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232 lines
7.9 KiB
232 lines
7.9 KiB
using Serilog;
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using System;
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using System.Collections.Generic;
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using System.Data;
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using System.IO;
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using System.Linq;
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using System.Linq.Expressions;
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using System.Reflection;
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using System.Security.Cryptography;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace Wood.Util
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{
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//public class PagedResult<T>
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//{
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// public List<T> Items { get; set; }
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// public int TotalItems { get; set; }
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// public int PageNumber { get; set; }
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// public int PageSize { get; set; }
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// public int TotalPages => (int)Math.Ceiling(TotalItems / (double)PageSize);
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// public bool HasPreviousPage => PageNumber > 1;
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// public bool HasNextPage => PageNumber < TotalPages;
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// public PagedResult()
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// {
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// Items = new List<T>();
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// }
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//}
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//public static class QueryableExtensions
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//{
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// public static PagedResult<T> ToPagedResult<T>(this IQueryable<T> query, int pageNumber, int pageSize)
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// {
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// var result = new PagedResult<T>
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// {
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// PageNumber = pageNumber,
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// PageSize = pageSize,
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// TotalItems = query.Count()
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// };
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// result.Items = query
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// .Skip((pageNumber - 1) * pageSize)
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// .Take(pageSize)
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// .ToList();
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// return result;
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// }
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// public static IQueryable<T> ApplySorting<T>(this IQueryable<T> query, string sortField, string sortDirection)
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// {
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// if (string.IsNullOrEmpty(sortField))
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// return query;
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// var parameter = Expression.Parameter(typeof(T), "x");
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// var property = Expression.Property(parameter, sortField);
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// var lambda = Expression.Lambda(property, parameter);
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// string methodName = sortDirection?.ToLower() == "desc" ? "OrderByDescending" : "OrderBy";
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// var resultExpression = Expression.Call(
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// typeof(Queryable),
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// methodName,
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// new[] { typeof(T), property.Type },
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// query.Expression,
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// Expression.Quote(lambda));
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// return query.Provider.CreateQuery<T>(resultExpression);
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// }
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//}
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//public static class DataTableHelper
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//{
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// /// <summary>
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// /// 将泛型列表转换为DataTable
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// /// </summary>
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// /// <typeparam name="T">实体类型</typeparam>
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// /// <param name="list">泛型列表</param>
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// /// <param name="config">转换配置(可选)</param>
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// /// <returns>DataTable</returns>
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// public static DataTable ToDataTable<T>(this List<T> list, Action<DataTableConfig<T>> config = null)
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// {
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// if (list == null || list.Count == 0)
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// return new DataTable();
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// var tableConfig = new DataTableConfig<T>();
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// config?.Invoke(tableConfig);
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// var dataTable = new DataTable();
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// var properties = GetProperties(typeof(T), tableConfig);
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// // 创建列
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// foreach (var property in properties)
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// {
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// var columnType = Nullable.GetUnderlyingType(property.PropertyType) ?? property.PropertyType;
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// var columnName = tableConfig.ColumnMappings.TryGetValue(property.Name, out var mappedName)
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// ? mappedName
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// : property.Name;
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// var column = new DataColumn(columnName, columnType);
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// dataTable.Columns.Add(column);
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// }
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// // 填充数据
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// foreach (var item in list)
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// {
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// var row = dataTable.NewRow();
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// foreach (var property in properties)
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// {
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// var columnName = tableConfig.ColumnMappings.TryGetValue(property.Name, out var mappedName)
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// ? mappedName
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// : property.Name;
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// var value = property.GetValue(item);
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// row[columnName] = value ?? DBNull.Value;
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// }
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// dataTable.Rows.Add(row);
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// }
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// return dataTable;
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// }
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// /// <summary>
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// /// 获取需要转换的属性列表
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// /// </summary>
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// private static PropertyInfo[] GetProperties(Type type, DataTableConfig config)
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// {
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// var bindingFlags = BindingFlags.Public | BindingFlags.Instance;
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// if (config.IgnoreNonPublicProperties)
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// bindingFlags &= ~BindingFlags.NonPublic;
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// var properties = type.GetProperties(bindingFlags);
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// if (config.IgnoreProperties?.Count > 0)
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// {
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// properties = Array.FindAll(properties, p => !config.IgnoreProperties.Contains(p.Name));
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// }
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// if (config.OnlyIncludeProperties?.Count > 0)
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// {
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// properties = Array.FindAll(properties, p => config.OnlyIncludeProperties.Contains(p.Name));
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// }
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// return properties;
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// }
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// /// <summary>
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// /// 数据转换配置类
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// /// </summary>
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// public class DataTableConfig<T> : DataTableConfig
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// {
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// public new Dictionary<string, string> ColumnMappings { get; } = new Dictionary<string, string>();
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// /// <summary>
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// /// 设置列映射(属性名 -> 列名)
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// /// </summary>
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// public DataTableConfig<T> MapColumn(string propertyName, string columnName)
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// {
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// ColumnMappings[propertyName] = columnName;
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// return this;
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// }
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// /// <summary>
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// /// 设置忽略的属性
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// /// </summary>
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// public new DataTableConfig<T> IgnoreProperty(params string[] propertyNames)
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// {
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// base.IgnoreProperty(propertyNames);
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// return this;
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// }
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// /// <summary>
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// /// 设置只包含的属性
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// /// </summary>
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// public new DataTableConfig<T> OnlyIncludeProperty(params string[] propertyNames)
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// {
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// base.OnlyIncludeProperty(propertyNames);
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// return this;
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// }
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// /// <summary>
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// /// 设置是否忽略非公共属性(默认忽略)
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// /// </summary>
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// public new DataTableConfig<T> SetIgnoreNonPublicProperties(bool ignore = true)
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// {
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// base.SetIgnoreNonPublicProperties(ignore);
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// return this;
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// }
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// }
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// /// <summary>
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// /// 数据转换配置基类
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// /// </summary>
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// public class DataTableConfig
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// {
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// public HashSet<string> IgnoreProperties { get; } = new HashSet<string>();
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// public HashSet<string> OnlyIncludeProperties { get; } = new HashSet<string>();
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// public Dictionary<string, string> ColumnMappings { get; } = new Dictionary<string, string>();
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// public bool IgnoreNonPublicProperties { get; private set; } = true;
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// public DataTableConfig IgnoreProperty(params string[] propertyNames)
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// {
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// foreach (var name in propertyNames)
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// IgnoreProperties.Add(name);
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// return this;
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// }
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// public DataTableConfig OnlyIncludeProperty(params string[] propertyNames)
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// {
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// OnlyIncludeProperties.Clear();
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// foreach (var name in propertyNames)
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// OnlyIncludeProperties.Add(name);
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// return this;
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// }
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// public DataTableConfig SetIgnoreNonPublicProperties(bool ignore = true)
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// {
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// IgnoreNonPublicProperties = ignore;
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// return this;
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// }
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// }
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//}
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}
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