Extended Redis Cache Handle

ExtendedRedisCacheHandle.cs

public class ExtendedRedisCacheHandle : CacheManager.Redis.RedisCacheHandle<string>
{
    private const string BaseRegion = "Base";

    private readonly string _extraRegionName;

    public ExtendedRedisCacheHandle(ICacheManagerConfiguration managerConfiguration, CacheHandleConfiguration configuration,
        ILoggerFactory loggerFactory, ICacheSerializer serializer)
        : base(managerConfiguration, configuration, loggerFactory, serializer)
    {
        _extraRegionName = managerConfiguration.BackplaneChannelName ?? BaseRegion;
    }

    private string CreateRegion(string region = null)
    {
        if (string.IsNullOrEmpty(region))
            region = "base";

        return $"{_extraRegionName}_{region}";
    }

    protected override bool AddInternal(CacheItem<string> item)
    {
        var newItem = new CacheItem<string>(item.Key, CreateRegion(item.Region), item.Value, item.ExpirationMode, item.ExpirationTimeout);

        return base.AddInternal(newItem);
    }

    protected override bool AddInternalPrepared(CacheItem<string> item)
    {
        var newItem = new CacheItem<string>(item.Key, CreateRegion(item.Region), item.Value, item.ExpirationMode, item.ExpirationTimeout);

        return base.AddInternalPrepared(newItem);
    }

    protected override CacheItem<string> GetCacheItemInternal(string key, string region)
    {
        return base.GetCacheItemInternal(key, CreateRegion(region));
    }

    protected override CacheItem<string> GetCacheItemInternal(string key)
    {
        return base.GetCacheItemInternal(key, CreateRegion());
    }

    protected override void PutInternal(CacheItem<string> item)
    {
        var newItem = new CacheItem<string>(item.Key, CreateRegion(item.Region), item.Value, item.ExpirationMode, item.ExpirationTimeout);

        base.PutInternal(newItem);
    }

    protected override void PutInternalPrepared(CacheItem<string> item)
    {
        var newItem = new CacheItem<string>(item.Key, CreateRegion(item.Region), item.Value, item.ExpirationMode, item.ExpirationTimeout);

        base.PutInternalPrepared(newItem);
    }

    protected override bool RemoveInternal(string key)
    {
        return base.RemoveInternal(key, CreateRegion());
    }

    protected override bool RemoveInternal(string key, string region)
    {
        return base.RemoveInternal(key, CreateRegion(region));
    }

    public override void ClearRegion(string region)
    {
        base.ClearRegion(CreateRegion(region));
    }

    public override void Clear()
    {
        base.ClearRegion(CreateRegion());
    }
}