chore: 框架

Storage/Storage.Test/FileTest.cs

@@ -10,10 +10,10 @@ namespace LeanCloud.Test {
 
         [SetUp]
         public void SetUp() {
-            Utils.InitNorthChina();
+            //Utils.InitNorthChina();
             //Utils.InitEastChina();
             //Utils.InitOldEastChina();
-            //Utils.InitUS();
+            Utils.InitUS();
         }
 
         [Test, Order(0)]

Storage/Storage.Test/HelloTest.cs

@@ -0,0 +1,25 @@
+using NUnit.Framework;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using LeanCloud.Storage;
+
+namespace LeanCloud.Test {
+    public class HelloTest {
+        [SetUp]
+        public void SetUp() {
+            LeanCloud.Initialize("ikGGdRE2YcVOemAaRbgp1xGJ-gzGzoHsz", "NUKmuRbdAhg1vrb2wexYo1jo", "https://ikggdre2.lc-cn-n1-shared.com");
+            Logger.LogDelegate += Utils.Print;
+        }
+
+        [Test]
+        public async Task Run() {
+            Dictionary<string, object> parameters = new Dictionary<string, object> {
+                { "name", "world" }
+            };
+            Dictionary<string, object> response = await LCCloud.Run("hello", parameters);
+            string ret = response["result"] as string;
+            TestContext.WriteLine($"ret: {ret}");
+            Assert.AreEqual(ret, "hello, world");
+        }
+    }
+}

Storage/Storage/Internal/Codec/LCDecoder.cs

@@ -0,0 +1,77 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Object;
+
+namespace LeanCloud.Storage.Internal.Codec {
+    internal static class LCDecoder {
+        internal static object Decode(object obj) {
+            if (obj is IDictionary dict) {
+                if (dict.Contains("__type")) {
+                    string type = dict["__type"].ToString();
+                    if (type == "Date") {
+                        return DecodeDate(dict);
+                    } else if (type == "Bytes") {
+                        return DecodeBytes(dict);
+                    } else if (type == "Object") {
+                        return DecodeObject(dict);
+                    } else if (type == "Pointer") {
+                        return DecodeObject(dict);
+                    } else if (type == "Relation") {
+                        return DecodeRelation(dict);
+                    } else if (type == "GeoPoint") {
+                        return DecodeGeoPoint(dict);
+                    }
+                }
+                Dictionary<string, object> d = new Dictionary<string, object>();
+                foreach (KeyValuePair<string, object> kv in dict) {
+                    string key = kv.Key;
+                    object value = kv.Value;
+                    d[key] = Decode(value); 
+                }
+                return d;
+            } else if (obj is IList list) {
+                List<object> l = new List<object>();
+                foreach (object o in list) {
+                    object v = Decode(o);
+                    l.Add(v);
+                }
+            }
+            return obj;
+        }
+
+        static DateTime DecodeDate(IDictionary dict) {
+            string str = dict["iso"].ToString();
+            DateTime dateTime = DateTime.Parse(str);
+            return dateTime.ToLocalTime();
+        }
+
+        static byte[] DecodeBytes(IDictionary dict) {
+            string str = dict["base64"].ToString();
+            byte[] bytes = Convert.FromBase64String(str);
+            return bytes;
+        }
+
+        static LCObject DecodeObject(IDictionary dict) {
+            string className = dict["className"].ToString();
+            LCObject obj = LCObject.Create(className);
+            LCObjectData objectData = LCObjectData.Decode(dict as Dictionary<string, object>);
+            // TODO merge
+
+            return obj;
+        }
+
+        static LCRelation<LCObject> DecodeRelation(IDictionary dict) {
+            LCRelation<LCObject> relation = new LCRelation<LCObject>();
+            relation.targetClass = dict["className"].ToString();
+            return relation;
+        }
+
+        static LCGeoPoint DecodeGeoPoint(IDictionary data) {
+            double latitude = double.Parse(data["latitude"].ToString());
+            double longitude = double.Parse(data["longitude"].ToString());
+            LCGeoPoint geoPoint = new LCGeoPoint(latitude, longitude);
+            return geoPoint;
+        }
+    }
+}

Storage/Storage/Internal/Codec/LCEncoder.cs

@@ -0,0 +1,115 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Operation;
+using LeanCloud.Storage.Internal.Query;
+
+namespace LeanCloud.Storage.Internal.Codec {
+    internal static class LCEncoder {
+        internal static object Encode(object obj) {
+            if (obj is DateTime dateTime) {
+                return EncodeDateTime(dateTime);
+            } else if (obj is byte[] bytes) {
+                return EncodeBytes(bytes);
+            } else if (obj is IList list) {
+                return EncodeList(list);
+            } else if (obj is IDictionary dict) {
+                return EncodeDictionary(dict);
+            } else if (obj is LCObject lcObj) {
+                return EncodeLCObject(lcObj);
+            } else if (obj is LCOperation op) {
+                return EncodeOperation(op);
+            } else if (obj is ILCQueryCondition cond) {
+                return EncodeQueryCondition(cond);
+            } else if (obj is LCACL acl) {
+                return EncodeACL(acl);
+            } else if (obj is LCRelation<LCObject> relation) {
+                return EncodeRelation(relation);
+            } else if (obj is LCGeoPoint geoPoint) {
+                return EncodeGeoPoint(geoPoint);
+            }
+            return obj;
+        }
+
+        static object EncodeDateTime(DateTime dateTime) {
+            DateTime utc = dateTime.ToUniversalTime();
+            string str = utc.ToString("yyyy-MM-ddTHH:mm:ss.fffZ");
+            return new Dictionary<string, object> {
+                { "__type", "Date" },
+                { "iso", str }
+            };
+        }
+
+        static object EncodeBytes(byte[] bytes) {
+            string str = Convert.ToBase64String(bytes);
+            return new Dictionary<string, object> {
+                { "__type", "Bytes" },
+                { "base64", str }
+            };
+        }
+
+        static object EncodeList(IList list) {
+            List<object> l = new List<object>();
+            foreach (object obj in list) {
+                l.Add(Encode(obj));
+            }
+            return l;
+        }
+
+        static object EncodeDictionary(IDictionary dict) {
+            Dictionary<string, object> d = new Dictionary<string, object>();
+            foreach (KeyValuePair<string, object> kv in dict) {
+                string key = kv.Key;
+                object value = kv.Value;
+                d[key] = value;
+            }
+            return d;
+        }
+
+        static object EncodeLCObject(LCObject obj) {
+            return new Dictionary<string, object> {
+                { "__type", "Pointer" },
+                { "className", obj.ClassName },
+                { "objectId", obj.ObjectId }
+            };
+        }
+
+        static object EncodeOperation(LCOperation operation) {
+            return null;
+        }
+
+        static object EncodeQueryCondition(ILCQueryCondition cond) {
+            return null;
+        }
+
+        static object EncodeACL(LCACL acl) {
+            HashSet<string> readers = acl.readers;
+            HashSet<string> writers = acl.writers;
+            HashSet<string> union = new HashSet<string>(readers);
+            union.UnionWith(writers);
+            Dictionary<string, object> dict = new Dictionary<string, object>();
+            foreach (string k in union) {
+                dict[k] = new Dictionary<string, object> {
+                    { "read", readers.Contains(k) },
+                    { "write", writers.Contains(k) }
+                };
+            }
+            return dict;
+        }
+
+        static object EncodeRelation(LCRelation<LCObject> relation) {
+            return new Dictionary<string, object> {
+                { "__type", "Relation" },
+                { "className", relation.targetClass }
+            };
+        }
+
+        static object EncodeGeoPoint(LCGeoPoint geoPoint) {
+            return new Dictionary<string, object> {
+                { "__type", "GeoPoint" },
+                { "latitude", geoPoint.Latitude },
+                { "longitude", geoPoint.Longitude }
+            };
+        }
+    }
+}

