Implement the ICacheSupportsMultipleItems for the AbpRedisCache

framework/src/Volo.Abp.Caching.StackExchangeRedis/Microsoft/Extensions/Caching/StackExchangeRedis/RedisCache.cs

@@ -0,0 +1,496 @@
+// This software is part of the DOTNET extensions
+// Copyright (c) .NET Foundation and Contributors
+// https://dotnet.microsoft.com/
+//
+// All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Caching.Distributed;
+using Microsoft.Extensions.Options;
+using StackExchange.Redis;
+
+namespace Microsoft.Extensions.Caching.StackExchangeRedis
+{
+    public class RedisCache : IDistributedCache, IDisposable
+    {
+        // KEYS[1] = = key
+        // ARGV[1] = absolute-expiration - ticks as long (-1 for none)
+        // ARGV[2] = sliding-expiration - ticks as long (-1 for none)
+        // ARGV[3] = relative-expiration (long, in seconds, -1 for none) - Min(absolute-expiration - Now, sliding-expiration)
+        // ARGV[4] = data - byte[]
+        // this order should not change LUA script depends on it
+        protected const string SetScript = (@"
+                redis.call('HMSET', KEYS[1], 'absexp', ARGV[1], 'sldexp', ARGV[2], 'data', ARGV[4])
+                if ARGV[3] ~= '-1' then
+                  redis.call('EXPIRE', KEYS[1], ARGV[3])
+                end
+                return 1");
+
+        protected const string AbsoluteExpirationKey = "absexp";
+        protected const string SlidingExpirationKey = "sldexp";
+        protected const string DataKey = "data";
+        protected const long NotPresent = -1;
+
+        protected volatile ConnectionMultiplexer Connection;
+        protected IDatabase Cache;
+
+        protected readonly RedisCacheOptions Options;
+        protected readonly string Instance;
+
+        protected readonly SemaphoreSlim ConnectionLock = new SemaphoreSlim(initialCount: 1, maxCount: 1);
+
+        public RedisCache(IOptions<RedisCacheOptions> optionsAccessor)
+        {
+            if (optionsAccessor == null)
+            {
+                throw new ArgumentNullException(nameof(optionsAccessor));
+            }
+
+            Options = optionsAccessor.Value;
+
+            // This allows partitioning a single backend cache for use with multiple apps/services.
+            Instance = Options.InstanceName ?? string.Empty;
+        }
+
+        public virtual byte[] Get(string key)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            return GetAndRefresh(key, getData: true);
+        }
+
+        public virtual async Task<byte[]> GetAsync(
+            string key,
+            CancellationToken token = default)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            token.ThrowIfCancellationRequested();
+
+            return await GetAndRefreshAsync(key, getData: true, token: token);
+        }
+
+        public virtual void Set(
+            string key,
+            byte[] value,
+            DistributedCacheEntryOptions options)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            if (value == null)
+            {
+                throw new ArgumentNullException(nameof(value));
+            }
+
+            if (options == null)
+            {
+                throw new ArgumentNullException(nameof(options));
+            }
+
+            Connect();
+
+            var creationTime = DateTimeOffset.UtcNow;
+
+            var absoluteExpiration = GetAbsoluteExpiration(creationTime, options);
+
+            Cache.ScriptEvaluate(SetScript, new RedisKey[] {Instance + key},
+                new RedisValue[]
+                {
+                    absoluteExpiration?.Ticks ?? NotPresent,
+                    options.SlidingExpiration?.Ticks ?? NotPresent,
+                    GetExpirationInSeconds(creationTime, absoluteExpiration, options) ?? NotPresent,
+                    value
+                });
+        }
+
+        public virtual async Task SetAsync(
+            string key,
+            byte[] value,
+            DistributedCacheEntryOptions options,
+            CancellationToken token = default)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            if (value == null)
+            {
+                throw new ArgumentNullException(nameof(value));
+            }
+
+            if (options == null)
+            {
+                throw new ArgumentNullException(nameof(options));
+            }
+
+            token.ThrowIfCancellationRequested();
+
+            await ConnectAsync(token);
+
+            var creationTime = DateTimeOffset.UtcNow;
+
+            var absoluteExpiration = GetAbsoluteExpiration(creationTime, options);
+
+            await Cache.ScriptEvaluateAsync(SetScript, new RedisKey[] {Instance + key},
+                new RedisValue[]
+                {
+                    absoluteExpiration?.Ticks ?? NotPresent,
+                    options.SlidingExpiration?.Ticks ?? NotPresent,
+                    GetExpirationInSeconds(creationTime, absoluteExpiration, options) ?? NotPresent,
