/// <summary>
/// Get all the properties from EntityType element in metadata.
/// </summary>
/// <param name="metadata">The whole metadata data.</param>
/// <param name="entityTypeShortName">The short name of entity type.</param>
/// <param name="mpType">The matching property type.</param>
/// <returns>Returns all the properties of an entity.</returns>
public static List<XElement> GetAllPropertiesOfEntity(string metadata, string entityTypeShortName, MatchPropertyType mpType)
{
if (metadata == null || metadata == string.Empty || entityTypeShortName == null || entityTypeShortName == string.Empty)
{
return null;
}
string xpath1 = string.Format(@"//*[local-name()='EntityType' and @Name='{0}']", entityTypeShortName);
string xpath2 = string.Empty;
XElement md = XElement.Parse(metadata);
var entity = md.XPathSelectElement(xpath1, ODataNamespaceManager.Instance);
if (entity != null)
{
string baseTypeFullName = entity.Attribute(@"BaseType") != null ? entity.Attribute(@"BaseType").Value : string.Empty;
string ns = entity.Parent.Attribute("Namespace").Value;
string baseTypeShortName =
baseTypeFullName.Contains(@".") ?
baseTypeFullName.Remove(0, ns.Length + 1) :
baseTypeFullName;
switch (mpType)
{
default:
case MatchPropertyType.Normal:
xpath1 = @"./*[local-name()='Property']";
xpath2 = string.Format(@"//*[local-name()='EntityType' and @Name='{0}']/*[local-name()='Property']", baseTypeShortName);
break;
case MatchPropertyType.Navigations:
xpath1 = @"./*[local-name()='NavigationProperty']";
xpath2 = string.Format(@"//*[local-name()='EntityType' and @Name='{0}']/*[local-name()='NavigationProperty']", baseTypeShortName);
break;
case MatchPropertyType.All:
xpath1 = @"./*[local-name()='Property' or local-name()='NavigationProperty']";
xpath2 = string.Format(@"//*[local-name()='EntityType' and @Name='{0}']/*[local-name()='Property' or local-name()='NavigationProperty']", baseTypeShortName);
break;
}
var currentEntityProps = entity.XPathSelectElements(xpath1, ODataNamespaceManager.Instance);
var baseEntityProps = baseTypeFullName != string.Empty ? md.XPathSelectElements(xpath2, ODataNamespaceManager.Instance) : null;
return baseEntityProps != null ? baseEntityProps.Concat(currentEntityProps).ToList() : currentEntityProps.ToList();
}
else
{
return new List<XElement>();
}
}
/// <summary>
/// Get property names of a EntityType or ComplexType.
/// </summary>
/// <param name="metadata">The metadata document.</param>
/// <param name="@namespace">The namespace of the StructuredType.</param>
/// <param name="complexName">The short name of the StructuredType.</param>
/// <param name="mpType">The property type to get.</param>
/// <returns>The dictionay of property name and its type.</returns>
public static List<string> GetAllPropertiesNamesOfStructuredType(string metadata, string @namespace, string complexName, MatchPropertyType mpType)
{
if (string.IsNullOrEmpty(metadata) || string.IsNullOrEmpty(complexName) || string.IsNullOrEmpty(@namespace))
{
return null;
}
string basePath = @"./*[local-name()='DataServices']/*[local-name()='Schema' and (@Namespace='{0}' or @Alias='{1}')]";
string xpath = string.Format(basePath, @namespace, @namespace) + string.Format(@"/*[@Name='{0}']", complexName);
XElement md = XElement.Parse(metadata);
XElement structuredType = md.XPathSelectElement(xpath, ODataNamespaceManager.Instance);
List<string> propertiesNames = new List<string>();
// Get base type name and namespace.
if (structuredType != null)
{
string baseTypeName = string.Empty;
string baseTypeNs = string.Empty;
if (!string.IsNullOrEmpty(structuredType.GetAttributeValue(@"BaseType")))
{
string fullname = structuredType.GetAttributeValue(@"BaseType");
int dotIndex = structuredType.GetAttributeValue(@"BaseType").LastIndexOf('.');
if (dotIndex != -1 && dotIndex != 0 && dotIndex != fullname.Length - 1)
{
baseTypeNs = fullname.Substring(0, dotIndex);
baseTypeName = fullname.Substring(dotIndex + 1);
}
}
// Get the XPath for properties.
string currentTypePath;
string baseTypePath = string.Empty;
switch (mpType)
{
case MatchPropertyType.All:
currentTypePath = @"./*[local-name()='Property' or local-name()='NavigationProperty']";
if (string.IsNullOrEmpty(baseTypeName)) { break; }
baseTypePath = string.Format(basePath, baseTypeNs, baseTypeNs)
+ string.Format(@"/*[local-name()='{0}' and @Name='{1}']/*[local-name()='Property' or local-name()='NavigationProperty']", structuredType.Name, baseTypeName);
break;
case MatchPropertyType.Navigations:
currentTypePath = @"./*[local-name()='NavigationProperty']";
if (string.IsNullOrEmpty(baseTypeName)) { break; }
baseTypePath = string.Format(basePath, baseTypeNs, baseTypeNs)
+ string.Format(@"/*[local-name()='{0}' and @Name='{1}']/*[local-name()='NavigationProperty']", structuredType.Name, baseTypeName);
break;
case MatchPropertyType.Normal:
currentTypePath = @"./*[local-name()='Property']";
if (string.IsNullOrEmpty(baseTypeName)) { break; }
baseTypePath = string.Format(basePath, baseTypeNs, baseTypeNs)
+ string.Format(@"/*[local-name()='{0}' and @Name='{1}']/*[local-name()='Property']", structuredType.Name, baseTypeName);
break;
default:
return null;
}
IEnumerable<XElement> currentComplexTypeProperties = structuredType.XPathSelectElements(currentTypePath, ODataNamespaceManager.Instance);
IEnumerable<XElement> baseComplexTypeProperties = string.IsNullOrEmpty(baseTypeName) ? null : md.XPathSelectElements(baseTypePath, ODataNamespaceManager.Instance);
IEnumerable<XElement> total = baseComplexTypeProperties != null ? currentComplexTypeProperties.Concat(baseComplexTypeProperties) : currentComplexTypeProperties;
foreach (XElement xe in total)
{
propertiesNames.Add(xe.GetAttributeValue("Name"));
}
}
return propertiesNames;
}