private SiteMapNode GetNodeFromSiteMapFile(XmlNode xmlNode, VirtualPath siteMapFile)
{
SiteMapNode node = null;
// For external sitemap files, its secuity setting is inherited from parent provider
bool secuityTrimmingEnabled = SecurityTrimmingEnabled;
HandlerBase.GetAndRemoveBooleanAttribute(xmlNode, _securityTrimmingEnabledAttrName, ref secuityTrimmingEnabled);
// No other attributes or non-comment nodes are allowed on a siteMapFile node
HandlerBase.CheckForUnrecognizedAttributes(xmlNode);
HandlerBase.CheckForNonCommentChildNodes(xmlNode);
XmlSiteMapProvider childProvider = new XmlSiteMapProvider();
// siteMapFile was relative to the sitemap file where this xmlnode is defined, make it an application path.
siteMapFile = _normalizedVirtualPath.Parent.Combine(siteMapFile);
childProvider.ParentProvider = this;
childProvider.Initialize(siteMapFile, secuityTrimmingEnabled);
childProvider.BuildSiteMap();
node = childProvider._siteMapNode;
ChildProviderTable.Add(childProvider, node);
_childProviderList = null;
return(node);
}
protected override void Clear()
{
lock (_lock) {
ChildProviderTable.Clear();
_siteMapNode = null;
_childProviderList = null;
base.Clear();
}
}
private SiteMapNode GetNodeFromProvider(string providerName)
{
SiteMapProvider provider = GetProviderFromName(providerName);
SiteMapNode node = null;
// Check infinite recursive sitemap files
if (provider is XmlSiteMapProvider)
{
XmlSiteMapProvider xmlProvider = (XmlSiteMapProvider)provider;
StringCollection parentSiteMapFileCollection = new StringCollection();
if (_parentSiteMapFileCollection != null)
{
foreach (string filename in _parentSiteMapFileCollection)
{
parentSiteMapFileCollection.Add(filename);
}
}
// Make sure the provider is initialized before adding to the collection.
xmlProvider.BuildSiteMap();
parentSiteMapFileCollection.Add(_normalizedVirtualPath.VirtualPathString);
if (parentSiteMapFileCollection.Contains(VirtualPath.GetVirtualPathString(xmlProvider._normalizedVirtualPath)))
{
throw new InvalidOperationException(SR.GetString(SR.XmlSiteMapProvider_FileName_already_in_use, xmlProvider._virtualPath));
}
xmlProvider._parentSiteMapFileCollection = parentSiteMapFileCollection;
}
node = provider.GetRootNodeCore();
if (node == null)
{
throw new InvalidOperationException(
SR.GetString(SR.XmlSiteMapProvider_invalid_GetRootNodeCore, ((ProviderBase)provider).Name));
}
ChildProviderTable.Add(provider, node);
_childProviderList = null;
provider.ParentProvider = this;
return(node);
}
protected virtual void RemoveProvider(string providerName)
{
if (providerName == null)
{
throw new ArgumentNullException("providerName");
}
lock (_lock) {
SiteMapProvider provider = GetProviderFromName(providerName);
SiteMapNode rootNode = (SiteMapNode)ChildProviderTable[provider];
if (rootNode == null)
{
throw new InvalidOperationException(SR.GetString(SR.XmlSiteMapProvider_cannot_find_provider, provider.Name, this.Name));
}
provider.ParentProvider = null;
ChildProviderTable.Remove(provider);
_childProviderList = null;
base.RemoveNode(rootNode);
}
}
