static AspNetHostEngine()
{
_assembliesForAttaching = new List <System.Reflection.Assembly>();
System.Collections.Specialized.NameValueCollection appSettings = System.Web.Configuration.WebConfigurationManager.AppSettings;
TextWriter logWriter = AspNetLog.Open(appSettings);
_cachingEnabled = (appSettings["cachingEnabled"] == "true");
AspNetLog.Write(logWriter, "Start assemblies loading.");
foreach (string assemblyName in appSettings.AllKeys)
{
if (appSettings[assemblyName] == "attachAssembly")
{
try
{
_assembliesForAttaching.Add(System.Reflection.Assembly.Load(assemblyName));
}
// TODO: Исправить - должно падать. Если конфиг сайта неработоспособен - сайт не должен быть работоспособен.
catch (Exception ex)
{
AspNetLog.Write(logWriter, "Error loading assembly: " + assemblyName + " " + ex.ToString());
if (appSettings["handlerLoadingPolicy"] == "strict")
{
throw; // Must fail!
}
}
}
}
// Загружаем ASPNetHandler.dll
try
{
_assembliesForAttaching.Add(System.Reflection.Assembly.Load("ASPNETHandler"));
}
// TODO: Исправить - должно падать. Если конфиг сайта неработоспособен - сайт не должен быть работоспособен.
catch (Exception ex)
{
AspNetLog.Write(logWriter, "Error loading assembly: ASPNetHandler" + " " + ex.ToString());
if (appSettings["handlerLoadingPolicy"] == "strict")
{
throw; // Must fail!
}
}
AspNetLog.Write(logWriter, "Stop assemblies loading.");
// ToDo: Загружаем и компилируем общие модули
AspNetLog.Close(logWriter);
}
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 void WaitForCompletion(int?timeout = null)
{
int delta = WebBackgroundJobsManager.CheckInterval;
long timeoutMs = 1000;
if (timeout == null)
{
delta = 0;
}
else
{
timeoutMs = (long)(timeout * 1000);
}
long current = 0;
do
{
System.Threading.Thread.Sleep(WebBackgroundJobsManager.CheckInterval);
current += delta;
} while (current < timeoutMs && State == WebBackgroundJobStateImpl.Active);
System.IO.TextWriter logWriter;
if (State == WebBackgroundJobStateImpl.Failed)
{
logWriter = AspNetLog.Open();
string logStr = ErrorInfo.ModuleName + "`n"
+ ErrorInfo.LineNumber + "`n"
+ ErrorInfo.Description + "`n"
+ ErrorInfo.DetailedDescription;
AspNetLog.Write(logWriter, logStr);
AspNetLog.Close(logWriter);
throw (new Exception("Фоновое задание завершились с ошибкой."));
}
if (State == WebBackgroundJobStateImpl.Completed)
{
return;
}
string exceptionString = "Timeout expires for job: ";
exceptionString += "start date: " + Begin.ToString() + " ";
exceptionString += "method: " + MethodName + " ";
if (Description != null)
{
exceptionString += "description: " + Description + " ";
}
if (Key != null)
{
exceptionString += "key: " + Description + " ";
}
logWriter = AspNetLog.Open();
AspNetLog.Write(logWriter, exceptionString);
AspNetLog.Close(logWriter);
throw (new Exception(exceptionString));
}
public void WaitForCompletion(ArrayImpl backgroundJobs, int?timeout = null)
{
int delta = WebBackgroundJobsManager.CheckInterval;
long timeoutMs = 1000;
if (timeout == null)
{
delta = 0;
}
else
{
timeoutMs = (long)(timeout * 1000);
}
long current = 0;
WebBackgroundJobImpl failedJob = null;
WebBackgroundJobImpl notCompletedJob = null;
do
{
System.Threading.Thread.Sleep(WebBackgroundJobsManager.CheckInterval);
current += delta;
notCompletedJob = null;
foreach (IValue cj in backgroundJobs)
{
if (((WebBackgroundJobImpl)cj).State == WebBackgroundJobStateImpl.Active)
{
notCompletedJob = (WebBackgroundJobImpl)cj;
}
if (((WebBackgroundJobImpl)cj).State == WebBackgroundJobStateImpl.Failed)
{
failedJob = (WebBackgroundJobImpl)cj;
break;
}
}
} while (current < timeoutMs && notCompletedJob != null && failedJob == null);
System.IO.TextWriter logWriter;
if (failedJob != null)
{
logWriter = AspNetLog.Open();
