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(*
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* IBX For Lazarus (Firebird Express)
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*
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* The contents of this file are subject to the Initial Developer's
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* Public License Version 1.0 (the "License"); you may not use this
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* file except in compliance with the License. You may obtain a copy
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* of the License here:
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*
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* http://www.firebirdsql.org/index.php?op=doc&id=idpl
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Initial Developer of the Original Code is Tony Whyman.
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*
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* The Original Code is (C) 2015 Tony Whyman, MWA Software
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* (http://www.mwasoftware.co.uk).
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*
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* All Rights Reserved.
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*
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* Contributor(s): ______________________________________.
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*
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*)
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unit MainFormUnit;
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{$mode objfpc}{$H+}
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interface
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uses
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Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
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ActnList, Menus, IBXServices, IB;
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const
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sDefaultDatabaseName = 'employee';
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type
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TRunServiceProc = procedure of object;
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{ TMainForm }
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TMainForm = class(TForm)
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IBConfigService1: TIBXConfigService;
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IBXServicesConnection1: TIBXServicesConnection;
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MenuItem6: TMenuItem;
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Shutdown: TAction;
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BringOnline: TAction;
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MenuItem1: TMenuItem;
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MenuItem5: TMenuItem;
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Sweep: TAction;
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LimboTransactions: TAction;
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MenuItem2: TMenuItem;
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MenuItem3: TMenuItem;
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MenuItem4: TMenuItem;
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PopupMenu1: TPopupMenu;
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Validate: TAction;
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Statistics: TAction;
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ActionList1: TActionList;
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CLoseBtn: TButton;
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BackupBtn: TButton;
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RestoreBtn: TButton;
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ServerLOgBtn: TButton;
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DatabaseBtn: TButton;
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UsersBtn: TButton;
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IBLogService1: TIBXLogService;
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IBOnlineValidationService1: TIBXOnlineValidationService;
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IBServerProperties1: TIBXServerProperties;
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IBStatisticalService1: TIBXStatisticalService;
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IBValidationService1: TIBXValidationService;
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Memo1: TMemo;
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procedure BringOnlineExecute(Sender: TObject);
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procedure BringOnlineUpdate(Sender: TObject);
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procedure CLoseBtnClick(Sender: TObject);
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procedure BackupBtnClick(Sender: TObject);
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procedure IBXServicesConnection1Login(Service: TIBXServicesConnection;
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var aServerName: string; LoginParams: TStrings);
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procedure IBXServicesConnection1SecurityContextException(
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Service: TIBXServicesConnection; var aAction: TSecContextAction);
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procedure RestoreBtnClick(Sender: TObject);
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procedure ServerLOgBtnClick(Sender: TObject);
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procedure DatabaseBtnClick(Sender: TObject);
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procedure ShutdownExecute(Sender: TObject);
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procedure SweepExecute(Sender: TObject);
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procedure UsersBtnClick(Sender: TObject);
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procedure FormShow(Sender: TObject);
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procedure LimboTransactionsExecute(Sender: TObject);
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procedure StatisticsExecute(Sender: TObject);
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procedure ValidateExecute(Sender: TObject);
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private
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{ private declarations }
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FDBName: string;
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FServerUserName: string;
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FServerPassword: string;
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FShutDownMode: TDBShutdownMode;
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FDelay: integer;
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procedure SetDBName(AValue: string);
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property DBName: string read FDBName write SetDBName;
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public
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{ public declarations }
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function IsDatabaseOnline: boolean;
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end;
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var
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MainForm: TMainForm;
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implementation
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{$R *.lfm}
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uses FBMessages, ServicesLoginDlgUnit, SelectValidationDlgUnit, SelectDBDlgUnit,
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BackupDlgUnit, RestoreDlgUnit, ListUsersUnit, LimboTransactionsUnit,
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ShutdownDatabaseDlgUnit, ShutdownRegDlgUnit;
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resourcestring
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sDBSweep = 'Database sweep started';
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sSweepOK = 'Sweep successfully completed';
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sSecContext = 'This database appears to use an alternative security database. '+
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'You must now log into the alternative security database using login '+
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'credentials for the alternative security database.';
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{ TMainForm }
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procedure TMainForm.FormShow(Sender: TObject);
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var i: integer;
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begin
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{Set IB Exceptions to only show text message - omit SQLCode and Engine Code}
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FirebirdAPI.GetStatus.SetIBDataBaseErrorMessages([ShowIBMessage]);
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Application.ExceptionDialog := aedOkMessageBox;
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FDBName := sDefaultDatabaseName;
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{Open the Services API connection }
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with IBXServicesConnection1 do
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begin