Storage/Storage/Internal/Encoding/NoObjectsEncoder.cs

@@ -1,23 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-namespace LeanCloud.Storage.Internal {
-  /// <summary>
-  /// A <see cref="AVEncoder"/> that throws an exception if it attempts to encode
-  /// a <see cref="AVObject"/>
-  /// </summary>
-  public class NoObjectsEncoder : AVEncoder {
-    // This class isn't really a Singleton, but since it has no state, it's more efficient to get
-    // the default instance.
-    private static readonly NoObjectsEncoder instance = new NoObjectsEncoder();
-    public static NoObjectsEncoder Instance {
-      get {
-        return instance;
-      }
-    }
-
-    protected override IDictionary<string, object> EncodeAVObject(AVObject value) {
-      throw new ArgumentException("AVObjects not allowed here.");
-    }
-  }
-}

Storage/Storage/Internal/File/LCAWSUploader.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal {
+    public class LCAWSUploader {
+        public LCAWSUploader() {
+        }
+    }
+}

Storage/Storage/Internal/File/LCQiniuUploader.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal {
+    public class LCQiniuUploader {
+        public LCQiniuUploader() {
+        }
+    }
+}

Storage/Storage/Internal/Http/LCHttpClient.cs

@@ -0,0 +1,82 @@
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+using System.Net;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using Newtonsoft.Json;
+using LeanCloud.Common;
+
+namespace LeanCloud.Storage.Internal.Http {
+    internal class LCHttpClient {
+        string appId;
+
+        string appKey;
+
+        string server;
+
+        string sdkVersion;
+
+        string apiVersion;
+
+        HttpClient client;
+
+        internal LCHttpClient(string appId, string appKey, string server, string sdkVersion, string apiVersion) {
+            this.appId = appId;
+            this.appKey = appKey;
+            this.server = server;
+            this.sdkVersion = sdkVersion;
+            this.apiVersion = apiVersion;
+
+            client = new HttpClient();
+            ProductHeaderValue product = new ProductHeaderValue("LeanCloud-CSharp-SDK", LeanCloud.SDKVersion);
+            client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue(product));
+            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
+            client.DefaultRequestHeaders.Add("X-LC-Id", appId);
+            // TODO
+            client.DefaultRequestHeaders.Add("X-LC-Key", appKey);
+        }
+
+        internal Task Get() {
+            return null;
+        }
+
+        internal async Task<Dictionary<string, object>> Post(string path,
+            Dictionary<string, object> headers = null,
+            Dictionary<string, object> data = null,
+            Dictionary<string, object> queryParams = null) {
+            string content = (data != null) ? JsonConvert.SerializeObject(data) : null;
+            HttpRequestMessage request = new HttpRequestMessage {
+                RequestUri = new Uri($"{server}/{apiVersion}/{path}"),
+                Method = HttpMethod.Post,
+                Content = new StringContent(content)
+            };
+            request.Content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
+            HttpUtils.PrintRequest(client, request, content);
+            HttpResponseMessage response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);
+            request.Dispose();
+
+            string resultString = await response.Content.ReadAsStringAsync();
+            response.Dispose();
+            HttpUtils.PrintResponse(response, resultString);
+
+            HttpStatusCode statusCode = response.StatusCode;
+            if (response.IsSuccessStatusCode) {
+                Dictionary<string, object> ret = JsonConvert.DeserializeObject<Dictionary<string, object>>(resultString, new LeanCloudJsonConverter());
+                return ret;
+            }
+            int code = (int)statusCode;
+            string message = resultString;
+            try {
+                // 尝试获取 LeanCloud 返回错误信息
+                Dictionary<string, object> error = JsonConvert.DeserializeObject<Dictionary<string, object>>(resultString, new LeanCloudJsonConverter());
+                code = (int)error["code"];
+                message = error["error"].ToString();
+            } catch (Exception e) {
+                Logger.Error(e.Message);
+            } finally {
+                throw new LCException(code, message);
+            }
+        }
+    }
+}

Storage/Storage/Internal/Object/LCBatch.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Object {
+    public class LCBatch {
+        public LCBatch() {
+        }
+    }
+}

