/// <summary>
/// Initialize a new instance of <see cref="SeoSiteMapBuilderService"/>.
/// </summary>
public SeoSiteMapBuilderService()
{
_rooturl = new SeoUrlInfo("_ROOT_");
_keyIndex = new Dictionary<string, SeoUrlInfo>();
_childurls = new Dictionary<string, List<SeoUrlInfo>>();
_urlPreferredOrder = new Dictionary<string, int>();
_childurls.Add(_rooturl.Key, new List<SeoUrlInfo>());
}
/// <summary>
/// Adds a url as a child of another url, and sets the order with which to display the url.
/// </summary>
/// <param name="url">The url to add.</param>
/// <param name="parent">The url under which to add the new url.</param>
/// <param name="preferredDisplayOrder">The url display order.</param>
public void AddUrl(SeoUrlInfo url, SeoUrlInfo parent, int preferredDisplayOrder)
{
SafeAddurl(url);
if (!_childurls.ContainsKey(parent.Key))
{
_childurls.Add(parent.Key, new List<SeoUrlInfo>());
}
AddurlWithOrder(parent.Key, url, preferredDisplayOrder);
}
/// <summary>
/// Adds a url as a child of another url.
/// </summary>
/// <param name="url">The url to add.</param>
/// <param name="parent">The url under which to add the new url.</param>
public void AddUrl(SeoUrlInfo url, SeoUrlInfo parent)
{
AddUrl(url, parent, int.MaxValue);
}
/// <summary>
/// Adds a url as a child of the root url and sets the order with which the url should be displayed.
/// </summary>
/// <param name="url">The url to add.</param>
/// <param name="preferredDisplayOrder">The url display order.</param>
public void AddUrl(SeoUrlInfo url, int preferredDisplayOrder)
{
SafeAddurl(url);
AddurlWithOrder(RootUrl.Key, url, preferredDisplayOrder);
}
/// <summary>
/// Adds a url as child of the root url.
/// </summary>
/// <param name="url">The url to add.</param>
public void AddUrl(SeoUrlInfo url)
{
AddUrl(url, int.MaxValue);
//_childurls[Rooturl.Key].Add(url);
}
private void AddChildurls(XmlWriter writer, SeoUrlInfo parent, ReadOnlyCollection<SeoUrlInfo> children)
{
if (children.Count > 0)
{
foreach (var info in children)
{
WriteSiteMapurlEntry(writer, info);
AddChildurls(writer, info, GetChildren(info.Key));
}
}
}
internal static void WriteSiteMapurlEntry(XmlWriter writer, SeoUrlInfo url)
{
writer.WriteStartElement("url");
byte[] locBytes;
locBytes = Encoding.UTF8.GetBytes(url.Url);
writer.WriteElementString("loc", Encoding.UTF8.GetString(locBytes));
writer.WriteElementString("lastmod", FormatISODate(DateTime.Today));
writer.WriteElementString("changefreq", url.ChangeFrequency);
writer.WriteElementString("priority", url.Priority);
writer.WriteEndElement();
}
private void AddurlWithOrder(string parentKey, SeoUrlInfo url, int preferredDisplayOrder)
{
_urlPreferredOrder.Add(url.Key, preferredDisplayOrder);
for (int i = 0; i < _childurls[parentKey].Count; i++)
{
string key = _childurls[parentKey][i].Key;
if (_urlPreferredOrder[key] > preferredDisplayOrder)
{
_childurls[parentKey].Insert(i, url);
return;
}
}
_childurls[parentKey].Add(url);
}
private void SafeAddurl(SeoUrlInfo url)
{
Guard.IsNotNull(url, "url");
if (_keyIndex.ContainsKey(url.Key))
{
throw new Exception("");
}
_keyIndex.Add(url.Key, url);
}