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Merge pull request #16 from zhouyuguangsc/v3.0.0
update version to 3.0.0
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| using Nebula.Graph; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Reflection; | ||
| using System.Text; | ||
| using System.Threading.Tasks; | ||
|
|
||
| namespace NebulaNet | ||
| { | ||
| public static class EnumerableExtensions | ||
| { | ||
| public static async Task<T[]> ToArrayAsync<T>(this Task<ExecutionResponse> executionTask) | ||
| { | ||
| var executionResponse = await executionTask; | ||
| if (executionResponse.Data == null) | ||
| return default; | ||
| if (executionResponse.Data.Rows.Count != 1) | ||
| return default;//不能解析多行 | ||
|
|
||
| return (T[])executionResponse.Data.Rows[0].Values[0].Mapping(typeof(T[])); | ||
| } | ||
| public static async Task<IList<T>> ToListAsync<T>(this Task<ExecutionResponse> executionTask) | ||
| { | ||
| var executionResponse = await executionTask; | ||
| if (executionResponse.Data == null) | ||
| return default; | ||
|
|
||
| //获取列名 | ||
| var columnNames = executionResponse.Data.Column_names | ||
| .Select(x => Encoding.UTF8.GetString(x).ToLower()).ToArray(); | ||
|
|
||
| //查找可用属性和数据索引 | ||
| var indexAndProps = typeof(T).GetProperties(BindingFlags.Public | BindingFlags.Instance)//BindingFlags.IgnoreCase | ||
| .Select(x => new { Index = Array.IndexOf(columnNames, x.Name.ToLower()), Prop = x }) | ||
| .Where(x => x.Index >= 0); | ||
|
|
||
| //映射对象 | ||
| var result = new List<T>(); | ||
| foreach (var row in executionResponse.Data.Rows) | ||
| { | ||
| var o = Activator.CreateInstance<T>(); | ||
| foreach (var item in indexAndProps) | ||
| { | ||
| item.Prop.SetValue(o, row.Values[item.Index].Mapping(item.Prop.PropertyType)); | ||
| } | ||
| result.Add(o); | ||
| } | ||
|
|
||
| return result; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,37 @@ | ||
| using Microsoft.Extensions.ObjectPool; | ||
| using NebulaNet; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Text; | ||
|
|
||
| namespace Microsoft.Extensions.DependencyInjection | ||
| { | ||
| public static class NebulaServiceExtension | ||
| { | ||
| public static IServiceCollection AddNebulaGraph(this IServiceCollection services,Action<NebulaConfig> configProvider) | ||
| { | ||
| var config = new NebulaConfig(configProvider); | ||
|
|
||
| services.AddSingleton<ObjectPool<NebulaConnection>>(serviceProvider => | ||
| { | ||
| var objectPoolProvider = new DefaultObjectPoolProvider(); | ||
| objectPoolProvider.MaximumRetained = 30; | ||
| return objectPoolProvider.Create(new NebulaConnPoolPolicy(config)); | ||
| }); | ||
| services.AddSingleton<ObjectPool<SessionId>>(serviceProvider => | ||
| { | ||
| var objectPoolProvider=new DefaultObjectPoolProvider(); | ||
| objectPoolProvider.MaximumRetained = 30; | ||
| return objectPoolProvider.Create(new NebulaSessionIdPoolPolicy()); | ||
| }); | ||
| services.AddSingleton(serviceProvider => | ||
| { | ||
| var connPool = serviceProvider.GetRequiredService<ObjectPool<NebulaConnection>>(); | ||
| var sessionIdPool = serviceProvider.GetRequiredService<ObjectPool<SessionId>>(); | ||
| return new NebulaPool(connPool, sessionIdPool, config); | ||
| }); | ||
|
|
||
| return services; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| using Nebula.Common; | ||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.ComponentModel; | ||
| using System.Linq; | ||
| using System.Reflection; | ||
| using System.Text; | ||
|
|
||
| namespace NebulaNet | ||
| { | ||
| internal static class ValueMappingExtensions | ||
| { | ||
| internal static object Mapping(this @Value value, Type targetType) | ||
| { | ||
| Type mapType = null; | ||
| switch (targetType.Name) | ||
| { | ||
| case "Bool": | ||
| return value.BVal; | ||
| case "Int64": | ||
| return value.IVal; | ||
| case "Double": | ||
| return value.FVal; | ||
| case "String": | ||
