[ViewVC] Diff of: public/ibx/branches/journaling/fbintf/client/FBAttachment.pas

Comparing ibx/trunk/fbintf/client/FBAttachment.pas (file contents):
Revision 56 by tony, Mon Mar 6 10:20:02 2017 UTC vs.
Revision 60 by tony, Mon Mar 27 15:21:02 2017 UTC

+interface
+uses
-<
+  Classes, SysUtils, IB,  FBParamBlock, FBActivityMonitor;
->
+  Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB,  FBParamBlock, FBActivityMonitor;
+type
-+
+  TCharsetMap = record
-+
+    CharsetID: integer;
-+
+    CharSetName: AnsiString;
-+
+    CharSetWidth: integer;
-+
+    CodePage: TSystemCodePage;
-+
+    AllowReverseLookup: boolean; {used to ensure that lookup of CP_UTF* does not return UNICODE_FSS}
-+
+  end;
+  { TFBAttachment }
+  private
+    FDPB: IDPB;
+    FFirebirdAPI: IFirebirdAPI;
-+
+    FUserCharSetMap: array of TCharSetMap;
+  protected
+    FDatabaseName: AnsiString;
+    FRaiseExceptionOnConnectError: boolean;
+    function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; virtual; abstract;
+    function OpenBlob(transaction: ITransaction; Field: ISQLData; BPB: IBPB=nil): IBlob; overload;
+    property SQLDialect: integer read FSQLDialect;
-–
+    property HasDefaultCharSet: boolean read FHasDefaultCharSet;
-–
+    property CharSetID: integer read FCharSetID;
-–
+    property CodePage: TSystemCodePage read FCodePage;
+    property DPB: IDPB read FDPB;
-+
+public
-+
+    {Character Sets}
-+
+  function GetCharsetName(CharSetID: integer): AnsiString;
-+
+  function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean;
-+
+  function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean;
-+
+  function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean;
-+
+  function CharSetWidth(CharSetID: integer; var Width: integer): boolean;
-+
+  procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage;
-+
+    AllowReverseLookup:boolean; out CharSetID: integer);
-+
+  property HasDefaultCharSet: boolean read FHasDefaultCharSet;
-+
+  property CharSetID: integer read FCharSetID;
-+
+  property CodePage: TSystemCodePage read FCodePage;
+  end;
+implementation
+uses FBMessages, FBTransaction;
-+
+const
-+
+  CharSetMap: array [0..69] of TCharsetMap = (
-+
+  (CharsetID: 0; CharSetName: 'NONE'; CharSetWidth: 1; CodePage: CP_ACP; AllowReverseLookup: true),
-+
+  (CharsetID: 1; CharSetName: 'OCTETS'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
-+
+  (CharsetID: 2; CharSetName: 'ASCII'; CharSetWidth: 1; CodePage: CP_ASCII; AllowReverseLookup: true),
-+
+  (CharsetID: 3; CharSetName: 'UNICODE_FSS'; CharSetWidth: 3; CodePage: CP_UTF8; AllowReverseLookup: false),
-+
+  (CharsetID: 4; CharSetName: 'UTF8'; CharSetWidth: 4; CodePage: CP_UTF8; AllowReverseLookup: true),
-+
+  (CharsetID: 5; CharSetName: 'SJIS_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
-+
+  (CharsetID: 6; CharSetName: 'EUCJ_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
-+
+  (CharsetID: 7; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
-+
+  (CharsetID: 8; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
-+
+  (CharsetID: 9; CharSetName: 'DOS737'; CharSetWidth: 1; CodePage: 737; AllowReverseLookup: true),
-+
+  (CharsetID: 10; CharSetName: 'DOS437'; CharSetWidth: 1; CodePage: 437; AllowReverseLookup: true),
-+
+  (CharsetID: 11; CharSetName: 'DOS850'; CharSetWidth: 1; CodePage: 850; AllowReverseLookup: true),
-+
+  (CharsetID: 12; CharSetName: 'DOS865'; CharSetWidth: 1; CodePage: 865; AllowReverseLookup: true),
-+
