FileBasedResourceGroveler.cs

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using System.Collections.Generic;
using System.Globalization;
using System.IO;
 
namespace System.Resources;
 
internal sealed class FileBasedResourceGroveler : IResourceGroveler
{
    private readonly ResourceManager.ResourceManagerMediator _mediator;
 
    public FileBasedResourceGroveler(ResourceManager.ResourceManagerMediator mediator)
    {
        _mediator = mediator;
    }
 
    public ResourceSet GrovelForResourceSet(CultureInfo culture, Dictionary<string, ResourceSet> localResourceSets, bool tryParents, bool createIfNotExists)
    {
        ResourceSet result = null;
        string resourceFileName = _mediator.GetResourceFileName(culture);
        string text = FindResourceFile(culture, resourceFileName);
        if (text == null)
        {
            if (tryParents && culture.HasInvariantCultureName)
            {
                string value = ((_mediator.LocationInfo == null) ? "<null>" : _mediator.LocationInfo.FullName);
                throw new MissingManifestResourceException($"{SR.MissingManifestResource_NoNeutralDisk}{"\r\n"}baseName: {_mediator.BaseNameField}  locationInfo: {value}  fileName: {_mediator.GetResourceFileName(culture)}");
            }
        }
        else
        {
            result = CreateResourceSet(text);
        }
        return result;
    }
 
    private string FindResourceFile(CultureInfo culture, string fileName)
    {
        if (_mediator.ModuleDir != null)
        {
            string text = Path.Combine(_mediator.ModuleDir, fileName);
            if (File.Exists(text))
            {
                return text;
            }
        }
        if (File.Exists(fileName))
        {
            return fileName;
        }
        return null;
    }
 
    private ResourceSet CreateResourceSet(string file)
    {
        if (_mediator.UserResourceSet == null)
        {
            return new RuntimeResourceSet(file);
        }
        object[] args = new object[1] { file };
        try
        {
            return (ResourceSet)Activator.CreateInstance(_mediator.UserResourceSet, args);
        }
        catch (MissingMethodException innerException)
        {
            throw new InvalidOperationException(SR.Format(SR.InvalidOperation_ResMgrBadResSet_Type, _mediator.UserResourceSet.AssemblyQualifiedName), innerException);
        }
    }
}