/// <summary>
/// Create a new Instance of the specified type.
///
/// Type should have an empty constructor or a constructor with annotation.
/// </summary>
/// <param name="type">Type</param>
/// <param name="node">Configuration node.</param>
/// <returns>Created Instance</returns>
public static object CreateInstance(Type type, ConfigPathNode node)
{
object target = null;
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 = Activator.CreateInstance(type, values.ToArray());
}
}
}
}
else
{
target = Activator.CreateInstance(type);
}
}
}
}
if (target == null)
{
target = Activator.CreateInstance(type);
}
if (target != null)
{
target = ReadValues((ConfigPathNode)node, target, null);
CallMethodInvokes((ConfigPathNode)node, target);
}
return(target);
}
/// <summary>
/// Process the annotated field and set the values from the configuration attributes.
/// </summary>
/// <typeparam name="T">Target Instance type</typeparam>
/// <param name="node">Configuration Node</param>
/// <param name="target">Target Type instance.</param>
/// <param name="field">Property to update</param>
/// <param name="attr">Config attribute annotation</param>
/// <returns>Updated Target Type instance.</returns>
private static T ProcessField <T>(ConfigPathNode node, T target, FieldInfo field, ConfigAttribute attr, List <string> valuePaths)
{
string pname = attr.Name;
if (String.IsNullOrWhiteSpace(pname))
{
pname = field.Name;
}
string value = null;
if (!String.IsNullOrWhiteSpace(attr.Path))
{
AbstractConfigNode nnode = node.Find(attr.Path);
if (nnode != null && nnode.GetType() == typeof(ConfigPathNode))
{
node = (ConfigPathNode)nnode;
}
else
{
node = null;
}
}
if (node != null)
{
ConfigAttributesNode pnode = node.GetAttributes();
if (pnode != null)
{
ConfigValueNode vn = pnode.GetValue(pname);
if (vn != null)
{
value = vn.GetValue();
}
if (valuePaths != null)
{
valuePaths.Add(pnode.GetSearchPath());
}
}
}
if (!String.IsNullOrWhiteSpace(value))
{
object v = GetValue <T>(pname, value, attr.Function, field.FieldType, target, attr.Required);
if (v != null)
{
TypeUtils.CallSetter(field, target, v);
}
}
else if (attr.Required)
{
throw AnnotationProcessorException.Throw(target.GetType(), pname);
}
return(target);
}
/// <summary>
/// Process the annotated property and set the values from the configuration parameters.
/// </summary>
/// <typeparam name="T">Target Instance type</typeparam>
/// <param name="node">Configuration Node</param>
/// <param name="target">Target Type instance.</param>
/// <param name="property">Property to update</param>
/// <param name="param">Config param annotation</param>
/// <returns>Updated Target Type instance.</returns>
private static T ProcessProperty <T>(ConfigPathNode node, T target, PropertyInfo property, ConfigParam param, List <string> valuePath)
{
string pname = param.Name;
if (String.IsNullOrWhiteSpace(pname))
{
pname = property.Name;
}
string value = null;
if (!String.IsNullOrWhiteSpace(param.Path))
{
AbstractConfigNode nnode = node.Find(param.Path);
if (nnode != null && nnode.GetType() == typeof(ConfigPathNode))
{
node = (ConfigPathNode)nnode;
}
else
{
node = null;
}
}
if (node != null)
{
ConfigParametersNode pnode = node.GetParameters();
if (pnode != null)
{
ConfigValueNode vn = pnode.GetValue(pname);
if (vn != null)
{
value = vn.GetValue();
}
if (valuePath != null)
{
valuePath.Add(pnode.GetSearchPath());
}
}
}
if (!String.IsNullOrWhiteSpace(value))
{
object v = GetValue <T>(pname, value, param.Function, property.PropertyType, target, param.Required);
if (v != null)
{
property.SetValue(target, v);
}
}
else if (param.Required)
{
throw AnnotationProcessorException.Throw(target.GetType(), pname);
}
return(target);
}
/// <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>
/// Load the defined processes for the pipeline.