+  (CharsetID: 13; CharSetName: 'DOS860'; CharSetWidth: 1; CodePage: 860; AllowReverseLookup: true),
-+
+  (CharsetID: 14; CharSetName: 'DOS863'; CharSetWidth: 1; CodePage: 863; AllowReverseLookup: true),
-+
+  (CharsetID: 15; CharSetName: 'DOS775'; CharSetWidth: 1; CodePage: 775; AllowReverseLookup: true),
-+
+  (CharsetID: 16; CharSetName: 'DOS858'; CharSetWidth: 1; CodePage: 858; AllowReverseLookup: true),
-+
+  (CharsetID: 17; CharSetName: 'DOS862'; CharSetWidth: 1; CodePage: 862; AllowReverseLookup: true),
-+
+  (CharsetID: 18; CharSetName: 'DOS864'; CharSetWidth: 1; CodePage: 864; AllowReverseLookup: true),
-+
+  (CharsetID: 19; CharSetName: 'NEXT'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
-+
+  (CharsetID: 20; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
-+
+  (CharsetID: 21; CharSetName: 'ISO8859_1'; CharSetWidth: 1; CodePage: 28591; AllowReverseLookup: true),
-+
+  (CharsetID: 22; CharSetName: 'ISO8859_2'; CharSetWidth: 1; CodePage: 28592; AllowReverseLookup: true),
-+
+  (CharsetID: 23; CharSetName: 'ISO8859_3'; CharSetWidth: 1; CodePage: 28593; AllowReverseLookup: true),
-+
+  (CharsetID: 24; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 25; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 26; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 27; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 28; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 29; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 30; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 31; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 32; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 33; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 34; CharSetName: 'ISO8859_4'; CharSetWidth: 1; CodePage: 28594; AllowReverseLookup: true),
-+
+  (CharsetID: 35; CharSetName: 'ISO8859_5'; CharSetWidth: 1; CodePage: 28595; AllowReverseLookup: true),
-+
+  (CharsetID: 36; CharSetName: 'ISO8859_6'; CharSetWidth: 1; CodePage: 28596; AllowReverseLookup: true),
-+
+  (CharsetID: 37; CharSetName: 'ISO8859_7'; CharSetWidth: 1; CodePage: 28597; AllowReverseLookup: true),
-+
+  (CharsetID: 38; CharSetName: 'ISO8859_8'; CharSetWidth: 1; CodePage: 28598; AllowReverseLookup: true),
-+
+  (CharsetID: 39; CharSetName: 'ISO8859_9'; CharSetWidth: 1; CodePage: 28599; AllowReverseLookup: true),
-+
+  (CharsetID: 40; CharSetName: 'ISO8859_13'; CharSetWidth: 1; CodePage: 28603; AllowReverseLookup: true),
-+
+  (CharsetID: 41; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 42; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 43; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 44; CharSetName: 'KSC_5601'; CharSetWidth: 2; CodePage: 949; AllowReverseLookup: true),
-+
+  (CharsetID: 45; CharSetName: 'DOS852'; CharSetWidth: 1; CodePage: 852; AllowReverseLookup: true),
-+
+  (CharsetID: 46; CharSetName: 'DOS857'; CharSetWidth: 1; CodePage: 857; AllowReverseLookup: true),
-+
+  (CharsetID: 47; CharSetName: 'DOS861'; CharSetWidth: 1; CodePage: 861; AllowReverseLookup: true),
-+
+  (CharsetID: 48; CharSetName: 'DOS866'; CharSetWidth: 1; CodePage: 866; AllowReverseLookup: true),
-+
+  (CharsetID: 49; CharSetName: 'DOS869'; CharSetWidth: 1; CodePage: 869; AllowReverseLookup: true),
-+
+  (CharsetID: 50; CharSetName: 'CYRL'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
-+
+  (CharsetID: 51; CharSetName: 'WIN1250'; CharSetWidth: 1; CodePage: 1250; AllowReverseLookup: true),
-+
