/// <summary>
/// Remove the type-cast segment in the end of ODataPath, the method does not modify current ODataPath instance,
/// it returns a new ODataPath without ending type segment.
/// </summary>
/// <param name="path">Path to perform the computation on.</param>
/// <returns>The ODataPath without type-cast in the end</returns>
public static ODataPath TrimEndingTypeSegment(this ODataPath path)
{
var handler = new SplitEndingSegmentOfTypeHandler <TypeSegment>();
path.WalkWith(handler);
return(handler.FirstPart);
}
/// <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;
AppendLastSegment(typeHandler, newPath);
return(newPath);
}
/// <summary>
/// Add the key segment in the 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>A new ODataPath with key segment added</returns>
public static ODataPath AddKeySegment(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);
AppendLastSegment(handler, newPath);
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);
}
/// <summary>
/// Translate the parameter alias, convert node, returned entity set into OData path segment.
/// </summary>
/// <param name="model">The EDM model</param>
/// <param name="path">The odata path segments</param>
/// <param name="parameterAliasNodes">The parameter alias</param>
/// <returns>The translated odata path segments.</returns>
public static IEnumerable <ODataPathSegment> Translate(IEdmModel model, Semantic.ODataPath path,
IDictionary <string, SingleValueNode> parameterAliasNodes)
{
if (model == null)
{
throw Error.ArgumentNull("model");
}
if (path == null)
{
throw Error.ArgumentNull("path");
}
var translator = new ODataPathSegmentTranslator(model, parameterAliasNodes);
return(path.WalkWith(translator));
}
/// <summary>
/// Get the string representation of <see cref="ODataPath"/>.
/// mainly translate Query Url path.
/// </summary>
/// <param name="path">Path to perform the computation on.</param>
/// <param name="urlKeyDelimiter">Mark whether key is segment</param>
/// <returns>The string representation of the Query Url path.</returns>
public static string ToResourcePathString(this ODataPath path, ODataUrlKeyDelimiter urlKeyDelimiter)
{
return(string.Concat(path.WalkWith(new PathSegmentToResourcePathTranslator(urlKeyDelimiter)).ToArray()).TrimStart('/'));
}
