154 lines
4.9 KiB
C#
154 lines
4.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using CYQ.Data.Cache;
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using CYQ.Data.Table;
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using CYQ.Data.Tool;
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namespace CYQ.Data.Cache
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{
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/// <summary>
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/// MemCache·Ö²¼Ê½»º´æÀà
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/// </summary>
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internal class MemCache : CacheManage
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{
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MemcachedClient client;
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internal MemCache()
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{
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if (string.IsNullOrEmpty(AppConfig.Cache.MemCacheServers))
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{
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string err = "AppConfig.Cache.MemCacheServers cant' be Empty!";
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Log.WriteLogToTxt(err, LogType.Cache);
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Error.Throw(err);
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}
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client = MemcachedClient.Create(AppConfig.Cache.MemCacheServers);
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if (client.hostServer.HostList.Count == 0)
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{
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string err = "AppConfig.Cache.MemCacheServers can't find the host for service : " + AppConfig.Cache.MemCacheServers;
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Log.WriteLogToTxt(err, LogType.Cache);
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Error.Throw(err);
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}
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if (!string.IsNullOrEmpty(AppConfig.Cache.MemCacheServersBak))
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{
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MemcachedClient clientBak = MemcachedClient.Create(AppConfig.Cache.MemCacheServersBak);
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client.hostServer.hostServerBak = clientBak.hostServer;
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}
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}
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public override bool Set(string key, object value)
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{
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return Set(key, value, 60 * 24 * 30);
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}
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public override bool Set(string key, object value, double cacheMinutes)
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{
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return Set(key, value, cacheMinutes, null);
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}
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public override bool Set(string key, object value, double cacheMinutes, string fileName)
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{
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if (string.IsNullOrEmpty(key)) { return false; }
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if (value == null) { return Remove(key); }
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return client.Set(key, value, DateTime.Now.AddMinutes(cacheMinutes));
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}
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DateTime allowCacheTableTime = DateTime.Now;
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private MDataTable cacheInfoTable = null;
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public override MDataTable CacheInfo
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{
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get
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{
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if (cacheInfoTable == null || DateTime.Now > allowCacheTableTime)
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{
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#region Create Table
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MDataTable cacheTable = new MDataTable();
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Dictionary<string, Dictionary<string, string>> status = client.Stats();
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if (status != null)
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{
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foreach (KeyValuePair<string, Dictionary<string, string>> item in status)
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{
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if (item.Value.Count > 0)
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{
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MDataTable dt = MDataTable.CreateFrom(item.Value);
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if (cacheTable.Columns.Count == 0)//µÚÒ»´Î
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{
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cacheTable = dt;
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}
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else
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{
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cacheTable.JoinOnName = "Key";
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cacheTable = cacheTable.Join(dt, "Value");
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}
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cacheTable.Columns["Value"].ColumnName = item.Key;
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}
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}
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}
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cacheTable.TableName = "MemCache";
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allowCacheTableTime = DateTime.Now.AddSeconds(5);
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#endregion
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cacheInfoTable = cacheTable;
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}
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return cacheInfoTable;
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}
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}
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public override void Clear()
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{
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client.FlushAll();
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}
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public override bool Contains(string key)
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{
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if (string.IsNullOrEmpty(key)) { return false; }
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return Get(key) != null;
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}
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//int count = -1;
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//DateTime allowGetCountTime = DateTime.Now;
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public override int Count
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{
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get
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{
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int count = 0;
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MDataRow row = CacheInfo.FindRow("Key='curr_items'");
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if (row != null)
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{
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for (int i = 1; i < row.Columns.Count; i++)
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{
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count += int.Parse(row[i].StringValue);
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}
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}
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return count;
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}
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}
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public override object Get(string key)
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{
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if (string.IsNullOrEmpty(key)) { return null; }
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return client.Get(key);
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}
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public override bool Remove(string key)
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{
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if (string.IsNullOrEmpty(key)) { return false; }
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return client.Delete(key);
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}
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public override string WorkInfo
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{
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get
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{
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return client.WorkInfo;
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}
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}
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public override CacheType CacheType
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{
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get { return CacheType.MemCache; }
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}
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}
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}
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