public TargetInfo GetTargetInfo (XPathNavigator linkNode, CustomContext context) {
// compute the metadata file name to open
XPathExpression localFileExpression = fileExpression.Clone();
localFileExpression.SetContext(context);
string file = linkNode.Evaluate(localFileExpression).ToString();
if (String.IsNullOrEmpty(file)) return (null);
// load the metadata file
XPathDocument metadataDocument = GetDocument(file);
if (metadataDocument == null) return (null);
// querry the metadata file for the target url and link text
XPathNavigator metadataNode = metadataDocument.CreateNavigator();
XPathExpression localUrlExpression = urlExpression.Clone();
localUrlExpression.SetContext(context);
string url = metadataNode.Evaluate(localUrlExpression).ToString();
XPathExpression localTextExpression = textExpression.Clone();
localTextExpression.SetContext(context);
string text = metadataNode.Evaluate(localTextExpression).ToString();
// return this information
TargetInfo info = new TargetInfo(url, text, type);
return (info);
}
public TargetInfo GetTargetInfo (string file) {
XPathDocument document = GetDocument(file);
if (document == null) {
return(null);
} else {
XPathNavigator context = document.CreateNavigator();
string url = context.Evaluate(urlExpression).ToString();
string text = context.Evaluate(textExpression).ToString();
TargetInfo info = new TargetInfo(url, text, type);
return(info);
}
}
