16 |
|
* |
17 |
|
* The Initial Developer of the Original Code is Tony Whyman. |
18 |
|
* |
19 |
< |
* The Original Code is (C) 2016 Tony Whyman, MWA Software |
19 |
> |
* The Original Code is (C) 2016-2021 Tony Whyman, MWA Software |
20 |
|
* (http://www.mwasoftware.co.uk). |
21 |
|
* |
22 |
|
* All Rights Reserved. |
39 |
|
|
40 |
|
uses |
41 |
|
Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB, FBParamBlock, |
42 |
< |
FBActivityMonitor, FBClientAPI; |
42 |
> |
FBActivityMonitor, FBClientAPI, IBUtils; |
43 |
> |
|
44 |
> |
const |
45 |
> |
DefaultMaxInlineBlobLimit = 8192; |
46 |
|
|
47 |
|
type |
48 |
|
TCharsetMap = record |
53 |
|
AllowReverseLookup: boolean; {used to ensure that lookup of CP_UTF* does not return UNICODE_FSS} |
54 |
|
end; |
55 |
|
|
56 |
+ |
{ Database Journalling. |
57 |
+ |
|
58 |
+ |
This class is intended to support a client side journal of all database |
59 |
+ |
updates, inserts and deletes made by the client during a session. It also records |
60 |
+ |
the transaction each update was made under. |
61 |
+ |
|
62 |
+ |
The database schema is required to include a control table "IBX$JOURNALS" and |
63 |
+ |
an SQL Sequence IBX$SESSIONS. These are created by the class when the |
64 |
+ |
database is opened, if they are not already present. However, it is recommended |
65 |
+ |
that they are created as an orginal part of the database schema in order to |
66 |
+ |
unnecessarily avoid each user being given sufficient priviledge to create tables |
67 |
+ |
and Sequences. |
68 |
+ |
|
69 |
+ |
Syntax: |
70 |
+ |
|
71 |
+ |
Transaction Start: |
72 |
+ |
*S:<date/time>,<attachmentid>,<session id>,<transaction no.>,<string length>:<transaction Name>,<string length>:<TPB>,<default Completion> |
73 |
+ |
|
74 |
+ |
Transaction Commit: |
75 |
+ |
*C:<date/time>,<attachmentid>,<session id>,<transaction no.> |
76 |
+ |
|
77 |
+ |
Transaction Commit retaining : |
78 |
+ |
*c:<date/time>,<attachmentid>,<session id>,<transaction no.><old transaction no.> |
79 |
+ |
|
80 |
+ |
Transaction Rollback: |
81 |
+ |
*R:<date/time>,<attachmentid>,<session id>,<transaction no.> |
82 |
+ |
|
83 |
+ |
Transaction Rollback retaining: |
84 |
+ |
*r:<date/time>,<attachmentid>,<session id>,<transaction no.><old transaction no.> |
85 |
+ |
|
86 |
+ |
Update/Insert/Delete |
87 |
+ |
*Q:<date/time>,<attachmentid>,<session id>,<transaction no.>,<length of query text in bytes>:<query text> |
88 |
+ |
|
89 |
+ |
} |
90 |
+ |
|
91 |
+ |
{ TFBJournaling } |
92 |
+ |
|
93 |
+ |
TFBJournaling = class(TActivityHandler, IJournallingHook) |
94 |
+ |
private |
95 |
+ |
{Logfile} |
96 |
+ |
const sQueryJournal = '*Q:''%s'',%d,%d,%d,%d:%s' + LineEnding; |
97 |
+ |
const sTransStartJnl = '*S:''%s'',%d,%d,%d,%d:%s,%d:%s,%d' + LineEnding; |
98 |
+ |
const sTransCommitJnl = '*C:''%s'',%d,%d,%d' + LineEnding; |
99 |
+ |
const sTransCommitFailJnl = '*F:''%s'',%d,%d,%d' + LineEnding; |
100 |
+ |
const sTransCommitRetJnl = '*c:''%s'',%d,%d,%d,%d' + LineEnding; |
101 |
+ |
const sTransRollBackJnl = '*R:''%s'',%d,%d,%d' + LineEnding; |
102 |
+ |
const sTransRollBackFailJnl = '*f:''%s'',%d,%d,%d' + LineEnding; |
103 |
+ |
const sTransRollBackRetJnl = '*r:''%s'',%d,%d,%d,%d' + LineEnding; |
104 |
+ |
private |
105 |
+ |
FOptions: TJournalOptions; |
106 |
+ |
FJournalFilePath: string; |
107 |
+ |
FJournalFileStream: TStream; |
108 |
+ |
FSessionID: integer; |
109 |
+ |
FDoNotJournal: boolean; |
110 |
+ |