+                    value
+                });
+        }
+
+        public virtual void Refresh(string key)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            GetAndRefresh(key, getData: false);
+        }
+
+        public virtual async Task RefreshAsync(
+            string key,
+            CancellationToken token = default)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            token.ThrowIfCancellationRequested();
+
+            await GetAndRefreshAsync(key, getData: false, token: token);
+        }
+
+        protected virtual void Connect()
+        {
+            if (Cache != null)
+            {
+                return;
+            }
+
+            ConnectionLock.Wait();
+            try
+            {
+                if (Cache == null)
+                {
+                    if (Options.ConfigurationOptions != null)
+                    {
+                        Connection = ConnectionMultiplexer.Connect(Options.ConfigurationOptions);
+                    }
+                    else
+                    {
+                        Connection = ConnectionMultiplexer.Connect(Options.Configuration);
+                    }
+
+                    Cache = Connection.GetDatabase();
+                }
+            }
+            finally
+            {
+                ConnectionLock.Release();
+            }
+        }
+
+        protected virtual async Task ConnectAsync(CancellationToken token = default)
+        {
+            token.ThrowIfCancellationRequested();
+
+            if (Cache != null)
+            {
+                return;
+            }
+
+            await ConnectionLock.WaitAsync(token);
+            try
+            {
+                if (Cache == null)
+                {
+                    if (Options.ConfigurationOptions != null)
+                    {
+                        Connection = await ConnectionMultiplexer.ConnectAsync(Options.ConfigurationOptions);
+                    }
+                    else
+                    {
+                        Connection = await ConnectionMultiplexer.ConnectAsync(Options.Configuration);
+                    }
+
+                    Cache = Connection.GetDatabase();
+                }
+            }
+            finally
+            {
+                ConnectionLock.Release();
+            }
+        }
+
+        protected virtual byte[] GetAndRefresh(string key, bool getData)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            Connect();
+
+            // This also resets the LRU status as desired.
+            // TODO: Can this be done in one operation on the server side? Probably, the trick would just be the DateTimeOffset math.
+            RedisValue[] results;
+            if (getData)
+            {
+                results = Cache.HashMemberGet(Instance + key, AbsoluteExpirationKey, SlidingExpirationKey, DataKey);
+            }
+            else
+            {
+                results = Cache.HashMemberGet(Instance + key, AbsoluteExpirationKey, SlidingExpirationKey);
+            }
+
+            // TODO: Error handling
+            if (results.Length >= 2)
+            {
+                MapMetadata(results, out DateTimeOffset? absExpr, out TimeSpan? sldExpr);
+                Refresh(key, absExpr, sldExpr);
+            }
+
+            if (results.Length >= 3 && results[2].HasValue)
+            {
+                return results[2];
+            }
+
+            return null;
+        }
+
+        protected virtual async Task<byte[]> GetAndRefreshAsync(
+            string key,
+            bool getData,
+            CancellationToken token = default)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            token.ThrowIfCancellationRequested();
+
+            await ConnectAsync(token);
+
+            // This also resets the LRU status as desired.
+            // TODO: Can this be done in one operation on the server side? Probably, the trick would just be the DateTimeOffset math.
+            RedisValue[] results;
+            if (getData)
+            {
+                results = await Cache.HashMemberGetAsync(Instance + key, AbsoluteExpirationKey, SlidingExpirationKey,
+                    DataKey);
+            }
+            else
+            {
+                results = await Cache.HashMemberGetAsync(Instance + key, AbsoluteExpirationKey, SlidingExpirationKey);
+            }
+
+            // TODO: Error handling
+            if (results.Length >= 2)
+            {
+                MapMetadata(results, out DateTimeOffset? absExpr, out TimeSpan? sldExpr);
+                await RefreshAsync(key, absExpr, sldExpr, token);
+            }
+
+            if (results.Length >= 3 && results[2].HasValue)
+            {
+                return results[2];
+            }
+
+            return null;
+        }
+
+        public virtual void Remove(string key)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            Connect();
+
