fbintf/client/FBServices.pas

(*
 *  Firebird Interface (fbintf). The fbintf components provide a set of
 *  Pascal language bindings for the Firebird API. Although predominantly
 *  a new development they include source code taken from IBX and may be
 *  considered a derived product. This software thus also includes the copyright
 *  notice and license conditions from IBX.
 *
 *  Except for those parts dervied from IBX, contents of this file are subject
 *  to the Initial Developer's Public License Version 1.0 (the "License"); you
 *  may not use this file except in compliance with the License. You may obtain a
 *  copy of the License here:
 *
 *    http://www.firebirdsql.org/index.php?op=doc&id=idpl
 *
 *  Software distributed under the License is distributed on an "AS
 *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *  implied. See the License for the specific language governing rights
 *  and limitations under the License.
 *
 *  The Initial Developer of the Original Code is Tony Whyman.
 *
 *  The Original Code is (C) 2016 Tony Whyman, MWA Software
 *  (http://www.mwasoftware.co.uk).
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): ______________________________________.
 *
*)
unit FBServices;
{$IFDEF MSWINDOWS} 
{$DEFINE WINDOWS} 
{$ENDIF}

{$IFDEF FPC}
{$mode delphi}
{$interfaces COM}
{$ENDIF}

interface

uses
  Classes, SysUtils, IB,  FBParamBlock, FBActivityMonitor;

type

  { TFBServiceManager }

  TFBServiceManager = class(TFBInterfacedObject)
  private
    FFirebirdAPI: IFirebirdAPI;
    FProtocol: TProtocol;
    FServerName: AnsiString;
    procedure CheckServerName;
  protected
    FSPB: ISPB;
    procedure InternalAttach(ConnectString: AnsiString); virtual; abstract;
  public
    constructor Create(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB);
    destructor Destroy; override;
  public
    {IServiceManager}
    function getSPB: ISPB;
    function getServerName: AnsiString;
    procedure Attach;
    procedure Detach(Force: boolean=false); virtual; abstract;
    function AllocateSRB: ISRB;
    function AllocateSQPB: ISQPB;
    function Query(SQPB: ISQPB; Request: ISRB): IServiceQueryResults; overload; virtual; abstract;
    function Query(Request: ISRB): IServiceQueryResults;  overload;
  end;

implementation

uses FBMessages, FBClientAPI;

{ TFBServiceManager }

procedure TFBServiceManager.CheckServerName;
begin
  if (FServerName = '') and (FProtocol <> Local) then
    IBError(ibxeServerNameMissing, [nil]);
end;

constructor TFBServiceManager.Create(ServerName: AnsiString; Protocol: TProtocol;
  SPB: ISPB);
begin
  inherited Create;
  FFirebirdAPI := FirebirdAPI; {Keep reference to interface}
  FProtocol := Protocol;
  FSPB := SPB;
  FServerName := ServerName;
  Attach;
end;

destructor TFBServiceManager.Destroy;
begin
  Detach(true);
  inherited Destroy;
end;

function TFBServiceManager.getSPB: ISPB;
begin
  Result := FSPB;
end;

function TFBServiceManager.getServerName: AnsiString;
begin
  Result := FServerName;
end;

procedure TFBServiceManager.Attach;
var ConnectString: AnsiString;
begin
  case FProtocol of
    TCP: ConnectString := FServerName + ':service_mgr'; {do not localize}
    SPX: ConnectString := FServerName + '@service_mgr'; {do not localize}
    NamedPipe: ConnectString := '\\' + FServerName + '\service_mgr'; {do not localize}
    Local: ConnectString := 'service_mgr'; {do not localize}
  end;
  InternalAttach(ConnectString);
end;

function TFBServiceManager.AllocateSRB: ISRB;
begin
  Result := TSRB.Create;
end;

function TFBServiceManager.AllocateSQPB: ISQPB;
begin
   Result := TSQPB.Create;
end;

function TFBServiceManager.Query(Request: ISRB): IServiceQueryResults;
begin
   Result := Query(nil,Request);
end;

end.