function GetDateTimeFmt: AnsiString; |
111 |
+ |
protected |
112 |
+ |
procedure EndSession(RetainJournal: boolean); |
113 |
+ |
function GetAttachment: IAttachment; virtual; abstract; |
114 |
+ |
public |
115 |
+ |
{IAttachment} |
116 |
+ |
procedure Disconnect(Force: boolean=false); virtual; |
117 |
+ |
public |
118 |
+ |
{IJournallingHook} |
119 |
+ |
procedure TransactionStart(Tr: ITransaction); |
120 |
+ |
function TransactionEnd( TransactionID: integer; Completion: TTrCompletionState): boolean; |
121 |
+ |
procedure TransactionRetained(Tr: ITransaction; OldTransactionID: integer; |
122 |
+ |
Action: TTransactionAction); |
123 |
+ |
procedure ExecQuery(Stmt: IStatement); |
124 |
+ |
procedure ExecImmediateJnl(sql: AnsiString; tr: ITransaction); |
125 |
+ |
public |
126 |
+ |
{Client side Journaling} |
127 |
+ |
function JournalingActive: boolean; |
128 |
+ |
function GetJournalOptions: TJournalOptions; |
129 |
+ |
function StartJournaling(aJournalLogFile: AnsiString): integer; overload; |
130 |
+ |
function StartJournaling(aJournalLogFile: AnsiString; Options: TJournalOptions): integer; overload; |
131 |
+ |
function StartJournaling(S: TStream; Options: TJournalOptions): integer; overload; |
132 |
+ |
procedure StopJournaling(RetainJournal: boolean); |
133 |
+ |
end; |
134 |
+ |
|
135 |
|
{ TFBAttachment } |
136 |
|
|
137 |
< |
TFBAttachment = class(TActivityHandler) |
137 |
> |
TFBAttachment = class(TFBJournaling) |
138 |
|
private |
139 |
|
FDPB: IDPB; |
140 |
|
FFirebirdAPI: IFirebirdAPI; |
142 |
|
FODSMinorVersion: integer; |
143 |
|
FUserCharSetMap: array of TCharSetMap; |
144 |
|
FSecDatabase: AnsiString; |
145 |
< |
protected |
146 |
< |
FDatabaseName: AnsiString; |
65 |
< |
FRaiseExceptionOnConnectError: boolean; |
145 |
> |
FInlineBlobLimit: integer; |
146 |
> |
FAttachmentID: integer; |
147 |
|
FSQLDialect: integer; |
148 |
|
FHasDefaultCharSet: boolean; |
149 |
|
FCharSetID: integer; |
150 |
|
FCodePage: TSystemCodePage; |
151 |
|
FRemoteProtocol: AnsiString; |
152 |
|
FAuthMethod: AnsiString; |
153 |
+ |
FHasConnectionInfo: boolean; |
154 |
+ |
procedure NeedDBInfo; |
155 |
+ |
procedure NeedConnectionInfo; |
156 |
+ |
protected |
157 |
+ |
FDatabaseName: AnsiString; |
158 |
+ |
FRaiseExceptionOnConnectError: boolean; |
159 |
|
constructor Create(api: TFBClientAPI; DatabaseName: AnsiString; DPB: IDPB; |
160 |
|
RaiseExceptionOnConnectError: boolean); |
161 |
|
procedure CheckHandle; virtual; abstract; |
162 |
+ |
procedure ClearCachedInfo; |
163 |
|
function GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString; |
76 |
– |
procedure GetODSAndConnectionInfo; |
164 |
|
function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation; virtual; abstract; |
165 |
|
function IsConnected: boolean; virtual; abstract; |
166 |
|
procedure EndAllTransactions; |
167 |
|
procedure DPBFromCreateSQL(CreateSQL: AnsiString); |
168 |
|
procedure SetParameters(SQLParams: ISQLParams; params: array of const); |
169 |
+ |
procedure SetSQLDialect(aValue: integer); |
170 |
+ |
procedure UseServerICUChanged; virtual; |
171 |
|
public |
172 |
|
destructor Destroy; override; |
173 |
+ |
procedure Disconnect(Force: boolean); override; |
174 |
|
function getFirebirdAPI: IFirebirdAPI; |
175 |
|
function getDPB: IDPB; |
176 |
|
function AllocateBPB: IBPB; |
177 |
|
function AllocateDIRB: IDIRB; |
178 |
< |
function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract; |
179 |
< |
