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(* |
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* Firebird Interface (fbintf). The fbintf components provide a set of |
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* Pascal language bindings for the Firebird API. Although predominantly |
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* a new development they include source code taken from IBX and may be |
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* considered a derived product. This software thus also includes the copyright |
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* notice and license conditions from IBX. |
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* |
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* Except for those parts dervied from IBX, contents of this file are subject |
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* to the Initial Developer's Public License Version 1.0 (the "License"); you |
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* may not use this file except in compliance with the License. You may obtain a |
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* copy 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) 2016 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 FBServices; |
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{$IFDEF MSWINDOWS} |
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{$DEFINE WINDOWS} |
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{$ENDIF} |
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|
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{$IFDEF FPC} |
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{$mode delphi} |
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{$interfaces COM} |
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{$ENDIF} |
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|
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interface |
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|
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uses |
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Classes, SysUtils, IB, FBParamBlock, FBActivityMonitor; |
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|
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type |
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|
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{ TFBServiceManager } |
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|
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TFBServiceManager = class(TFBInterfacedObject) |
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private |
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FFirebirdAPI: IFirebirdAPI; |
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FProtocol: TProtocol; |
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FServerName: AnsiString; |
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procedure CheckServerName; |
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protected |
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FSPB: ISPB; |
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procedure InternalAttach(ConnectString: AnsiString); virtual; abstract; |
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public |
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constructor Create(ServerName: AnsiString; Protocol: TProtocol; SPB: ISPB); |
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destructor Destroy; override; |
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public |
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{IServiceManager} |
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function getSPB: ISPB; |
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function getServerName: AnsiString; |
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procedure Attach; |
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procedure Detach(Force: boolean=false); virtual; abstract; |
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function AllocateSRB: ISRB; |
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function AllocateSQPB: ISQPB; |
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function Query(SQPB: ISQPB; Request: ISRB): IServiceQueryResults; overload; virtual; abstract; |
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function Query(Request: ISRB): IServiceQueryResults; overload; |
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end; |
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|
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implementation |
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|
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uses FBMessages, FBClientAPI; |
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|
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{ TFBServiceManager } |
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|
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procedure TFBServiceManager.CheckServerName; |
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begin |
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if (FServerName = '') and (FProtocol <> Local) then |
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IBError(ibxeServerNameMissing, [nil]); |
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end; |
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|
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constructor TFBServiceManager.Create(ServerName: AnsiString; Protocol: TProtocol; |
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SPB: ISPB); |
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begin |
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inherited Create; |
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FFirebirdAPI := FirebirdAPI; {Keep reference to interface} |
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FProtocol := Protocol; |
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FSPB := SPB; |
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FServerName := ServerName; |
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Attach; |
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end; |
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|
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destructor TFBServiceManager.Destroy; |
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begin |
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Detach(true); |
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inherited Destroy; |
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end; |
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|
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function TFBServiceManager.getSPB: ISPB; |
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begin |
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Result := FSPB; |
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end; |
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|
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function TFBServiceManager.getServerName: AnsiString; |
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begin |
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Result := FServerName; |
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end; |
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|
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procedure TFBServiceManager.Attach; |
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var ConnectString: AnsiString; |
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begin |
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case FProtocol of |
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TCP: ConnectString := FServerName + ':service_mgr'; {do not localize} |
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SPX: ConnectString := FServerName + '@service_mgr'; {do not localize} |
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NamedPipe: ConnectString := '\\' + FServerName + '\service_mgr'; {do not localize} |
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Local: ConnectString := 'service_mgr'; {do not localize} |
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end; |
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InternalAttach(ConnectString); |
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end; |
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|
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function TFBServiceManager.AllocateSRB: ISRB; |
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begin |
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Result := TSRB.Create; |
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end; |
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|
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function TFBServiceManager.AllocateSQPB: ISQPB; |
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begin |
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Result := TSQPB.Create; |
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end; |
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|
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function TFBServiceManager.Query(Request: ISRB): IServiceQueryResults; |
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begin |
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Result := Query(nil,Request); |
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end; |
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|
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end. |
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|
