public static DefinedTaskContainer Create(Task parent, XmlNode taskNode)
{
DefinedTaskContainer container = new DefinedTaskContainer();
container.Parent = parent;
container.Project = parent.Project;
container.NamespaceManager = parent.NamespaceManager;
container.XmlNode = taskNode;
return container;
}
public static DefinedTaskContainer Create(Task parent, XmlNode taskNode)
{
DefinedTaskContainer container = new DefinedTaskContainer();
container.Parent = parent;
container.Project = parent.Project;
container.NamespaceManager = parent.NamespaceManager;
container.XmlNode = taskNode;
return(container);
}
protected override void ExecuteTask()
{
Log(Level.Info, "Executing defined task.");
// When you call a defined task, you can define any XML attributes that you want.
// We take those, and convert them to properties called "this.whatever". This makes
// them available to the enclosed XML with predictable names.
foreach (XmlAttribute attr in XmlNode.Attributes)
{
string thisPropertyName = "this." + attr.Name;
string thisPropertyValue = Properties.ExpandProperties(attr.Value, Location);
Properties.Add(thisPropertyName, thisPropertyValue);
}
// DefineTask created a class derived from DefinedTask. Pick up the [TaskName] attribute from that derived class.
TaskNameAttribute taskNameAttribute =
(TaskNameAttribute)Attribute.GetCustomAttribute(GetType(), typeof(TaskNameAttribute));
// We stashed the enclosed XML node in the DefintedTaskDefinitions global collection; pick it up now.
XmlNode originalDefinitionNode = DefinedTaskDefinitions.Find(taskNameAttribute.Name);
// NAnt conveniently already has a way to nest tasks: TaskContainer. This is how <if>, <foreach/do>, etc., work.
// We need to define our own derived class to get access to some of the protected properties.
DefinedTaskContainer containedTasks = DefinedTaskContainer.Create(this, originalDefinitionNode);
try
{
containedTasks.Execute();
}
finally
{
foreach (XmlAttribute attr in XmlNode.Attributes)
{
Properties.Remove("this." + attr.Name);
}
}
}