+            Cache.KeyDelete(Instance + key);
+            // TODO: Error handling
+        }
+
+        public virtual async Task RemoveAsync(
+            string key,
+            CancellationToken token = default)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            await ConnectAsync(token);
+
+            await Cache.KeyDeleteAsync(Instance + key);
+            // TODO: Error handling
+        }
+
+        protected virtual void MapMetadata(
+            RedisValue[] results,
+            out DateTimeOffset? absoluteExpiration,
+            out TimeSpan? slidingExpiration)
+        {
+            absoluteExpiration = null;
+            slidingExpiration = null;
+            var absoluteExpirationTicks = (long?) results[0];
+            if (absoluteExpirationTicks.HasValue && absoluteExpirationTicks.Value != NotPresent)
+            {
+                absoluteExpiration = new DateTimeOffset(absoluteExpirationTicks.Value, TimeSpan.Zero);
+            }
+
+            var slidingExpirationTicks = (long?) results[1];
+            if (slidingExpirationTicks.HasValue && slidingExpirationTicks.Value != NotPresent)
+            {
+                slidingExpiration = new TimeSpan(slidingExpirationTicks.Value);
+            }
+        }
+
+        protected virtual void Refresh(
+            string key,
+            DateTimeOffset? absExpr,
+            TimeSpan? sldExpr)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            // Note Refresh has no effect if there is just an absolute expiration (or neither).
+            TimeSpan? expr = null;
+            if (sldExpr.HasValue)
+            {
+                if (absExpr.HasValue)
+                {
+                    var relExpr = absExpr.Value - DateTimeOffset.Now;
+                    expr = relExpr <= sldExpr.Value ? relExpr : sldExpr;
+                }
+                else
+                {
+                    expr = sldExpr;
+                }
+
+                Cache.KeyExpire(Instance + key, expr);
+                // TODO: Error handling
+            }
+        }
+
+        protected virtual async Task RefreshAsync(
+            string key,
+            DateTimeOffset? absExpr,
+            TimeSpan? sldExpr,
+            CancellationToken token = default)
+        {
+            if (key == null)
+            {
+                throw new ArgumentNullException(nameof(key));
+            }
+
+            token.ThrowIfCancellationRequested();
+
+            // Note Refresh has no effect if there is just an absolute expiration (or neither).
+            TimeSpan? expr = null;
+            if (sldExpr.HasValue)
+            {
+                if (absExpr.HasValue)
+                {
+                    var relExpr = absExpr.Value - DateTimeOffset.Now;
+                    expr = relExpr <= sldExpr.Value ? relExpr : sldExpr;
+                }
+                else
+                {
+                    expr = sldExpr;
+                }
+
+                await Cache.KeyExpireAsync(Instance + key, expr);
+                // TODO: Error handling
+            }
+        }
+
+        protected static long? GetExpirationInSeconds(
+            DateTimeOffset creationTime,
+            DateTimeOffset? absoluteExpiration,
+            DistributedCacheEntryOptions options)
+        {
+            if (absoluteExpiration.HasValue && options.SlidingExpiration.HasValue)
+            {
+                return (long) Math.Min(
+                    (absoluteExpiration.Value - creationTime).TotalSeconds,
+                    options.SlidingExpiration.Value.TotalSeconds);
+            }
+            else if (absoluteExpiration.HasValue)
+            {
+                return (long) (absoluteExpiration.Value - creationTime).TotalSeconds;
+            }
+            else if (options.SlidingExpiration.HasValue)
+            {
+                return (long) options.SlidingExpiration.Value.TotalSeconds;
+            }
+
+            return null;
+        }
+
+        protected static DateTimeOffset? GetAbsoluteExpiration(
+            DateTimeOffset creationTime,
+            DistributedCacheEntryOptions options)
+        {
+            if (options.AbsoluteExpiration.HasValue && options.AbsoluteExpiration <= creationTime)
+            {
+                throw new ArgumentOutOfRangeException(
+                    nameof(DistributedCacheEntryOptions.AbsoluteExpiration),
+                    options.AbsoluteExpiration.Value,
+                    "The absolute expiration value must be in the future.");
+            }
+
+            var absoluteExpiration = options.AbsoluteExpiration;
+            if (options.AbsoluteExpirationRelativeToNow.HasValue)
+            {
+                absoluteExpiration = creationTime + options.AbsoluteExpirationRelativeToNow;
+            }
+
+            return absoluteExpiration;
+        }
+
+        public virtual void Dispose()
+        {
+            Connection?.Close();
+        }
+    }
+}

