/// <summary>
/// Creates a new ODataPath with the specified segment added.
/// </summary>
/// <param name="path">The path against which the segment should be applied.</param>
/// <param name="segment">The segment applied to the path.</param>
/// <returns>A new ODataPath with the segment appended.</returns>
public static ODataPath AddSegment(this ODataPath path, ODataPathSegment segment)
{
var newPath = new ODataPath(path);
newPath.Add(segment);
return(newPath);
}
/// <summary>
/// Append the key segment in the end of ODataPath, the method does not modify current ODataPath instance,
/// it returns a new ODataPath without ending type segment.
/// If last segment is type cast, the key would be appended before type cast segment.
/// </summary>
/// <param name="path">Path to perform the computation on.</param>
/// <param name="keys">The set of key property names and the values to be used in searching for the given item.</param>
/// <param name="edmType">The type of the item this key returns.</param>
/// <param name="navigationSource">The navigation source that this key is used to search.</param>
/// <returns>The ODataPath with key segment appended</returns>
public static ODataPath AppendKeySegment(this ODataPath path, IEnumerable <KeyValuePair <string, object> > keys, IEdmEntityType edmType, IEdmNavigationSource navigationSource)
{
var handler = new SplitEndingSegmentOfTypeHandler <TypeSegment>();
path.WalkWith(handler);
KeySegment keySegment = new KeySegment(keys, edmType, navigationSource);
ODataPath newPath = handler.FirstPart;
newPath.Add(keySegment);
foreach (var segment in handler.LastPart)
{
newPath.Add(segment);
}
return(newPath);
}
/// <summary>
/// Build a segment representing a property.
/// </summary>
/// <param name="path">Path to perform the computation on.</param>
/// <param name="property">The property this segment represents.</param>
/// <returns>>The ODataPath with property segment appended in the end.</returns>
public static ODataPath AppendPropertySegment(this ODataPath path, IEdmStructuralProperty property)
{
var newPath = new ODataPath(path);
PropertySegment propertySegment = new PropertySegment(property);
newPath.Add(propertySegment);
return(newPath);
}
/// <summary>
/// Build a segment representing a navigation property.
/// </summary>
/// <param name="path">Path to perform the computation on.</param>
/// <param name="navigationProperty">The navigation property this segment represents.</param>
/// <param name="navigationSource">The navigation source of the entities targeted by this navigation property. This can be null.</param>
/// <returns>The ODataPath with navigation property segment appended in the end.</returns>
public static ODataPath AppendNavigationPropertySegment(this ODataPath path, IEdmNavigationProperty navigationProperty, IEdmNavigationSource navigationSource)
{
var newPath = new ODataPath(path);
NavigationPropertySegment np = new NavigationPropertySegment(navigationProperty, navigationSource);
newPath.Add(np);
return(newPath);
}
/// <summary>
/// Remove the key segment in the end of ODataPath, the method does not modify current ODataPath instance,
/// it returns a new ODataPath without ending type segment.
/// If last segment is type cast, the key before type cast segment would be removed.
/// </summary>
/// <param name="path">Path to perform the computation on.</param>
/// <returns>The ODataPath without key segment removed</returns>
public static ODataPath TrimEndingKeySegment(this ODataPath path)
{
var typeHandler = new SplitEndingSegmentOfTypeHandler <TypeSegment>();
var keyHandler = new SplitEndingSegmentOfTypeHandler <KeySegment>();
path.WalkWith(typeHandler);
typeHandler.FirstPart.WalkWith(keyHandler);
ODataPath newPath = keyHandler.FirstPart;
foreach (var segment in typeHandler.LastPart)
{
newPath.Add(segment);
}
return(newPath);
}
