private static void WriteTo(IndentedTextWriter textWriter, ShowPlanElement element)
{
textWriter.Write("[");
textWriter.Write(element.Operator);
textWriter.Write("]");
textWriter.WriteLine();
// Write properties
foreach (ShowPlanProperty property in element.Properties)
{
textWriter.Write(property.FullName);
textWriter.Write(" = ");
textWriter.Write(property.Value);
textWriter.WriteLine();
}
// Write Children
textWriter.Indent++;
foreach (ShowPlanElement child in element.Children)
{
WriteTo(textWriter, child);
}
textWriter.Indent--;
}
private static ShowPlanElement ReadPlanElement(XPathNavigator elementNavigator)
{
ShowPlanOperator op = (ShowPlanOperator)Enum.Parse(typeof(ShowPlanOperator), elementNavigator.GetAttribute("operator", String.Empty));
List <ShowPlanProperty> properties = new List <ShowPlanProperty>();
foreach (XPathNavigator propertyNavigator in elementNavigator.Select("properties/property"))
{
string propertyName = propertyNavigator.GetAttribute("name", String.Empty);
string propertyValue = propertyNavigator.GetAttribute("value", String.Empty);
ShowPlanProperty property = new ShowPlanProperty(propertyName, propertyValue);
properties.Add(property);
}
List <ShowPlanElement> children = new List <ShowPlanElement>();
foreach (XPathNavigator childNode in elementNavigator.Select("input/*"))
{
ShowPlanElement childElement = ReadPlanElement(childNode);
children.Add(childElement);
}
ShowPlanElement element = new ShowPlanElement(op, properties, children);
return(element);
}
/// <summary>
/// Loads an execution plan from an XML document.
/// </summary>
/// <param name="navigable">An XPath navigable object to load the execution plan from</param>
public static ShowPlan FromXml(IXPathNavigable navigable)
{
if (navigable == null)
{
throw ExceptionBuilder.ArgumentNull("navigable");
}
XPathNavigator navigator = navigable.CreateNavigator();
ShowPlanElement root = ReadPlanElement(navigator.SelectSingleNode("executionPlan/element"));
return(new ShowPlan(root));
}
private static void WriteTo(XmlNode parent, ShowPlanElement element)
{
XmlNode elementNode = parent.OwnerDocument.CreateElement("element");
parent.AppendChild(elementNode);
XmlAttribute operatorAtt = parent.OwnerDocument.CreateAttribute("operator");
operatorAtt.Value = element.Operator.ToString();
elementNode.Attributes.Append(operatorAtt);
XmlNode propertiesNode = parent.OwnerDocument.CreateElement("properties");
elementNode.AppendChild(propertiesNode);
foreach (ShowPlanProperty property in element.Properties)
{
XmlNode propertyNode = parent.OwnerDocument.CreateElement("property");
propertiesNode.AppendChild(propertyNode);
XmlAttribute propertyNameAtt = parent.OwnerDocument.CreateAttribute("name");
propertyNameAtt.Value = property.FullName;
propertyNode.Attributes.Append(propertyNameAtt);
XmlAttribute propertyValueAtt = parent.OwnerDocument.CreateAttribute("value");
propertyValueAtt.Value = property.Value;
propertyNode.Attributes.Append(propertyValueAtt);
}
XmlNode inputNode = parent.OwnerDocument.CreateElement("input");
elementNode.AppendChild(inputNode);
foreach (ShowPlanElement child in element.Children)
{
WriteTo(inputNode, child);
}
}
internal static ShowPlan Build(AlgebraNode root)
{
ShowPlanElement rootElement = ShowPlanBuilder.Convert(root);
return(new ShowPlan(rootElement));
}
private ShowPlan(ShowPlanElement root)
{
_root = root;
}
private static void WriteTo(XmlNode parent, ShowPlanElement element)
{
XmlNode elementNode = parent.OwnerDocument.CreateElement("element");
parent.AppendChild(elementNode);
XmlAttribute operatorAtt = parent.OwnerDocument.CreateAttribute("operator");
operatorAtt.Value = element.Operator.ToString();
elementNode.Attributes.Append(operatorAtt);
XmlNode propertiesNode = parent.OwnerDocument.CreateElement("properties");
elementNode.AppendChild(propertiesNode);
foreach (ShowPlanProperty property in element.Properties)
{
XmlNode propertyNode = parent.OwnerDocument.CreateElement("property");
propertiesNode.AppendChild(propertyNode);
XmlAttribute propertyNameAtt = parent.OwnerDocument.CreateAttribute("name");
propertyNameAtt.Value = property.FullName;
propertyNode.Attributes.Append(propertyNameAtt);
XmlAttribute propertyValueAtt = parent.OwnerDocument.CreateAttribute("value");
propertyValueAtt.Value = property.Value;
propertyNode.Attributes.Append(propertyValueAtt);
}
XmlNode inputNode = parent.OwnerDocument.CreateElement("input");
elementNode.AppendChild(inputNode);
foreach (ShowPlanElement child in element.Children)
{
WriteTo(inputNode, child);
}
}
private static ShowPlanElement ReadPlanElement(XPathNavigator elementNavigator)
{
ShowPlanOperator op = (ShowPlanOperator) Enum.Parse(typeof(ShowPlanOperator), elementNavigator.GetAttribute("operator", String.Empty));
List<ShowPlanProperty> properties = new List<ShowPlanProperty>();
foreach (XPathNavigator propertyNavigator in elementNavigator.Select("properties/property"))
{
string propertyName = propertyNavigator.GetAttribute("name", String.Empty);
string propertyValue = propertyNavigator.GetAttribute("value", String.Empty);
ShowPlanProperty property = new ShowPlanProperty(propertyName, propertyValue);
properties.Add(property);
}
List<ShowPlanElement> children = new List<ShowPlanElement>();
foreach (XPathNavigator childNode in elementNavigator.Select("input/*"))
{
ShowPlanElement childElement = ReadPlanElement(childNode);
children.Add(childElement);
}
ShowPlanElement element = new ShowPlanElement(op, properties, children);
return element;
}
private ShowPlan(ShowPlanElement root)
{
_root = root;
}
private static void WriteTo(IndentedTextWriter textWriter, ShowPlanElement element)
{
textWriter.Write("[");
textWriter.Write(element.Operator);
textWriter.Write("]");
textWriter.WriteLine();
// Write properties
foreach (ShowPlanProperty property in element.Properties)
{
textWriter.Write(property.FullName);
textWriter.Write(" = ");
textWriter.Write(property.Value);
textWriter.WriteLine();
}
// Write Children
textWriter.Indent++;
foreach (ShowPlanElement child in element.Children)
WriteTo(textWriter, child);
textWriter.Indent--;
}