+  (CharsetID: 52; CharSetName: 'WIN1251'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
-+
+  (CharsetID: 53; CharSetName: 'WIN1252'; CharSetWidth: 1; CodePage: 1252; AllowReverseLookup: true),
-+
+  (CharsetID: 54; CharSetName: 'WIN1253'; CharSetWidth: 1; CodePage: 1253; AllowReverseLookup: true),
-+
+  (CharsetID: 55; CharSetName: 'WIN1254'; CharSetWidth: 1; CodePage: 1254; AllowReverseLookup: true),
-+
+  (CharsetID: 56; CharSetName: 'BIG_5'; CharSetWidth: 2; CodePage: 950; AllowReverseLookup: true),
-+
+  (CharsetID: 57; CharSetName: 'GB_2312'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
-+
+  (CharsetID: 58; CharSetName: 'WIN1255'; CharSetWidth: 1; CodePage: 1255; AllowReverseLookup: true),
-+
+  (CharsetID: 59; CharSetName: 'WIN1256'; CharSetWidth: 1; CodePage: 1256; AllowReverseLookup: true),
-+
+  (CharsetID: 60; CharSetName: 'WIN1257'; CharSetWidth: 1; CodePage: 1257; AllowReverseLookup: true),
-+
+  (CharsetID: 61; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 62; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
-+
+  (CharsetID: 63; CharSetName: 'KOI8R'; CharSetWidth: 1; CodePage: 20866; AllowReverseLookup: true),
-+
+  (CharsetID: 64; CharSetName: 'KOI8U'; CharSetWidth: 1; CodePage: 21866; AllowReverseLookup: true),
-+
+  (CharsetID: 65; CharSetName: 'WIN1258'; CharSetWidth: 1; CodePage: 1258; AllowReverseLookup: true),
-+
+  (CharsetID: 66; CharSetName: 'TIS620'; CharSetWidth: 1; CodePage: 874; AllowReverseLookup: true),
-+
+  (CharsetID: 67; CharSetName: 'GBK'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
-+
+  (CharsetID: 68; CharSetName: 'CP943C'; CharSetWidth: 2; CodePage: 943; AllowReverseLookup: true),
-+
+  (CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true)
-+
+);
-+
-+
-+
-+
+{ TFBAttachment }
+constructor TFBAttachment.Create(DatabaseName: AnsiString; DPB: IDPB;
+  FSQLDialect := 3;
+  FDatabaseName := DatabaseName;
+  FDPB := DPB;
-+
+  SetLength(FUserCharSetMap,0);
+  FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError;
+end;
+  Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB);
+end;
-+
+function TFBAttachment.GetCharsetName(CharSetID: integer): AnsiString;
-+
+var i: integer;
-+
+begin
-+
+  Result := '';
-+
+  if (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) and
-+
+                                  (CharSetMap[CharSetID].CharSetID = CharSetID) then
-+
+    begin
-+
+      Result := CharSetMap[CharSetID].CharSetName;
-+
+      Exit;
-+
+    end;
-+
-+
+  for i := 0 to Length(FUserCharSetMap) - 1 do
-+
+    if FUserCharSetMap[i].CharSetID = CharSetID then
-+
+    begin
-+
+      Result := FUserCharSetMap[i].CharSetName;
-+
+      Exit;
-+
+    end;
-+
+end;
-+
-+
+function TFBAttachment.CharSetID2CodePage(CharSetID: integer;
-+
+  var CodePage: TSystemCodePage): boolean;
-+
+var i: integer;
-+
+begin
-+
+  Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
-+
+               and (CharSetMap[CharSetID].CharSetID = CharSetID);
-+
+  if Result then
-+
+    begin
-+
+      CodePage := CharSetMap[CharSetID].CodePage;
-+
+      Result := true;
-+
+      Exit;
-+
+    end;
-+
-+
+  for i := 0 to Length(FUserCharSetMap) - 1 do
-+
+    if FUserCharSetMap[i].CharSetID = CharSetID then
-+
+    begin
-+
+      CodePage := FUserCharSetMap[i].CodePage;
-+
+      Result := true;
-+
+      Exit;
-+
+    end;
-+
+end;
-+
-+
+function TFBAttachment.CodePage2CharSetID(CodePage: TSystemCodePage;
-+
+  var CharSetID: integer): boolean;
-+
+var i: integer;
-+
+begin
-+