function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract; |
180 |
< |
procedure Disconnect(Force: boolean=false); virtual; abstract; |
178 |
> |
function StartTransaction(TPB: array of byte; |
179 |
> |
DefaultCompletion: TTransactionCompletion; |
180 |
> |
aName: AnsiString=''): ITransaction; overload; virtual; abstract; |
181 |
> |
function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion; |
182 |
> |
aName: AnsiString=''): ITransaction; overload; virtual; abstract; |
183 |
|
procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); overload; virtual; abstract; |
184 |
|
procedure ExecImmediate(TPB: array of byte; sql: AnsiString; aSQLDialect: integer); overload; |
185 |
|
procedure ExecImmediate(transaction: ITransaction; sql: AnsiString); overload; |
188 |
|
function ExecuteSQL(transaction: ITransaction; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload; |
189 |
|
function ExecuteSQL(TPB: array of byte; sql: AnsiString; params: array of const): IResults; overload; |
190 |
|
function ExecuteSQL(transaction: ITransaction; sql: AnsiString; params: array of const): IResults; overload; |
191 |
< |
function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload; |
191 |
> |
function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; |
192 |
> |
Scrollable: boolean=false): IResultSet; overload; |
193 |
|
function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; |
194 |
|
params: array of const): IResultSet; overload; |
195 |
< |
function OpenCursor(transaction: ITransaction; sql: AnsiString): IResultSet; overload; |
195 |
> |
function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload; |
196 |
|
function OpenCursor(transaction: ITransaction; sql: AnsiString; |
197 |
|
params: array of const): IResultSet; overload; |
198 |
< |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload; |
198 |
> |
function OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean; |
199 |
> |
params: array of const): IResultSet; overload; |
200 |
> |
function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean; |
201 |
> |
params: array of const): IResultSet; overload; |
202 |
|
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; |
203 |
+ |
Scrollable: boolean=false): IResultSet; overload; |
204 |
+ |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; |
205 |
+ |
params: array of const): IResultSet; overload; |
206 |
+ |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean; |
207 |
|
params: array of const): IResultSet; overload; |
208 |
< |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString): IResultSet; overload; |
208 |
> |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): IResultSet; overload; |
209 |
|
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; |
210 |
|
params: array of const): IResultSet; overload; |
211 |
< |
function OpenCursorAtStart(sql: AnsiString): IResultSet; overload; |
211 |
> |
function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean; |
212 |
> |
params: array of const): IResultSet; overload; |
213 |
> |
function OpenCursorAtStart(sql: AnsiString;Scrollable: boolean=false): IResultSet; overload; |
214 |
> |
function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean; |
215 |
> |
params: array of const): IResultSet; overload; |
216 |
|
function OpenCursorAtStart(sql: AnsiString; |
217 |
|
params: array of const): IResultSet; overload; |
218 |
< |
function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; overload; virtual; abstract; |
