Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / clr / src / BCL / System / Resources / FileBasedResourceGroveler.cs / 1305376 / FileBasedResourceGroveler.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: FileBasedResourceGroveler ** **[....] ** ** ** Purpose: Searches for resources on disk, used for file- ** based resource lookup. ** ** ===========================================================*/ namespace System.Resources { using System; using System.Collections; using System.Collections.Generic; using System.IO; using System.Globalization; using System.Runtime.CompilerServices; using System.Runtime.Versioning; using System.Text; using System.Threading; using System.Diagnostics.Contracts; internal class FileBasedResourceGroveler : IResourceGroveler { private ResourceManager.ResourceManagerMediator _mediator; public FileBasedResourceGroveler(ResourceManager.ResourceManagerMediator mediator) { Contract.Assert(mediator != null, "mediator shouldn't be null; check caller"); _mediator = mediator; } // Consider modifying IResourceGroveler interface (hence this method signature) when we figure out // serialization compat story for moving ResourceManager members to either file-based or // manifest-based classes. Want to continue tightening the design to get rid of unused params. [System.Security.SecuritySafeCritical] // auto-generated public ResourceSet GrovelForResourceSet(CultureInfo culture, DictionarylocalResourceSets, bool tryParents, bool createIfNotExists, ref StackCrawlMark stackMark) { Contract.Assert(culture != null, "culture shouldn't be null; check caller"); String fileName = null; ResourceSet rs = null; // Don't use Assembly manifest, but grovel on disk for a file. try { new System.Security.Permissions.FileIOPermission(System.Security.Permissions.PermissionState.Unrestricted).Assert(); // Create new ResourceSet, if a file exists on disk for it. String tempFileName = _mediator.GetResourceFileName(culture); fileName = FindResourceFile(culture, tempFileName); if (fileName == null) { if (tryParents) { // If we've hit top of the Culture tree, return. if (culture.HasInvariantCultureName) { // We really don't think this should happen - we always // expect the neutral locale's resources to be present. throw new MissingManifestResourceException(Environment.GetResourceString("MissingManifestResource_NoNeutralDisk") + Environment.NewLine + "baseName: " + _mediator.BaseNameField + " locationInfo: " + (_mediator.LocationInfo == null ? " " : _mediator.LocationInfo.FullName) + " fileName: " + _mediator.GetResourceFileName(culture)); } } } else { rs = CreateResourceSet(fileName); } return rs; } finally { System.Security.CodeAccessPermission.RevertAssert(); } } #if !FEATURE_CORECLR // PAL doesn't support eventing, and we don't compile event providers for coreclr public bool HasNeutralResources(CultureInfo culture, String defaultResName) { // Detect missing neutral locale resources. String defaultResPath = FindResourceFile(culture, defaultResName); if (defaultResPath == null || !File.Exists(defaultResPath)) { String dir = _mediator.ModuleDir; if (defaultResPath != null) { dir = Path.GetDirectoryName(defaultResPath); } return false; } return true; } #endif // Given a CultureInfo, it generates the path &; file name for // the .resources file for that CultureInfo. This method will grovel // the disk looking for the correct file name & path. Uses CultureInfo's // Name property. If the module directory was set in the ResourceManager // constructor, we'll look there first. If it couldn't be found in the module // diretory or the module dir wasn't provided, look in the current // directory. [ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] private String FindResourceFile(CultureInfo culture, String fileName) { Contract.Assert(culture != null, "culture shouldn't be null; check caller"); Contract.Assert(fileName != null, "fileName shouldn't be null; check caller"); // If we have a moduleDir, check there first. Get module fully // qualified name, append path to that. if (_mediator.ModuleDir != null) { #if _DEBUG if (ResourceManager.DEBUG >= 3) BCLDebug.Log("FindResourceFile: checking module dir: \""+_mediator.ModuleDir+'\"'); #endif String path = Path.Combine(_mediator.ModuleDir, fileName); if (File.Exists(path)) { #if _DEBUG if (ResourceManager.DEBUG >= 3) BCLDebug.Log("Found resource file in module dir! "+path); #endif return path; } } #if _DEBUG if (ResourceManager.DEBUG >= 3) BCLDebug.Log("Couldn't find resource file in module dir, checking .\\"+fileName); #endif // look in . if (File.Exists(fileName)) return fileName; return null; // give up. } // Constructs a new ResourceSet for a given file name. The logic in // here avoids a ReflectionPermission check for our RuntimeResourceSet // for perf and working set reasons. [System.Security.SecurityCritical] [ResourceExposure(ResourceScope.Machine)] [ResourceConsumption(ResourceScope.Machine)] private ResourceSet CreateResourceSet(String file) { Contract.Assert(file != null, "file shouldn't be null; check caller"); if (_mediator.UserResourceSet == null) { // Explicitly avoid CreateInstance if possible, because it // requires ReflectionPermission to call private & protected // constructors. return new RuntimeResourceSet(file); } else { Object[] args = new Object[1]; args[0] = file; try { return (ResourceSet)Activator.CreateInstance(_mediator.UserResourceSet, args); } catch (MissingMethodException e) { throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_ResMgrBadResSet_Type", _mediator.UserResourceSet.AssemblyQualifiedName), e); } } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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