public Task InsertAsync(BackgroundJobInfo jobInfo)
{
jobInfo.Id = Interlocked.Increment(ref _lastId);
_jobs[jobInfo.Id] = jobInfo;
return(Task.FromResult(0));
}
public Task UpdateAsync(BackgroundJobInfo jobInfo)
{
if (jobInfo.IsAbandoned)
{
return(DeleteAsync(jobInfo));
}
return(Task.FromResult(0));
}
private void TryProcessJob(BackgroundJobInfo jobInfo)
{
try
{
jobInfo.TryCount++;
jobInfo.LastTryTime = Clock.Now;
var jobType = Type.GetType(jobInfo.JobType);
var job = _serviceProvider.GetService(jobType);
try
{
var jobExecuteMethod = job.GetType().GetTypeInfo().GetMethod("Execute");
var argsType = jobExecuteMethod.GetParameters()[0].ParameterType;
// var argsObj = _serializer.Deserialize(jobInfo.JobArgs, argsType);
var argsObj = JsonConvert.DeserializeObject(jobInfo.JobArgs, argsType);
jobExecuteMethod.Invoke(job, new[] { argsObj });
AsyncHelper.RunSync(() => _store.DeleteAsync(jobInfo));
}
catch (Exception ex)
{
_logger.LogWarning(ex.Message, ex);
var nextTryTime = jobInfo.CalculateNextTryTime();
if (nextTryTime.HasValue)
{
jobInfo.NextTryTime = nextTryTime.Value;
}
else
{
jobInfo.IsAbandoned = true;
}
TryUpdate(jobInfo);
_eventBus.Publish(
new HandleEventException(
new BackgroundJobException(
"A background job execution is failed. See inner exception for details. See BackgroundJob property to get information on the background job.",
ex
)
{
BackgroundJob = jobInfo,
JobObject = job
}));
}
}
catch (Exception ex)
{
_logger.LogWarning(ex.ToString(), ex);
jobInfo.IsAbandoned = true;
TryUpdate(jobInfo);
}
}
public Task DeleteAsync(BackgroundJobInfo jobInfo)
{
if (!_jobs.ContainsKey(jobInfo.Id))
{
return(Task.FromResult(0));
}
_jobs.TryRemove(jobInfo.Id, out _);
return(Task.FromResult(0));
}
private void TryUpdate(BackgroundJobInfo jobInfo)
{
try
{
_store.UpdateAsync(jobInfo);
}
catch (Exception updateEx)
{
_logger.LogWarning(updateEx.ToString(), updateEx);
}
}
public async Task <string> EnqueueAsync <TJob, TArgs>(TArgs args, BackgroundJobPriority priority = BackgroundJobPriority.Normal, TimeSpan?delay = null)
where TJob : IBackgroundJob <TArgs>
{
var jobInfo = new BackgroundJobInfo
{
JobType = typeof(TJob).AssemblyQualifiedName,
JobArgs = args.ToJsonString(),
Priority = priority
};
if (delay.HasValue)
{
jobInfo.NextTryTime = Clock.Now.Add(delay.Value);
}
await _store.InsertAsync(jobInfo);
return(jobInfo.Id.ToString());
}
public Task UpdateAsync(BackgroundJobInfo jobInfo)
{
return(Task.FromResult(0));
}
public Task InsertAsync(BackgroundJobInfo jobInfo)
{
return(Task.FromResult(0));
}