Был такой заказ. Написан в связке с Postgres, в базе 2 таблицы, основная и для лога. Поле isActive, похоже не пригодилось. Поскольку нет возможности контроллировать из планировщика – работает или нет запущенный процесс.
Модель Task
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unit uTask; interface uses System.Classes; type TTask = class(TObject) private FProcessName: string; FLocation: string; FInterval: integer; FIsSuccessfull: boolean; FIsActive: boolean; FErrorMessage: string; FId: integer; FDateTimeStart: TDateTime; FCountRuns: integer; procedure SetProcessName(const Value: string); procedure SetLocation(const Value: string); procedure SetInterval(const Value: integer); procedure SetErrorMessage(const Value: string); procedure SetIsActive(const Value: boolean); procedure SetIsSuccessfull(const Value: boolean); procedure SetId(const Value: integer); procedure SetDateTimeStart(const Value: TDateTime); procedure SetCountRuns(const Value: integer); public constructor Create(aId: integer; aProcessName, aLocation: string; aInterval: integer; aDateTimeStart: TDateTime; aCountRuns: integer); overload; constructor Create(aProcessName, aLocation: string; aInterval: integer; aDateTimeStart: TDateTime; aCountRuns: integer); overload; constructor Create(aId: integer; aProcessName, aLocation: string; aDateTimeStart: TDateTime); overload; constructor Create(aProcessName, aLocation: string; aDateTimeStart: TDateTime); overload; constructor Create(aId: integer); overload; property Id: integer read FId write SetId; property ProcessName: string read FProcessName write SetProcessName; property Location: string read FLocation write SetLocation; property DateTimeStart: TDateTime read FDateTimeStart write SetDateTimeStart; property CountRunsRest: integer read FCountRuns write SetCountRuns; property Interval: integer read FInterval write SetInterval; // in minutes property IsActive: boolean read FIsActive write SetIsActive; end; implementation uses System.SysUtils; { TTask } constructor TTask.Create(aId: integer; aProcessName, aLocation: string; aInterval: integer; aDateTimeStart: TDateTime; aCountRuns: integer); begin Fid := aId; FProcessName := aProcessName; FLocation := aLocation; FInterval := aInterval; FDateTimeStart := aDateTimeStart; FCountRuns := aCountRuns; end; constructor TTask.Create(aId: integer); begin FId := aId; end; constructor TTask.Create(aProcessName, aLocation: string; aDateTimeStart: TDateTime); begin Fid := -1; FProcessName := aProcessName; FLocation := aLocation; FInterval := -1; FDateTimeStart := aDateTimeStart; FCountRuns := -1; end; constructor TTask.Create(aId: integer; aProcessName, aLocation: string; aDateTimeStart: TDateTime); begin Fid := aId; FProcessName := aProcessName; FLocation := aLocation; FInterval := -1; FDateTimeStart := aDateTimeStart; FCountRuns := -1; end; constructor TTask.Create(aProcessName, aLocation: string; aInterval: integer; aDateTimeStart: TDateTime; aCountRuns: integer); begin FProcessName := aProcessName; FLocation := aLocation; FInterval := aInterval; FDateTimeStart := aDateTimeStart; FCountRuns := aCountRuns; end; procedure TTask.SetCountRuns(const Value: integer); begin FCountRuns := Value; end; procedure TTask.SetDateTimeStart(const Value: TDateTime); begin FDateTimeStart := Value; end; procedure TTask.SetErrorMessage(const Value: string); begin FErrorMessage := Value; end; procedure TTask.SetId(const Value: integer); begin FId := Value; end; procedure TTask.SetInterval(const Value: integer); begin FInterval := Value; end; procedure TTask.SetIsActive(const Value: boolean); begin FIsActive := Value; end; procedure TTask.SetIsSuccessfull(const Value: boolean); begin FIsSuccessfull := Value; end; procedure TTask.SetLocation(const Value: string); begin FLocation := Value; end; procedure TTask.SetProcessName(const Value: string); begin FProcessName := Value; end; end. |
Контроллер TasksController
