/// <summary>
/// Writes the apply.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="xacmlApply">The xacml apply.</param>
protected override void WriteApply(XmlWriter writer, XacmlApply xacmlApply) {
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.FunctionId, xacmlApply.FunctionId.OriginalString);
if (xacmlApply.Description != null) {
writer.WriteElementString(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.Description, this.version.NamespacePolicy, xacmlApply.Description);
}
foreach (IXacmlApply applyElem in xacmlApply.Parameters) {
this.WriteExpressionType(writer, new XacmlExpression() { Property = applyElem });
}
}
/// <summary>
/// Reads the apply.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns></returns>
protected override XacmlApply ReadApply(XmlReader reader) {
Contract.Requires<ArgumentNullException>(reader != null, "reader");
Contract.Requires<XmlException>(reader.IsStartElement(XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy));
Uri functionId = this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.FunctionId);
reader.ReadStartElement(XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy);
XacmlApply apply = new XacmlApply(functionId);
if (reader.IsStartElement(XacmlConstants.ElementNames.Description, this.version.NamespacePolicy)) {
apply.Description = reader.ReadElementContentAsString(XacmlConstants.ElementNames.Description, this.version.NamespacePolicy);
}
IDictionary<Tuple<string, string>, Action> dicts = new Dictionary<Tuple<string, string>, Action>()
{
{ new Tuple<string, string>(XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadApply(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.Function, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadFunction(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.AttributeValue, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeValue(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.AttributeDesignator, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeDesignator(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.AttributeSelector, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeSelector(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.VariableReference, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadOptional(XacmlConstants.ElementNames.VariableReference, this.version.NamespacePolicy,
new ReadElement<XacmlVariableReference>(
o =>
{
string res = this.ReadAttribute<string>(reader, XacmlConstants.AttributeNames.VariableId);
reader.Read();
return new XacmlVariableReference(res);
}
), reader)) },
};
this.ReadChoiceMultiply(reader, dicts);
reader.ReadEndElement();
return apply;
}
protected object ApplyEvaluate(XacmlApply apply) {
Contract.Requires<ArgumentNullException>(apply != null);
// get function
DelegateWrapper matchFunction = this.functions[apply.FunctionId.ToString()];
object[] parameters = apply.Parameters.Select(o => this.ExpressionEvaluate(o)).ToArray();
object result = matchFunction.DynamicInvoke(new XPathContext(this.xpathVersion, this.requestDoc, this.namespaces), parameters);
return result;
}
/// <summary>
/// Reads the apply.
/// </summary>
/// <param name="reader">The reader.</param>
/// <returns></returns>
/// <exception cref="System.Xml.XmlException">Apply NotStartElement</exception>
protected virtual XacmlApply ReadApply(XmlReader reader) {
Contract.Requires<ArgumentNullException>(reader != null, "reader");
if (!reader.IsStartElement(XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy)) {
throw Diagnostic.DiagnosticTools.ExceptionUtil.ThrowHelperError(new XmlException("Apply NotStartElement"));
}
Uri functionId = this.ReadAttribute<Uri>(reader, XacmlConstants.AttributeNames.FunctionId);
reader.ReadStartElement(XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy);
XacmlApply apply = new XacmlApply(functionId);
IDictionary<Tuple<string, string>, Action> dicts = new Dictionary<Tuple<string, string>, Action>()
{
{ new Tuple<string, string>(XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadApply(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.Function, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadFunction(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.AttributeValue, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeValue(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.SubjectAttributeDesignator, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeDesignator(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.ResourceAttributeDesignator, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeDesignator(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.ActionAttributeDesignator, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeDesignator(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.EnvironmentAttributeDesignator, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeDesignator(reader)) },
{ new Tuple<string, string>(XacmlConstants.ElementNames.AttributeSelector, this.version.NamespacePolicy), () => apply.Parameters.Add(this.ReadAttributeSelector(reader)) },
};
this.ReadChoiceMultiply(reader, dicts);
reader.ReadEndElement();
return apply;
}
/// <summary>
/// Write ApplyType (Not element!)