Storage/Storage/Internal/Object/LCObjectData.cs

@@ -0,0 +1,73 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
+namespace LeanCloud.Storage.Internal.Object {
+    internal class LCObjectData {
+        internal string ClassName {
+            get; set;
+        }
+
+        internal string ObjectId {
+            get; set;
+        }
+
+        internal DateTime CreatedAt {
+            get; set;
+        }
+
+        internal DateTime UpdatedAt {
+            get; set;
+        }
+
+        internal Dictionary<string, object> CustomPropertyDict;
+
+        internal LCObjectData() {
+            CustomPropertyDict = new Dictionary<string, object>();
+        }
+
+        internal static LCObjectData Decode(IDictionary dict) {
+            if (dict == null) {
+                return null;
+            }
+            LCObjectData objectData = new LCObjectData();
+            foreach (KeyValuePair<string, object> kv in dict) {
+                string key = kv.Key;
+                object value = kv.Value;
+                if (key == "className") {
+                    objectData.ClassName = value.ToString();
+                } else if (key == "objectId") {
+                    objectData.ObjectId = value.ToString();
+                } else if (key == "createdAt" && DateTime.TryParse(value.ToString(), out DateTime createdAt)) {
+                    objectData.CreatedAt = createdAt;
+                } else if (key == "updatedAt" && DateTime.TryParse(value.ToString(), out DateTime updatedAt)) {
+                    objectData.UpdatedAt = updatedAt;
+                } else {
+                    objectData.CustomPropertyDict[key] = LCDecoder.Decode(value);
+                }
+            }
+            return objectData;
+        }
+
+        internal static Dictionary<string, object> Encode(LCObjectData objectData) {
+            if (objectData == null) {
+                return null;
+            }
+            Dictionary<string, object> dict = new Dictionary<string, object> {
+                { "className", objectData.ClassName },
+                { "objectId", objectData.ObjectId },
+                { "createdAt", objectData.CreatedAt },
+                { "updatedAt", objectData.UpdatedAt },
+            };
+            if (objectData.CustomPropertyDict != null) {
+                foreach (KeyValuePair<string, object> kv in objectData.CustomPropertyDict) {
+                    string key = kv.Key;
+                    object value = kv.Value;
+                    dict[key] = LCEncoder.Encode(value);
+                }
+            }
+            return dict;
+        }
+    }
+}

Storage/Storage/Internal/Object/LCSubClassInfo.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Object {
+    public class LCSubClassInfo {
+        public LCSubClassInfo() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCAddOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCAddOperation {
+        public LCAddOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCAddRelationOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCAddRelationOperation {
+        public LCAddRelationOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCAddUniqueOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCAddUniqueOperation {
+        public LCAddUniqueOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCDecrementOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCDecrementOperation {
+        public LCDecrementOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCDeleteOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCDeleteOperation {
+        public LCDeleteOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCIncrementOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCIncrementOperation {
+        public LCIncrementOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCOperation {
+        public LCOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCRemoveOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCRemoveOperation {
+        public LCRemoveOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCRemoveRelationOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal.Operation {
+    public class LCRemoveRelationOperation {
+        public LCRemoveRelationOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Operation/LCSetOperation.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage.Internal {
+    public class LCSetOperation {
+        public LCSetOperation() {
+        }
+    }
+}

Storage/Storage/Internal/Query/ILCQueryCondition.cs

@@ -0,0 +1,8 @@
+using System.Collections.Generic;
+
+namespace LeanCloud.Storage.Internal.Query {
+    internal interface ILCQueryCondition {
+        bool Equals(ILCQueryCondition other);
+        Dictionary<string, object> Encode();
+    }
+}

Storage/Storage/Internal/Query/LCCompositionalCondition.cs

@@ -0,0 +1,198 @@
+using System.Collections;
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
+namespace LeanCloud.Storage.Internal.Query {
+    internal class LCCompositionalCondition : ILCQueryCondition {
+        internal const string And = "$and";
+        internal const string Or = "$or";
+
+        readonly string composition;
+
+        List<ILCQueryCondition> conditionList;
+
+        List<string> orderByList;
+        HashSet<string> includes;
+        HashSet<string> selectedKeys;
+
+        internal int Skip {
+            get; set;
+        }
+
+        internal int Limit {
+            get; set;
+        }
+
+        internal LCCompositionalCondition(string composition = And) {
+            this.composition = composition;
+            Skip = 0;
+            Limit = 30;
+        }
+
+        // 查询条件
+        internal void WhereEqualTo(string key, object value) {
+            Add(new LCEqualCondition(key, value));
+        }
+
+        internal void WhereNotEqualTo(string key, object value) {
+            AddOperation(key, "$ne", value);
+        }
+
+        internal void WhereContainedIn(string key, IEnumerable values) {
+            AddOperation(key, "$in", values);
+        }
+
+        internal void WhereNotContainedIn(string key, IEnumerable values) {
+            AddOperation(key, "nin", values);
+        }
+
+        internal void WhereContainsAll(string key, IEnumerable values) {
+            AddOperation(key, "$all", values);
+        }
+
+        internal void WhereExists(string key) {
+            AddOperation(key, "$exists", true);
+        }
+
+        internal void WhereDoesNotExist(string key) {
+            AddOperation(key, "$exists", false);
+        }
+
+        internal void WhereSizeEqualTo(string key, int size) {
+            AddOperation(key, "$size", size);
+        }
+
+        internal void WhereGreaterThan(string key, object value) {
+            AddOperation(key, "$gt", value);
+        }
+
+        internal void WhereGreaterThanOrEqualTo(string key, object value) {
+            AddOperation(key, "$gte", value);
+        }
+
+        internal void WhereLessThan(string key, object value) {
+            AddOperation(key, "$lt$lt", value);
+        }
+
+        internal void WhereLessThanOrEqualTo(string key, object value) {
+            AddOperation(key, "$lte", value);
+        }
+
+        internal void WhereNear(string key, LCGeoPoint point) {
+            AddOperation(key, "$nearSphere", point);
+        }
+
+        internal void WhereWithinGeoBox(string key, LCGeoPoint southwest, LCGeoPoint northeast) {
+            Dictionary<string, object> value = new Dictionary<string, object> {
+                { "$box", new List<object> { southwest, northeast } }
+            };
+            AddOperation(key, "$within", value);
+        }
+
+        internal void WhereRelatedTo(LCObject parent, string key) {
+            Add(new LCRelatedCondition(parent, key));
+        }
+
+        internal void WhereStartsWith(string key, string prefix) {
+            AddOperation(key, "$regex", $"^{prefix}.*");
+        }
+
+        internal void WhereEndsWith(string key, string suffix) {
+            AddOperation(key, "$regex", $".*{suffix}$");
+        }
+
+        internal void WhereContains(string key, string subString) {
+            AddOperation(key, "$regex", $".*{subString}.*");
+        }
+
+        void AddOperation(string key, string op, object value) {
+            LCOperationCondition cond = new LCOperationCondition(key, op, value);
+            Add(cond);
+        }
+
+        void Add(ILCQueryCondition cond) {
+            if (cond == null) {
+                return;
+            }
+            if (conditionList == null) {
+                conditionList = new List<ILCQueryCondition>();
+            }
+            conditionList.RemoveAll(item => item.Equals(cond));
+            conditionList.Add(cond);
+        }
+
+        // 筛选条件
+        internal void OrderBy(string key) {
+            if (orderByList == null) {
+                orderByList = new List<string>();
+            }
+            orderByList.Add(key);
+        }
+
+        internal void OrderByDesending(string key) {
+            OrderBy($"-{key}");
+        }
+
+        internal void Include(string key) {
+            if (includes == null) {
+                includes = new HashSet<string>();
+            }
+            includes.Add(key);
+        }
+
+        internal void Select(string key) {
+            if (selectedKeys == null) {
+                selectedKeys = new HashSet<string>();
+            }
+            selectedKeys.Add(key);
+        }
+
+        public bool Equals(ILCQueryCondition other) {
+            return false;
+        }
+
+        public Dictionary<string, object> Encode() {
+            if (conditionList == null || conditionList.Count == 0) {
+                return null;
+            }
+            if (conditionList.Count == 1) {
+                ILCQueryCondition cond = conditionList[0];
+                return cond.Encode();
+            }
+            return new Dictionary<string, object> {
+                { composition, LCEncoder.Encode(conditionList) }
+            };
+        }
+
+        internal Dictionary<string, object> BuildParams(string className) {
+            Dictionary<string, object> dict = new Dictionary<string, object> {
+                { "className", className },
+                { "skip", Skip },
+                { "limit", Limit }
+            };
+            if (conditionList != null && conditionList.Count > 0) {
+                // TODO json
+                dict["where"] = Encode();
+            }
+            if (orderByList != null && orderByList.Count > 0) {
+                dict["order"] = string.Join(",", orderByList);
+            }
+            if (includes != null && includes.Count > 0) {
+                dict["include"] = string.Join(",", includes);
+            }
+            if (selectedKeys != null && selectedKeys.Count > 0) {
+                dict["keys"] = string.Join(",", selectedKeys);
+            }
+            return dict;
+        }
+
+        internal string BuildWhere() {
+            if (conditionList == null || conditionList.Count == 0) {
+                return null;
+            }
+            // TODO
+
+            return null;
+        }
+    }
+}

