unit uRODLImplConverter;

{----------------------------------------------------------------------------}
{ RemObjects SDK Library - CodeGen2                                          }
{                                                                            }
{ compiler: Delphi 5 and up, Kylix 2 and up                                  }
{ platform: Win32, Linux                                                     }
{                                                                            }
{ (c)opyright RemObjects Software. all rights reserved.                      }
{                                                                            }
{ Using this code requires a valid license of the RemObjects SDK             }
{ which can be obtained at http://www.remobjects.com.                        }
{----------------------------------------------------------------------------}

{$IFDEF LINUX}
{$I ../RemObjects.inc}
{$ELSE}
{$I ..\RemObjects.inc}
{$ENDIF LINUX}

interface

uses
  uRODLTemplateBasedConverter, uRODL;

const
  DEFAULT_IMPL_SERVICE_ANCESTOR = 'TRORemotable';
  
type
  TRODLImplConverter = class (TRODLTemplateBasedConverter)
  private
    FService: TRODLService;
    FAncestorService: TRODLService;
    function GetAncestorUnitName: string;

    property AncestorUnitName: string read GetAncestorUnitName;
  protected
    procedure IntConvert(const aLibrary : TRODLLIbrary; const aTargetEntity : string = ''); override;
    procedure SetupServices(const aLibrary: TRODLLibrary; const aTargetEntity : string = ''); override;
    procedure SetupRequiredUnits; override;
    function ValidateTargetEntity(const aLibrary : TRODLLIbrary; const aTargetEntity : string) : boolean; override;

    function GetServicesSectionClass: TServicesSectionClass; override;
  public
    constructor Create(const aLibrary: TRODLLibrary; const aTemplateFileName: string; const aUnitName: string; const aServerClassName: string; const aTargetEntity: string = ''; const aRequiredUnits: string = ''); reintroduce; virtual;
  end;

implementation

uses
  SysUtils, uRODLTemplateBasedConverterUtils, uROServer;

type
  TImplServicesSection = class (TServicesSection)
  protected  
    function GetAncestorName(const aService: TRODLBaseService): string; override;
  end;

{ TRODLDelphiImplConverter }

constructor TRODLImplConverter.Create(const aLibrary: TRODLLibrary;
  const aTemplateFileName: string; const aUnitName: string; const aServerClassName: string;
  const aTargetEntity: string; const aRequiredUnits: string);
begin
  // Call inherited with nil so that convert is not called, allowing us
  // to setup the optional sections. Setting up the optional sections before
  // calling the inherited Create is not an option, the section list would
  // not have been created
  inherited Create(nil, aTemplateFileName, aUnitName, aTargetEntity);

  FServerClassName := aServerClassName;
  FRequiredUnits := aRequiredUnits;

  // Now that everything is done, call convert if need be.
  if (aLibrary <> nil) then Convert(aLibrary, aTargetEntity);
end;

function TRODLImplConverter.GetAncestorUnitName: string;
begin
  Result := ''; 
  if Assigned(FService) then
  begin
    if FService.Ancestor <> '' then
    begin
      if Assigned(FAncestorService) and (FAncestorService.ImplUnit <> '') then
        Result := FAncestorService.ImplUnit
      else
        Result := FService.Ancestor+'_Impl';
    end;
  end;
end;

function TRODLImplConverter.GetServicesSectionClass: TServicesSectionClass;
begin
  Result := TImplServicesSection;
end;

procedure TRODLImplConverter.IntConvert(const aLibrary: TRODLLIbrary;
  const aTargetEntity: string);
begin
  if Assigned(fService) and Assigned(fService.Default) then
    inherited IntConvert(aLibrary, aTargetEntity);
end;

procedure TRODLImplConverter.SetupRequiredUnits;
var
  ancestorUnit: string;
begin
  inherited SetupRequiredUnits;

  ancestorUnit := AncestorUnitName;
  if Pos(ancestorUnit, RequiredUnits) = 0 then
    RequiredUnits := RequiredUnits + ',' + ancestorUnit;
end;

procedure TRODLImplConverter.SetupServices(const aLibrary: TRODLLibrary;
  const aTargetEntity: string);
begin
  inherited SetupServices(aLibrary, aTargetEntity);
  
  // For the impl section, only one service is of interest, the one
  // indicated to us
  FOrderedServices.Clear;
  FOrderedServices.AddObject(FService.Name, FService);
end;

function TRODLImplConverter.ValidateTargetEntity(
  const aLibrary: TRODLLIbrary; const aTargetEntity: string): boolean;
var
  i : integer;
begin
  Result := FALSE;

  for i := 0 to (aLibrary.ServiceCount-1) do
    if (CompareText(aLibrary.Services[i].Info.Name, aTargetEntity)=0) then
    begin
      FService := aLibrary.Services[i]; // Will be used later
      if FService.Ancestor <> '' then
        FAncestorService := aLibrary.FindService(FService.Ancestor);
      Result := TRUE;
      Exit;
    end;
end;

{ TImplServicesSection }

function TImplServicesSection.GetAncestorName(
  const aService: TRODLBaseService): string;
begin
  Result := inherited GetAncestorName(aService);
  
  if Result = '' then
  begin
    if not (Parent as TRODLImplConverter).UseDefaultAncestor then
      Result := (Parent as TRODLImplConverter).ServerClassName
    else
      Result := DEFAULT_IMPL_SERVICE_ANCESTOR;
  end;
end;


end.