/// <summary>
/// This code is just to show how it's used.
/// If run it will throw exceptions.
/// </summary>
public void Test()
{
XPathNavigator document = new XPathDocument(String.Empty).CreateNavigator();
XPathNodeIterator it = XPathCache.Select("/customer/order/item", document);
it = XPathCache.Select("/customer/order[id=$id]/item", document,
new XPathVariable("id", "23"));
string[] ids = null;
foreach (string id in ids)
{
it = XPathCache.Select("/customer/order[id=$id]/item", document,
new XPathVariable("id", id));
}
XmlNamespaceManager mgr = new XmlNamespaceManager(document.NameTable);
mgr.AddNamespace("po", "example-po");
it = XPathCache.Select("/po:customer[id=$id]", document, mgr,
new XPathVariable("id", "0736"));
XmlDocument doc = new XmlDocument();
XmlNodeList list = XPathCache.SelectNodes("/customer", doc);
}
public static IEnumerable <XmlElement> ElementsByXPath(this XmlNode node, string xPath)
{
try
{
return(XPathCache.SelectNodes(xPath, node).OfType <XmlElement>());
}
catch (NullReferenceException)
{
return(node.SelectNodes(xPath).OfType <XmlElement>());
}
}
public string CallAction(string action, string input, IProgressCallback progressReporter)
{
XmlNode fault;
XmlDocument outputDoc = null;
var inputDoc = new XmlDocument();
inputDoc.LoadXml(input);
if (_userInfo == null)
{
_userInfo = _inn.applyAML(string.Format("<AML><Item type='User' action='get' select='default_vault' expand='1'><id>{0}</id><Relationships><Item type='ReadPriority' action='get' select='priority, related_id' expand='1' orderBy='priority'/></Relationships></Item></AML>", _inn.getUserID()));
}
if (action == "ApplyItem" || action == "ApplyAML")
{
var fileNodes = XPathCache.SelectNodes("descendant-or-self::Item[@type='File' and (@action='add' or @action='update' or @action='create') and actual_filename]", inputDoc.DocumentElement);
XmlNode locatedNode;
if (fileNodes.Count > 0)
{
Item fileItem = _inn.newItem();
foreach (var fileNode in fileNodes.OfType <XmlElement>())
{
if (string.IsNullOrEmpty(fileNode.Attribute("id")))
{
fileNode.Attr("id", _inn.getNewID());
}
fileNode.Elem("checkedout_path", Path.GetDirectoryName(fileNode.Element("actual_filename", "")));
fileNode.Elem("filename", Path.GetFileName(fileNode.Element("actual_filename", "")));
locatedNode = XPathCache.SelectSingleNode("Relationships/Item[@type='Located']/related_id", fileNode);
if (locatedNode == null)
{
fileItem.dom = inputDoc;
fileItem.node = (XmlElement)fileNode;
fileItem.nodeList = null;
fileItem.attachPhysicalFile(fileNode.Element("actual_filename", ""), _userInfo.getProperty("default_vault"));
}
}
var firstItem = XPathCache.SelectSingleNode("//Item[1]", inputDoc.DocumentElement);
IList <XmlElement> items;
if (firstItem.ParentNode == null)
{
items = new XmlElement[] { (XmlElement)firstItem };
}
else
{
items = firstItem.Parent().Elements("Item").ToList();
}
Item result;
XmlElement resultNode = null;
for (var i = 0; i < items.Count; i++)
{
fileItem.dom = items[i].OwnerDocument;
fileItem.node = items[i];
fileItem.nodeList = null;
result = fileItem.apply();
fault = XPathCache.SelectSingleNode(faultXPath, result.dom.DocumentElement);
if (fault != null)
{
fault.AppendChild(result.dom.CreateElement("original_query")).InnerText = input;
return(result.dom.DocumentElement.OuterXml);
}
else if (result.isError())
{
throw new InvalidOperationException();
}
if (outputDoc == null)
{
outputDoc = result.dom;
resultNode = XPathCache.SelectSingleNode("//Item[1]", outputDoc.DocumentElement).Parent() as XmlElement;
}
else
{
resultNode.AppendChild(outputDoc.ImportNode(result.node, true));
}
if (progressReporter != null)
{
progressReporter.ReportProgress(i + 1, items.Count);
}
}
return(outputDoc.OuterXml);
}
}
outputDoc = new XmlDocument();
outputDoc.Elem("Empty");
_inn.getConnection().CallAction(action, inputDoc, outputDoc);
fault = XPathCache.SelectSingleNode(faultXPath, outputDoc.DocumentElement);
if (fault != null)
{
fault.AppendChild(outputDoc.CreateElement("original_query")).InnerText = input;
}
return(outputDoc.DocumentElement.OuterXml);
}
public static IEnumerable <XmlNode> XPath(this XmlNode node, string xPath, params object[] vars)
{
return(XPathCache.SelectNodes(xPath, node,
vars.Select((v, i) => new XPathVariable("p" + i.ToString(), v)).ToArray())
.OfType <XmlNode>());
}
public static IEnumerable <XmlNode> XPath(this XmlNode node, string xPath)
{
return(XPathCache.SelectNodes(xPath, node).OfType <XmlNode>());
}