219 |
< |
function Prepare(transaction: ITransaction; sql: AnsiString): IStatement; overload; |
218 |
> |
function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; CursorName: AnsiString=''): IStatement; overload; virtual; abstract; |
219 |
> |
function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: AnsiString=''): IStatement; overload; |
220 |
|
function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString; |
221 |
< |
aSQLDialect: integer; GenerateParamNames: boolean=false): IStatement; overload; virtual; abstract; |
221 |
> |
aSQLDialect: integer; GenerateParamNames: boolean=false; |
222 |
> |
CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload; virtual; abstract; |
223 |
|
function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString; |
224 |
< |
GenerateParamNames: boolean=false): IStatement; overload; |
224 |
> |
GenerateParamNames: boolean=false; |
225 |
> |
CaseSensitiveParams: boolean = false; CursorName: AnsiString=''): IStatement; overload; |
226 |
|
function GetEventHandler(Events: TStrings): IEvents; overload; virtual; abstract; |
227 |
|
function GetEventHandler(Event: AnsiString): IEvents; overload; |
228 |
|
|
229 |
|
function GetSQLDialect: integer; |
230 |
+ |
function GetAttachmentID: integer; |
231 |
+ |
function CreateBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BPB: IBPB=nil): IBlob; overload; |
232 |
+ |
function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload; virtual; abstract; |
233 |
|
function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; virtual; abstract; |
234 |
+ |
function OpenBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; |
235 |
|
function OpenBlob(transaction: ITransaction; Field: ISQLData; BPB: IBPB=nil): IBlob; overload; |
236 |
< |
property SQLDialect: integer read FSQLDialect; |
236 |
> |
function CreateArray(transaction: ITransaction; RelationName, ColumnName: AnsiString |
237 |
> |
): IArray; overload; |
238 |
> |
function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload; virtual; abstract; |
239 |
> |
function OpenArray(transaction: ITransaction; RelationName, ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray; overload; |
240 |
> |
function OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray; overload; virtual; abstract; |
241 |
> |
property SQLDialect: integer read GetSQLDialect; |
242 |
|
property DPB: IDPB read FDPB; |
243 |
< |
public |
244 |
< |
function GetDBInformation(Requests: array of byte): IDBInformation; overload; |
245 |
< |
function GetDBInformation(Request: byte): IDBInformation; overload; |
246 |
< |
function GetDBInformation(Requests: IDIRB): IDBInformation; overload; |
247 |
< |
function GetConnectString: AnsiString; |
248 |
< |
function GetRemoteProtocol: AnsiString; |
249 |
< |
function GetAuthenticationMethod: AnsiString; |
250 |
< |
function GetSecurityDatabase: AnsiString; |
251 |
< |
function GetODSMajorVersion: integer; |
252 |
< |
function GetODSMinorVersion: integer; |
253 |
< |
{Character Sets} |
254 |
< |
function HasDefaultCharSet: boolean; |
255 |
< |
function GetDefaultCharSetID: integer; |
256 |
< |
function GetCharsetName(CharSetID: integer): AnsiString; |
257 |
< |
function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean; |
258 |
< |
function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean; |
259 |
< |
function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean; |
260 |
< |
