public string[] GetGlobalFileLocations(CultureInfo culture)
{
var cultureSuffix = "." + culture.Name;
cultureSuffix = cultureSuffix == "." ? string.Empty : cultureSuffix;
if (LocalizerUtil.IsChildCulture(DefaultCulture.UICulture, culture) || LocalizerUtil.IsChildCulture(culture, DefaultCulture.UICulture))
{
cultureSuffix = string.Empty;
}
var cacheName = "global";
cacheName += string.IsNullOrEmpty(cultureSuffix) ? ".default" : cultureSuffix;
string root = _app.ContentRootPath;
if (!string.IsNullOrEmpty(ResourceRelativePath))
{
root = Path.Combine(root, ResourceRelativePath.Trim('/', '\\'));
}
var resourceBaseName = GlobalName;
var resourceFileLocations = LocalizerUtil.ExpandPaths(resourceBaseName, _app.ApplicationName).ToList();
return(resourceFileLocations.Select(resourceFileLocation => resourceFileLocation + cultureSuffix + ".json")
.Select(resourcePath => Path.Combine(root, resourcePath))
.ToArray());
}
public JsonStringLocalizer(
string resourceBaseName,
IHostingEnvironment env,
JsonGlobalResources globalResources,
RequestCulture defaultCulture,
IActionContextAccessor actionContextAccessor,
JsonLocalizationOptions options,
ILoggerFactory loggerFactory)
{
_options = options ?? throw new ArgumentNullException(nameof(options));
_env = env ?? throw new ArgumentNullException(nameof(env));
GlobalResources = globalResources ?? throw new ArgumentNullException(nameof(globalResources));
DefaultCulture = defaultCulture ?? throw new ArgumentNullException(nameof(defaultCulture));
_actionContextAccessor = actionContextAccessor ?? throw new ArgumentNullException(nameof(actionContextAccessor));
_logger = loggerFactory.CreateLogger <JsonStringLocalizer <T> >();
_resourcesRelativePath = _options.ResourcesPath ?? string.Empty;
if (!string.IsNullOrEmpty(_resourcesRelativePath))
{
_resourcesRelativePath = _resourcesRelativePath.Replace(Path.AltDirectorySeparatorChar, '.').Replace(Path.DirectorySeparatorChar, '.');
}
ResourceFileLocations = LocalizerUtil.ExpandPaths(resourceBaseName).ToList();
}
public string[] GetAreaFileLocations(CultureInfo culture, string areaName)
{
if (string.IsNullOrEmpty(areaName?.Trim()))
{
throw new ArgumentNullException(nameof(areaName));
}
var cultureSuffix = "." + culture.Name;
cultureSuffix = cultureSuffix == "." ? string.Empty : cultureSuffix;
if (LocalizerUtil.IsChildCulture(DefaultCulture.UICulture, culture) || LocalizerUtil.IsChildCulture(culture, DefaultCulture.UICulture))
{
cultureSuffix = string.Empty;
}
var areaSuffix = $".{areaName}";
var cacheName = $"{AreaName}{areaSuffix}";
cacheName += string.IsNullOrEmpty(cultureSuffix) ? ".default" : cultureSuffix;
string root = _app.ContentRootPath;
if (!string.IsNullOrEmpty(ResourceRelativePath))
{
root = Path.Combine(root, ResourceRelativePath.Trim('/', '\\'));
}
var resourceBaseName = AreaName;
var resourceFileLocations = LocalizerUtil.ExpandPaths(resourceBaseName, _app.ApplicationName).ToList();
return(resourceFileLocations.Select(resourceFileLocation => resourceFileLocation + areaSuffix + cultureSuffix + ".json")
.Select(resourcePath => Path.Combine(root, resourcePath))
.ToArray());
}
private JsonDocument GetResourceObject(CultureInfo currentCulture)
{
if (currentCulture == null)
{
throw new ArgumentNullException(nameof(currentCulture));
}
var cultureSuffix = "." + currentCulture.Name;
cultureSuffix = cultureSuffix == "." ? string.Empty : cultureSuffix;
if (LocalizerUtil.IsChildCulture(DefaultCulture.UICulture, currentCulture) || LocalizerUtil.IsChildCulture(currentCulture, DefaultCulture.UICulture))
{
cultureSuffix = string.Empty;
}
var cacheKey = string.IsNullOrEmpty(cultureSuffix) ? "default" : cultureSuffix;
var lazyJsonDocumentGetter = new Lazy <JsonDocument>(
() =>
{
_logger.LogDebug_Localizer($"Resource file content not found in cache ({cacheKey}), try to load from file.");
string root = _env.ContentRootPath;
if (!string.IsNullOrEmpty(_resourcesRelativePath))
{
root = Path.Combine(root, _resourcesRelativePath.Trim('/', '\\'));
}
_logger.LogDebug_Localizer($"Looking for resource files in {root}");
// First attempt to find a resource file location that exists.