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while not Connected do
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begin
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try
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Connected := true;
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except
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on E:EIBClientError do
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begin
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Close;
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Exit
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end;
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On E:Exception do
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MessageDlg(E.Message,mtError,[mbOK],0);
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end;
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end; {Loop until logged in or user cancels}
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end;
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{Now display the server properties}
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with IBServerProperties1, ServicesConnection do
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begin
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Memo1.Lines.Add('Server Version = ' + VersionInfo.ServerVersion);
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Memo1.Lines.Add('Server Implementation = ' + VersionInfo.ServerImplementation);
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Memo1.Lines.Add('Service Version = ' + IntToStr(VersionInfo.ServiceVersion));
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Memo1.Lines.Add(Format('Firebird Release = %d.%d.%d (Build no. %d)',[ServerVersionNo[1],
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ServerVersionNo[2],
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ServerVersionNo[3],
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ServerVersionNo[4]]));
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Memo1.Lines.Add('No. of attachments = ' + IntToStr(DatabaseInfo.NoOfAttachments));
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Memo1.Lines.Add('No. of databases = ' + IntToStr(DatabaseInfo.NoOfDatabases));
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for i := 0 to DatabaseInfo.NoOfDatabases - 1 do
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Memo1.Lines.Add('DB Name = ' + DatabaseInfo.DbName[i]);
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Memo1.Lines.Add('Base Location = ' + ConfigParams.BaseLocation);
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Memo1.Lines.Add('Lock File Location = ' + ConfigParams.LockFileLocation);
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Memo1.Lines.Add('Security Database Location = ' + ConfigParams.SecurityDatabaseLocation);
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Memo1.Lines.Add('Message File Location = ' + ConfigParams.MessageFileLocation);
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for i := Low(ConfigParams.ConfigFileParams) to High(ConfigParams.ConfigFileParams) do
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Memo1.Lines.Add(ConfigParams.ConfigFileParams[i]);
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for i := Low(ConfigParams.ConfigFileData.ConfigFileKey) to High(ConfigParams.ConfigFileData.ConfigFileKey) do
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Memo1.Lines.Add(Format('%d=%s',[ConfigParams.ConfigFileData.ConfigFileKey[i],ConfigParams.ConfigFileData.ConfigFileValue[i]]));
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end;
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end;
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procedure TMainForm.LimboTransactionsExecute(Sender: TObject);
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var aDBName: string;
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begin
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aDBName := DBName;
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with LimboTransactionsForm do
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begin
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if SelectDBDlg.ShowModal(aDBName) = mrOK then
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begin
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DBName := aDBName;
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IBXLimboTransactionResolutionService1.DatabaseName := DBName;
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ShowModal;
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end;
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end;
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end;
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procedure TMainForm.StatisticsExecute(Sender: TObject);
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var aDBName: string;
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begin
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aDBName := DBName;
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if SelectDBDlg.ShowModal(aDBName) = mrOK then
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begin
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DBName := aDBName;
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IBStatisticalService1.Options := [DataPages];
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IBStatisticalService1.DatabaseName := DBName;
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Memo1.Lines.Add('Database Statistics for ' + IBStatisticalService1.DatabaseName);
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IBStatisticalService1.Execute(Memo1.Lines);
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end;
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end;
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procedure TMainForm.ValidateExecute(Sender: TObject);
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var UseOnlineValidation: boolean;
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aDBName: string;
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begin
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UseOnlineValidation := false;
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aDBName := DBName;
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if SelectValidationDlg.ShowModal(IBXServicesConnection1.ServerName,aDBName,UseOnlineValidation) = mrOK then
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begin
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DBName := aDBName;
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Memo1.Lines.Add('Running...');
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if UseOnlineValidation then
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begin
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IBOnlineValidationService1.DatabaseName := DBName;
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IBOnlineValidationService1.Execute(Memo1.Lines);
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end
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else
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begin
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IBValidationService1.Options := [ValidateFull];
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IBValidationService1.DatabaseName := DBName;
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IBValidationService1.Execute(Memo1.Lines);
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end;
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Memo1.Lines.Add('Validation Completed');
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MessageDlg('Validation Completed',mtInformation,[mbOK],0);
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end;
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end;
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procedure TMainForm.SetDBName(AValue: string);
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begin
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if FDBName = AValue then Exit;
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FDBName := AValue;
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end;
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function TMainForm.IsDatabaseOnline: boolean;
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var Lines: TStringList;
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i: integer;
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line: string;
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begin
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{Scan header page to see if database is online - assumes that service is already set up}
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Result := true;
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with IBStatisticalService1 do
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begin
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Options := [HeaderPages];
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DatabaseName := DBName;
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Lines := TStringList.Create;
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try
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Execute(Lines);
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for i := 0 to Lines.Count - 1 do
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begin
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line := Lines[i];
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if (Pos('Attributes',Line) <> 0) and ((Pos('database shutdown',Line) <> 0)
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or (Pos('multi-user maintenance',Line) <> 0)) then