framework/src/Volo.Abp.Caching.StackExchangeRedis/Microsoft/Extensions/Caching/StackExchangeRedis/RedisExtensions.cs

@@ -0,0 +1,70 @@
+// This software is part of the DOTNET extensions
+// Copyright (c) .NET Foundation and Contributors
+// https://dotnet.microsoft.com/
+//
+// All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+using System.Threading.Tasks;
+using StackExchange.Redis;
+
+namespace Microsoft.Extensions.Caching.StackExchangeRedis
+{
+    internal static class RedisExtensions
+    {
+        private const string HmGetScript = (@"return redis.call('HMGET', KEYS[1], unpack(ARGV))");
+
+        internal static RedisValue[] HashMemberGet(this IDatabase cache, string key, params string[] members)
+        {
+            var result = cache.ScriptEvaluate(
+                HmGetScript,
+                new RedisKey[] { key },
+                GetRedisMembers(members));
+
+            // TODO: Error checking?
+            return (RedisValue[])result;
+        }
+
+        internal static async Task<RedisValue[]> HashMemberGetAsync(
+            this IDatabase cache,
+            string key,
+            params string[] members)
+        {
+            var result = await cache.ScriptEvaluateAsync(
+                HmGetScript,
+                new RedisKey[] { key },
+                GetRedisMembers(members)).ConfigureAwait(false);
+
+            // TODO: Error checking?
+            return (RedisValue[])result;
+        }
+
+        private static RedisValue[] GetRedisMembers(params string[] members)
+        {
+            var redisMembers = new RedisValue[members.Length];
+            for (int i = 0; i < members.Length; i++)
+            {
+                redisMembers[i] = (RedisValue)members[i];
+            }
+
+            return redisMembers;
+        }
+    }
+}

framework/src/Volo.Abp.Caching.StackExchangeRedis/Volo/Abp/Caching/StackExchangeRedis/AbpRedisCache.cs

@@ -1,7 +1,9 @@
 using System;
-using System.Reflection;
+using System.Collections.Generic;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
+using Microsoft.Extensions.Caching.Distributed;
 using Microsoft.Extensions.Caching.StackExchangeRedis;
 using Microsoft.Extensions.Options;
 using StackExchange.Redis;
@@ -10,40 +12,179 @@ using Volo.Abp.DependencyInjection;
 namespace Volo.Abp.Caching.StackExchangeRedis
 {
     [DisableConventionalRegistration]
-    public class AbpRedisCache : RedisCache
+    public class AbpRedisCache : RedisCache, ICacheSupportsMultipleItems
     {
-        private static readonly FieldInfo RedisDatabaseField;
-        private static readonly MethodInfo ConnectMethod;
-        private static readonly MethodInfo ConnectAsyncMethod;
+        public AbpRedisCache(IOptions<RedisCacheOptions> optionsAccessor)
+            : base(optionsAccessor)
+        {
+        }
 