Revision:	56
Committed:	Mon Mar 6 10:20:02 2017 UTC (7 years, 8 months ago) by tony
Content type:	text/x-pascal
File size:	3713 byte(s)
Log Message:	Committing updates for Trunk
#	User	Rev	Content
1	tony	45	(*
2			* Firebird Interface (fbintf). The fbintf components provide a set of
3			* Pascal language bindings for the Firebird API. Although predominantly
4			* a new development they include source code taken from IBX and may be
5			* considered a derived product. This software thus also includes the copyright
6			* notice and license conditions from IBX.
7			*
8			* Except for those parts dervied from IBX, contents of this file are subject
9			* to the Initial Developer's Public License Version 1.0 (the "License"); you
10			* may not use this file except in compliance with the License. You may obtain a
11			* copy of the License here:
12			*
13			* http://www.firebirdsql.org/index.php?op=doc&id=idpl
14			*
15			* Software distributed under the License is distributed on an "AS
16			* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
17			* implied. See the License for the specific language governing rights
18			* and limitations under the License.
19			*
20			* The Initial Developer of the Original Code is Tony Whyman.
21			*
22			* The Original Code is (C) 2016 Tony Whyman, MWA Software
23			* (http://www.mwasoftware.co.uk).
24			*
25			* All Rights Reserved.
26			*
27			* Contributor(s): ______________________________________.
28			*
29			*)
30			unit FBServices;
31	tony	56	{$IFDEF MSWINDOWS}
32			{$DEFINE WINDOWS}
33			{$ENDIF}
34	tony	45
35			{$IFDEF FPC}
36	tony	56	{$mode delphi}
37	tony	45	{$interfaces COM}
38			{$ENDIF}
39
40			interface
41
42			uses
43			Classes, SysUtils, IB, FBParamBlock, FBActivityMonitor;
44
45			type
46
47			{ TFBServiceManager }
48
49			TFBServiceManager = class(TFBInterfacedObject)
50			private
51			FFirebirdAPI: IFirebirdAPI;
52			FProtocol: TProtocol;
53	tony	56	FServerName: AnsiString;
54	tony	45	procedure CheckServerName;
55			protected
56			FSPB: ISPB;
57	tony	56	procedure InternalAttach(ConnectString: AnsiString); virtual; abstract;
58	tony	45	public
59	tony	56	constructor Create(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB);
60	tony	45	destructor Destroy; override;
61			public
62			{IServiceManager}
63			function getSPB: ISPB;
64	tony	56	function getServerName: AnsiString;
65	tony	45	procedure Attach;
66			procedure Detach(Force: boolean=false); virtual; abstract;
67			function AllocateSRB: ISRB;
68			function AllocateSQPB: ISQPB;
69	tony	56	function Query(SQPB: ISQPB; Request: ISRB): IServiceQueryResults; overload; virtual; abstract;
70	tony	45	function Query(Request: ISRB): IServiceQueryResults; overload;
71			end;
72
73			implementation
74
75			uses FBMessages, FBClientAPI;
76
77			{ TFBServiceManager }
78
79			procedure TFBServiceManager.CheckServerName;
80			begin
81			if (FServerName = '') and (FProtocol <> Local) then
82			IBError(ibxeServerNameMissing, [nil]);
83			end;
84
85	tony	56	constructor TFBServiceManager.Create(ServerName: AnsiString; Protocol: TProtocol;
86	tony	45	SPB: ISPB);
87			begin
88			inherited Create;
89			FFirebirdAPI := FirebirdAPI; {Keep reference to interface}
90			FProtocol := Protocol;
91			FSPB := SPB;
92			FServerName := ServerName;
93			Attach;
94			end;
95
96			destructor TFBServiceManager.Destroy;
97			begin
98			Detach(true);
99			inherited Destroy;
100			end;
101
102			function TFBServiceManager.getSPB: ISPB;
103			begin
104			Result := FSPB;
105			end;
106
107	tony	56	function TFBServiceManager.getServerName: AnsiString;
108	tony	45	begin
109			Result := FServerName;
110			end;
111
112			procedure TFBServiceManager.Attach;
113	tony	56	var ConnectString: AnsiString;
114	tony	45	begin
115			case FProtocol of
116			TCP: ConnectString := FServerName + ':service_mgr'; {do not localize}
117			SPX: ConnectString := FServerName + '@service_mgr'; {do not localize}
118			NamedPipe: ConnectString := '\\' + FServerName + '\service_mgr'; {do not localize}
119			Local: ConnectString := 'service_mgr'; {do not localize}
120			end;
121			InternalAttach(ConnectString);
122			end;
123
124			function TFBServiceManager.AllocateSRB: ISRB;
125			begin
126			Result := TSRB.Create;
127			end;
128
129			function TFBServiceManager.AllocateSQPB: ISQPB;
130			begin
131			Result := TSQPB.Create;
132			end;
133
134			function TFBServiceManager.Query(Request: ISRB): IServiceQueryResults;
135			begin
136			Result := Query(nil,Request);
137			end;
138
139			end.
140