void Evaluant.Uss.MetaData.IMetaDataVisitor.Process(PropertyMetaData property)
{
Entity entity = _Model[property.Type];
if (entity == null)
{
entity = new Entity(property.Type);
_Model.Entities.Add(entity.Type, entity);
}
Attribute attribute = _Model.GetAttribute(property.Type, property.PropertyName);
if (attribute != null && property.Ignore)
{
entity.Attributes.Remove(attribute.Name);
_Model.ClearAttributeCache();
return;
}
if (attribute == null)
{
attribute = new Attribute(property.PropertyName, property.PropertyType);
attribute.Values = property.Values;
if (!attribute.IsId)
attribute.IsId = string.Equals(attribute.Name, entity.Type.Substring(entity.Type.LastIndexOf('.')) + "Id", StringComparison.OrdinalIgnoreCase);
entity.Attributes.Add(attribute.Name, attribute);
}
// To override a previous value
if (attribute.Type != property.PropertyType)
attribute.Type = property.PropertyType;
if (attribute.Values != property.Values)
attribute.Values = property.Values;
}
public static IMetaData[] FromModelFile(XmlReader inStream)
{
//ITypeResolver typeResolver = new TypeResolverImpl();
List<IMetaData> metadata = new List<IMetaData>(100);
XmlDocument xDoc = new XmlDocument();
xDoc.Load(inStream);
// The reason for needing a prefix for the default namespace in our XPath query is due to the fact that in XPath, there is no concept of a default namespace.
XmlNamespaceManager nsm = new XmlNamespaceManager(xDoc.NameTable);
nsm.AddNamespace("ns", "http://euss.evaluant.com/schemas/GenerationModel.xsd");
foreach (XmlNode n in xDoc.SelectNodes("//ns:Class", nsm))
{
string package = TypeResolver.ConvertNamespaceDomainToEuss(n.ParentNode.Attributes["name"].Value.Trim()) + ":";
string typeName = package + n.Attributes["name"].Value;
metadata.Add(new TypeMetaData(typeName, n.Attributes["inherit"] != null ? package + n.Attributes["inherit"].Value : String.Empty, false));
string[] implement = n.Attributes["implement"] != null ? n.Attributes["implement"].Value.Split(',') : new string[0];
foreach (string interf in implement)
{
metadata.Add(new TypeMetaData(typeName, package + interf.Trim(), true));
}
}
foreach (XmlNode n in xDoc.SelectNodes("//ns:Property", nsm))
{
string package = TypeResolver.ConvertNamespaceDomainToEuss(n.ParentNode.ParentNode.Attributes["name"].Value.Trim()) + ".";
metadata.Add(new PropertyMetaData(package + n.ParentNode.Attributes["name"].Value, n.Attributes["name"].Value, TypeResolver.GetType(n.Attributes["type"].Value), Convert.ToBoolean(n.Attributes["isId"].Value)));
}
foreach (XmlNode n in xDoc.SelectNodes("//ns:Relationship", nsm))
{
string package = TypeResolver.ConvertNamespaceDomainToEuss(n.ParentNode.Attributes["name"].Value.Trim()) + ":";
bool composition = n.Attributes["type"].Value == "composition";
string typeName = package + n.SelectSingleNode("./ns:Parent/@name", nsm).Value;
bool toMany = n.SelectSingleNode("./ns:Child/@multiplicity", nsm).Value.IndexOf("*") != -1;
bool fromMany = n.SelectSingleNode("./ns:Parent/@multiplicity", nsm).Value.IndexOf("*") != -1;
string role = n.SelectSingleNode("./ns:Child/@role", nsm).Value;
string childTypeName = n.SelectSingleNode("./ns:Child/@name", nsm).Value;
if (childTypeName.Trim() == String.Empty)
throw new MetadataException("A relationship has no child type in a model file.");
if (typeName.Trim() == String.Empty)
throw new MetadataException("A relationship has no parent type in a model file.");
// Is it an enumeration ?
XmlNode xmlEnum = xDoc.SelectSingleNode(String.Concat("//ns:Enumeration[@name='", childTypeName, "']"), nsm);
if (xmlEnum != null)
{
ArrayList values = new ArrayList();
foreach (XmlNode valNode in xmlEnum.SelectNodes("./ns:Literal/@name", nsm))
values.Add(valNode.Value);
PropertyMetaData pm = new PropertyMetaData(typeName, role, typeof(string), false);
pm.Values = (string[])values.ToArray(typeof(string));
metadata.Add(pm);
}
else
{
metadata.Add(new ReferenceMetaData(typeName, role, package + childTypeName, composition, fromMany, toMany));
}
}
return metadata.ToArray();
}
public static IMetaData[] FromMetaDataFile(XmlReader inStream)
{
List<IMetaData> metadata = new List<IMetaData>(100);
XmlDocument xDoc = new XmlDocument();
xDoc.Load(inStream);
// The reason for needing a prefix for the default namespace in our XPath query is due to the fact that in XPath, there is no concept of a default namespace.