-        protected IDatabase RedisDatabase => RedisDatabaseField.GetValue(this) as IDatabase;
+        public byte[][] GetMany(
+            IEnumerable<string> keys)
+        {
+            keys = Check.NotNull(keys, nameof(keys));
 
-        static AbpRedisCache()
+            return GetAndRefreshMany(keys, true);
+        }
+
+        public async Task<byte[][]> GetManyAsync(
+            IEnumerable<string> keys,
+            CancellationToken token = default)
         {
-            RedisDatabaseField = typeof(RedisCache)
-                .GetField("_cache", BindingFlags.Instance | BindingFlags.NonPublic);
-            
-            ConnectMethod = typeof(RedisCache)
-                .GetMethod("Connect", BindingFlags.Instance | BindingFlags.NonPublic);
-            
-            ConnectAsyncMethod = typeof(RedisCache)
-                .GetMethod("ConnectAsync", BindingFlags.Instance | BindingFlags.NonPublic);
+            keys = Check.NotNull(keys, nameof(keys));
+
+            return await GetAndRefreshManyAsync(keys, true, token);
         }
 
-        public AbpRedisCache(IOptions<RedisCacheOptions> optionsAccessor)
-            : base(optionsAccessor)
+        public void SetMany(
+            IEnumerable<KeyValuePair<string, byte[]>> items,
+            DistributedCacheEntryOptions options)
+        {
+            Connect();
+
+            Task.WaitAll(PipelineSetMany(items, options));
+        }
+
+        public async Task SetManyAsync(
+            IEnumerable<KeyValuePair<string, byte[]>> items,
+            DistributedCacheEntryOptions options,
+            CancellationToken token = default)
+        {
+            token.ThrowIfCancellationRequested();
+
+            await ConnectAsync(token);
+
+            await Task.WhenAll(PipelineSetMany(items, options));
+        }
+
+        protected virtual byte[][] GetAndRefreshMany(
+            IEnumerable<string> keys,
+            bool getData)
+        {
+            Connect();
+
+            var keyArray = keys.Select(key => Instance + key).ToArray();
+            RedisValue[][] results;
+
+            if (getData)
+            {
+                results = Cache.HashMemberGetMany(keyArray, AbsoluteExpirationKey,
+                    SlidingExpirationKey, DataKey);
+            }
+            else
+            {
+                results = Cache.HashMemberGetMany(keyArray, AbsoluteExpirationKey,
+                    SlidingExpirationKey);
+            }
+
+            Task.WaitAll(GetAndRefreshMany(keyArray, results, out var bytes));
+
+            return bytes;
+        }
+
+        protected virtual async Task<byte[][]> GetAndRefreshManyAsync(
+            IEnumerable<string> keys,
+            bool getData,
+            CancellationToken token = default)
         {
-            
+            token.ThrowIfCancellationRequested();
+
+            await ConnectAsync(token);
+
+            var keyArray = keys.Select(key => Instance + key).ToArray();
+            RedisValue[][] results;
+
+            if (getData)
+            {
+                results = await Cache.HashMemberGetManyAsync(keyArray, AbsoluteExpirationKey,
+                    SlidingExpirationKey, DataKey);
+            }
+            else
+            {
+                results = await Cache.HashMemberGetManyAsync(keyArray, AbsoluteExpirationKey,
+                    SlidingExpirationKey);
+            }
+
+            await Task.WhenAll(GetAndRefreshMany(keyArray, results, out var bytes));
+
+            return bytes;
         }
 
