string nodeName, string collectionNodeNamespacePrefix = "", string collectionItemNodeNamespacePrefix = "", bool outputDefault = false)
{
// Default namespace
this.RegisterNamespace(source, this.NamespacePrefix, this.Namespace);
string collNamespace;
var list = new List <TDestination>();
if (string.IsNullOrWhiteSpace(collectionNodeNamespacePrefix))
{
// It's the same as normal
collectionNodeNamespacePrefix = this.NamespacePrefix;
collNamespace = this.Namespace;
}
else
{
// Look it up.
collNamespace = source.LookupNamespace(collectionNodeNamespacePrefix);
if (string.IsNullOrWhiteSpace(collNamespace))
{
throw new MappingException(string.Format("No namespace registered for {0}", collectionNodeNamespacePrefix));
}
}
if (!string.IsNullOrEmpty(collectionNode))
{
source.Push(collectionNode, collNamespace, collectionNodeNamespacePrefix);
}
if (string.IsNullOrEmpty(nodeName))
{
nodeName = this.NodeName;
}
var index = 1;
TDestination item;
do
{
item = this.Map(source, nodeName, string.Empty, collectionItemNodeNamespacePrefix, index++);
if (item != null)
{
list.Add(item);
}
}while (item != null);
if (!string.IsNullOrEmpty(collectionNode))
{
source.Pop();
}
return(list);
}
/// <summary>
/// Map an entity for a particular xsi:type.
/// </summary>
/// <param name="source">Processor to use</param>
/// <param name="nodeName">Node name to use.</param>
/// <param name="xmlNamespace">XML namespace to use.</param>
/// <param name="xmlType">XML type to use</param>
/// <param name="index">Index to use.</param>
/// <returns>A new instance of the TDestination class mapped from the source.</returns>
private TDestination XsiMapper(XPathProcessor source, string nodeName, string xmlNamespace, string xmlType, int index)
{
// Unwind the current node position, we're about to do the same again.
source.Pop();
try
{
// NB Use the current namespace for the node name, not the target mapper's
var destination = this.Engine.Map <XPathProcessor, TDestination>(
source, nodeName, xmlNamespace, xmlType, this.NamespacePrefix, index);
return(destination);
}
finally
{
// Put it back where it was
source.Push(nodeName, xmlNamespace, this.NamespacePrefix, index);
}
}