string resourcePath = null;
foreach (var resourceFileLocation in ResourceFileLocations)
{
resourcePath = resourceFileLocation + cultureSuffix + ".json";
resourcePath = Path.Combine(root, resourcePath);
if (File.Exists(resourcePath))
{
_logger.LogDebug_Localizer($"Resource file found: {resourcePath}");
break;
}
else
{
_logger.LogDebug_Localizer($"Resource file not found: {resourcePath}");
resourcePath = null;
}
}
if (resourcePath == null)
{
_logger.LogWarning_Localizer($"There is no resource file found for {cacheKey}");
return(null);
}
// Found a resource file path: attempt to parse it into a JsonDocument.
try
{
var resourceFileStream = new FileStream(resourcePath, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.Asynchronous | FileOptions.SequentialScan);
using (resourceFileStream)
{
var content = JsonDocument.Parse(resourceFileStream);
_logger.LogInformation_Localizer($"Resource file content loaded: {resourcePath}");
return(content);
}
}
catch (Exception ex)
{
_logger.LogError_Localizer(ex, $"Error while loading resource file: {ex.Message} ({resourcePath})");
return(null);
}
}, LazyThreadSafetyMode.ExecutionAndPublication);
_logger.LogInformation_Localizer($"Trying to load resource file content from cache {cacheKey}.");
lazyJsonDocumentGetter = _resourceObjectCache.GetOrAdd(cacheKey, lazyJsonDocumentGetter);
var resourceObject = lazyJsonDocumentGetter.Value;
return(resourceObject);
}
public JsonDocument GetAreaResources(CultureInfo culture, string areaName)
{
if (string.IsNullOrEmpty(areaName?.Trim()))
{
throw new ArgumentNullException(nameof(areaName));
}
var cultureSuffix = "." + culture.Name;
cultureSuffix = cultureSuffix == "." ? string.Empty : cultureSuffix;
if (LocalizerUtil.IsChildCulture(DefaultCulture.UICulture, culture) || LocalizerUtil.IsChildCulture(culture, DefaultCulture.UICulture))
{
cultureSuffix = string.Empty;
}
var areaSuffix = $".{areaName}";
var cacheName = $"{AreaName}{areaSuffix}";
cacheName += string.IsNullOrEmpty(cultureSuffix) ? ".default" : cultureSuffix;
var lazyJObjectGetter = new Lazy <JsonDocument>(
() =>
{
_logger.LogDebug_Localizer($"Resource file content not found in cache ({cacheName}), try to load from file.");
string root = _app.ContentRootPath;
if (!string.IsNullOrEmpty(ResourceRelativePath))
{
root = Path.Combine(root, ResourceRelativePath.Trim('/', '\\'));
}
_logger.LogDebug_Localizer($"Looking for resource files in {root}");
var resourceBaseName = AreaName;
var resourceFileLocations = LocalizerUtil.ExpandPaths(resourceBaseName, _app.ApplicationName).ToList();
string resourcePath = null;
foreach (var resourceFileLocation in resourceFileLocations)
{
resourcePath = resourceFileLocation + areaSuffix + cultureSuffix + ".json";
resourcePath = Path.Combine(root, resourcePath);
if (File.Exists(resourcePath))
{
_logger.LogDebug_Localizer($"Resource file found: {resourcePath}");
break;
}
else
{
_logger.LogDebug_Localizer($"Resource file not found: {resourcePath}");
resourcePath = null;
}
}
if (resourcePath == null)
{
_logger.LogWarning_Localizer($"There is no resource file found for {resourceBaseName}");
return(null);
}
try
{
var resourceFileStream = new FileStream(resourcePath, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.Asynchronous | FileOptions.SequentialScan);
using (resourceFileStream)
{
var content = JsonDocument.Parse(resourceFileStream);
_logger.LogInformation_Localizer($"Resource file content loaded: {resourcePath}");
return(content);
}
}
catch (Exception ex)
{
_logger.LogError_Localizer(ex, $"Error while loading resource file: {ex.Message} ({resourcePath})");
return(null);
}
}, LazyThreadSafetyMode.ExecutionAndPublication);
_logger.LogInformation_Localizer($"Trying to load resource file content from cache {cacheName}.");
lazyJObjectGetter = _resources.GetOrAdd(cacheName, lazyJObjectGetter);
return(lazyJObjectGetter.Value);
}
