jellyfin/MediaBrowser.Controller/Localization/LocalizedStrings.cs

160 lines
5.3 KiB
C#

using MediaBrowser.Common.Localization;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Concurrent;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Xml.Serialization;
namespace MediaBrowser.Controller.Localization
{
/// <summary>
/// Class LocalizedStrings
/// </summary>
public class LocalizedStrings
{
/// <summary>
/// The logger
/// </summary>
static internal ILogger Logger { get; set; }
/// <summary>
/// The base prefix
/// </summary>
public const string BasePrefix = "base-";
/// <summary>
/// The local strings
/// </summary>
protected ConcurrentDictionary<string, string> LocalStrings = new ConcurrentDictionary<string, string>();
/// <summary>
/// The _instance
/// </summary>
private static LocalizedStrings _instance;
/// <summary>
/// Gets the instance.
/// </summary>
/// <value>The instance.</value>
public static LocalizedStrings Instance { get { return _instance ?? (_instance = new LocalizedStrings()); } }
/// <summary>
/// Initializes a new instance of the <see cref="LocalizedStrings" /> class.
/// </summary>
public LocalizedStrings()
{
foreach (var stringObject in Kernel.Instance.StringFiles)
{
AddStringData(LoadFromFile(GetFileName(stringObject),stringObject.GetType()));
}
}
/// <summary>
/// Gets the name of the file.
/// </summary>
/// <param name="stringObject">The string object.</param>
/// <returns>System.String.</returns>
protected string GetFileName(LocalizedStringData stringObject)
{
var path = Kernel.Instance.ApplicationPaths.LocalizationPath;
var name = Path.Combine(path, stringObject.Prefix + "strings-" + CultureInfo.CurrentCulture + ".xml");
if (File.Exists(name))
{
return name;
}
name = Path.Combine(path, stringObject.Prefix + "strings-" + CultureInfo.CurrentCulture.Parent + ".xml");
if (File.Exists(name))
{
return name;
}
//just return default
return Path.Combine(path, stringObject.Prefix + "strings-en.xml");
}
/// <summary>
/// Loads from file.
/// </summary>
/// <param name="file">The file.</param>
/// <param name="t">The t.</param>
/// <returns>LocalizedStringData.</returns>
protected LocalizedStringData LoadFromFile(string file, Type t)
{
var xs = new XmlSerializer(t);
var strings = (LocalizedStringData)Activator.CreateInstance(t);
strings.FileName = file;
Logger.Info("Using String Data from {0}", file);
if (File.Exists(file))
{
using (var fs = new FileStream(file, FileMode.Open, FileAccess.Read))
{
strings = (LocalizedStringData)xs.Deserialize(fs);
}
}
else
{
strings.Save(); //brand new - save it
}
if (strings.ThisVersion != strings.Version && file.ToLower().Contains("-en.xml"))
{
//only re-save the english version as that is the one defined internally
strings = new BaseStrings {FileName = file};
strings.Save();
}
return strings;
}
/// <summary>
/// Adds the string data.
/// </summary>
/// <param name="stringData">The string data.</param>
public void AddStringData(object stringData )
{
//translate our object definition into a dictionary for lookups
// and a reverse dictionary so we can lookup keys by value
foreach (var field in stringData.GetType().GetFields().Where(f => f != null && f.FieldType == typeof(string)))
{
string value;
try
{
value = field.GetValue(stringData) as string;
}
catch (TargetException ex)
{
Logger.ErrorException("Error getting value for field: {0}", ex, field.Name);
continue;
}
catch (FieldAccessException ex)
{
Logger.ErrorException("Error getting value for field: {0}", ex, field.Name);
continue;
}
catch (NotSupportedException ex)
{
Logger.ErrorException("Error getting value for field: {0}", ex, field.Name);
continue;
}
LocalStrings.TryAdd(field.Name, value);
}
}
/// <summary>
/// Gets the string.
/// </summary>
/// <param name="key">The key.</param>
/// <returns>System.String.</returns>
public string GetString(string key)
{
string value;
LocalStrings.TryGetValue(key, out value);
return value;
}
}
}