/// <summary>
/// Initializes a new instance of the <see cref="XacmlMatch"/> class.
/// </summary>
/// <param name="matchId">The match identifier.</param>
/// <param name="attributeValue">The attribute value.</param>
/// <param name="attributeSelector">The attribute selector.</param>
public XacmlMatch(Uri matchId, XacmlAttributeValue attributeValue, XacmlAttributeSelector attributeSelector) {
Contract.Requires<ArgumentNullException>(matchId != null);
Contract.Requires<ArgumentNullException>(attributeValue != null);
Contract.Requires<ArgumentNullException>(attributeSelector != null);
this.matchId = matchId;
this.attributeValue = attributeValue;
this.attributeSelector = attributeSelector;
}
/// <summary>
/// Initializes a new instance of the <see cref="XacmlMatch"/> class.
/// </summary>
/// <param name="matchId">The match identifier.</param>
/// <param name="attributeValue">The attribute value.</param>
/// <param name="attributeSelector">The attribute selector.</param>
public XacmlMatch(Uri matchId, XacmlAttributeValue attributeValue, XacmlAttributeSelector attributeSelector)
{
if (matchId == null)
{
throw new ArgumentNullException(nameof(matchId));
}
if (attributeValue == null)
{
throw new ArgumentNullException(nameof(attributeValue));
}
if (attributeSelector == null)
{
throw new ArgumentNullException(nameof(attributeSelector));
}
this.matchId = matchId;
this.attributeValue = attributeValue;
this.attributeSelector = attributeSelector;
}
/// <summary>
/// Initializes a new instance of the <see cref="XacmlActionMatch"/> class.
/// </summary>
/// <param name="matchId">The match identifier.</param>
/// <param name="attributeValue">The attribute value.</param>
/// <param name="attributeSelector">The attribute selector.</param>
public XacmlActionMatch(Uri matchId, XacmlAttributeValue attributeValue, XacmlAttributeSelector attributeSelector)
: base(matchId, attributeValue, attributeSelector) {
Contract.Requires<ArgumentNullException>(matchId != null);
Contract.Requires<ArgumentNullException>(attributeValue != null);
Contract.Requires<ArgumentNullException>(attributeSelector != null);
}
/// <summary>
/// Initializes a new instance of the <see cref="XacmlActionMatch"/> class.
/// </summary>
/// <param name="matchId">The match identifier.</param>
/// <param name="attributeValue">The attribute value.</param>
/// <param name="attributeSelector">The attribute selector.</param>
public XacmlActionMatch(Uri matchId, XacmlAttributeValue attributeValue, XacmlAttributeSelector attributeSelector)
: base(matchId, attributeValue, attributeSelector)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="XacmlResourceMatch"/> class.
/// </summary>
/// <param name="matchId">The match identifier.</param>
/// <param name="attributeValue">The attribute value.</param>
/// <param name="attributeSelector">The attribute selector.</param>
public XacmlResourceMatch(Uri matchId, XacmlAttributeValue attributeValue, XacmlAttributeSelector attributeSelector)
: base(matchId, attributeValue, attributeSelector)
{
}
/// <summary>
/// Writes the attribute selector.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="data">The data.</param>
protected override void WriteAttributeSelector(XmlWriter writer, XacmlAttributeSelector data) {
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.AttributeSelector, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.Category, data.Category.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.Path, data.Path);
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, data.DataType.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.MustBePresent, data.MustBePresent.ToString());
if (data.ContextSelectorId != null) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.ContextSelectorId, data.ContextSelectorId.OriginalString);
}
writer.WriteEndElement();
}
/// <summary>
/// Reads the attribute selector.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns></returns>
protected override XacmlAttributeSelector ReadAttributeSelector(XmlReader reader) {
Contract.Requires<ArgumentNullException>(reader != null, "reader");
Contract.Requires<XmlException>(reader.IsStartElement(XacmlConstants.ElementNames.AttributeSelector, this.version.NamespacePolicy));
XacmlAttributeSelector result = new XacmlAttributeSelector(
this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.Category),
this.ReadAttribute<string>(reader, XacmlConstants.AttributeNames.Path),
this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.DataType),
this.ReadAttribute<bool>(reader, XacmlConstants.AttributeNames.MustBePresent)
) {
ContextSelectorId = this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.ContextSelectorId, isRequered: false)
};
reader.ReadInnerXml();
return result;
}
protected virtual IEnumerable<string> GetAttributeSelector(XacmlAttributeSelector selector) {
Contract.Requires<ArgumentNullException>(selector != null);
IEnumerable<XmlNode> attributeBag = this.pip.GetAttributeByXPath(this.xpathVersion, selector.Path, this.namespaces);
if (!attributeBag.Any()) {
if (selector.MustBePresent.HasValue && selector.MustBePresent.Value) {
// return "Indeterminate”
return null;
}
}
return attributeBag.Select(o => o.Value);
}
protected override IEnumerable<string> GetAttributeSelector(XacmlAttributeSelector selector) {
IEnumerable<XmlNode> attributeBag = this.pip.GetAttributeByXPath(this.xpathVersion, selector.Path, selector.Category, selector.ContextSelectorId, this.namespaces);
if (attributeBag.Count() == 0) {
if (selector.MustBePresent.HasValue && selector.MustBePresent.Value) {
// return "Indeterminate”
return null;
}
}
return attributeBag.Select(o => o.Value);
}
/// <summary>
/// protected virtual void WriteAttributeSelector
/// </summary>
/// <param name="writer">XmlWriter writer</param>
/// <param name="data">XacmlAttributeSelector data</param>
protected virtual void WriteAttributeSelector(XmlWriter writer, XacmlAttributeSelector data) {
Contract.Requires<ArgumentNullException>(writer != null);
Contract.Requires<ArgumentNullException>(data != null);
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.AttributeSelector, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.RequestContextPath, data.Path.ToString());
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, data.DataType.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.MustBePresent, data.MustBePresent.ToString());
writer.WriteEndElement();
}