/// </summary>
/// <param name="pipeline">Parent pipeline</param>
/// <param name="node">Configuration node.</param>
/// <param name="name">Pipeline name</param>
private void LoadProcessors(object pipeline, ConfigPathNode node, string name)
{
AbstractConfigNode pnode = node.Find(CONFIG_NODE_PROCESSORS);
Conditions.NotNull(pnode);
if (pnode.GetType() == typeof(ConfigPathNode))
{
LoadProcessor(pipeline, (ConfigPathNode)pnode, name);
}
else if (pnode.GetType() == typeof(ConfigElementListNode))
{
ConfigElementListNode nodes = (ConfigElementListNode)pnode;
foreach (ConfigElementNode elem in nodes.GetValues())
{
if (elem.GetType() == typeof(ConfigPathNode) && elem.Name == CONFIG_NODE_PROCESSOR)
{
LoadProcessor(pipeline, (ConfigPathNode)elem, name);
}
}
}
}
/// <summary>
/// Process the annotated field and set the values from the configuration value.
/// </summary>
/// <typeparam name="T">Target Instance type</typeparam>
/// <param name="node">Configuration Node</param>
/// <param name="target">Target Type instance.</param>
/// <param name="field">Property to update</param>
/// <param name="configValue">Config value annotation</param>
/// <returns>Updated Target Type instance.</returns>
private static T ProcessField <T>(ConfigPathNode node, T target, FieldInfo field, ConfigValue configValue, List <string> valuePaths)
{
string pname = configValue.Name;
if (String.IsNullOrWhiteSpace(pname))
{
pname = field.Name;
}
string value = null;
if (!String.IsNullOrWhiteSpace(configValue.Path))
{
AbstractConfigNode nnode = node.Find(configValue.Path);
if (nnode != null && nnode.GetType() == typeof(ConfigPathNode))
{
node = (ConfigPathNode)nnode;
}
else
{
node = null;
}
}
if (node != null)
{
AbstractConfigNode cnode = node.GetChildNode(pname);
if (cnode != null)
{
if (valuePaths != null)
{
valuePaths.Add(cnode.GetSearchPath());
}
if (cnode.GetType() == typeof(ConfigValueNode))
{
ConfigValueNode vn = (ConfigValueNode)cnode;
if (vn != null)
{
value = vn.GetValue();
}
if (!String.IsNullOrWhiteSpace(value))
{
object v = GetValue <T>(pname, value, configValue.Function, field.FieldType, target, configValue.Required);
if (v != null)
{
TypeUtils.CallSetter(field, target, v);
}
}
}
else
{
if (ReflectionUtils.IsSubclassOfRawGeneric(field.FieldType, typeof(List <>)))
{
if (cnode.GetType() == typeof(ConfigListValueNode))
{
ConfigListValueNode configList = (ConfigListValueNode)cnode;
List <string> values = configList.GetValueList();
if (values != null)
{
Type inner = field.FieldType.GetGenericArguments()[0];
object v = ReflectionUtils.ConvertListFromStrings(inner, values);
if (v != null)
{
TypeUtils.CallSetter(field, target, v);
}
}
}
}
else if (ReflectionUtils.IsSubclassOfRawGeneric(field.FieldType, typeof(HashSet <>)))
{
if (cnode.GetType() == typeof(ConfigListValueNode))
{
ConfigListValueNode configList = (ConfigListValueNode)cnode;
List <string> values = configList.GetValueList();
if (values != null)
{
Type inner = field.FieldType.GetGenericArguments()[0];
object v = ReflectionUtils.ConvertSetFromStrings(inner, values);
if (v != null)
{
TypeUtils.CallSetter(field, target, v);
}
}
}
}
}
}
}
object ov = TypeUtils.CallGetter(field, target);
if (ov == null && configValue.Required)
{
throw AnnotationProcessorException.Throw(target.GetType(), pname);
}
return(target);
}
/// <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);
}