/// <summary>
/// Load a defined process from the configuration node.
/// </summary>
/// <param name="pipeline">Parent pipeline</param>
/// <param name="node">Configuration node</param>
/// <param name="pname">Pipeline name</param>
private void LoadProcessor(object pipeline, ConfigPathNode node, string pname)
{
LogUtils.Debug(String.Format("Loading processor from node. [pipeline={0}][node={1}]", pname, node.GetAbsolutePath()));
if (node.Name != CONFIG_NODE_PROCESSOR)
{
LogUtils.Warn(String.Format("Invalid Processor Node: [path={0}]", node.GetSearchPath()));
return;
}
ProcessConfig def = ConfigurationAnnotationProcessor.Process <ProcessConfig>(node);
Conditions.NotNull(def);
string typename = def.Type;
Type type = null;
if (!String.IsNullOrWhiteSpace(def.Assembly))
{
string aname = Path.GetFileName(def.Assembly);
Assembly asm = AssemblyUtils.GetOrLoadAssembly(aname, def.Assembly);
Conditions.NotNull(asm);
type = asm.GetType(typename, true);
Conditions.NotNull(type);
}
else
{
type = Type.GetType(typename, true);
Conditions.NotNull(type);
}
object obj = null;
if (def.IsReference)
{
if (ReflectionUtils.ImplementsGenericInterface(type, typeof(Pipeline <>)))
{
if (pipelines.ContainsKey(def.Name))
{
obj = pipelines[def.Name];
}
else
{
throw new ProcessException(String.Format("Referenced Pipeline not found: [name={0}][type={1}]", def.Name, type.FullName));
}
}
}
else
{
obj = ConfigurationAnnotationProcessor.CreateInstance(type, node);
Conditions.NotNull(obj);
if (!ReflectionUtils.IsSubclassOfRawGeneric(obj.GetType(), typeof(Processor <>)))
{
throw new ProcessException(String.Format("Invalid processor type. [type={0}]", type.FullName));
}
PropertyInfo pi = TypeUtils.FindProperty(type, "Name");
Conditions.NotNull(pi);
pi.SetValue(obj, def.Name);
}
AddProcessor(pipeline, obj, def.Condition, def.TypeName);
}
/// <summary>
/// Load a pipeline definition from the specified node.
/// </summary>
/// <param name="node">Configuration Node</param>
private void LoadPipeline(ConfigPathNode node)
{
LogUtils.Debug(String.Format("Loading pipeline from node. [node={0}]", node.GetAbsolutePath()));
if (node.Name != CONFIG_NODE_PIPELINE)
{
LogUtils.Warn(String.Format("Invalid Pipeline Node: [path={0}]", node.GetSearchPath()));
return;
}
PipelineConfig def = ConfigurationAnnotationProcessor.Process <PipelineConfig>(node);
Conditions.NotNull(def);
Type type = null;
string typename = def.Type;
if (!String.IsNullOrWhiteSpace(def.Assembly))
{
string aname = Path.GetFileName(def.Assembly);
Assembly asm = AssemblyUtils.GetOrLoadAssembly(aname, def.Assembly);
Conditions.NotNull(asm);
type = asm.GetType(typename, true);
Conditions.NotNull(type);
}
else
{
type = Type.GetType(typename, true);
Conditions.NotNull(type);
}
object obj = ConfigurationAnnotationProcessor.CreateInstance(type, node);
Conditions.NotNull(obj);
if (!ReflectionUtils.ImplementsGenericInterface(obj.GetType(), typeof(Pipeline <>)))
{
throw new ProcessException(String.Format("Invalid pipeline type. [type={0}]", type.FullName));
}
PropertyInfo pi = TypeUtils.FindProperty(type, PROPPERTY_NAME);
Conditions.NotNull(pi);
pi.SetValue(obj, def.Name);
LoadProcessors(obj, node, def.Name);
if (pipelines.ContainsKey(def.Name))
{
throw new ProcessException(String.Format("Duplicate pipeline name: [name={0}][type={1}]", def.Name, type.FullName));
}
pipelines[def.Name] = obj;
}
/// <summary>
/// Check and Invoke annotated methods for this type.