Storage/Storage/Internal/Query/LCEqualCondition.cs

@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
+namespace LeanCloud.Storage.Internal.Query {
+    internal class LCEqualCondition : ILCQueryCondition {
+        readonly string key;
+        readonly object value;
+
+        internal LCEqualCondition(string key, object value) {
+            this.key = key;
+            this.value = value;
+        }
+
+        public bool Equals(ILCQueryCondition other) {
+            if (other is LCEqualCondition cond) {
+                return cond.key == key;
+            }
+            return false;
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { key, LCEncoder.Encode(value) }
+            };
+        }
+    }
+}

Storage/Storage/Internal/Query/LCOperationCondition.cs

@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
+namespace LeanCloud.Storage.Internal.Query {
+    internal class LCOperationCondition : ILCQueryCondition {
+        readonly string key;
+        readonly string op;
+        readonly object value;
+
+        internal LCOperationCondition(string key, string op, object value) {
+            this.key = key;
+            this.op = op;
+            this.value = value;
+        }
+
+        public bool Equals(ILCQueryCondition other) {
+            if (other is LCOperationCondition cond) {
+                return cond.key == key && cond.op == op;
+            }
+            return false;
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { key, new Dictionary<string, object> {
+                    { op, LCEncoder.Encode(value) }
+                } }
+            };
+        }
+    }
+}

Storage/Storage/Internal/Query/LCRelatedCondition.cs

@@ -0,0 +1,30 @@
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Codec;
+
+namespace LeanCloud.Storage.Internal.Query {
+    internal class LCRelatedCondition : ILCQueryCondition {
+        readonly LCObject parent;
+        readonly string key;
+
+        internal LCRelatedCondition(LCObject parent, string key) {
+            this.parent = parent;
+            this.key = key;
+        }
+
+        public bool Equals(ILCQueryCondition other) {
+            if (other is LCRelatedCondition cond) {
+                return cond.key == key;
+            }
+            return false;
+        }
+
+        public Dictionary<string, object> Encode() {
+            return new Dictionary<string, object> {
+                { "$relatedTo", new Dictionary<string, object> {
+                    { "object", LCEncoder.Encode(parent) },
+                    { "key", key }
+                } }
+            };
+        }
+    }
+}

Storage/Storage/Internal_/Object/State/ObjectData.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace LeanCloud.Storage.Internal {
+    internal class ObjectData : IEnumerable<KeyValuePair<string, object>> {
+        internal string ClassName {
+            get; set;
+        }
+
+        internal string ObjectId {
+            get; set;
+        }
+
+        internal AVACL ACL {
+            get; set;
+        }
+
+        internal DateTime? CreatedAt {
+            get; set;
+        }
+
+        internal DateTime? UpdatedAt {
+            get; set;
+        }
+
+        internal Dictionary<string, object> CustomProperties {
+            get; set;
+        } = new Dictionary<string, object>();
+
+        internal object this[string key] {
+            get {
+                return CustomProperties[key];
+            }
+        }
+
+        internal bool ContainsKey(string key) {
+            return CustomProperties.ContainsKey(key);
+        }
+
+        internal void Apply(Dictionary<string, IAVFieldOperation> operations) {
+            foreach (KeyValuePair<string, IAVFieldOperation> entry in operations) {
+                string propKey = entry.Key;
+                object propVal = entry.Value;
+                if (!CustomProperties.TryGetValue(propKey, out object oldVal)) {
+                    continue;
+                }
+                object newVal = entry.Value.Apply(oldVal, propKey);
+                if (newVal == AVDeleteOperation.DeleteToken) {
+                    CustomProperties.Remove(propKey);
+                } else {
+                    CustomProperties[propKey] = newVal;
+                }
+            }
+        }
+
+        #region IEnumerable
+
+        public IEnumerator<KeyValuePair<string, object>> GetEnumerator() {
+            return ((IEnumerable<KeyValuePair<string, object>>)CustomProperties).GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator() {
+            return ((IEnumerable<KeyValuePair<string, object>>)CustomProperties).GetEnumerator();
+        }
+
+        #endregion
+    }
+}