string logStr = failedJob.ErrorInfo.ModuleName + "`n"
+ failedJob.ErrorInfo.LineNumber + "`n"
+ failedJob.ErrorInfo.Description + "`n"
+ failedJob.ErrorInfo.DetailedDescription;
AspNetLog.Write(logWriter, logStr);
AspNetLog.Close(logWriter);
throw (new Exception("Одно или несколько фоновых заданий завершились с ошибкой."));
}
if (notCompletedJob == null)
{
return;
}
string exceptionString = "Timeout expires for job: ";
exceptionString += "start date: " + notCompletedJob.Begin.ToString() + " ";
exceptionString += "method: " + notCompletedJob.MethodName + " ";
if (notCompletedJob.Description != null)
{
exceptionString += "description: " + notCompletedJob.Description + " ";
}
if (notCompletedJob.Key != null)
{
exceptionString += "key: " + notCompletedJob.Description + " ";
}
logWriter = AspNetLog.Open();
AspNetLog.Write(logWriter, exceptionString);
AspNetLog.Close(logWriter);
throw (new Exception(exceptionString));
}
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*/ }
}
}
public AspNetHostEngine()
{
System.Collections.Specialized.NameValueCollection appSettings = System.Web.Configuration.WebConfigurationManager.AppSettings;
// Инициализируем логгирование, если надо
TextWriter logWriter = AspNetLog.Open(appSettings);
AspNetLog.Write(logWriter, "Start loading.");
if (appSettings == null)
{
AspNetLog.Write(logWriter, "appSettings is null");
}
try
{
_hostedScript = new HostedScriptEngine();
// метод настраивает внутренние переменные у SystemGlobalContext
_hostedScript.SetGlobalEnvironment(new NullApplicationHost(), new NullEntryScriptSrc());
_hostedScript.Initialize();
// Размещаем oscript.cfg вместе с web.config. Так наверное привычнее
_hostedScript.CustomConfig = appSettings["configFilePath"] ?? System.IO.Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "oscript.cfg");
//_hostedScript.AttachAssembly(System.Reflection.Assembly.GetExecutingAssembly());
// Аттачим доп сборки. По идее должны лежать в Bin
foreach (System.Reflection.Assembly assembly in _assembliesForAttaching)
{
try
{
_hostedScript.AttachAssembly(assembly);
}
catch (Exception ex)
{
// Возникла проблема при аттаче сборки
AspNetLog.Write(logWriter, "Assembly attaching error: " + ex.Message);
if (appSettings["handlerLoadingPolicy"] == "strict")
{
throw;
}
}
}
//Загружаем библиотечные скрипты aka общие модули
string libPath = ConvertRelativePathToPhysical(appSettings["commonModulesPath"]);
if (libPath != null)
{
string[] files = System.IO.Directory.GetFiles(libPath, "*.os");
foreach (string filePathName in files)
{
_hostedScript.InjectGlobalProperty(System.IO.Path.GetFileNameWithoutExtension(filePathName), ValueFactory.Create(), true);
}
foreach (string filePathName in files)
{
try
{
ICodeSource src = _hostedScript.Loader.FromFile(filePathName);
var compilerService = _hostedScript.GetCompilerService();
var module = compilerService.CreateModule(src);
var loaded = _hostedScript.EngineInstance.LoadModuleImage(module);
var instance = (IValue)_hostedScript.EngineInstance.NewObject(loaded);
_hostedScript.EngineInstance.Environment.SetGlobalProperty(System.IO.Path.GetFileNameWithoutExtension(filePathName), instance);
}
catch (Exception ex)
{
// Возникла проблема при загрузке файла os, логгируем, если логгирование включено
AspNetLog.Write(logWriter, "Error loading " + System.IO.Path.GetFileNameWithoutExtension(filePathName) + " : " + ex.Message);
if (appSettings["handlerLoadingPolicy"] == "strict")
{
throw;
}
}
}
}
}
catch (Exception ex)
{
// Возникла проблема при инициализации
AspNetLog.Write(logWriter, ex.Message);
if (appSettings["handlerLoadingPolicy"] == "strict")
{
throw; // Must fail!
}
}
finally
{
AspNetLog.Write(logWriter, "End loading.");
AspNetLog.Close(logWriter);
}
}
