/// <summary>
/// Initialize a new instance of <see cref="SeoSiteMapBuilderService"/>.
/// </summary>
public SeoSiteMapBuilderService()
{
this._rooturl = new SeoUrlInfo("_ROOT_");
this._keyIndex = new Dictionary <string, SeoUrlInfo>();
this._childurls = new Dictionary <string, List <SeoUrlInfo> >();
this._urlPreferredOrder = new Dictionary <string, int>();
this._childurls.Add(this._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)
{
this.SafeAddurl(url);
if (!this._childurls.ContainsKey(parent.Key))
{
this._childurls.Add(parent.Key, new List <SeoUrlInfo>());
}
this.AddurlWithOrder(parent.Key, url, preferredDisplayOrder);
}
private void SafeAddurl(SeoUrlInfo url)
{
Guard.IsNotNull(url, "url");
if (this._keyIndex.ContainsKey(url.Key))
{
throw new Exception("");
}
this._keyIndex.Add(url.Key, url);
}
private void AddChildurls(XmlWriter writer, SeoUrlInfo parent, ReadOnlyCollection <SeoUrlInfo> children)
{
if (children.Count > 0)
{
foreach (SeoUrlInfo info in children)
{
WriteSiteMapurlEntry(writer, info);
this.AddChildurls(writer, info, this.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)
{
this._urlPreferredOrder.Add(url.Key, preferredDisplayOrder);
for (int i = 0; i < this._childurls[parentKey].Count; i++)
{
string key = this._childurls[parentKey][i].Key;
if (this._urlPreferredOrder[key] > preferredDisplayOrder)
{
this._childurls[parentKey].Insert(i, url);
return;
}
}
this._childurls[parentKey].Add(url);
}
public string SeoXml()
{
// instantiate the XML Text Writer for writing the SiteMap document
using (StringWriter stringWriter = new StringWriter())
{
using (XmlTextWriter writer = new XmlTextWriter(stringWriter))
{
// write out the header
// start off the site map
writer.WriteProcessingInstruction("xml", "version=\"1.0\" encoding=\"UTF-8\"");
writer.WriteStartElement("urlset");
writer.WriteAttributeString("xmlns", "http://www.sitemaps.org/schemas/sitemap/0.9");
writer.WriteAttributeString("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
writer.WriteAttributeString("xsi:schemaLocation", "http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd");
SeoUrlInfo rooturl = this.RootUrl;
this.AddChildurls(writer, rooturl, this.GetChildren(rooturl.Key));
// write the footer and close.
writer.WriteEndElement();
return(stringWriter.ToString());
}
}
}
/// <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)
{
this.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)
{
this.SafeAddurl(url);
this.AddurlWithOrder(this.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)
{
this.AddUrl(url, int.MaxValue);
// this._childurls[Rooturl.Key].Add(url);
}
