1
我有两个wcf服务Client.svc和Admin.svc。 客户端中的方法每5秒钟调用一次admin服务方法。并且由客户端调用的Admin方法验证，如果在5秒内未调用此方法，则更新状态为“NotResponding”的数据库，否则使用“IsAlive”值更新它。如何每5秒钟调用一次方法？
所有这些都应该在一个单独的线程上完成。
我写了一些代码，其中客户端使用Timer每5秒调用一次该方法。
public static void RegisterHeartBeat(PingRequest pingRequest)
{
try
{
string heartBeatInterval = Phoenix.API.Utility.ConfigReader.GetAppSettingsValue("HeartBeatInterval");
int timeInSeconds = -1;
Int32.TryParse(heartBeatInterval, out timeInSeconds);
if (timeInSeconds != -1)
{
TimerCallback timerCallHeartBeat = new TimerCallback(CallRegisterHeartBeat);
Timer timer = new Timer(timerCallHeartBeat, pingRequest, 0, (timeInSeconds * 1000)); //Multiplying by 1000, converts seconds to milliseconds
}
else
{
Exception ex = new Exception("HeartBeatInterval is not configured in web.config file");
Phoenix.Client.API.BLL.Common.CommonUtility.CreateResultAndLogClientException(null, null, ex);
}
}
catch (Exception ex)
{
Phoenix.Client.API.BLL.Common.CommonUtility.CreateResultAndLogClientException(null, null, ex);
}
}
private static void CallRegisterHeartBeat(object state)
{
PhoenixClientBLL.Admin.InternalClient internalClient = new PhoenixClientBLL.Admin.InternalClient("BasicHttpBinding_IInternal");
if (state != null)
{
//AdminAPI accepts Admin.PingRequest parameter which has a different format than ClientAPI PingRequest.
//Thus, a new object of admin ping request type is created.
Phoenix.API.ClientServiceContracts.DataContracts.PingRequest pingRequestDC = state as Phoenix.API.ClientServiceContracts.DataContracts.PingRequest;
//AdminAPI
PhoenixClientBLL.Admin.PingRequest pingRequest = new PhoenixClientBLL.Admin.PingRequest();
//Test Agent ID
pingRequest.TestAgentId = Guid.Parse(pingRequestDC.TestAgentId);
//Test Agent Status is not set because it will be decided in ADMIN API as per the interval difference.
internalClient.RegisterHeartBeat(pingRequest);
}
}
在管理中，我检查的最后更新日期与当前的日期与时间相应地更新数据库的差异。
public static void RegisterHeartBeat(PingRequest pingRequest)
{
int status = 0;
DateTime startTime, endTime;
int testAgentId = -1;
string heartBeatIntervalValue = Phoenix.API.Utility.ConfigReader.GetAppSettingsValue("HeartBeatInterval");
int heartBeatInterval = -1;
if(String.IsNullOrEmpty(heartBeatIntervalValue))
{
Common.CommonUtility.CreateResultAndLogException(null, null, new Exception("HeartBeatInterval is not configured in the configuration file"));
}
else
{
try
{
string key = pingRequest.TestAgentId.ToString();
if (!String.IsNullOrEmpty(key))
{
if (!heartBeatTimeStamp.ContainsKey(key))
{
heartBeatTimeStamp.Add(key, System.DateTime.Now);
}
else
{
endTime = DateTime.Now;
if (heartBeatTimeStamp[key].HasValue)
{
startTime = heartBeatTimeStamp[key].Value;
var timeDiff = new TimeSpan(endTime.Ticks - startTime.Ticks);
//Check the configured heart beat interval value
Int32.TryParse(heartBeatIntervalValue, out heartBeatInterval);
if (heartBeatInterval != -1)
{
if (timeDiff.Seconds > heartBeatInterval)
{
// add update NotResponding = 3 ..
Int32.TryParse(pingRequest.TestAgentId.ToString(), out testAgentId);
//If Test Agent ID is converted into integer than update table else log the error.
if (testAgentId != -1)
{
status = DAO.TestAgentDAO.RegisterHeartBeat(testAgentId, (int)TestAgentStatus.NotResponding);
}
else
{
Common.CommonUtility.CreateResultAndLogException(null, null, new Exception("Cannot convert Test Agent ID Data type from GUID to Integer"));
}
//Sql Error
if (0 != status)
{
Common.CommonUtility.CreateResultAndLogSqlError(null, status, null);
}
}
else
{
// add update IsAlive= 4
Int32.TryParse(pingRequest.TestAgentId.ToString(), out testAgentId);
//If Test Agent ID is converted into integer than update table else log the error.
if (testAgentId != -1)
{
status = DAO.TestAgentDAO.RegisterHeartBeat(testAgentId, (int)TestAgentStatus.IsAlive);
}
else
{
Common.CommonUtility.CreateResultAndLogException(null, null, new Exception("Cannot convert Test Agent ID Data type from GUID to Integer"));
}
//Sql Error
if (0 != status)
{
Common.CommonUtility.CreateResultAndLogSqlError(null, status, null);
}
}
}
else
{
Common.CommonUtility.CreateResultAndLogException(null, null, new Exception("Invalid HeartBeatInterval Value"));
}
}
}
}
else
{
Common.CommonUtility.CreateResultAndLogException(null, null, new Exception("Test Agent ID is incorrect or does not exists"));
}
}
catch (Exception ex)
{
Common.CommonUtility.CreateResultAndLogException(null, null, ex);
}
}
}
但我的定时器一个奇怪的行为方式，从不调用管理方法.. 能否请你检查一下为什么？或任何其他逻辑需要在这里实施。
感谢 普里