XmlNamespaceManager nsm = new XmlNamespaceManager(xDoc.NameTable);
nsm.AddNamespace("ns", "http://euss.evaluant.com/schemas/MetaDataModel.xsd");
foreach (XmlNode n in xDoc.SelectNodes("//ns:Entity", nsm))
{
TypeMetaData tmd = new TypeMetaData(n.Attributes["type"].Value, n.Attributes["inherit"] != null ? n.Attributes["inherit"].Value : String.Empty, false);
tmd.Ignore = n.Attributes["ignore"] != null ? bool.Parse(n.Attributes["ignore"].Value) : false;
metadata.Add(tmd);
if (n.Attributes["implement"] != null)
{
foreach (string intf in n.Attributes["implement"].Value.Split(','))
{
TypeMetaData tmdi = new TypeMetaData(n.Attributes["type"].Value, intf.Trim(), true);
metadata.Add(tmd);
}
}
// Processing sub nodes in the same order as they are declared
foreach (XmlNode s in n.SelectNodes("ns:*", nsm))
{
switch (s.Name)
{
case "Attribute":
string typeName = TypeResolver.ConvertNamespaceEussToDomain(s.Attributes["type"].Value);
Type type = TypeResolver.GetType(typeName);
if (type == null)
throw new TypeLoadException(String.Concat("The type ", typeName, " could not be found. You should register the assembly containing it."));
PropertyMetaData pm = new PropertyMetaData(s.ParentNode.Attributes["type"].Value, s.Attributes["name"].Value, type, s.Attributes["idId"] == null ? false : Convert.ToBoolean(s.Attributes["isId"].Value));
if (s.Attributes["values"] != null)
pm.Values = s.Attributes["values"].Value.Split();
pm.Ignore = s.Attributes["ignore"] != null ? bool.Parse(s.Attributes["ignore"].Value) : false;
metadata.Add(pm);
break;
case "Reference":
// fromMany, toMany and composition are false if not specified
bool composition = s.Attributes["composition"] == null ? false : bool.Parse(s.Attributes["composition"].Value);
bool fromMany = s.Attributes["fromMany"] == null ? false : bool.Parse(s.Attributes["fromMany"].Value);
bool toMany = s.Attributes["toMany"] == null ? false : bool.Parse(s.Attributes["toMany"].Value);
ReferenceMetaData rmd = new ReferenceMetaData(s.ParentNode.Attributes["type"].Value, s.Attributes["name"].Value, s.Attributes["type"].Value, composition, fromMany, toMany);
rmd.Ignore = s.Attributes["ignore"] != null ? bool.Parse(s.Attributes["ignore"].Value) : false;
metadata.Add(rmd);
break;
}
}
}
return metadata.ToArray();
}
private static void ImportType(IPersistentDescriptor persDescriptor, IList<IMetaData> metadata, ICollection<string> processed, Type type, string typeName)
{
if (processed.Contains(typeName) || type == typeof(object))
{
return;
}
processed.Add(typeName);
PropertyDescriptor[] properties = persDescriptor.GetPersistentProperties(type);
string parentTypeName = type.BaseType == typeof(object) || type.IsInterface ? String.Empty : TypeResolver.ConvertNamespaceDomainToEuss(type.BaseType);
metadata.Add(new TypeMetaData(typeName, parentTypeName, false));
foreach (Type intf in type.GetInterfaces())
{
metadata.Add(new TypeMetaData(typeName, TypeResolver.ConvertNamespaceDomainToEuss(intf), true));
}
foreach (PropertyDescriptor descriptor in properties)
{
// Relation
if (descriptor.IsEntity)
{
Type propType = descriptor.Type;
if (descriptor.IsList)
{
// Get the child type when the reference is a collection
PersistentPropertyAttribute[] attrs = type.GetProperty(descriptor.PropertyName).GetCustomAttributes(
typeof(PersistentPropertyAttribute), false) as PersistentPropertyAttribute[];
if (attrs != null && attrs.Length > 0)
{
PersistentPropertyAttribute ppa = attrs[0];
propType = ppa.Type;
}
}
#if !EUSS11
if (descriptor.IsGenericList)
{
propType = DescriptorHelper.GetGenericType(descriptor.Type);
}
bool isList = descriptor.IsList || descriptor.IsGenericList;
#else
bool isList = descriptor.IsList;
#endif
// Ignores relationships which are not IList
if (descriptor.IsList && descriptor.Type != typeof(IList))
continue;
// Ignores relationships to undefined Generic types (a relationship to Generic<T>, when the class is itsel generic)
if (propType.FullName == null)
continue;
// Ignore types from System assembly
if (propType.Assembly == typeof(String).Assembly)
{