Storage/Storage/Internal_/Utilities/InternalExtensions.cs

@@ -43,7 +43,7 @@ namespace LeanCloud.Storage.Internal {
     }
 
     public static bool CollectionsEqual<T>(this IEnumerable<T> a, IEnumerable<T> b) {
-      return Object.Equals(a, b) ||
+      return Equals(a, b) ||
              (a != null && b != null &&
              a.SequenceEqual(b));
     }

Storage/Storage/LCACL.cs

@@ -0,0 +1,137 @@
+using System;
+using System.Collections.Generic;
+
+namespace LeanCloud.Storage {
+    /// <summary>
+    /// 访问控制类
+    /// </summary>
+    public class LCACL {
+        const string PublicKey = "*";
+
+        const string RoleKeyPrefix = "role:";
+
+        internal HashSet<string> readers;
+        internal HashSet<string> writers;
+
+        public bool PublicReadAccess {
+            get {
+                return GetAccess(readers, PublicKey);
+            } set {
+                SetAccess(readers, PublicKey, value);
+            }
+        }
+
+        public bool PublicWriteAccess {
+            get {
+                return GetAccess(writers, PublicKey);
+            } set {
+                SetAccess(writers, PublicKey, value);
+            }
+        }
+
+        public bool GetUserIdReadAccess(string userId) {
+            if (string.IsNullOrEmpty(userId)) {
+                throw new ArgumentNullException(nameof(userId));
+            }
+            return GetAccess(readers, userId);
+        }
+
+        public void SetUserIdReadAccess(string userId, bool value) {
+            if (string.IsNullOrEmpty(userId)) {
+                throw new ArgumentNullException(nameof(userId));
+            }
+            SetAccess(readers, userId, value);
+        }
+
+        public bool GetUserIdWriteAccess(string userId) {
+            if (string.IsNullOrEmpty(userId)) {
+                throw new ArgumentNullException(nameof(userId));
+            }
+            return GetAccess(writers, userId);
+        }
+
+        public void SetUserIdWriteAccess(string userId, bool value) {
+            if (string.IsNullOrEmpty(userId)) {
+                throw new ArgumentNullException(nameof(userId));
+            }
+            SetAccess(writers, userId, value);
+        }
+
+        public bool GetUserReadAccess(LCUser user) {
+            if (user == null) {
+                throw new ArgumentNullException(nameof(user));
+            }
+            return GetUserIdReadAccess(user.ObjectId);
+        }
+
+        public void SetUserReadAccess(LCUser user, bool value) {
+            if (user == null) {
+                throw new ArgumentNullException(nameof(user));
+            }
+            SetUserIdReadAccess(user.ObjectId, value);
+        }
+
+        public bool GetUserWriteAccess(LCUser user) {
+            if (user == null) {
+                throw new ArgumentNullException(nameof(user));
+            }
+            return GetUserIdWriteAccess(user.ObjectId);
+        }
+
+        public void SetUserWriteAccess(LCUser user, bool value) {
+            if (user == null) {
+                throw new ArgumentNullException(nameof(user));
+            }
+            SetUserIdWriteAccess(user.ObjectId, value);
+        }
+
+        public bool GetRoleReadAccess(LCRole role) {
+            if (role == null) {
+                throw new ArgumentNullException(nameof(role));
+            }
+            string roleKey = $"{RoleKeyPrefix}{role.ObjectId}";
+            return GetAccess(readers, roleKey);
+        }
+
+        public void SetRoleReadAccess(LCRole role, bool value) {
+            if (role == null) {
+                throw new ArgumentNullException(nameof(role));
+            }
+            string roleKey = $"{RoleKeyPrefix}{role.ObjectId}";
+            SetAccess(readers, roleKey, value);
+        }
+
+        public bool GetRoleWriteAccess(LCRole role) {
+            if (role == null) {
+                throw new ArgumentNullException(nameof(role));
+            }
+            string roleKey = $"{RoleKeyPrefix}{role.ObjectId}";
+            return GetAccess(writers, roleKey);
+        }
+
+        public void SetRoleWriteAccess(LCRole role, bool value) {
+            if (role == null) {
+                throw new ArgumentNullException(nameof(role));
+            }
+            string roleKey = $"{RoleKeyPrefix}{role.ObjectId}";
+            SetAccess(writers, roleKey, value);
+        }
+
+        public LCACL() {
+            readers = new HashSet<string>();
+            writers = new HashSet<string>();
+        }
+
+        bool GetAccess(HashSet<string> set, string key) {
+            return set.Contains(key);
+        }
+
+        void SetAccess(HashSet<string> set, string key, bool value) {
+            if (value) {
+                set.Add(key);
+            } else {
+                set.Remove(key);
+            }
+        }
+    }
+}

Storage/Storage/LCCloud.cs

@@ -0,0 +1,26 @@
+using System.Threading.Tasks;
+using System.Collections.Generic;
+
+namespace LeanCloud.Storage {
+    /// <summary>
+    /// 云引擎
+    /// </summary>
+    public static class LCCloud {
+        /// <summary>
+        /// 调用云函数，结果为 Dictionary 类型
+        /// </summary>
+        /// <param name="name"></param>
+        /// <param name="parameters"></param>
+        /// <returns></returns>
+        public static async Task<Dictionary<string, object>> Run(string name, Dictionary<string, object> parameters = null) {
+            string path = $"functions/{name}";
+            Dictionary<string, object> response = await LeanCloud.HttpClient.Post(path, data: parameters);
+            return response;
+        }
+
+        public static Task<object> RPC(string name, Dictionary<string, object> parameters = null) {
+            string path = $"call/{name}";
+            return null;
+        }
+    }
+}

Storage/Storage/LCException.cs

@@ -0,0 +1,18 @@
+using System;
+
+namespace LeanCloud.Storage {
+    public class LCException : Exception {
+        public int Code {
+            get; set;
+        }
+
+        public string Message {
+            get; set;
+        }
+
+        public LCException(int code, string message) {
+            Code = code;
+            Message = message;
+        }
+    }
+}

Storage/Storage/LCFile.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage {
+    public class LCFile : LCObject {
+        public LCFile() {
+        }
+    }
+}

