private void RestoreToAvailable()
{
bool isRestored = false;
if (UnavailableException != null)
{
lock (UnavailableLock)
{
if (UnavailableException != null)
{
UnavailableException = null;
UnavailableTime = null;
isRestored = true;
}
}
}
if (isRestored)
{
lock (_allObjectsLock)
_allObjects.ForEach(a => a.LastGetTime = a.LastReturnTime = new DateTime(2000, 1, 1));
Policy.OnAvailable();
TestTrace.WriteLine($"【{Policy.Name}】已恢复工作", ConsoleColor.DarkGreen);
}
}
/// <summary>
/// 后台定时检查可用性
/// </summary>
/// <param name="interval"></param>
private void CheckAvailable(int interval)
{
var ts = new ThreadStart(() =>
{
if (UnavailableException != null)
{
TestTrace.WriteLine($"【{Policy.Name}】恢复检查时间：{DateTime.Now.AddSeconds(interval)}", ConsoleColor.DarkYellow);
}
while (UnavailableException != null)
{
if (running == false)
{
return;
}
Thread.CurrentThread.Join(TimeSpan.FromSeconds(interval));
if (running == false)
{
return;
}
try
{
var conn = GetFree(false);
if (conn == null)
{
throw new Exception($"CheckAvailable 无法获得资源，{this.Statistics}");
}
try
{
if (Policy.OnCheckAvailable(conn) == false)
{
throw new Exception("CheckAvailable 应抛出异常，代表仍然不可用。");
}
break;
}
finally
{
Return(conn);
}
}
catch (Exception ex)
{
TestTrace.WriteLine($"【{Policy.Name}】仍然不可用，下一次恢复检查时间：{DateTime.Now.AddSeconds(interval)}，错误：({ex.Message})", ConsoleColor.DarkYellow);
}
}
RestoreToAvailable();
});
new Thread(ts)
{
IsBackground = true
}.Start();
}
/// <summary>
/// 后台定时检查可用性
/// </summary>
/// <param name="interval"></param>
private void CheckAvailable(int interval)
{
new Thread(() =>
{
if (UnavailableException != null)
{
TestTrace.WriteLine($"【{Policy.Name}】Next recovery time：{DateTime.Now.AddSeconds(interval)}", ConsoleColor.DarkYellow);
}
while (UnavailableException != null)
{
if (running == false)
{
return;
}
Thread.CurrentThread.Join(TimeSpan.FromSeconds(interval));
if (running == false)
{
return;
}
try
{
var conn = GetFree(false);
if (conn == null)
{
throw new Exception(CoreStrings.Available_Failed_Get_Resource("CheckAvailable", this.Statistics));
}
try
{
if (Policy.OnCheckAvailable(conn) == false)
{
throw new Exception(CoreStrings.Available_Thrown_Exception("CheckAvailable"));
}
break;
}
finally
{
Return(conn);
}
}
catch (Exception ex)
{
TestTrace.WriteLine($"【{Policy.Name}】Next recovery time: {DateTime.Now.AddSeconds(interval)} ({ex.Message})", ConsoleColor.DarkYellow);
}
}
RestoreToAvailable();
}).Start();
}
