// We need to append the key value path segment from $id.
private static void AppendIdForRef(IList <ODataPathSegment> segments, Semantic.KeySegment id)
{
if (id == null || !(segments.Last() is RefPathSegment))
{
return;
}
segments.Add(new KeyValuePathSegment(ConvertKeysToString(id.Keys, enableUriTemplateParsing: false)));
}
/// <summary>
/// Check if this segment is equal to another segment.
/// </summary>
/// <param name="other">the other segment to check.</param>
/// <returns>true if the other segment is equal.</returns>
/// <exception cref="System.ArgumentNullException">Throws if the input other is null.</exception>
internal override bool Equals(ODataPathSegment other)
{
ExceptionUtils.CheckArgumentNotNull(other, "other");
KeySegment otherKeySegment = other as KeySegment;
return(otherKeySegment != null &&
otherKeySegment.Keys.SequenceEqual(this.Keys) &&
otherKeySegment.EdmType == this.edmType &&
otherKeySegment.NavigationSource == this.navigationSource);
}
/// <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>
/// Translates an ODL path to Web API path.
/// </summary>
/// <param name="path">The ODL path to be translated.</param>
/// <param name="model">The model used to translate.</param>
/// <param name="unresolvedPathSegment">Unresolved path segment.</param>
/// <param name="id">The key segment from $id.</param>
/// <param name="enableUriTemplateParsing">Specifies the ODL path is template or not.</param>
/// <param name="parameterAliasNodes">The parameter alias nodes info.</param>
/// <returns>The translated Web API path.</returns>
public static ODataPath TranslateODLPathToWebAPIPath(
Semantic.ODataPath path,
IEdmModel model,
UnresolvedPathSegment unresolvedPathSegment,
Semantic.KeySegment id,
bool enableUriTemplateParsing,
IDictionary <string, Semantic.SingleValueNode> parameterAliasNodes)
{
if (path == null)
{
throw Error.ArgumentNull("path");
}
if (model == null)
{
throw Error.ArgumentNull("model");
}
if (parameterAliasNodes == null)
{
throw Error.ArgumentNull("parameterAliasNodes");
}
IList <ODataPathSegment> segments = path.WalkWith(
new ODataPathSegmentTranslator(model, enableUriTemplateParsing, parameterAliasNodes))
.SelectMany(s => s).ToList();
if (unresolvedPathSegment != null)
{
segments.Add(unresolvedPathSegment);
}
if (!enableUriTemplateParsing)
{
AppendIdForRef(segments, id);
}
ReverseRefPathSegmentAndKeyValuePathSegment(segments);
ODataPath odataPath = new ODataPath(segments);
odataPath.ODLPath = path;
return(odataPath);
}
/// <summary>
/// Translate a KeySegment
/// </summary>
/// <param name="segment">the segment to Translate</param>
/// <returns>Translated WebApi path segment.</returns>
public override IEnumerable <ODataPathSegment> Translate(Semantic.KeySegment segment)
{
yield return(new KeyValuePathSegment(ConvertKeysToString(segment.Keys, _enableUriTemplateParsing)));
}
private static ODataPath Parse(
IEdmModel model,
string serviceRoot,
string odataPath,
ODataUriResolverSetttings resolverSettings,
bool enableUriTemplateParsing)
{
ODataUriParser uriParser;
Uri serviceRootUri = null;
Uri fullUri = null;
NameValueCollection queryString = null;
if (enableUriTemplateParsing)
{
uriParser = new ODataUriParser(model, new Uri(odataPath, UriKind.Relative));
uriParser.EnableUriTemplateParsing = true;
}
else
{
Contract.Assert(serviceRoot != null);
serviceRootUri = new Uri(
serviceRoot.EndsWith("/", StringComparison.Ordinal) ?
serviceRoot :
serviceRoot + "/");
fullUri = new Uri(serviceRootUri, odataPath);
queryString = fullUri.ParseQueryString();
uriParser = new ODataUriParser(model, serviceRootUri, fullUri);
}
uriParser.Resolver = resolverSettings.CreateResolver();
Semantic.ODataPath path;
UnresolvedPathSegment unresolvedPathSegment = null;
Semantic.KeySegment id = null;
try
{
path = uriParser.ParsePath();
}
catch (ODataUnrecognizedPathException ex)
{
if (ex.ParsedSegments != null &&
ex.ParsedSegments.Count() > 0 &&
(ex.ParsedSegments.Last().EdmType is IEdmComplexType ||
ex.ParsedSegments.Last().EdmType is IEdmEntityType) &&
ex.CurrentSegment != ODataSegmentKinds.Count)
{
if (ex.UnparsedSegments.Count() == 0)
{
path = new Semantic.ODataPath(ex.ParsedSegments);
unresolvedPathSegment = new UnresolvedPathSegment(ex.CurrentSegment);
}
else
{
// Throw ODataException if there is some segment following the unresolved segment.
throw new ODataException(Error.Format(
SRResources.InvalidPathSegment,
ex.UnparsedSegments.First(),
ex.CurrentSegment));
}
}
else
{
throw;
}
}
if (!enableUriTemplateParsing && path.LastSegment is Semantic.NavigationPropertyLinkSegment)
{
IEdmCollectionType lastSegmentEdmType = path.LastSegment.EdmType as IEdmCollectionType;
if (lastSegmentEdmType != null)
{
Semantic.EntityIdSegment entityIdSegment = null;
bool exceptionThrown = false;
try
{
entityIdSegment = uriParser.ParseEntityId();
if (entityIdSegment != null)
{
// Create another ODataUriParser to parse $id, which is absolute or relative.
ODataUriParser parser = new ODataUriParser(model, serviceRootUri, entityIdSegment.Id);
id = parser.ParsePath().LastSegment as Semantic.KeySegment;
}
}
catch (ODataException)
{
// Exception was thrown while parsing the $id.
// We will throw another exception about the invalid $id.
exceptionThrown = true;
}
if (exceptionThrown ||
(entityIdSegment != null &&
(id == null ||
!(id.EdmType.IsOrInheritsFrom(lastSegmentEdmType.ElementType.Definition) ||
lastSegmentEdmType.ElementType.Definition.IsOrInheritsFrom(id.EdmType)))))
{
throw new ODataException(Error.Format(SRResources.InvalidDollarId, queryString.Get("$id")));
}
}
}
ODataPath webAPIPath = ODataPathSegmentTranslator.TranslateODLPathToWebAPIPath(
path,
model,
unresolvedPathSegment,
id,
enableUriTemplateParsing,
uriParser.ParameterAliasNodes);
CheckNavigableProperty(webAPIPath, model);
return(webAPIPath);
}
/// <summary>
/// Determine the NavigationSource of a KeySegment
/// </summary>
/// <param name="segment">The KeySegment to look in.</param>
/// <returns>The IEdmNavigationSource of this KeySegment</returns>
/// <exception cref="System.ArgumentNullException">Throws if the input segment is null.</exception>
public override IEdmNavigationSource Translate(KeySegment segment)
{
ExceptionUtils.CheckArgumentNotNull(segment, "segment");
return(segment.NavigationSource);
}