Introduce ILocalizableStringSerializer

framework/src/Volo.Abp.Localization.Abstractions/Volo/Abp/Localization/LocalizableString.cs

@@ -12,7 +12,7 @@ public class LocalizableString : ILocalizableString
     [NotNull]
     public string Name { get; }
 
-    public LocalizableString(Type resourceType, [NotNull] string name)
+    public LocalizableString([CanBeNull] Type resourceType, [NotNull] string name)
     {
         Name = Check.NotNullOrEmpty(name, nameof(name));
         ResourceType = resourceType;

framework/src/Volo.Abp.Localization/Volo/Abp/Localization/ILocalizableStringSerializer.cs

@@ -0,0 +1,8 @@
+namespace Volo.Abp.Localization;
+
+public interface ILocalizableStringSerializer
+{
+    string Serialize(ILocalizableString localizableString);
+    
+    ILocalizableString Deserialize(string value);
+}

framework/src/Volo.Abp.Localization/Volo/Abp/Localization/LocalizableStringSerializer.cs

@@ -0,0 +1,64 @@
+using System;
+using Microsoft.Extensions.Options;
+using Volo.Abp.DependencyInjection;
+
+namespace Volo.Abp.Localization;
+
+public class LocalizableStringSerializer : ILocalizableStringSerializer, ITransientDependency
+{
+    protected AbpLocalizationOptions LocalizationOptions { get; }
+
+    public LocalizableStringSerializer(IOptions<AbpLocalizationOptions> localizationOptions)
+    {
+        LocalizationOptions = localizationOptions.Value;
+    }
+
+    public virtual string Serialize(ILocalizableString localizableString)
+    {
+        if (localizableString is LocalizableString realLocalizableString)
+        {
+            return $"L:{LocalizationResourceNameAttribute.GetName(realLocalizableString.ResourceType)},{realLocalizableString.Name}";
+        }
+
+        if (localizableString is FixedLocalizableString fixedLocalizableString)
+        {
+            return $"F:{fixedLocalizableString.Value}";
+        }
+
+        throw new AbpException($"Unknown {nameof(ILocalizableString)} type: {localizableString.GetType().FullName}");
+    }
+
+    public virtual ILocalizableString Deserialize(string value)
+    {
+        if (value.IsNullOrEmpty() ||
+            value.Length < 3 ||
+            value[1] != ':')
+        {
+            return new FixedLocalizableString(value);
+        }
+        
+        var type = value[0];
+        switch (type)
+        {
+            case 'F':
+                return new FixedLocalizableString(value.Substring(2));
+            case 'L':
+                var commaPosition = value.IndexOf(',', 2);
+                if (commaPosition == -1)
+                {
+                    throw new AbpException("Invalid LocalizableString value: " + value);
+                }
+                
+                var resourceName = value.Substring(2, commaPosition - 2);
+                var name = value.Substring(commaPosition + 1);
+                var resourceType = LocalizationOptions.Resources.GetOrNull(resourceName)?.ResourceType;
+                    
+                return new LocalizableString(
+                    resourceType,
+                    name
+                );
+            default:
+                return new FixedLocalizableString(value);
+        }
+    }
+}