123 lines
4.2 KiB
C#
123 lines
4.2 KiB
C#
#region copyright
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//------------------------------------------------------------------------------
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// 此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
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// 此代码版权（除特别声明外的代码）归作者本人Diego所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议
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// Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
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// Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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// 使用文档：https://diego2098.gitee.io/thingsgateway-docs/
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// QQ群：605534569
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//------------------------------------------------------------------------------
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#endregion
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//------------------------------------------------------------------------------
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// 此代码版权（除特别声明或在XREF结尾的命名空间的代码）归作者本人若汝棋茗所有
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// 源代码使用协议遵循本仓库的开源协议及附加协议，若本仓库没有设置，则按MIT开源协议授权
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// CSDN博客：https://blog.csdn.net/qq_40374647
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// 哔哩哔哩视频：https://space.bilibili.com/94253567
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// Gitee源代码仓库：https://gitee.com/RRQM_Home
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// Github源代码仓库：https://github.com/RRQM
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// API首页：http://rrqm_home.gitee.io/touchsocket/
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// 交流QQ群：234762506
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// 感谢您的下载和使用
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//------------------------------------------------------------------------------
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//------------------------------------------------------------------------------
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using System.Collections.Concurrent;
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namespace ThingsGateway.Foundation.Adapter.OPCDA;
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/// <summary>
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/// DictionaryExtension
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/// </summary>
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internal static class DictionaryExtension
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{
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#region 字典扩展
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/// <summary>
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/// 移除满足条件的项目。
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/// </summary>
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/// <typeparam name="TKey"></typeparam>
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/// <typeparam name="TValue"></typeparam>
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/// <param name="pairs"></param>
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/// <param name="func"></param>
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/// <returns></returns>
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internal static int RemoveWhen<TKey, TValue>(this ConcurrentDictionary<TKey, TValue> pairs, Func<KeyValuePair<TKey, TValue>, bool> func)
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{
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var list = new List<TKey>();
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foreach (var item in pairs)
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{
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if (func?.Invoke(item) == true)
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{
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list.Add(item.Key);
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}
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}
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var count = 0;
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foreach (var item in list)
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{
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if (pairs.TryRemove(item, out _))
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{
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count++;
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}
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}
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return count;
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}
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#if NET45_OR_GREATER || NETSTANDARD2_0_OR_GREATER
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/// <summary>
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/// 尝试添加
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/// </summary>
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/// <typeparam name="Tkey"></typeparam>
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/// <typeparam name="TValue"></typeparam>
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/// <param name="dictionary"></param>
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/// <param name="tkey"></param>
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/// <param name="value"></param>
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/// <returns></returns>
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internal static bool TryAdd<Tkey, TValue>(this Dictionary<Tkey, TValue> dictionary, Tkey tkey, TValue value)
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{
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if (dictionary.ContainsKey(tkey))
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{
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return false;
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}
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dictionary.Add(tkey, value);
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return true;
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}
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#endif
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/// <summary>
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/// 尝试添加
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/// </summary>
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/// <typeparam name="Tkey"></typeparam>
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/// <typeparam name="TValue"></typeparam>
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/// <param name="dictionary"></param>
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/// <param name="tkey"></param>
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/// <param name="value"></param>
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/// <returns></returns>
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internal static void AddOrUpdate<Tkey, TValue>(this Dictionary<Tkey, TValue> dictionary, Tkey tkey, TValue value)
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{
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if (dictionary.ContainsKey(tkey))
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{
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dictionary[tkey] = value;
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}
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else
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{
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dictionary.Add(tkey, value);
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}
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}
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/// <summary>
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/// 获取值。如果键不存在，则返回默认值。
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/// </summary>
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/// <typeparam name="Tkey"></typeparam>
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/// <typeparam name="TValue"></typeparam>
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/// <param name="dictionary"></param>
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/// <param name="tkey"></param>
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/// <returns></returns>
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internal static TValue GetValue<Tkey, TValue>(this Dictionary<Tkey, TValue> dictionary, Tkey tkey)
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{
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return dictionary.TryGetValue(tkey, out var value) ? value : default;
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}
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#endregion 字典扩展
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} |