/// <summary>
/// Initializes a new instance of the <see cref="SitemapWriter"/> class using
/// the specified <see cref="XmlWriter"/> and site host URL.
/// </summary>
/// <param name="writer">The XmlWriter to write to.</param>
/// <param name="siteHostUrl">The site host appended to the beginning of non-rooted URLs.</param>
public SitemapWriter(XmlWriter writer, string siteHostUrl)
{
if (writer == null)
{
throw new ArgumentNullException("writer");
}
ParameterUtils.ValidateStringNotNullOrEmpty(siteHostUrl, "siteHostUrl");
if (siteHostUrl.IndexOf(':') == -1)
{
throw new ArgumentException("Invalid host url");
}
_writer = writer;
_siteHostUrl = siteHostUrl;
}