-        protected virtual void Connect()
+        private Task[] GetAndRefreshMany(string[] keys, RedisValue[][] results, out byte[][] bytes)
         {
-            ConnectMethod.Invoke(this, Array.Empty<object>());
+            bytes = new byte[keys.Length][];
+            var tasks = new Task[keys.Length];
+            for (var i = 0; i < keys.Length; i++)
+            {
+                if (results[i].Length >= 2)
+                {
+                    MapMetadata(results[i], out DateTimeOffset? absExpr, out TimeSpan? sldExpr);
+                    tasks[i] = PipelineRefresh(keys[i], absExpr, sldExpr);
+                }
+
+                if (results[i].Length >= 3 && results[i][2].HasValue)
+                {
+                    bytes[i] = results[i][2];
+                }
+                else
+                {
+                    bytes[i] = null;
+                }
+            }
+
+            return tasks;
+        }
+
+        private Task PipelineRefresh(
+            string key,
+            DateTimeOffset? absExpr,
+            TimeSpan? sldExpr)
+        {
+            if (sldExpr.HasValue)
+            {
+                TimeSpan? expr;
+
+                if (absExpr.HasValue)
+                {
+                    var relExpr = absExpr.Value - DateTimeOffset.Now;
+                    expr = relExpr <= sldExpr.Value ? relExpr : sldExpr;
+                }
+                else
+                {
+                    expr = sldExpr;
+                }
+
+                return Cache.KeyExpireAsync(key, expr);
+            }
+
+            return Task.CompletedTask;
         }
 
-        protected virtual Task ConnectAsync(CancellationToken token = default)
+        private Task[] PipelineSetMany(
+            IEnumerable<KeyValuePair<string, byte[]>> items,
+            DistributedCacheEntryOptions options)
         {
-            return (Task) ConnectAsyncMethod.Invoke(this, new object[] {token});
+            items = Check.NotNull(items, nameof(items));
+            options = Check.NotNull(options, nameof(options));
+
+            var itemArray = items.ToArray();
+            var tasks = new Task[itemArray.Length];
+            var creationTime = DateTimeOffset.UtcNow;
+            var absoluteExpiration = GetAbsoluteExpiration(creationTime, options);
+
+            for (var i = 0; i < itemArray.Length; i++)
+            {
+                tasks[i] = Cache.ScriptEvaluateAsync(SetScript, new RedisKey[] {Instance + itemArray[i].Key},
+                    new RedisValue[]
+                    {
+                        absoluteExpiration?.Ticks ?? NotPresent,
+                        options.SlidingExpiration?.Ticks ?? NotPresent,
+                        GetExpirationInSeconds(creationTime, absoluteExpiration, options) ?? NotPresent,
+                        itemArray[i].Value
+                    });
+            }
+
+            return tasks;
         }
     }
-}
+}

framework/src/Volo.Abp.Caching.StackExchangeRedis/Volo/Abp/Caching/StackExchangeRedis/AbpRedisExtensions.cs

@@ -0,0 +1,42 @@
+using System.Linq;
+using System.Threading.Tasks;
+using StackExchange.Redis;
+
+namespace Volo.Abp.Caching.StackExchangeRedis
+{
+    public static class AbpRedisExtensions
+    {
+        private const string HmGetManyScript = (@"
+                                                local res = {};
+                                                for i , key in ipairs(KEYS) do
+                                                    res[#res+1] = redis.call('HMGET', key,unpack(ARGV))
+                                                end
+                                                return res");
+
+        public static RedisValue[][] HashMemberGetMany(
+            this IDatabase cache,
+            string[] keys,
+            params string[] members)
+        {
+            var results = cache.ScriptEvaluate(
+                HmGetManyScript,
+                keys.Select(key => (RedisKey) key).ToArray(),
+                members.Select(member => (RedisValue) member).ToArray());
+
+            return ((RedisResult[]) results).Select(result => (RedisValue[]) result).ToArray();
+        }
+
+        public static async Task<RedisValue[][]> HashMemberGetManyAsync(
+            this IDatabase cache,
+            string[] keys,
+            params string[] members)
+        {
+            var results = await cache.ScriptEvaluateAsync(
+                HmGetManyScript,
+                keys.Select(key => (RedisKey) key).ToArray(),
+                members.Select(member => (RedisValue) member).ToArray());
+
+            return ((RedisResult[]) results).Select(result => (RedisValue[]) result).ToArray();
+        }
+    }
+}