using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading; using Microsoft.Practices.EnterpriseLibrary.Caching; namespace MyCacheServiceLib { /// <summary> /// Manages locking functionality /// </summary> class LockManager { ICacheManager cacheManager; public LockManager(ICacheManager cacheManager) { this.cacheManager = cacheManager; } /// <summary> /// Releases lock for the speficied Key /// </summary> /// <param name="Key"></param> public void ReleaseLock(string Key) { Key = BuildKeyForLock(Key); if (cacheManager.Contains(Key)) { cacheManager.Remove(Key); } } /// <summary> /// Obtains lock for the specified Key /// </summary> /// <param name="Key"></param> /// <returns></returns> public bool SetLock(string Key) { Key = BuildKeyForLock(Key); if (cacheManager.Contains(Key)) return false; cacheManager.Add(Key, Key); return true; } /// <summary> /// Builds Key for locking an object in Cache /// </summary> /// <param name="Key"></param> /// <returns></returns> private string BuildKeyForLock(string Key) { Key = string.Format("Lock_{0}", Key); return Key; } } }
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