/// </summary>
/// <typeparam name="T">Target Instance type</typeparam>
/// <param name="node">Configuration node.</param>
/// <param name="target">Target Type instance</param>
private static void CallMethodInvokes <T>(ConfigPathNode node, T target)
{
Type type = target.GetType();
MethodInfo[] methods = type.GetMethods(BindingFlags.Public | BindingFlags.Instance);
if (methods != null)
{
foreach (MethodInfo method in methods)
{
MethodInvoke mi = (MethodInvoke)Attribute.GetCustomAttribute(method, typeof(MethodInvoke));
if (mi != null)
{
bool invoked = false;
ParameterInfo[] parameters = method.GetParameters();
ConfigPathNode nnode = node;
if (parameters != null && parameters.Length > 0)
{
if (!String.IsNullOrWhiteSpace(mi.Path))
{
AbstractConfigNode cnode = nnode.Find(mi.Path);
if (cnode != null && cnode.GetType() == typeof(ConfigPathNode))
{
nnode = (ConfigPathNode)cnode;
}
}
if (nnode != null)
{
ConfigParametersNode pnode = nnode.GetParameters();
if (pnode != null)
{
List <object> values = FindParameters(pnode, method.Name, parameters);
if (values != null && values.Count > 0)
{
method.Invoke(target, values.ToArray());
invoked = true;
}
}
}
}
else
{
method.Invoke(target, null);
invoked = true;
}
if (!invoked)
{
throw new AnnotationProcessorException(String.Format("Error Invoking Method : [mehtod={0}][node={1}]",
method.Name, node.GetSearchPath()));
}
}
}
}
}
/// <summary>
/// Create a new Instance of the specified type.
///
/// Type should have an empty constructor or a constructor with annotation.
/// </summary>
/// <typeparam name="T">Target Instance type</typeparam>
/// <param name="type">Type</param>
/// <param name="node">Configuration node.</param>
/// <returns>Created Instance</returns>
public static T CreateInstance <T>(Type type, ConfigPathNode node)
{
T target = default(T);
ConstructorInfo[] constructors = type.GetConstructors(BindingFlags.Public | BindingFlags.Instance);
if (constructors != null && constructors.Length > 0)
{
foreach (ConstructorInfo ci in constructors)
{
MethodInvoke mi = (MethodInvoke)Attribute.GetCustomAttribute(ci, typeof(MethodInvoke));
if (mi != null)
{
ParameterInfo[] parameters = ci.GetParameters();
ConfigPathNode nnode = node;
if (parameters != null && parameters.Length > 0)
{
if (!String.IsNullOrWhiteSpace(mi.Path))
{
AbstractConfigNode cnode = nnode.Find(mi.Path);
if (cnode != null && cnode.GetType() == typeof(ConfigPathNode))
{
nnode = (ConfigPathNode)cnode;
}
}
if (nnode != null)
{
ConfigParametersNode pnode = nnode.GetParameters();
if (pnode != null)
{
List <object> values = FindParameters(pnode, ci.Name, parameters);
if (values != null && values.Count > 0)
{
target = (T)Activator.CreateInstance(type, values.ToArray());
break;
}
}
}
}
else
{
target = Activator.CreateInstance <T>();
break;
}
}
}
}
if (ReflectionUtils.IsNull(target))
{
target = Activator.CreateInstance <T>();
}
if (!ReflectionUtils.IsNull(target))
{
target = ReadValues((ConfigPathNode)node, target, null);
CallMethodInvokes((ConfigPathNode)node, target);
}
else
{
throw new AnnotationProcessorException(String.Format("Error creating instance of Type: [path={0}][type={1}]", node.GetSearchPath(), type.FullName));
}
return(target);
}