function CharSetWidth(CharSetID: integer; var Width: integer): boolean; |
261 |
< |
procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage; |
262 |
< |
AllowReverseLookup:boolean; out CharSetID: integer); |
263 |
< |
property CharSetID: integer read FCharSetID; |
264 |
< |
property CodePage: TSystemCodePage read FCodePage; |
243 |
> |
public |
244 |
> |
function GetDBInformation(Requests: array of byte): IDBInformation; overload; |
245 |
> |
function GetDBInformation(Request: byte): IDBInformation; overload; |
246 |
> |
function GetDBInformation(Requests: IDIRB): IDBInformation; overload; |
247 |
> |
function GetConnectString: AnsiString; |
248 |
> |
function GetRemoteProtocol: AnsiString; |
249 |
> |
function GetAuthenticationMethod: AnsiString; |
250 |
> |
function GetSecurityDatabase: AnsiString; |
251 |
> |
function GetODSMajorVersion: integer; |
252 |
> |
function GetODSMinorVersion: integer; |
253 |
> |
function GetCharSetID: integer; |
254 |
> |
function HasDecFloatSupport: boolean; virtual; |
255 |
> |
function GetInlineBlobLimit: integer; |
256 |
> |
procedure SetInlineBlobLimit(limit: integer); |
257 |
> |
function HasBatchMode: boolean; virtual; |
258 |
> |
function HasTable(aTableName: AnsiString): boolean; |
259 |
> |
function HasFunction(aFunctionName: AnsiString): boolean; |
260 |
> |
function HasProcedure(aProcName: AnsiString): boolean; |
261 |
> |
|
262 |
> |
public |
263 |
> |
{Character Sets} |
264 |
> |
function HasDefaultCharSet: boolean; |
265 |
> |
function GetDefaultCharSetID: integer; |
266 |
> |
function GetCharsetName(CharSetID: integer): AnsiString; |
267 |
> |
function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean; |
268 |
> |
function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean; |
269 |
> |
function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean; |
270 |
> |
function CharSetWidth(CharSetID: integer; var Width: integer): boolean; |
271 |
> |
procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage; |
272 |
> |
AllowReverseLookup:boolean; out CharSetID: integer); |
273 |
> |
function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData; virtual; abstract; |
274 |
> |
function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData; virtual; abstract; |
275 |
> |
property CharSetID: integer read GetCharSetID; |
276 |
> |
property CodePage: TSystemCodePage read FCodePage; |
277 |
> |
|
278 |
> |
public |
279 |
> |
{Time Zone Support} |
280 |
> |
function GetTimeZoneServices: ITimeZoneServices; virtual; |
281 |
> |
function HasTimeZoneSupport: boolean; virtual; |
282 |
> |
|
283 |
> |
end; |
284 |
> |
|
285 |
> |
{ TDPBItem } |
286 |
> |
|
287 |
> |
TDPBItem = class(TParamBlockItem,IDPBItem) |
288 |
> |
public |
289 |
> |
function getParamTypeName: AnsiString; override; |
290 |
> |
end; |
291 |
> |
|
292 |
> |
{ TDPB } |
293 |
> |
|
294 |
> |
TDPB = class (TCustomParamBlock<TDPBItem,IDPBItem>, IDPB) |
295 |
> |
protected |
296 |
> |
function LookupItemType(ParamTypeName: AnsiString): byte; override; |
297 |
> |
public |
298 |
> |
constructor Create(api: TFBClientAPI); |
299 |
> |
function GetParamTypeName(ParamType: byte): Ansistring; |
300 |
> |
{$IFDEF FPC} |
301 |
> |
function IDPB.GetDPBParamTypeName = GetParamTypeName; |
302 |
> |
{$ELSE} |
303 |
> |
function GetDPBParamTypeName(ParamType: byte): Ansistring; |
304 |
> |
{$ENDIF} |
305 |
|
end; |
306 |
|
|
307 |
|
implementation |
308 |
|
|
309 |
< |
uses FBMessages, IBUtils, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF}; |