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begin
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Result := false;
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break;
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end;
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end;
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finally
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Lines.Free;
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end
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end;
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end;
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procedure TMainForm.CLoseBtnClick(Sender: TObject);
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begin
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Close
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end;
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procedure TMainForm.BringOnlineExecute(Sender: TObject);
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var aDBName: string;
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begin
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aDBName := DBName;
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if SelectDBDlg.ShowModal(aDBName) = mrOK then
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begin
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DBName := aDBName;
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if IsDatabaseOnline then
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MessageDlg('Database is already online!',mtInformation,[mbOK],0)
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else
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begin
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IBConfigService1.DatabaseName := DBName;
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IBConfigService1.BringDatabaseOnline;
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if IsDatabaseOnline then
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MessageDlg('Database is back online',mtInformation,[mbOK],0)
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else
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MessageDlg('Database is still shutdown!',mtError,[mbOK],0);
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end;
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end;
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end;
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procedure TMainForm.BringOnlineUpdate(Sender: TObject);
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begin
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(Sender as TAction).Enabled := not ShutdownDatabaseDlg.Aborting;
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end;
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procedure TMainForm.BackupBtnClick(Sender: TObject);
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var aDBName: string;
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begin
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aDBName := DBName;
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if BackupDlg.ShowModal(aDBName,Memo1.Lines) = mrOK then
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DBName := aDBName;
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end;
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{Logon to the current security database on the server}
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procedure TMainForm.IBXServicesConnection1Login(
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Service: TIBXServicesConnection; var aServerName: string; LoginParams: TStrings);
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var aServiceName: string;
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aUserName: string;
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aPassword: string;
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begin
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aServiceName := aServerName;
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aUserName := LoginParams.Values['user_name'];
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aPassword := '';
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if SvcLoginDlg.ShowModal(aServiceName, aUserName, aPassword) = mrOK then
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begin
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Service.ServerName := aServiceName;
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LoginParams.Values['user_name'] := aUserName;
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LoginParams.Values['password'] := aPassword;
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FServerUserName := aUserName;
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FServerPassword := aPassword;
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aServerName := aServiceName;
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end
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else
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IBError(ibxeOperationCancelled, [nil]);
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end;
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procedure TMainForm.IBXServicesConnection1SecurityContextException(
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Service: TIBXServicesConnection; var aAction: TSecContextAction);
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begin
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if MessageDlg(sSecContext,mtInformation,[mbYes,mbNo],0) = mrYes then
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aAction := scReconnect;
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end;
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procedure TMainForm.RestoreBtnClick(Sender: TObject);
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var aDBName: string;
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begin
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aDBName := DBName;
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if RestoreDlg.ShowModal(aDBName,Memo1.Lines) = mrOK then
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DBName := aDBName;
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end;
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procedure TMainForm.ServerLOgBtnClick(Sender: TObject);
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begin
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Memo1.Lines.Add('Server Log');
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IBLogService1.Execute(Memo1.Lines);
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end;
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procedure TMainForm.DatabaseBtnClick(Sender: TObject);
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begin
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PopupMenu1.PopUp(Mouse.CursorPos.X,Mouse.CursorPos.Y);
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end;
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procedure TMainForm.ShutdownExecute(Sender: TObject);
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var aDBName: string;
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begin
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aDBName := DBName;
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FShutDownMode := DenyTransaction;
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if ShutdownReqDlg.ShowModal(aDBName,FShutDownMode,FDelay) = mrOK then
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begin
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DBName := aDBName;
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if not IsDatabaseOnline then
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MessageDlg('Database is already shutdown!',mtInformation,[mbOK],0)
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else
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ShutdownDatabaseDlg.Shutdown(DBName,FShutDownMode,FDelay);
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end;
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end;
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procedure TMainForm.SweepExecute(Sender: TObject);
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var aDBName: string;
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begin
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aDBName := DBName;
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if SelectDBDlg.ShowModal(aDBName) = mrOK then
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with IBValidationService1 do
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begin
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DBName := aDBName;
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DatabaseName := DBName;
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Options := [SweepDB];
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Memo1.Lines.Add(Format(sDBSweep,[DatabaseName]));
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Execute(Memo1.Lines);
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Memo1.Lines.Add(sSweepOK);
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end;
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end;
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procedure TMainForm.UsersBtnClick(Sender: TObject);
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begin
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ListUsersForm.ShowModal;
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end;
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end.
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