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unit uTasksController; interface uses System.SysUtils, System.Classes, uTask, Common, System.Generics.Collections, Vcl.ExtCtrls, tlhelp32, ShellAPI, FireDAC.Comp.Client, System.IOUtils; type TTasksController = class(TDataModule) tStart: TTimer; procedure tStartTimer(Sender: TObject); private FFDConnection: TFDConnection; { Private declarations } function IsInstance(aTask: TTask): boolean; procedure LogSuccessLaunch(aTask: TTask); procedure SetFDConnection(const Value: TFDConnection); procedure LogFailedLaunch(aTask: TTask; aErrorMessage: string); function UpdateNextTimeInterval(aTask: TTask): Integer; function LastInsertID(): integer; procedure CreateProcessWin(aCommandLine: string); public { Public declarations } procedure LaunchTask(aTask: TTask); function Start(): TObjectList<TTask>; function All(aPeriod: TPeriod): TObjectList<TTask>; function Active(aPeriod: TPeriod): TObjectList<TTask>; function Successfull(aPeriod: TPeriod): TObjectList<TTask>; function Failed(aPeriod: TPeriod): TObjectList<TTask>; function Add(aTask: TTask; aIsFreeInstanceInside: boolean): integer; procedure Delete(aTask: TTask; aIsFreeInstanceInside: boolean); overload; procedure Delete(aTaskId: integer); overload; procedure Test(); // property FDConnection: TFDConnection read FFDConnection write SetFDConnection; end; implementation uses Winapi.Windows, DateUtils, Vcl.Dialogs; {%CLASSGROUP 'Vcl.Controls.TControl'} {$R *.dfm} function TTasksController.Active(aPeriod: TPeriod): TObjectList<TTask>; var q: TFdquery; begin result := TObjectList<TTask>.Create(true); try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'select * from public."taskSchedule" where "dateTimeStart" between :start and :finish and "isActive"=true'; params.ParamValues['start'] := aPeriod.Start; params.ParamValues['finish'] := aPeriod.Finish; Disconnect(); Open(); while not eof do begin result.Add(TTask.Create( // FieldByName('id').AsInteger, FieldByName('ProcessName').AsString, // FieldByName('Location').AsString, // FieldByName('Interval').AsInteger, // FieldByName('dateTimeStart').AsDateTime, // FieldByName('countRunsRest').AsInteger // )); Next; end; Close(); end; finally q.Free; end; end; function TTasksController.Add(aTask: TTask; aIsFreeInstanceInside: boolean): integer; var q: TFdquery; begin try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; if aTask.Interval = -1 then begin sql.Text := 'INSERT INTO public."taskSchedule"( ' + // '"processName", "location", "dateTimeStart", "countRunsRest") ' + // ' VALUES (:processName, :location, :dateTimeStart, :countRunsRest);'; params.ParamValues['processName'] := aTask.ProcessName; params.ParamValues['location'] := aTask.Location; params.ParamValues['dateTimeStart'] := aTask.DateTimeStart; params.ParamValues['countRunsRest'] := 1; // run once end else begin sql.Text := 'INSERT INTO public."taskSchedule"( ' + // '"processName", "location", "interval", "dateTimeStart", "countRunsRest") ' + // ' VALUES (:processName, :location, :interval, :dateTimeStart, :countRunsRest);'; params.ParamValues['processName'] := aTask.ProcessName; params.ParamValues['location'] := aTask.Location; params.ParamValues['interval'] := aTask.Interval; params.ParamValues['dateTimeStart'] := aTask.DateTimeStart; params.ParamValues['countRunsRest'] := aTask.CountRunsRest; end; ExecSQL; result := LastInsertID(); end; finally q.Free; if aIsFreeInstanceInside then aTask.Free(); end; end; // select "dateTimeStart" from public."taskSchedule" where "dateTimeStart" between now() and function TTasksController.All(aPeriod: TPeriod): TObjectList<TTask>; var q: TFdquery; begin result := TObjectList<TTask>.Create(true); try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'select * from public."taskSchedule" where "dateTimeStart" between :start and :finish'; params.ParamValues['start'] := aPeriod.Start; params.ParamValues['finish'] := aPeriod.Finish; Disconnect(); Open(); while not eof do begin result.Add(TTask.Create( // FieldByName('id').AsInteger, FieldByName('ProcessName').AsString, // FieldByName('Location').AsString, // FieldByName('Interval').AsInteger, // FieldByName('dateTimeStart').AsDateTime, // FieldByName('countRunsRest').AsInteger // )); Next; end; Close(); end; finally q.Free; end; end; procedure TTasksController.CreateProcessWin(aCommandLine: string); var si: TStartupInfo; pi: TProcessInformation; begin begin //commandLine := aCommandLine; //'C:\Windows\System32\cmd.exe'; si := Default(TStartupInfo); si.cb := sizeof(si); CreateProcess(PChar(nil), //no module name (use command line) PChar(aCommandLine), //Command Line nil, //Process handle not inheritable nil, //Thread handle not inheritable False, //Don't inherit handles 0, //No creation flags nil, //Use parent's environment block PChar(nil), //Use parent's starting directory si, //Startup Info pi //Process Info ); end; end; procedure TTasksController.Delete(aTaskId: integer); var q: TFdquery; begin try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'DELETE FROM public."taskSchedule" WHERE id=:id'; params.ParamValues['id'] := aTaskId; ExecSQL; end; finally q.Free; end; end; procedure TTasksController.Delete(aTask: TTask; aIsFreeInstanceInside: boolean); var q: TFdquery; begin try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'DELETE FROM public."taskSchedule" WHERE id=:id'; params.ParamValues['id'] := aTask.Id; ExecSQL; end; finally q.Free; if aIsFreeInstanceInside then aTask.Free(); end; end; function TTasksController.Failed(aPeriod: TPeriod): TObjectList<TTask>; var q: TFdquery; begin result := TObjectList<TTask>.Create(true); try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'select * from public."taskSchedule" where "dateTimeStart" between :start and :finish ' + // ' and id in (SELECT "taskSchedule_id" FROM public."taskScheduleLog" where "isSuccessfull"=false)'; params.ParamValues['start'] := aPeriod.Start; params.ParamValues['finish'] := aPeriod.Finish; Disconnect(); Open(); while not eof do begin result.Add(TTask.Create( // FieldByName('id').AsInteger, FieldByName('ProcessName').AsString, // FieldByName('Location').AsString, // FieldByName('Interval').AsInteger, // FieldByName('dateTimeStart').AsDateTime, // FieldByName('countRunsRest').AsInteger // )); Next; end; Close(); end; finally q.Free; end; end; function TTasksController.IsInstance(aTask: TTask): boolean; var han: THandle; ProcStruct: PROCESSENTRY32; sID: string; sName: string; begin Result := false; sName := ExtractFileName(aTask.Location); han := CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0); if han = 0 then exit; ProcStruct.dwSize := sizeof(PROCESSENTRY32); if Process32First(han, ProcStruct) then begin repeat sID := ExtractFileName(ProcStruct.szExeFile); if uppercase(copy(sID, 1, length(sName))) = uppercase(sName) then begin Result := true; Break; end; until not Process32Next(han, ProcStruct); end; CloseHandle(han); end; procedure TTasksController.SetFDConnection(const Value: TFDConnection); begin FFDConnection := Value; end; function TTasksController.Start: TObjectList<TTask>; var q: TFdquery; begin result := TObjectList<TTask>.Create(true); try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'select * from public."taskSchedule" where ' + // '"dateTimeStart"<=now() ' + // 'and ' + // '"countRunsRest">0;'; // Disconnect(); Open(); while not eof do begin if FieldByName('Interval').IsNull then result.Add(TTask.Create( // FieldByName('id').AsInteger, // FieldByName('ProcessName').AsString, // FieldByName('Location').AsString, // FieldByName('dateTimeStart').AsDateTime // )) else result.Add(TTask.Create( // FieldByName('id').AsInteger, // FieldByName('ProcessName').AsString, // FieldByName('Location').AsString, // FieldByName('Interval').AsInteger, // FieldByName('dateTimeStart').AsDateTime, // FieldByName('countRunsRest').AsInteger // )); Next; end; Close(); end; finally q.Free; end; end; function TTasksController.Successfull(aPeriod: TPeriod): TObjectList<TTask>; var q: TFdquery; begin result := TObjectList<TTask>.Create(true); try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'select * from public."taskSchedule" where "dateTimeStart" between :start and :finish ' + // ' and id in (SELECT "taskSchedule_id" FROM public."taskScheduleLog" where "isSuccessfull"=true)'; params.ParamValues['start'] := aPeriod.Start; params.ParamValues['finish'] := aPeriod.Finish; Disconnect(); Open(); while not eof do begin result.Add(TTask.Create( // FieldByName('id').AsInteger, FieldByName('ProcessName').AsString, // FieldByName('Location').AsString, // FieldByName('Interval').AsInteger, // FieldByName('dateTimeStart').AsDateTime, // FieldByName('countRunsRest').AsInteger // )); Next; end; Close(); end; finally q.Free; end; end; procedure TTasksController.Test; var tasks: TObjectList<TTask>; t: TTask; begin tasks := Start(); try for t in tasks do if not IsInstance(t) then LaunchTask(t); finally tasks.Free(); end; end; function TTasksController.LastInsertID: integer; var q: TFdquery; begin try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'select max(id) as lastId from "taskSchedule"'; Disconnect(); Open(); result := FieldByName('lastId').AsInteger; Close() end; finally q.Free; end; end; { UPDATE public."taskSchedule" SET "countRunsRest" ="countRunsRest" - 1 WHERE id = 6; } procedure TTasksController.LaunchTask(aTask: TTask); function decCountRunsRest(): Integer; var q: TFdquery; begin try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'UPDATE public."taskSchedule" ' + // 'SET "countRunsRest" ="countRunsRest" - 1 ' + // 'WHERE id = :id;'; params.ParamValues['id'] := aTask.Id; ExecSQL; end; finally q.Free; end; end; var location: string; HWnd: THandle; begin try if not TFile.Exists(aTask.Location) then begin LogFailedLaunch(aTask, 'no file in location'); Exit; end; // CreateProcessWin(aTask.Location); ShellExecute(HWnd, nil, PChar(aTask.Location), nil, nil, SW_RESTORE); decCountRunsRest(); LogSuccessLaunch(aTask); if aTask.Interval <> -1 then UpdateNextTimeInterval(aTask); except on E: Exception do LogFailedLaunch(aTask, e.Message); end; end; function TTasksController.UpdateNextTimeInterval(aTask: TTask): Integer; var q: TFdquery; begin if aTask.Interval = -1 then Exit; aTask.DateTimeStart := IncMinute(aTask.DateTimeStart, aTask.Interval); try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := ' UPDATE public."taskSchedule" ' + // ' SET "dateTimeStart"=:dateTimeStart ' + // ' WHERE id=:id;'; params.ParamValues['dateTimeStart'] := aTask.DateTimeStart; params.ParamValues['id'] := aTask.Id; ExecSQL; end; finally q.Free; end; end; procedure TTasksController.LogFailedLaunch(aTask: TTask; aErrorMessage: string); var q: TFDQuery; begin // try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'INSERT INTO public."taskScheduleLog"( ' + // ' "dateTime", "taskSchedule_id", "errorMessage", "isSuccessfull") ' + // ' VALUES (:dateTime, :taskSchedule_id, :errorMessage, :isSuccessfull); '; params.ParamValues['dateTime'] := Now(); params.ParamValues['taskSchedule_id'] := aTask.Id; params.ParamValues['errorMessage'] := aErrorMessage; params.ParamValues['isSuccessfull'] := False; ExecSQL(); end; finally q.Free; end; end; procedure TTasksController.LogSuccessLaunch(aTask: TTask); var q: TFDQuery; begin // try q := TFdquery.Create(nil); with q do begin Connection := FFDConnection; sql.Text := 'INSERT INTO public."taskScheduleLog"( ' + // ' "dateTime", "taskSchedule_id", "isSuccessfull") ' + // ' VALUES (:dateTime, :taskSchedule_id, :isSuccessfull); '; params.ParamValues['dateTime'] := Now(); params.ParamValues['taskSchedule_id'] := aTask.Id; params.ParamValues['isSuccessfull'] := True; ExecSQL(); end; finally q.Free; end; end; procedure TTasksController.tStartTimer(Sender: TObject); var tasks: TObjectList<TTask>; t: TTask; begin tasks := Start(); try for t in tasks do if not IsInstance(t) then LaunchTask(t); finally tasks.Free(); end; end; end. |
Пример применения
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FTasksController := TTasksController.Create(Self); FTasksController.FDConnection := DB.FDConnection; // task := TTask.Create('notepad', 'C:\WINDOWS\system32\notepad.exe', 1, Now, 2); // run 2 times task := TTask.Create('notepad', 'C:\WINDOWS\system32\notepad.exe', Now); // run once task.Id := FTasksController.Add(task, false); task.free; |