309 |
> |
uses FBMessages, IBErrorCodes, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF}; |
310 |
> |
|
311 |
> |
const |
312 |
> |
{Journaling} |
313 |
> |
sJournalTableName = 'IBX$JOURNALS'; |
314 |
> |
sSequenceName = 'IBX$SESSIONS'; |
315 |
> |
|
316 |
> |
sqlCreateJournalTable = |
317 |
> |
'Create Table ' + sJournalTableName + '(' + |
318 |
> |
' IBX$SessionID Integer not null, '+ |
319 |
> |
' IBX$TransactionID Integer not null, '+ |
320 |
> |
' IBX$OldTransactionID Integer, '+ |
321 |
> |
' IBX$USER VarChar(32) Default CURRENT_USER, '+ |
322 |
> |
' IBX$CREATED TIMESTAMP Default CURRENT_TIMESTAMP, '+ |
323 |
> |
' Primary Key(IBX$SessionID,IBX$TransactionID)' + |
324 |
> |
')'; |
325 |
> |
|
326 |
> |
sqlCreateSequence = 'CREATE SEQUENCE ' + sSequenceName; |
327 |
> |
|
328 |
> |
sqlGetNextSessionID = 'Select Gen_ID(' + sSequenceName + ',1) as SessionID From RDB$DATABASE'; |
329 |
> |
|
330 |
> |
sqlRecordJournalEntry = 'Insert into ' + sJournalTableName + '(IBX$SessionID,IBX$TransactionID,IBX$OldTransactionID) '+ |
331 |
> |
'Values(?,?,?)'; |
332 |
> |
|
333 |
> |
sqlCleanUpSession = 'Delete From ' + sJournalTableName + ' Where IBX$SessionID = ?'; |
334 |
|
|
335 |
|
const |
336 |
|
CharSetMap: array [0..69] of TCharsetMap = ( |
406 |
|
(CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true) |
407 |
|
); |
408 |
|
|
409 |
+ |
const |
410 |
+ |
isc_dpb_last_dpb_constant = isc_dpb_decfloat_traps; |
411 |
+ |
|
412 |
+ |
DPBConstantNames: array[1..isc_dpb_last_dpb_constant] of string = ( |
413 |
+ |
'cdd_pathname', |
414 |
+ |
'allocation', |
415 |
+ |
'journal', |
416 |
+ |
'page_size', |
417 |
+ |
'num_buffers', |
418 |
+ |
'buffer_length', |
419 |
+ |
'debug', |
420 |
+ |
'garbage_collect', |
421 |
+ |
'verify', |
422 |
+ |
'sweep', |
423 |
+ |
'enable_journal', |
424 |
+ |
'disable_journal', |
425 |
+ |
'dbkey_scope', |
426 |
+ |
'number_of_users', |
427 |
+ |
'trace', |
428 |
+ |
'no_garbage_collect', |
429 |
+ |
'damaged', |
430 |
+ |
'license', |
431 |
+ |
'sys_user_name', |
432 |
+ |
'encrypt_key', |
433 |
+ |
'activate_shadow', |
434 |
+ |
'sweep_interval', |
435 |
+ |
'delete_shadow', |
436 |
+ |
'force_write', |
437 |
+ |
'begin_log', |
438 |
+ |
'quit_log', |
439 |
+ |
'no_reserve', |
440 |
+ |
'user_name', |
441 |
+ |
'password', |
442 |
+ |
'password_enc', |
443 |
+ |
'sys_user_name_enc', |
444 |
+ |
'interp', |
445 |
+ |
'online_dump', |
446 |
+ |
'old_file_size', |
447 |
+ |
'old_num_files', |
448 |
+ |
'old_file', |
449 |
+ |
'old_start_page', |
450 |
+ |
'old_start_seqno', |
451 |
+ |
'old_start_file', |
452 |
+ |
'drop_walfile', |
453 |
+ |
'old_dump_id', |
454 |
+ |
'wal_backup_dir', |
455 |
+ |
'wal_chkptlen', |
456 |
+ |
'wal_numbufs', |
457 |
+ |
'wal_bufsize', |
458 |
+ |
'wal_grp_cmt_wait', |
459 |
+ |
'lc_messages', |
460 |
+ |
'lc_ctype', |
461 |
+ |
'cache_manager', |
462 |
+ |
'shutdown', |
463 |
+ |
'online', |
464 |
+ |
'shutdown_delay', |
465 |
+ |
'reserved', |
466 |
+ |
'overwrite', |
467 |
+ |
'sec_attach', |
468 |
+ |
'disable_wal', |
469 |
+ |
'connect_timeout', |
470 |
+ |
'dummy_packet_interval', |
471 |
+ |
'gbak_attach', |
472 |
+ |
'sql_role_name', |
473 |
+ |
'set_page_buffers', |
474 |
+ |
'working_directory', |
475 |
+ |
'sql_dialect', |
476 |
+ |
'set_db_readonly', |
477 |
+ |
'set_db_sql_dialect', |
478 |
+ |
'gfix_attach', |
479 |
+ |
'gstat_attach', |
480 |
+ |
'set_db_charset', |
481 |
