/// <summary>
/// Writes the condition.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="apply">The apply.</param>
protected virtual void WriteCondition(XmlWriter writer, XacmlExpression data)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.Condition, this.Version.NamespacePolicy);
this.WriteApplyType(writer, data.Property as XacmlApply); // TODO:
writer.WriteEndElement();
}
/// <summary>
/// Reads the rule.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns></returns>
/// <exception cref="System.Xml.XmlException">
/// Rule NotStartElement
/// or
/// RuleId IsNullOrEmpty
/// or
/// Effect IsNullEmpty
/// </exception>
/// <exception cref="XacmlSerializationException">Wrong XacmlEffectType value</exception>
protected virtual XacmlRule ReadRule(XmlReader reader)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (!reader.IsStartElement(XacmlConstants.ElementNames.Rule, this.Version.NamespacePolicy))
{
throw ThrowHelperXml(reader, "Rule NotStartElement");
}
var gaRuleId = reader.GetAttribute("RuleId");
if (string.IsNullOrEmpty(gaRuleId))
{
throw ThrowHelperXml(reader, "RuleId IsNullOrEmpty");
}
var gaEffect = reader.GetAttribute("Effect");
if (string.IsNullOrEmpty(gaEffect))
{
throw ThrowHelperXml(reader, "Effect IsNullEmpty");
}
XacmlEffectType effectType = XacmlEffectType.Deny;
if (string.Equals(gaEffect, "Deny", StringComparison.OrdinalIgnoreCase))
{
effectType = XacmlEffectType.Deny;
}
else if (string.Equals(gaEffect, "Permit", StringComparison.OrdinalIgnoreCase))
{
effectType = XacmlEffectType.Permit;
}
else
{
throw ThrowHelperXml(reader, "Wrong XacmlEffectType value");
}
reader.ReadStartElement(XacmlConstants.ElementNames.Rule, this.Version.NamespacePolicy);
string description = null;
if (reader.IsStartElement(XacmlConstants.ElementNames.Description, this.Version.NamespacePolicy))
{
description = reader.ReadElementContentAsString(XacmlConstants.ElementNames.Description, this.Version.NamespacePolicy);
}
XacmlTarget target = null;
if (reader.IsStartElement(XacmlConstants.ElementNames.Target, this.Version.NamespacePolicy))
{
target = this.ReadTarget(reader);
}
XacmlExpression condition = null;
if (reader.IsStartElement(XacmlConstants.ElementNames.Condition, this.Version.NamespacePolicy))
{
condition = this.ReadCondition(reader);
}
reader.ReadEndElement();
return(new XacmlRule(gaRuleId, effectType)
{
Description = description, Target = target, Condition = condition
});
}
