[ResourceConsumption(ResourceScope.Machine)] //For CheckArtifactExtension method call. But the path is not created in this method. internal static MetadataArtifactLoader Create(string path, ExtensionCheck extensionCheck, string validExtension, ICollection <string> uriRegistry, MetadataArtifactAssemblyResolver resolver) { Debug.Assert(path != null); Debug.Assert(resolver != null); // res:// -based artifacts // if (MetadataArtifactLoader.PathStartsWithResPrefix(path)) { return(MetadataArtifactLoaderCompositeResource.CreateResourceLoader(path, extensionCheck, validExtension, uriRegistry, resolver)); } // Files and Folders // string normalizedPath = MetadataArtifactLoader.NormalizeFilePaths(path); if (Directory.Exists(normalizedPath)) { return(new MetadataArtifactLoaderCompositeFile(normalizedPath, uriRegistry)); } else if (File.Exists(normalizedPath)) { switch (extensionCheck) { case ExtensionCheck.Specific: CheckArtifactExtension(normalizedPath, validExtension); break; case ExtensionCheck.All: if (!MetadataArtifactLoader.IsValidArtifact(normalizedPath)) { throw EntityUtil.Metadata(Strings.InvalidMetadataPath); } break; } return(new MetadataArtifactLoaderFile(normalizedPath, uriRegistry)); } throw EntityUtil.Metadata(Strings.InvalidMetadataPath); }
/// <summary> /// Constructor - loads the resource stream /// </summary> /// <param name="path">The path to the resource to load</param> /// <param name="uriRegistry">The global registry of URIs</param> internal MetadataArtifactLoaderResource(Assembly assembly, string resourceName, ICollection <string> uriRegistry) { Debug.Assert(assembly != null); Debug.Assert(resourceName != null); _assembly = assembly; _resourceName = resourceName; string tempPath = MetadataArtifactLoaderCompositeResource.CreateResPath(_assembly, _resourceName); _alreadyLoaded = uriRegistry.Contains(tempPath); if (!_alreadyLoaded) { uriRegistry.Add(tempPath); // '_alreadyLoaded' is not set because while we would like to prevent // other instances of MetadataArtifactLoaderFile that wrap the same // _path from being added to the list of paths/readers, we do want to // include this particular instance. } }