/// <summary>
/// Writes the <saml:ProxyRestriction> element.
/// </summary>
/// <param name="writer">A <see cref="XmlWriter"/> to serialize the <see cref="Saml2ProxyRestriction"/>.</param>
/// <param name="data">The <see cref="Saml2ProxyRestriction"/> to serialize.</param>
protected virtual void WriteProxyRestriction(XmlWriter writer, Saml2ProxyRestriction data)
{
if (null == writer)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("writer");
}
if (null == data)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("data");
}
writer.WriteStartElement(Saml2Constants.Elements.ProxyRestricton, Saml2Constants.Namespace);
// @Count - optional
if (null != data.Count)
{
writer.WriteAttributeString(Saml2Constants.Attributes.Count, XmlConvert.ToString(data.Count.Value));
}
// <Audience> - 0-OO
foreach (Uri uri in data.Audiences)
{
writer.WriteElementString(Saml2Constants.Elements.Audience, uri.AbsoluteUri);
}
writer.WriteEndElement();
}
/// <summary>
/// Reads the <saml:ProxyRestriction> element, or a <saml:Condition>
/// element that specifies an xsi:type of saml:ProxyRestrictionType.
/// </summary>
/// <remarks>
/// In the default implementation, the maximum value of the Count attribute
/// is limited to Int32.MaxValue.
/// </remarks>
/// <param name="reader">A <see cref="XmlReader"/> positioned at a <see cref="Saml2ProxyRestriction"/> element.</param>
/// <returns>An instance of <see cref="Saml2ProxyRestriction"/></returns>
protected virtual Saml2ProxyRestriction ReadProxyRestriction(XmlReader reader)
{
if (null == reader)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("reader");
}
// throw if wrong element
bool isConditionElement = false;
if (reader.IsStartElement(Saml2Constants.Elements.Condition, Saml2Constants.Namespace))
{
isConditionElement = true;
}
else if (!reader.IsStartElement(Saml2Constants.Elements.ProxyRestricton, Saml2Constants.Namespace))
{
reader.ReadStartElement(Saml2Constants.Elements.ProxyRestricton, Saml2Constants.Namespace);
}
try
{
Saml2ProxyRestriction proxyRestriction = new Saml2ProxyRestriction();
bool isEmpty = reader.IsEmptyElement;
// @attributes
string value;
// @xsi:type -- if we're a <Condition> element, this declaration must be present
XmlUtil.ValidateXsiType(reader, Saml2Constants.Types.ProxyRestrictionType, Saml2Constants.Namespace, isConditionElement);
// @Count - optional
value = reader.GetAttribute(Saml2Constants.Attributes.Count);
if (!string.IsNullOrEmpty(value))
{
proxyRestriction.Count = XmlConvert.ToInt32(value);
}
// content
reader.Read();
if (!isEmpty)
{
// <Audience> - 0-OO
while (reader.IsStartElement(Saml2Constants.Elements.Audience, Saml2Constants.Namespace))
{
proxyRestriction.Audiences.Add(ReadSimpleUriElement(reader));
}
reader.ReadEndElement();
}
return proxyRestriction;
}
catch (Exception e)
{
if (System.Runtime.Fx.IsFatal(e))
throw;
Exception wrapped = TryWrapReadException(reader, e);
if (null == wrapped)
{
throw;
}
else
{
throw wrapped;
}
}
}