| return Encoding.UTF8.GetString(value.SVal); | ||
| case "Nebula.Common.Date": | ||
| return value.DVal; | ||
| case "Nebula.Common.Time": | ||
| return value.TVal; | ||
| case "DateTime": | ||
| return value.DtVal; | ||
| case "Vertex": | ||
| return new NotImplementedException(); //value.VVal; | ||
| case "Edge": | ||
| return new NotImplementedException(); // value.EVal; | ||
| case "Path": | ||
| return new NotImplementedException(); // value.PVal; | ||
| case "Dictionary": | ||
| return new NotImplementedException(); //value.MVal; | ||
| case "HashSet": | ||
| return new NotImplementedException(); //value.UVal; | ||
| case "DataSet": | ||
| return new NotImplementedException(); //value.GVal; | ||
| case "Geography": | ||
| return new NotImplementedException(); //value.GgVal; | ||
| case "Duration": | ||
| return new NotImplementedException(); //value.DuVal; | ||
| case "List`1"://List<T> | ||
| mapType = targetType.GetGenericArguments()[0]; | ||
| if (mapType.Name== "Int64") | ||
| { | ||
| return value.LVal.Values.Select(x => x.Mapping(mapType)).Cast<long>().ToList(); | ||
| } | ||
| if (mapType.Name == "String") | ||
| { | ||
| return value.LVal.Values.Select(x => x.Mapping(mapType)).Cast<string>().ToList(); | ||
| } | ||
| return new TypeLoadException(); | ||
| default: | ||
| if (targetType.IsArray)//数组 | ||
| { | ||
| mapType = targetType.GetElementType(); | ||
| if (mapType.Name == "Int64") | ||
| { | ||
| return value.LVal.Values.Select(x => x.Mapping(mapType)).Cast<long>().ToArray(); | ||
| } | ||
| if (mapType.Name == "String") | ||
| { | ||
| return value.LVal.Values.Select(x => x.Mapping(mapType)).Cast<string>().ToArray(); | ||
| } | ||
| return new TypeLoadException(); | ||
| } | ||
| return new TypeLoadException(); | ||
| } | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// 将一个对象转换为指定类型 | ||
| /// </summary> | ||
| /// <param name="obj">待转换的对象</param> | ||
| /// <param name="type">目标类型</param> | ||
| /// <returns>转换后的对象</returns> | ||
| private static object ConvertToObject(object obj, Type type) | ||
| { | ||
| if (type == null) return obj; | ||
| if (obj == null) return type.IsValueType ? Activator.CreateInstance(type) : null; | ||
|
|
||
| Type underlyingType = Nullable.GetUnderlyingType(type); | ||
| // 如果待转换对象的类型与目标类型兼容，则无需转换 | ||
| if (type.IsInstanceOfType(obj)) | ||
| { | ||
| return obj; | ||
| } | ||
| // 如果待转换的对象的基类型为枚举 | ||
| else if ((underlyingType ?? type).IsEnum) | ||
| { | ||
| // 如果目标类型为可空枚举，并且待转换对象为null 则直接返回null值 | ||
| if (underlyingType != null && string.IsNullOrEmpty(obj.ToString())) | ||
| { | ||
| return null; | ||
| } | ||
| else | ||
| { | ||
| return Enum.Parse(underlyingType ?? type, obj.ToString()); | ||
| } | ||
| } | ||
| // 如果目标类型的基类型实现了IConvertible，则直接转换 | ||
| else if (typeof(IConvertible).IsAssignableFrom(underlyingType ?? type)) | ||
| { | ||
| try | ||
| { | ||
| return Convert.ChangeType(obj, underlyingType ?? type, null); | ||
| } | ||
| catch | ||
| { | ||
| return underlyingType == null ? Activator.CreateInstance(type) : null; | ||
| } | ||
| } | ||
| else | ||
| { | ||
| TypeConverter converter = TypeDescriptor.GetConverter(type); | ||
| if (converter.CanConvertFrom(obj.GetType())) | ||
| { | ||
| return converter.ConvertFrom(obj); | ||
| } | ||
| ConstructorInfo constructor = type.GetConstructor(Type.EmptyTypes); | ||
| if (constructor != null) | ||
| { | ||
| object o = constructor.Invoke(null); | ||
| PropertyInfo[] propertys = type.GetProperties(); | ||
| Type oldType = obj.GetType(); | ||
| foreach (PropertyInfo property in propertys) | ||
| { | ||
| PropertyInfo p = oldType.GetProperty(property.Name); | ||
| if (property.CanWrite && p != null && p.CanRead) | ||
| { | ||
| property.SetValue(o, ConvertToObject(p.GetValue(obj, null), property.PropertyType), null); | ||
| } | ||
| } | ||
| return o; | ||
| } | ||
| } | ||
| return obj; | ||
| } | ||
|
|
||
| } | ||
| } |
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