/// </summary>
/// <param name="writer"></param>
/// <param name="apply"></param>
private void WriteApplyType(XmlWriter writer, XacmlApply apply) {
Contract.Requires<ArgumentNullException>(writer != null);
Contract.Requires<ArgumentNullException>(apply != null);
writer.WriteAttributeString(XacmlConstants.AttributeNames.FunctionId, apply.FunctionId.OriginalString);
foreach (IXacmlApply applyElem in apply.Parameters) {
Type applyElemType = applyElem.GetType();
if (applyElemType == typeof(XacmlAttributeSelector)) {
XacmlAttributeSelector elem = applyElem as XacmlAttributeSelector;
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.AttributeSelector, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.RequestContextPath, elem.Path);
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, elem.DataType.OriginalString);
if (elem.MustBePresent.HasValue) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, XmlConvert.ToString(elem.MustBePresent.Value));
}
writer.WriteEndElement();
}
else if (applyElemType == typeof(XacmlResourceAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlResourceAttributeDesignator);
}
else if (applyElemType == typeof(XacmlActionAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlActionAttributeDesignator);
}
else if (applyElemType == typeof(XacmlEnvironmentAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlEnvironmentAttributeDesignator);
}
else if (applyElemType == typeof(XacmlSubjectAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlSubjectAttributeDesignator);
}
else if (applyElemType == typeof(XacmlAttributeValue)) {
this.WriteAttributeValue(writer, applyElem as XacmlAttributeValue);
}
else if (applyElemType == typeof(XacmlFunction)) {
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.Function, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.FunctionId, (applyElem as XacmlFunction).FunctionId.OriginalString);
writer.WriteEndElement();
}
else if (applyElemType == typeof(XacmlApply)) {
this.WriteApply(writer, applyElem as XacmlApply);
}
}
}
/// <summary>
/// Writes the apply.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="apply">The apply.</param>
protected virtual void WriteApply(XmlWriter writer, XacmlApply apply) {
Contract.Requires<ArgumentNullException>(writer != null);
Contract.Requires<ArgumentNullException>(apply != null);
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy);
this.WriteApplyType(writer, apply);
writer.WriteEndElement();
}
/// <summary>
/// Writes the apply.
/// </summary>
/// <param name="writer">The writer.</param>
/// <param name="xacmlApply">The xacml apply.</param>
protected override void WriteApply(XmlWriter writer, XacmlApply xacmlApply) {
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.Apply, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.FunctionId, xacmlApply.FunctionId.OriginalString);
foreach (IXacmlApply applyElem in xacmlApply.Parameters) {
Type applyElemType = applyElem.GetType();
if (applyElemType == typeof(XacmlVariableReference)) {
XacmlVariableReference elem = applyElem as XacmlVariableReference;
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.VariableReference, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.VariableId, elem.VariableReference);
writer.WriteEndElement();
}
else if (applyElemType == typeof(XacmlAttributeSelector)) {
XacmlAttributeSelector elem = applyElem as XacmlAttributeSelector;
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.AttributeSelector, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.RequestContextPath, elem.Path);
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, elem.DataType.OriginalString);
if (elem.MustBePresent.HasValue) {
writer.WriteAttributeString(XacmlConstants.AttributeNames.DataType, XmlConvert.ToString(elem.MustBePresent.Value));
}
writer.WriteEndElement();
}
else if (applyElemType == typeof(XacmlResourceAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlResourceAttributeDesignator);
}
else if (applyElemType == typeof(XacmlActionAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlActionAttributeDesignator);
}
else if (applyElemType == typeof(XacmlEnvironmentAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlEnvironmentAttributeDesignator);
}
else if (applyElemType == typeof(XacmlSubjectAttributeDesignator)) {
this.WriteAttributeDesignator(writer, applyElem as XacmlSubjectAttributeDesignator);
}
else if (applyElemType == typeof(XacmlAttributeValue)) {
this.WriteAttributeValue(writer, applyElem as XacmlAttributeValue);
}
else if (applyElemType == typeof(XacmlFunction)) {
writer.WriteStartElement(XacmlConstants.Prefixes.Policy, XacmlConstants.ElementNames.Function, this.version.NamespacePolicy);
writer.WriteAttributeString(XacmlConstants.AttributeNames.FunctionId, (applyElem as XacmlFunction).FunctionId.OriginalString);
writer.WriteEndElement();
}
else if (applyElemType == typeof(XacmlApply)) {
this.WriteApply(writer, applyElem as XacmlApply);
}
}
writer.WriteEndElement();
}