Storage/Storage/LCGeoPoint.cs

@@ -0,0 +1,78 @@
+using System;
+
+namespace LeanCloud.Storage {
+    public class LCGeoPoint {
+        /// <summary>
+        /// 纬度
+        /// </summary>
+        public double Latitude {
+            get;
+        }
+
+        /// <summary>
+        /// 经度
+        /// </summary>
+        public double Longitude {
+            get;
+        }
+
+        public LCGeoPoint(double latitude, double longtitude) {
+            Latitude = latitude;
+            Longitude = longtitude;
+        }
+
+        public static LCGeoPoint Origin {
+            get {
+                return new LCGeoPoint(0, 0);
+            }
+        }
+
+        /// <summary>
+        /// 据某点的距离（单位：千米）
+        /// </summary>
+        /// <param name="point"></param>
+        /// <returns></returns>
+        public double KilometersTo(LCGeoPoint point) {
+            if (point == null) {
+                throw new ArgumentNullException(nameof(point));
+            }
+            return RadiansTo(point) * 6371.0;
+        }
+
+        /// <summary>
+        /// 据某点的距离（单位：英里）
+        /// </summary>
+        /// <param name="point"></param>
+        /// <returns></returns>
+        public double MilesTo(LCGeoPoint point) {
+            if (point == null) {
+                throw new ArgumentNullException(nameof(point));
+            }
+            return RadiansTo(point) * 3958.8;
+        }
+
+        /// <summary>
+        /// 据某点的距离（单位：弧度）
+        /// </summary>
+        /// <param name="point"></param>
+        /// <returns></returns>
+        public double RadiansTo(LCGeoPoint point) {
+            if (point == null) {
+                throw new ArgumentNullException(nameof(point));
+            }
+            double d2r = Math.PI / 180.0;
+            double lat1rad = Latitude * d2r;
+            double long1rad = Longitude * d2r;
+            double lat2rad = point.Latitude * d2r;
+            double long2rad = point.Longitude * d2r;
+            double deltaLat = lat1rad - lat2rad;
+            double deltaLong = long1rad - long2rad;
+            double sinDeltaLatDiv2 = Math.Sin(deltaLat / 2);
+            double sinDeltaLongDiv2 = Math.Sin(deltaLong / 2);
+            double a = sinDeltaLatDiv2 * sinDeltaLatDiv2 +
+                Math.Cos(lat1rad) * Math.Cos(lat2rad) * sinDeltaLongDiv2 * sinDeltaLongDiv2;
+            a = Math.Min(1.0, a);
+            return 2 * Math.Cos(Math.Sqrt(a));
+        }
+    }
+}

Storage/Storage/LCObject.cs

@@ -0,0 +1,45 @@
+using System.Collections.Generic;
+using LeanCloud.Storage.Internal.Object;
+using LeanCloud.Storage.Internal.Operation;
+
+namespace LeanCloud.Storage {
+    /// <summary>
+    /// 对象类
+    /// </summary>
+    public class LCObject {
+        /// <summary>
+        /// 最近一次与服务端同步的数据
+        /// </summary>
+        LCObjectData data;
+
+        /// <summary>
+        /// 预算数据
+        /// </summary>
+        Dictionary<string, object> estimatedData;
+
+        /// <summary>
+        /// 操作字典
+        /// </summary>
+        Dictionary<string, LCOperation> operationDict;
+
+        public string ClassName {
+            get {
+                return data.ClassName;
+            }
+        }
+
+        public string ObjectId {
+            get {
+                return data.ObjectId;
+            }
+        }
+
+        public LCObject() {
+        }
+
+        internal static LCObject Create(string className) {
+            // TODO
+            return null;
+        }
+    }
+}

Storage/Storage/LCQuery.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage {
+    public class LCQuery {
+        public LCQuery() {
+        }
+    }
+}

Storage/Storage/LCRelation.cs

@@ -0,0 +1,20 @@
+using System;
+
+namespace LeanCloud.Storage {
+    public class LCRelation<T> where T : LCObject {
+        public string Key {
+            get; set;
+        }
+
+        public LCObject Parent {
+            get; set;
+        }
+
+        public string targetClass {
+            get; set;
+        }
+
+        public LCRelation() {
+        }
+    }
+}

Storage/Storage/LCRole.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage {
+    public class LCRole : LCObject {
+        public LCRole() {
+        }
+    }
+}

Storage/Storage/LCUser.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage {
+    public class LCUser : LCObject {
+        public LCUser() {
+        }
+    }
+}

Storage/Storage/LCUserAuthDataLoginOption.cs

@@ -0,0 +1,7 @@
+using System;
+namespace LeanCloud.Storage {
+    public class LCUserAuthDataLoginOption {
+        public LCUserAuthDataLoginOption() {
+        }
+    }
+}

Storage/Storage/LeanCloud.cs

@@ -0,0 +1,35 @@
+using System;
+using LeanCloud.Storage.Internal.Http;
+
+namespace LeanCloud {
+    /// <summary>
+    /// LeanCloud 全局接口
+    /// </summary>
+    public class LeanCloud {
+        // SDK 版本号，用于 User-Agent 统计
+        internal const string SDKVersion = "0.1.0";
+
+        // 接口版本号，用于接口版本管理
+        internal const string APIVersion = "1.1";
+
+        public static bool UseProduction {
+            get; set;
+        }
+
+        internal static LCHttpClient HttpClient {
+            get; private set;
+        }
+
+        public static void Initialize(string appId, string appKey, string server = null) {
+            if (string.IsNullOrEmpty(appId)) {
+                throw new ArgumentException(nameof(appId));
+            }
+            if (string.IsNullOrEmpty(appKey)) {
+                throw new ArgumentException(nameof(appKey));
+            }
+            // TODO 注册 LeanCloud 内部子类化类型
+
+            HttpClient = new LCHttpClient(appId, appKey, server, SDKVersion, APIVersion);
+        }
+    }
+}

Storage/Storage/Public/AVObject.cs

@@ -8,7 +8,6 @@ using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Collections;
-using System.Collections.Concurrent;
 
 namespace LeanCloud {
     public class AVObject : IEnumerable<KeyValuePair<string, object>> {
@@ -64,15 +63,15 @@ namespace LeanCloud {
 
         public ICollection<string> Keys {
             get {
-                return estimatedData.Keys.Union(serverData.Keys).ToArray();
+                return estimatedData.Keys;
             }
         }
 
         private static readonly string AutoClassName = "_Automatic";
 
