private static XElement AddProperty(string propertyName, IType propertyType, object value)
{
var propertyElement = new XElement(
ODataService.NsDataServices + propertyName
);
if (propertyType.ReturnedClass != typeof(string))
{
propertyElement.Add(new XAttribute(ODataService.NsMetadata + "type", LiteralUtil.GetEdmType(propertyType.ReturnedClass)));
}
string serialized = LiteralUtil.SerializeValue(value);
if (serialized == null)
{
propertyElement.Add(new XAttribute(ODataService.NsMetadata + "null", "true"));
}
else
{
propertyElement.Add(new XText(serialized));
}
return(propertyElement);
}
private string CreateMetadataResponse()
{
var schemaElement = new XElement(
NsEdm + "Schema",
new XAttribute(XNamespace.Xmlns + "d", NsDataServices),
new XAttribute(XNamespace.Xmlns + "m", NsMetadata),
new XAttribute("xmlns", NsEdm),
new XAttribute("Namespace", SchemaNamespace)
);
var entityContainerElement = new XElement(
NsEdm + "EntityContainer",
new XAttribute("Name", ContainerName),
new XAttribute(NsMetadata + "IsDefaultEntityContainer", "true")
);
var associations = new Dictionary <string, XElement>();
foreach (var type in _sessionFactory.GetAllClassMetadata().Values)
{
var persister = GetPersister(type);
string entityName = persister.EntityType.ReturnedClass.Name;
var entityElement = new XElement(
NsEdm + "EntityType",
new XAttribute("Name", entityName),
new XElement(
NsEdm + "Key",
new XElement(
NsEdm + "PropertyRef",
new XAttribute("Name", persister.IdentifierPropertyName)
)
)
);
schemaElement.Add(entityElement);
entityElement.Add(new XElement(
NsEdm + "Property",
new XAttribute("Name", persister.IdentifierPropertyName),
new XAttribute("Type", LiteralUtil.GetEdmType(persister.IdentifierType.ReturnedClass)),
new XAttribute("Nullable", "false")
));
foreach (var property in persister.EntityMetamodel.Properties)
{
var collectionType = property.Type as CollectionType;
var manyToOneType = property.Type as ManyToOneType;
var propertyType = property.Type.ReturnedClass;
if (collectionType != null || manyToOneType != null)
{
string fromRole;
string toRole;
string relationship;
string multiplicity;
if (collectionType != null)
{
propertyType = propertyType.GetGenericArguments()[0];
fromRole = entityName + "_" + property.Name;
toRole = propertyType.Name + "_" + entityName;
relationship = toRole + "_" + fromRole;
multiplicity = "*";
}
else
{
fromRole = entityName + "_" + property.Name;
toRole = propertyType.Name + "_" + Inflector.Pluralize(entityName);
relationship = fromRole + "_" + toRole;
multiplicity = "0..1";
}
entityElement.Add(new XElement(
NsEdm + "NavigationProperty",
new XAttribute("Name", property.Name),
new XAttribute("Relationship", SchemaNamespace + "." + relationship),
new XAttribute("FromRole", fromRole),
new XAttribute("ToRole", toRole)
));
XElement association;
if (!associations.TryGetValue(relationship, out association))
{
association = new XElement(
NsEdm + "Association",
new XAttribute("Name", relationship)
);
associations.Add(relationship, association);
}
association.Add(new XElement(
NsEdm + "End",
new XAttribute("Role", toRole),
new XAttribute("Type", SchemaNamespace + "." + propertyType.Name),
new XAttribute("Multiplicity", multiplicity)
));
}
else
{
entityElement.Add(new XElement(
NsEdm + "Property",
new XAttribute("Name", property.Name),
new XAttribute("Type", LiteralUtil.GetEdmType(propertyType)),
new XAttribute("Nullable", property.IsNullable ? "true" : "false")
));
}
}
entityContainerElement.Add(new XElement(
NsEdm + "EntitySet",
new XAttribute("Name", Inflector.Pluralize(entityName)),
new XAttribute("EntityType", SchemaNamespace + "." + entityName)
));
}
foreach (var association in associations.Values)
{
schemaElement.Add(association);
}
schemaElement.Add(entityContainerElement);
var document = new XDocument(
new XElement(
NsEdmx + "Edmx",
new XAttribute(XNamespace.Xmlns + "edmx", NsEdmx),
new XAttribute("Version", "1.0"),
new XElement(
NsEdmx + "DataServices",
new XAttribute(XNamespace.Xmlns + "m", NsMetadata),
new XAttribute(NsMetadata + "DataServiceVersion", "2.0"),
schemaElement
)
)
);
return(document.ToString(SaveOptions.DisableFormatting));
}