continue;
}
// Ignore none business types
if (propType.IsPublic && !typeof(IEnumerable).IsAssignableFrom(propType))
{
// Ignore types from System assembly
if (propType.Assembly != typeof(String).Assembly)
{
metadata.Add(new ReferenceMetaData(typeName, descriptor.PropertyName, TypeResolver.ConvertNamespaceDomainToEuss(propType), descriptor.IsComposition, !descriptor.IsComposition, isList));
}
ImportType(persDescriptor, metadata, processed, propType, TypeResolver.ConvertNamespaceDomainToEuss(propType));
}
}
else
{
if (descriptor.Type.IsEnum)
{
Type enumType = typeof(string);
// Try to get an attribute for this property which defines the type of the enum (i.e.: int or string)
PropertyInfo pi = type.GetProperty(descriptor.PropertyName, descriptor.Type);
if (pi != null)
{
PersistentPropertyAttribute[] attrs = pi.GetCustomAttributes(
typeof(PersistentPropertyAttribute), false) as PersistentPropertyAttribute[];
// Add this property if more than one Attribute
if (attrs != null && attrs.Length > 0)
{
// Takes the first attribute even if more are set
PersistentPropertyAttribute ppa = attrs[0];
if (ppa.Type != null)
enumType = ppa.Type;
}
}
List<string> values = new List<string>();
foreach (object val in EnumHelper.GetValues(descriptor.Type))
values.Add(val.ToString());
PropertyMetaData pm = new PropertyMetaData(typeName, descriptor.PropertyName, enumType, false);
pm.Values = values.ToArray();
metadata.Add(pm);
}
else
metadata.Add(new PropertyMetaData(typeName, descriptor.PropertyName, descriptor.Type, false));
}
}
}
public static IMetaData[] FromPropertyDescriptor(Type type, IPersistentDescriptor persDescriptor, bool derivedTypes)
{
List<IMetaData> metadata = new List<IMetaData>();
string typeName = TypeResolver.ConvertNamespaceDomainToEuss(type);
metadata.Add(new TypeMetaData(typeName));
foreach (PropertyDescriptor descriptor in persDescriptor.GetPersistentProperties(type))
{
// Relation
if (descriptor.IsEntity)
{
Type propType = descriptor.Type;
if (descriptor.IsList)
{
// Get the child type when the reference is a collection
PersistentPropertyAttribute[] attrs = type.GetProperty(descriptor.PropertyName).GetCustomAttributes(
typeof(PersistentPropertyAttribute), false) as PersistentPropertyAttribute[];
if (attrs != null && attrs.Length > 0)
{
PersistentPropertyAttribute ppa = attrs[0];
propType = ppa.Type;
}
}
if (descriptor.IsGenericList)
{
propType = DescriptorHelper.GetGenericType(descriptor.Type);
}
bool isList = descriptor.IsList || descriptor.IsGenericList;
metadata.Add(new ReferenceMetaData(typeName, descriptor.PropertyName, TypeResolver.ConvertNamespaceDomainToEuss(propType), descriptor.IsComposition, !descriptor.IsComposition, isList));
}
else
{
if (descriptor.Type.IsEnum)
{
Type enumType = typeof(string);
// Try to get an attribute for this property which defines the type of the enum (i.e.: int or string)
PropertyInfo pi = type.GetProperty(descriptor.PropertyName, descriptor.Type);
if (pi != null)
{
PersistentPropertyAttribute[] attrs = pi.GetCustomAttributes(
typeof(PersistentPropertyAttribute), false) as PersistentPropertyAttribute[];
// Add this property if more than one Attribute
if (attrs != null && attrs.Length > 0)
{
// Takes the first attribute even if more are set
PersistentPropertyAttribute ppa = attrs[0];
if (ppa.Type != null)
enumType = ppa.Type;
}
}
List<string> values = new List<string>();
foreach (object val in EnumHelper.GetValues(descriptor.Type))
values.Add(val.ToString());
PropertyMetaData pm = new PropertyMetaData(typeName, descriptor.PropertyName, enumType, false);
pm.Values = values.ToArray();
metadata.Add(pm);
}
else
metadata.Add(new PropertyMetaData(typeName, descriptor.PropertyName, descriptor.Type, false));
}
}
if (derivedTypes)
foreach (Type dt in type.Assembly.GetTypes())
if (dt.BaseType == type)
{
metadata.AddRange(FromPropertyDescriptor(dt, persDescriptor, true));
metadata.Add(new TypeMetaData(TypeResolver.ConvertNamespaceDomainToEuss(dt), TypeResolver.ConvertNamespaceDomainToEuss(type), type.IsInterface));
}
return metadata.ToArray();
}