+  Result := false;
-+
+  for i := Low(CharSetMap) to High(CharSetMap) do
-+
+    if (CharSetMap[i].AllowReverseLookup) and (CharSetMap[i].CodePage = CodePage) then
-+
+    begin
-+
+      CharSetID := CharSetMap[i].CharSetID;
-+
+      Result := true;
-+
+      Exit;
-+
+    end;
-+
-+
+  for i := 0 to Length(FUserCharSetMap) - 1 do
-+
+    if (FUserCharSetMap[i].AllowReverseLookup) and (FUserCharSetMap[i].CodePage = CodePage) then
-+
+    begin
-+
+      CharSetID := FUserCharSetMap[i].CharSetID;
-+
+      Result := true;
-+
+      Exit;
-+
+    end;
-+
+end;
-+
-+
+function TFBAttachment.CharSetName2CharSetID(CharSetName: AnsiString;
-+
+  var CharSetID: integer): boolean;
-+
+var i: integer;
-+
+begin
-+
+  Result := false;
-+
+  for i := Low(CharSetMap) to High(CharSetMap) do
-+
+    if AnsiCompareStr(CharSetMap[i].CharSetName, CharSetName) = 0 then
-+
+    begin
-+
+      CharSetID := CharSetMap[i].CharSetID;
-+
+      Result := true;
-+
+      Exit;
-+
+    end;
-+
-+
+    for i := 0 to Length(FUserCharSetMap) - 1 do
-+
+      if AnsiCompareStr(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
-+
+      begin
-+
+        CharSetID := FUserCharSetMap[i].CharSetID;
-+
+        Result := true;
-+
+        Exit;
-+
+      end;
-+
+end;
-+
-+
+function TFBAttachment.CharSetWidth(CharSetID: integer; var Width: integer
-+
+  ): boolean;
-+
+var i: integer;
-+
+begin
-+
+  Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
-+
+               and (CharSetMap[CharSetID].CharSetID = CharSetID);
-+
+  if Result then
-+
+    begin
-+
+      Width := CharSetMap[CharSetID].CharSetWidth;
-+
+      Result := true;
-+
+      Exit;
-+
+    end;
-+
-+
+  for i := 0 to Length(FUserCharSetMap) - 1 do
-+
+    if FUserCharSetMap[i].CharSetID = CharSetID then
-+
+    begin
-+
+      Width := FUserCharSetMap[i].CharSetWidth;
-+
+      Result := true;
-+
+      Exit;
-+
+    end;
-+
+end;
-+
-+
+const
-+
+  sqlLookupCharSet = 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER From RDB$CHARACTER_SETS '+
-+
+                     'Where RDB$SYSTEM_FLAG = 0 and RDB$CHARACTER_SET_NAME = UPPER(?)';
-+
-+
+procedure TFBAttachment.RegisterCharSet(CharSetName: AnsiString;
-+
+  CodePage: TSystemCodePage; AllowReverseLookup: boolean; out CharSetID: integer
-+
+  );
-+
+var CharSets: IResultSet;
-+
+    idx: integer;
-+
+begin
-+
+  if CharSetName2CharSetID(CharSetName,CharSetID) then
-+
+    IBError(ibxeCharacterSetExists,[CharSetName]);
-+
-+
+  CharSets := OpenCursorAtStart(sqlLookupCharSet,[CharSetName]);
-+
+  if CharSets.IsEof then
-+
+    IBError(ibxeUnknownUserCharSet,[CharSetName]);
-+
-+
+  idx := Length(FUserCharSetMap);
-+
+  SetLength(FUserCharSetMap,idx+1);
-+
+  FUserCharSetMap[idx].AllowReverseLookup := AllowReverseLookup;
-+
+  FUserCharSetMap[idx].CharSetID := CharSets[0].AsInteger;
-+
+  FUserCharSetMap[idx].CharSetName := AnsiUpperCase(CharSetName);
-+
+  FUserCharSetMap[idx].CharSetWidth := CharSets[1].AsInteger;
-+
+  FUserCharSetMap[idx].CodePage := CodePage;
-+
+  CharSetID := CharSets[0].AsInteger;
-+
+end;
-+
+end.

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing ibx/trunk/fbintf/client/FBAttachment.pas (file contents): Revision 56 by tony, Mon Mar 6 10:20:02 2017 UTC vs. Revision 60 by tony, Mon Mar 27 15:21:02 2017 UTC

Diff Legend

Comparing ibx/trunk/fbintf/client/FBAttachment.pas (file contents):
Revision 56 by tony, Mon Mar 6 10:20:02 2017 UTC vs.
Revision 60 by tony, Mon Mar 27 15:21:02 2017 UTC