/// <summary>
/// Creates a new instance of the evaluaion context.
/// </summary>
/// <param name="engine">The engine instance.</param>
/// <param name="policyDocument">The policy document instance.</param>
/// <param name="contextDocument">The context document instance.</param>
public EvaluationContext(EvaluationEngine engine, pol.PolicyDocument policyDocument, ctx.ContextDocument contextDocument)
: this()
{
ctx.AttributeReadWriteCollection attributes = new ctx.AttributeReadWriteCollection();
foreach (ctx.AttributeElementReadWrite attribute in contextDocument.Request.Resources[0].Attributes)
{
attributes.Add(new ctx.AttributeElementReadWrite(attribute));
}
ctx.ResourceContentElement resourceContent = null;
if (contextDocument.Request.Resources[0].ResourceContent != null)
{
resourceContent = new ctx.ResourceContentElement(
contextDocument.Request.Resources[0].ResourceContent.XmlDocument,
contextDocument.Request.Resources[0].ResourceContent.SchemaVersion);
}
_engine = engine;
_policyDocument = policyDocument;
_contextDocument = contextDocument;
_currentResource = new ctx.ResourceElementReadWrite(
resourceContent,
contextDocument.Request.Resources[0].ResourceScopeValue,
attributes,
contextDocument.Request.Resources[0].SchemaVersion);
}
/// <summary>
/// Creates a new "target item" using the XmlReader instance provided and the node name for the derived
/// "target item".
/// </summary>
/// <param name="reader">The XmlReader positioned in the "target item" node.</param>
/// <param name="itemNodeName">The node if the "target item".</param>
/// <param name="schemaVersion">The version of the schema that was used to validate.</param>
protected TargetItemBase(XmlReader reader, string itemNodeName, XacmlVersion schemaVersion)
: this( schemaVersion )
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
if (reader.LocalName == itemNodeName)
{
// Find all the attributes in the node and notify the derived class about all of them.
if (reader.HasAttributes)
{
while (reader.MoveToNextAttribute())
{
AttributeFound(reader.NamespaceURI, reader.LocalName, reader.Value);
}
reader.MoveToElement();
}
// Read all the inner attributes and notify the derived class about any node found
while (reader.Read())
{
switch (reader.LocalName)
{
case ContextSchema.AttributeElement.Attribute:
_attributes.Add(new AttributeElementReadWrite(reader, schemaVersion));
break;
default:
NodeFound(reader);
break;
}
if (reader.LocalName == itemNodeName &&
reader.NodeType == XmlNodeType.EndElement)
{
break;
}
}
}
else
{
throw new Exception(Resource.ResourceManager[Resource.MessageKey.exc_invalid_node_name, reader.LocalName]);
}
}
/// <summary>
/// Creates a new instance of the evaluaion context.
/// </summary>
/// <param name="engine">The engine instance.</param>
/// <param name="policyDocument">The policy document instance.</param>
/// <param name="contextDocument">The context document instance.</param>
public EvaluationContext( EvaluationEngine engine, pol.PolicyDocument policyDocument, ctx.ContextDocument contextDocument )
: this()
{
ctx.AttributeReadWriteCollection attributes = new ctx.AttributeReadWriteCollection();
foreach( ctx.AttributeElementReadWrite attribute in contextDocument.Request.Resources[0].Attributes )
{
attributes.Add( new ctx.AttributeElementReadWrite( attribute ) );
}
ctx.ResourceContentElement resourceContent = null;
if( contextDocument.Request.Resources[0].ResourceContent != null )
{
resourceContent = new ctx.ResourceContentElement(
contextDocument.Request.Resources[0].ResourceContent.XmlDocument,
contextDocument.Request.Resources[0].ResourceContent.SchemaVersion );
}
_engine = engine;
_policyDocument = policyDocument;
_contextDocument = contextDocument;
_currentResource = new ctx.ResourceElementReadWrite(
resourceContent,
contextDocument.Request.Resources[0].ResourceScopeValue,
attributes,
contextDocument.Request.Resources[0].SchemaVersion );
}
