/// <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="attributeDesignator">The attribute designator.</param>
public XacmlMatch(Uri matchId, XacmlAttributeValue attributeValue, XacmlAttributeDesignator attributeDesignator) {
Contract.Requires<ArgumentNullException>(matchId != null);
Contract.Requires<ArgumentNullException>(attributeValue != null);
Contract.Requires<ArgumentNullException>(attributeDesignator != null);
this.matchId = matchId;
this.attributeValue = attributeValue;
this.attributeDesignator = attributeDesignator;
}
/// <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="attributeDesignator">The attribute designator.</param>
public XacmlMatch(Uri matchId, XacmlAttributeValue attributeValue, XacmlAttributeDesignator attributeDesignator)
{
if (matchId == null)
{
throw new ArgumentNullException(nameof(matchId));
}
if (attributeValue == null)
{
throw new ArgumentNullException(nameof(attributeValue));
}
if (attributeDesignator == null)
{
throw new ArgumentNullException(nameof(attributeDesignator));
}
this.matchId = matchId;
this.attributeValue = attributeValue;
this.attributeDesignator = attributeDesignator;
}
/// <summary>
/// Writes the attribute designator.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="data">The data.</param>
protected override void WriteAttributeDesignator(XmlWriter writer, XacmlAttributeDesignator data) {
Contract.Requires<ArgumentNullException>(writer != null);
Contract.Requires<ArgumentNullException>(data != null);
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.AttributeDesignator, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.Category, data.Category.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.AttributeId, data.AttributeId.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, data.DataType.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.MustBePresent, XmlConvert.ToString(data.MustBePresent.HasValue && data.MustBePresent.Value));
if (!string.IsNullOrEmpty(data.Issuer)) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.Issuer, data.Issuer);
}
writer.WriteEndElement();
}
protected IEnumerable<string> GetAttributeDesignator(XacmlAttributeDesignator designator) {
Contract.Requires<ArgumentNullException>(designator != null);
IEnumerable<string> attributeBag = this.pip.GetAttributeDesignatorValues(
designator.AttributeId,
designator.DataType,
designator.Issuer,
designator.Category
);
if (attributeBag.Count() == 0) {
if (designator.MustBePresent.HasValue && designator.MustBePresent.Value) {
// return "Indeterminate”
return null;
}
}
return attributeBag;
}
/// <summary>
/// Writes the attribute designator.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="data">The data.</param>
protected virtual void WriteAttributeDesignator(XmlWriter writer, XacmlAttributeDesignator data) {
Contract.Requires<ArgumentNullException>(writer != null);
Contract.Requires<ArgumentNullException>(data != null);
Action<string, dynamic, bool> action = (designatorType, attributeDesignator, writeSubjectCategory) => {
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, designatorType, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.AttributeId, attributeDesignator.AttributeId.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, attributeDesignator.DataType.OriginalString);
if (attributeDesignator.Issuer != null) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.Issuer, attributeDesignator.Issuer);
}
if (attributeDesignator.MustBePresent != null) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.MustBePresent, XmlConvert.ToString(attributeDesignator.MustBePresent));
}
if (writeSubjectCategory == true && attributeDesignator.Category != null) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.SubjectCategory, attributeDesignator.Category.OriginalString);
}
writer.WriteEndElement();
};
var subjectAttributeDesignator = data as XacmlSubjectAttributeDesignator;
if (subjectAttributeDesignator != null) {
action(XacmlConstants.ElementNames.SubjectAttributeDesignator, subjectAttributeDesignator, true);
}
var resourceAttributeDesignator = data as XacmlResourceAttributeDesignator;
if (resourceAttributeDesignator != null) {
action(XacmlConstants.ElementNames.ResourceAttributeDesignator, resourceAttributeDesignator, false);
}
var actionAttributeDesignator = data as XacmlActionAttributeDesignator;
if (actionAttributeDesignator != null) {
action(XacmlConstants.ElementNames.ActionAttributeDesignator, actionAttributeDesignator, false);
}
}
/// <summary>
/// Writes the attribute designator.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="data">The data.</param>
protected override void WriteAttributeDesignator(XmlWriter writer, XacmlAttributeDesignator data) {
Contract.Requires<ArgumentNullException>(writer != null);
Contract.Requires<ArgumentNullException>(data != null);
Action<string, dynamic, bool> action = (designatorType, attributeDesignator, writeSubjectCategory) => {
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, designatorType, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.AttributeId, attributeDesignator.AttributeId.OriginalString);
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, attributeDesignator.DataType.OriginalString);
if (attributeDesignator.Issuer != null) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.Issuer, attributeDesignator.Issuer);
}
if (attributeDesignator.MustBePresent != null) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.MustBePresent, XmlConvert.ToString(attributeDesignator.MustBePresent));
}
writer.WriteEndElement();
};
var environmentAttributeDesignator = data as XacmlEnvironmentAttributeDesignator;
if (environmentAttributeDesignator != null) {
action(XacmlConstants.ElementNames.EnvironmentAttributeDesignator, environmentAttributeDesignator, false);
}
else {
base.WriteAttributeDesignator(writer, data);
}
}