public WebBackgroundJobImpl Execute(string methodName, ArrayImpl parameters, string key = "", string description = "")
{
WebBackgroundJob job = new WebBackgroundJob();
WebBackgroundJobImpl jobImpl = new WebBackgroundJobImpl(job);
if (key != null)
{
job.Key = key;
}
if (description != null)
{
job.Description = description;
}
job.ExecutionParameters = new IValue[0];
if (parameters != null)
{
job.ExecutionParameters = new IValue[parameters.Count()];
int index = 0;
foreach (IValue cv in parameters)
{
job.ExecutionParameters[index] = cv;
index++;
}
}
job.MethodName = methodName;
ThreadPool.QueueUserWorkItem(new WaitCallback(WebBackgroundJobsManager.ExecuteJob), job);
return(jobImpl);
}
public static void ExecuteJob(object stateInfo)
{
WebBackgroundJob job = (WebBackgroundJob)stateInfo;
System.Collections.Hashtable syncJobsKeys;
syncJobsKeys = System.Collections.Hashtable.Synchronized(jobsKeys);
if (job.Key != "" && job.Key != null)
{
// Пробуем вставить в таблицу ключей
//, если вставка неудачна, значит фоновое задание уже выполняется
try
{
syncJobsKeys.Add(job.Key, job.Key);
}
catch (ArgumentException)
{
// Такое значение уже есть в списке, не запускаем задание
return;
}
}
// Заполняем значения работы и вставляем ее в список
System.Collections.Hashtable syncJobs = System.Collections.Hashtable.Synchronized(jobs);
syncJobs.Add(job.UUID, job);
job.Begin = DateTime.Now;
try
{
AspNetHostEngine engine = new AspNetHostEngine();
engine.CallCommonModuleProcedure(job.MethodName, job.ExecutionParameters);
job.State = BackgroundJobState.Completed;
job.ExecutionParameters = null;
}
catch (ScriptEngine.ScriptException ex)
{
job.ErrorInfo = new ExceptionInfoContext(ex);
job.State = BackgroundJobState.Failed;
System.IO.TextWriter logWriter = AspNetLog.Open();
AspNetLog.Write(logWriter, "Error executing background job ");
AspNetLog.Write(logWriter, ex.ToString());
AspNetLog.Close(logWriter);
}
catch (Exception ex)
{
job.State = BackgroundJobState.Failed;
System.IO.TextWriter logWriter = AspNetLog.Open();
AspNetLog.Write(logWriter, "Error executing background job ");
AspNetLog.Write(logWriter, ex.ToString());
AspNetLog.Close(logWriter);
}
finally
{
job.End = DateTime.Now;
try
{
syncJobs.Remove(job.UUID);
}
catch { /* Ничего не делаем*/ }
try
{
if (job.Key != null)
{
syncJobsKeys.Remove(job.Key);
}
}
catch { /* Ничего не делаем*/ }
}
}
public WebBackgroundJobImpl(WebBackgroundJob job)
{
_job = job;
}
public static void ExecuteJob(object stateInfo)
{
WebBackgroundJob job = (WebBackgroundJob)stateInfo;
if (job.Key != "" && job.Key != null)
{
// Пробуем вставить в таблицу ключей
//, если вставка неудачна, значит фоновое задание уже выполняется
if (!jobsKeys.TryAdd(job.Key, job.Key))
{
// Такое значение уже есть в списке, не запускаем задание?
throw new RuntimeException("Фоновое задание с таким значением ключа уже выполняется");
}
}
// Заполняем значения работы и вставляем ее в список
jobs.TryAdd(job.UUID, job);
job.Begin = DateTime.Now;
AspNetHostEngine engine = null;
try
{
if (!engines.TryDequeue(out engine))
{
throw new RuntimeException("cannot deque engine");
}
engine.CallCommonModuleProcedure(job.MethodName, job.ExecutionParameters);
job.State = BackgroundJobState.Completed;
job.ExecutionParameters = null;
}
catch (ScriptEngine.ScriptException ex)
{
job.ErrorInfo = new ExceptionInfoContext(ex);
job.State = BackgroundJobState.Failed;
System.IO.TextWriter logWriter = AspNetLog.Open();
AspNetLog.Write(logWriter, "Error executing background job ");
AspNetLog.Write(logWriter, ex.ToString());
AspNetLog.Close(logWriter);
}
catch (Exception ex)
{
job.State = BackgroundJobState.Failed;
System.IO.TextWriter logWriter = AspNetLog.Open();
AspNetLog.Write(logWriter, "Error executing background job ");
AspNetLog.Write(logWriter, ex.ToString());
AspNetLog.Close(logWriter);
}
finally
{
job.End = DateTime.Now;
if (engine != null)
{
engines.Enqueue(engine);
}
try
{
WebBackgroundJob outjob;
jobs.TryRemove(job.UUID, out outjob);
}
catch { /* Ничего не делаем*/ }
try
{
string outStr;
if (job.Key != null && job.Key != "")
{
jobsKeys.TryRemove(job.Key, out outStr);
}
}
catch { /* Ничего не делаем*/ }
}
}
