/// <summary>
/// Initializes a new instance of the <see cref="XacmlContextSubject"/> class.
/// </summary>
/// <param name="attributes">The attribute.</param>
public XacmlContextSubject(XacmlContextAttribute attribute)
: this(new XacmlContextAttribute[] { attribute }) {
Contract.Requires<ArgumentNullException>(attribute != null);
}
/// <summary>
/// Initializes a new instance of the <see cref="XacmlContextAction"/> class.
/// </summary>
/// <param name="attribute">The attribute.</param>
public XacmlContextAction(XacmlContextAttribute attribute)
: this(new XacmlContextAttribute[] { attribute })
{
}
protected virtual XacmlContextAttribute ReadContextAttribute(XmlReader reader) {
Contract.Requires<ArgumentNullException>(reader != null, "reader");
Contract.Requires<XmlException>(reader.IsStartElement(XacmlConstants.ElementNames.Attribute, this.version.NamespaceContext));
// Read attributes
Uri attributeId = this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.AttributeId, isRequered: true);
Uri dataType = this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.DataType, isRequered: true);
string issuer = this.ReadAttribute<string>(reader, XacmlConstants.AttributeNames.Issuer, isRequered: false);
DateTime? issueInstant = null;
string issueInstantString = this.ReadAttribute<string>(reader, XacmlConstants.AttributeNames.IssueInstant, isRequered: false);
if (!string.IsNullOrWhiteSpace(issueInstantString)) {
issueInstant = XmlConvert.ToDateTime(issueInstantString, XmlDateTimeSerializationMode.Local);
}
reader.ReadStartElement(XacmlConstants.ElementNames.Attribute, this.version.NamespaceContext);
// Read elements
XacmlContextAttributeValue attrVal = this.ReadRequired(XacmlConstants.ElementNames.AttributeValue, this.version.NamespaceContext, this.ReadContextAttributeValue, reader);
XacmlContextAttribute result = new XacmlContextAttribute(attributeId, dataType, attrVal) {
Issuer = issuer,
IssueInstant = issueInstant
};
reader.ReadEndElement();
return result;
}
/// <summary>
/// Initializes a new instance of the <see cref="XacmlContextResource"/> class.
/// </summary>
/// <param name="attributes">The attribute.</param>
public XacmlContextResource(XacmlContextAttribute attribute)
: this(new XacmlContextAttribute[] { attribute })
{
}
protected virtual void WriteContextAttribute(XmlWriter writer, XacmlContextAttribute attr) {
Contract.Requires<ArgumentNullException>(writer != null);
Contract.Requires<ArgumentNullException>(attr != null);
writer.WriteStartElement(XacmlConstants.Prefixes.Context, XacmlConstants.ElementNames.Attribute, this.version.NamespaceContext);
writer.WriteAttributeString(XacmlConstants.AttributeNames.AttributeId, attr.AttributeId.ToString());
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, attr.DataType.ToString());
if (!string.IsNullOrEmpty(attr.Issuer)) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.Issuer, attr.Issuer);
}
if (attr.IssueInstant != null) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.IssueInstant, attr.IssueInstant.ToString());
}
if (attr.AttributeValues.Count > 1) {
throw Diagnostic.DiagnosticTools.ExceptionUtil.ThrowHelperError(new XacmlSerializationException("AttributeValues shoul be 1 in version 1.0"));
}
this.WriteContextAttributeValue(writer, attr.AttributeValues.First());
writer.WriteEndElement();
}
/// <summary>
/// Initializes a new instance of the <see cref="XacmlContextSubject"/> class.
/// </summary>
/// <param name="attributes">The attribute.</param>
public XacmlContextSubject(XacmlContextAttribute attribute)
: this(new XacmlContextAttribute[] { attribute })
{
}
/// <summary>
/// Writes the context attribute.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="attr">The attribute.</param>
/// <exception cref="XacmlSerializationException">IssueInstant obsolleten from version 2.0</exception>
protected override void WriteContextAttribute(XmlWriter writer, XacmlContextAttribute attr) {
writer.WriteStartElement(XacmlConstants.Prefixes.Context, XacmlConstants.ElementNames.Attribute, this.version.NamespaceContext);
writer.WriteAttributeString(XacmlConstants.AttributeNames.AttributeId, attr.AttributeId.ToString());
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, attr.DataType.ToString());
if (!string.IsNullOrEmpty(attr.Issuer)) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.Issuer, attr.Issuer);
}
if (attr.IssueInstant != null) {
throw Diagnostic.DiagnosticTools.ExceptionUtil.ThrowHelperError(new XacmlSerializationException("IssueInstant obsolleten from version 2.0"));
}
foreach (var value in attr.AttributeValues) {
this.WriteContextAttributeValue(writer, value);
}
writer.WriteEndElement();
}
/// <summary>
/// Reads the context attribute.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns></returns>
protected override XacmlContextAttribute ReadContextAttribute(XmlReader reader) {
Contract.Requires<ArgumentNullException>(reader != null, "reader");
Contract.Requires<XmlException>(reader.IsStartElement(XacmlConstants.ElementNames.Attribute, this.version.NamespaceContext));
// Read attributes
Uri attributeId = this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.AttributeId, isRequered: true);
Uri dataType = this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.DataType, isRequered: true);
string issuer = this.ReadAttribute<string>(reader, XacmlConstants.AttributeNames.Issuer, isRequered: false);
reader.ReadStartElement(XacmlConstants.ElementNames.Attribute, this.version.NamespaceContext);
// Read elements
ICollection<XacmlContextAttributeValue> attrValues = new List<XacmlContextAttributeValue>();
this.ReadList(attrValues, XacmlConstants.ElementNames.AttributeValue, this.version.NamespaceContext, ReadContextAttributeValue, reader, isRequired: true);
XacmlContextAttribute result = new XacmlContextAttribute(attributeId, dataType, attrValues) {
Issuer = issuer
};
reader.ReadEndElement();
return result;
}