public static void RememberTenant(int tenantId)
{
string redisAllTenantIdsSetKey = RedisConfig.TotalUseTimerTenantIds;
int systemTenantId = RedisConfig.UPaasSystemTenantId;
RedisCacheHelper.SAdd(systemTenantId, redisAllTenantIdsSetKey, tenantId.ToString());
}
public static void InitialJobs(string jobAppName)
{
string redisAllTenantIdsSetKey = RedisConfig.TotalUseTimerTenantIds;
int systemTenantId = RedisConfig.UPaasSystemTenantId;
var members = RedisCacheHelper.SMembers(systemTenantId, redisAllTenantIdsSetKey);
if (members == null || members.Count == 0)
{
return;
}
members = members.Distinct().ToList();
foreach (var member in members)
{
if (!member.ToInt().HasValue)
{
continue;
}
var tenantId = member.ToInt().Value;
string redisKey = MakeRedisKey(tenantId, jobAppName);
var redisContents = RedisCacheHelper.GetHRedis(tenantId, redisKey);
foreach (var kv in redisContents)
{
var infos = GetJobValue(kv.Value);
if (infos == null || infos.Item2 < DateTime.Now)
{
RedisCacheHelper.DelHRedis(tenantId, redisKey, kv.Key);
continue;
}
//将redis的数据加载到服务器内存
AddJob(new JobArgs()
{
TenantId = tenantId,
OperatorId = infos.Item1,
JobKey = kv.Key,
RunTime = infos.Item2,
Job = infos.Item3,
JobAppName = jobAppName
}, true);
}
}
}
public static bool AddJob(JobArgs args, bool fromRedis = false)
{
ArgumentHelper.AssertValuesPositive(args.TenantId);
ArgumentHelper.AssertNotNullOrEmpty(args.JobKey);
ArgumentHelper.AssertNotNullOrEmpty(args.JobAppName);
ArgumentHelper.AssertNotNull(args.Job, "job must not null");
string redisKey = MakeRedisKey(args.TenantId, args.JobAppName);
string redisLockKey = MakeLockKey(args.TenantId, args.JobKey, args.JobAppName);
//不是从redis加载的需要保存到redis，如果是从redis加载则不用再回写了
if (!fromRedis)
{
string redisJobValue = MakeJobValue(args.OperatorId, args.RunTime, args.Job);
RedisCacheHelper.SetHRedis(args.TenantId, redisKey, args.JobKey, redisJobValue);
}
JobManager.AddJob(
() =>
{
//加分布式锁
//获取Key 对应的Value。
//拆Value，获取Runtime
//比较runtime，如果在允许的时间差范围内，则执行。否则，return
//执行完，删掉jobKey
//释放分布式锁
ApplicationContext.Current.TenantId = args.TenantId;
ApplicationContext.Current.UserId = args.OperatorId;
ApplicationContext.Current.ApplicationName = args.JobAppName;
var lockRes = DistributeRedisLock.TryLock(args.TenantId, redisLockKey, "", args.LimitSeconds);
if (!lockRes)
{
LogHelper.Instance.Debug($"定时任务未执行，加锁失败。LockKey：{redisLockKey}，JobKey：{args.JobKey}");
return;
}
try
{
var jobValue = RedisCacheHelper.GetHRedis(args.TenantId, redisKey, args.JobKey);
if (string.IsNullOrEmpty(jobValue))
{
LogHelper.Instance.Debug($"定时任务未执行，Key不存在。{args.JobKey}");
return;
}
var jobInfo = GetJobValue(jobValue);
if (jobInfo == null)
{
LogHelper.Instance.Debug($"定时任务未执行，JobInfo为空。JobKey:{args.JobKey}, JobValue:{jobValue}");
return;
}
//比如，一个Job的实际执行时间是12:00:00，Redis里存的是12:00:00，实际FluentScheduler也是12:00:00触发执行的。
//但是执行到比较时间这块，可能是12:00:05了（可能要排队、或者性能问题等），导致时间不匹配。因此，我们允许时间出现轻微误差
//但是，如果时间间隔超过该轻微误差（1分钟），则认为时间不匹配
if (Math.Abs((jobInfo.Item2 - DateTime.Now).TotalSeconds) >= 60)
{
LogHelper.Instance.Debug($"定时任务未执行，时间不匹配。JobKey:{args.JobKey}, JobValue:{jobValue}");
return;
}
args.Job.Execute();
RedisCacheHelper.DelHRedis(args.TenantId, redisKey, args.JobKey);
LogHelper.Instance.Debug($"执行定时任务成功。JobKey：{args.JobKey}，JobValue{jobValue}");
}
catch (Exception ex)
{
LogHelper.Instance.Error($"执行定时任务异常。JobKey：{args.JobKey}，EX：{ex.Message}");
}
finally
{
DistributeRedisLock.UnLock(args.TenantId, redisLockKey, "");
}
},
(schedule) =>
{
RememberTenant(args.TenantId);
schedule.WithName(args.JobKey).ToRunOnceAt(args.RunTime);
});
return(true);
}
public static bool DeleteJob(int tenantId, string jobKey, string jobAppName)
{
string redisKey = MakeRedisKey(tenantId, jobAppName);
return(RedisCacheHelper.DelHRedis(tenantId, redisKey, jobKey) > 0);
}