-        internal readonly ConcurrentDictionary<string, IAVFieldOperation> operationDict = new ConcurrentDictionary<string, IAVFieldOperation>();
+        internal readonly Dictionary<string, IAVFieldOperation> operationDict = new Dictionary<string, IAVFieldOperation>();
-        private readonly ConcurrentDictionary<string, object> serverData = new ConcurrentDictionary<string, object>();
+        private Dictionary<string, object> serverData = new Dictionary<string, object>();
-        private readonly ConcurrentDictionary<string, object> estimatedData = new ConcurrentDictionary<string, object>();
+        private Dictionary<string, object> estimatedData = new Dictionary<string, object>();
 
         private bool dirty;
 
@@ -232,6 +231,9 @@ namespace LeanCloud {
             //    newServerData[pair.Key] = value;
             //}
 
+            this.serverData = serverData.Concat(this.serverData.Where(d => !serverData.ContainsKey(d.Key)))
+                .ToDictionary(x => x.Key, x => x.Value);
+
             IsDirty = false;
             serverState = serverState.MutatedClone(mutableClone => {
                 mutableClone.ServerData = newServerData;
@@ -248,7 +250,7 @@ namespace LeanCloud {
 
             operationDict.Clear();
             foreach (KeyValuePair<string, IAVFieldOperation> entry in other.operationDict) {
-                operationDict.AddOrUpdate(entry.Key, entry.Value, (key, value) => value);
+                operationDict.Add(entry.Key, entry.Value);
             }
             state = other.State;
 
@@ -293,7 +295,26 @@ namespace LeanCloud {
                 as IDictionary<string, object>;
         }
 
-        #region Save Object()
+        internal virtual async Task<AVObject> FetchAsyncInternal(IDictionary<string, object> queryString, CancellationToken cancellationToken = default) {
+            if (ObjectId == null) {
+                throw new InvalidOperationException("Cannot refresh an object that hasn't been saved to the server.");
+            }
+            if (queryString == null) {
+                queryString = new Dictionary<string, object>();
+            }
+
+            var command = new AVCommand {
+                Path = $"classes/{Uri.EscapeDataString(state.ClassName)}/{Uri.EscapeDataString(state.ObjectId)}?{AVClient.BuildQueryString(queryString)}",
+                Method = HttpMethod.Get
+            };
+            var data = await AVPlugins.Instance.CommandRunner.RunCommandAsync<IDictionary<string, object>>(command, cancellationToken);
+            IObjectState objectState = AVObjectCoder.Instance.Decode(data.Item2, AVDecoder.Instance);
+
+            HandleFetchResult(objectState);
+            return this;
+        }
+
+        #region Save
 
         public virtual async Task SaveAsync(bool fetchWhenSave = false, AVQuery<AVObject> query = null, CancellationToken cancellationToken = default) {
             if (HasCircleReference(this, new HashSet<AVObject>())) {
@@ -371,38 +392,8 @@ namespace LeanCloud {
             }
         }
 
-        internal virtual async Task<AVObject> FetchAsyncInternal(IDictionary<string, object> queryString, CancellationToken cancellationToken = default) {
-            if (ObjectId == null) {
-                throw new InvalidOperationException("Cannot refresh an object that hasn't been saved to the server.");
-            }
-            if (queryString == null) {
-                queryString = new Dictionary<string, object>();
-            }
-
-            var command = new AVCommand {
-                Path = $"classes/{Uri.EscapeDataString(state.ClassName)}/{Uri.EscapeDataString(state.ObjectId)}?{AVClient.BuildQueryString(queryString)}",
-                Method = HttpMethod.Get
-            };
-            var data = await AVPlugins.Instance.CommandRunner.RunCommandAsync<IDictionary<string, object>>(command, cancellationToken);
-            IObjectState objectState = AVObjectCoder.Instance.Decode(data.Item2, AVDecoder.Instance);
-
-            HandleFetchResult(objectState);
-            return this;
-        }
-
         #endregion
 
-        #region Fetch Object(s)
-
-        public static Task<IEnumerable<T>> FetchAllIfNeededAsync<T>(
-            IEnumerable<T> objects, CancellationToken cancellationToken = default) where T : AVObject {
-            return FetchAllInternalAsync(objects, false, cancellationToken);
-        }
-
-        public static Task<IEnumerable<T>> FetchAllAsync<T>(IEnumerable<T> objects, CancellationToken cancellationToken = default) where T : AVObject {
-            return FetchAllInternalAsync(objects, true, cancellationToken);
-        }
-
         private static Task<IEnumerable<T>> FetchAllInternalAsync<T>(
             IEnumerable<T> objects, bool force, CancellationToken cancellationToken) where T : AVObject {
 
@@ -441,9 +432,20 @@ namespace LeanCloud {
             });
         }
 
+        #region Fetch
+
+        public static Task<IEnumerable<T>> FetchAllIfNeededAsync<T>(
+            IEnumerable<T> objects, CancellationToken cancellationToken = default) where T : AVObject {
+            return FetchAllInternalAsync(objects, false, cancellationToken);
+        }
+
+        public static Task<IEnumerable<T>> FetchAllAsync<T>(IEnumerable<T> objects, CancellationToken cancellationToken = default) where T : AVObject {
+            return FetchAllInternalAsync(objects, true, cancellationToken);
+        }
+
         #endregion
 
-        #region Delete Object
+        #region Delete
 
         public virtual async Task DeleteAsync(AVQuery<AVObject> query = null, CancellationToken cancellationToken = default) {
             if (ObjectId == null) {
@@ -490,48 +492,6 @@ namespace LeanCloud {
             PerformOperation(key, AVDeleteOperation.Instance);
         }
 
-
-        private IEnumerable<string> ApplyOperations(IDictionary<string, IAVFieldOperation> operations, IDictionary<string, object> map) {
-            List<string> appliedKeys = new List<string>();
-            foreach (var pair in operations) {
-                map.TryGetValue(pair.Key, out object oldValue);
-                var newValue = pair.Value.Apply(oldValue, pair.Key);
-                if (newValue != AVDeleteOperation.DeleteToken) {
-                    map[pair.Key] = newValue;
-                } else {
-                    map.Remove(pair.Key);
-                }
-                appliedKeys.Add(pair.Key);
-            }
-            return appliedKeys;
-        }
-
-        internal void RebuildEstimatedData() {
-            estimatedData.Clear();
-            ApplyOperations(operationDict, estimatedData);
-        }
-
-        internal void PerformOperation(string key, IAVFieldOperation operation) {
-            estimatedData.TryGetValue(key, out object oldValue);
-            object newValue = operation.Apply(oldValue, key);
-            if (newValue != AVDeleteOperation.DeleteToken) {
-                estimatedData[key] = newValue;
-            } else {
-                estimatedData.TryRemove(key, out _);
-            }
-
-            if (operationDict.TryGetValue(key, out IAVFieldOperation oldOperation)) {
-                operation = operation.MergeWithPrevious(oldOperation);
-            }
-            operationDict[key] = operation;
-        }
-
-        internal virtual void OnSettingValue(ref string key, ref object value) {
-            if (key == null) {
-                throw new ArgumentNullException(nameof(key));
-            }
-        }
-
         virtual public object this[string key] {
             get {
                 CheckKeyValid(key);
@@ -553,11 +513,6 @@ namespace LeanCloud {
             }
         }
 
-        internal void Set(string key, object value) {
-            OnSettingValue(ref key, ref value);
-            PerformOperation(key, new AVSetOperation(value));
-        }
-
         #region Atomic Increment
 
         public void Increment(string key) {
@@ -576,6 +531,8 @@ namespace LeanCloud {
 
         #endregion
 
+        #region List
+
         public void AddToList(string key, object value) {
             CheckKeyValid(key);
             AddRangeToList(key, new[] { value });
@@ -601,6 +558,58 @@ namespace LeanCloud {
             PerformOperation(key, new AVRemoveOperation(values.Cast<object>()));
         }
 
+        #endregion
+
+
+        private IEnumerable<string> ApplyOperations(IDictionary<string, IAVFieldOperation> operations, IDictionary<string, object> map) {
+            List<string> appliedKeys = new List<string>();
+            foreach (var pair in operations) {
+                map.TryGetValue(pair.Key, out object oldValue);
+                var newValue = pair.Value.Apply(oldValue, pair.Key);
+                if (newValue != AVDeleteOperation.DeleteToken) {
+                    map[pair.Key] = newValue;
+                } else {
+                    map.Remove(pair.Key);
+                }
+                appliedKeys.Add(pair.Key);
+            }
+            return appliedKeys;
+        }
+
+        internal void RebuildEstimatedData() {
+            estimatedData.Clear();
+            foreach (KeyValuePair<string, object> entry in serverData) {
+                estimatedData.Add(entry.Key, entry.Value);
+            }
+            ApplyOperations(operationDict, estimatedData);
+        }
+
+        internal void PerformOperation(string key, IAVFieldOperation operation) {
+            estimatedData.TryGetValue(key, out object oldValue);
+            object newValue = operation.Apply(oldValue, key);
+            if (newValue != AVDeleteOperation.DeleteToken) {
+                estimatedData[key] = newValue;
+            } else {
+                estimatedData.Remove(key);
+            }
+
+            if (operationDict.TryGetValue(key, out IAVFieldOperation oldOperation)) {
+                operation = operation.MergeWithPrevious(oldOperation);
+            }
+            operationDict[key] = operation;
+        }
+
+        internal virtual void OnSettingValue(ref string key, ref object value) {
+            if (key == null) {
+                throw new ArgumentNullException(nameof(key));
+            }
+        }
+
+        internal void Set(string key, object value) {
+            OnSettingValue(ref key, ref value);
+            PerformOperation(key, new AVSetOperation(value));
+        }
+
         void CheckKeyValid(string key) {
             if (string.IsNullOrEmpty(key)) {
                 throw new ArgumentNullException(nameof(key));
@@ -613,6 +622,15 @@ namespace LeanCloud {
             }
         }
 
+
+
+        public void Add(string key, object value) {
+            if (ContainsKey(key)) {
+                throw new ArgumentException("Key already exists", key);
+            }
+            this[key] = value;
+        }
+
         public bool ContainsKey(string key) {
             return estimatedData.ContainsKey(key) || state.ContainsKey(key);
         }
@@ -675,13 +693,6 @@ namespace LeanCloud {
             return dirty || operationDict.Count > 0;
         }
 
-        public void Add(string key, object value) {
-            if (ContainsKey(key)) {
-                throw new ArgumentException("Key already exists", key);
-            }
-            this[key] = value;
-        }
-
         IEnumerator<KeyValuePair<string, object>> IEnumerable<KeyValuePair<string, object>>.GetEnumerator() {
             return estimatedData.GetEnumerator();
         }
@@ -695,7 +706,6 @@ namespace LeanCloud {
             return new AVQuery<T>(className);
         }
 
-        #region refactor
 
         static bool HasCircleReference(object obj, HashSet<AVObject> parents) {
             if (parents.Contains(obj)) {
@@ -760,8 +770,6 @@ namespace LeanCloud {
             return batches;
         }
 
-        #endregion
-
         /// <summary>
         /// 保存 AVObject 时用到的辅助批次工具类
         /// </summary>

Storage/Storage/Storage.csproj

@@ -3,6 +3,7 @@
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
     <ReleaseVersion>0.1.0</ReleaseVersion>
+    <RootNamespace>LeanCloud.Storage</RootNamespace>
   </PropertyGroup>
 
   <ItemGroup>
@@ -14,4 +15,13 @@
   <ItemGroup>
     <ProjectReference Include="..\..\Common\Common.csproj" />
   </ItemGroup>
+  <ItemGroup>
+    <Folder Include="Internal\" />
+    <Folder Include="Internal\Codec\" />
+    <Folder Include="Internal\File\" />
+    <Folder Include="Internal\Http\" />
+    <Folder Include="Internal\Object\" />
+    <Folder Include="Internal\Operation\" />
+    <Folder Include="Internal\Query\" />
+  </ItemGroup>
 </Project>

Test/Common.Test/AppRouterTest.cs

@@ -1,7 +1,7 @@
 using System;
 using System.Threading.Tasks;
 using NUnit.Framework;
-using LeanCloud.Common;
+using LeanCloud;
 
 namespace Common.Test {
     public class AppRouterTest {