+ |
'gsec_attach', |
482 |
+ |
'address_path' , |
483 |
+ |
'process_id', |
484 |
+ |
'no_db_triggers', |
485 |
+ |
'trusted_auth', |
486 |
+ |
'process_name', |
487 |
+ |
'trusted_role', |
488 |
+ |
'org_filename', |
489 |
+ |
'utf8_filename', |
490 |
+ |
'ext_call_depth', |
491 |
+ |
'auth_block', |
492 |
+ |
'client_version', |
493 |
+ |
'remote_protocol', |
494 |
+ |
'host_name', |
495 |
+ |
'os_user', |
496 |
+ |
'specific_auth_data', |
497 |
+ |
'auth_plugin_list', |
498 |
+ |
'auth_plugin_name', |
499 |
+ |
'config', |
500 |
+ |
'nolinger', |
501 |
+ |
'reset_icu', |
502 |
+ |
'map_attach', |
503 |
+ |
'session_time_zone', |
504 |
+ |
'set_db_replica', |
505 |
+ |
'set_bind', |
506 |
+ |
'decfloat_round', |
507 |
+ |
'decfloat_traps' |
508 |
+ |
); |
509 |
+ |
|
510 |
+ |
type |
511 |
+ |
|
512 |
+ |
{ TQueryProcessor } |
513 |
+ |
|
514 |
+ |
TQueryProcessor=class(TSQLTokeniser) |
515 |
+ |
private |
516 |
+ |
FInString: AnsiString; |
517 |
+ |
FIndex: integer; |
518 |
+ |
FStmt: IStatement; |
519 |
+ |
function DoExecute: AnsiString; |
520 |
+ |
function GetParamValue(ParamIndex: integer): AnsiString; |
521 |
+ |
protected |
522 |
+ |
function GetChar: AnsiChar; override; |
523 |
+ |
public |
524 |
+ |
class function Execute(Stmt: IStatement): AnsiString; |
525 |
+ |
end; |
526 |
+ |
|
527 |
+ |
{ TQueryProcessor } |
528 |
+ |
|
529 |
+ |
function TQueryProcessor.DoExecute: AnsiString; |
530 |
+ |
var token: TSQLTokens; |
531 |
+ |
ParamIndex: integer; |
532 |
+ |
begin |
533 |
+ |
Result := ''; |
534 |
+ |
ParamIndex := 0; |
535 |
+ |
|
536 |
+ |
while not EOF do |
537 |
+ |
begin |
538 |
+ |
token := GetNextToken; |
539 |
+ |
case token of |
540 |
+ |
sqltPlaceHolder: |
541 |
+ |
begin |
542 |
+ |
Result := Result + GetParamValue(ParamIndex); |
543 |
+ |
Inc(ParamIndex); |
544 |
+ |
end; |
545 |
+ |
else |
546 |
+ |
Result := Result + TokenText; |
547 |
+ |
end; |
548 |
+ |
end; |
549 |
+ |
end; |
550 |
+ |
|
551 |
+ |
function TQueryProcessor.GetParamValue(ParamIndex: integer): AnsiString; |
552 |
+ |
begin |
553 |
+ |
with FStmt.SQLParams[ParamIndex] do |
554 |
+ |
begin |
555 |
+ |
if IsNull then |
556 |
+ |
Result := 'NULL' |
557 |
+ |
else |
558 |
+ |
case GetSQLType of |
559 |
+ |
SQL_BLOB: |
560 |
+ |
if getSubType = 1 then {string} |
561 |
+ |
Result := '''' + SQLSafeString(GetAsString) + '''' |
562 |
+ |
else |
563 |
+ |
Result := TSQLXMLReader.FormatBlob(GetAsString,getSubType); |
564 |
+ |
|
565 |
+ |
SQL_ARRAY: |
566 |
+ |
Result := TSQLXMLReader.FormatArray(getAsArray); |
567 |
+ |
|
568 |
+ |
SQL_VARYING, |
569 |
+ |
SQL_TEXT, |
570 |
+ |
SQL_TIMESTAMP, |
571 |
+ |
SQL_TYPE_DATE, |
572 |
+ |
SQL_TYPE_TIME, |
573 |
+ |
SQL_TIMESTAMP_TZ_EX, |
574 |
+ |
SQL_TIME_TZ_EX, |
575 |
+ |
SQL_TIMESTAMP_TZ, |
576 |
+ |
SQL_TIME_TZ: |
577 |
+ |
Result := '''' + SQLSafeString(GetAsString) + ''''; |
578 |
+ |
else |
579 |
+ |
Result := GetAsString; |
580 |
+ |
end; |
581 |
+ |
end; |
582 |
+ |
end; |
583 |
+ |
|
584 |
+ |
function TQueryProcessor.GetChar: AnsiChar; |
585 |
+ |
begin |
586 |
+ |
if FIndex <= Length(FInString) then |
587 |
+ |
begin |
588 |
+ |
Result := FInString[FIndex]; |
589 |
+ |
Inc(FIndex); |
590 |
+ |
end |
591 |
+ |
else |
592 |
+ |
Result := #0; |
593 |
+ |
end; |
594 |
+ |
|
595 |
+ |
class function TQueryProcessor.Execute(Stmt: IStatement): AnsiString; |
596 |
+ |
begin |
597 |
+ |
if not Stmt.IsPrepared then |
598 |
+ |
IBError(ibxeSQLClosed,[]); |
599 |
+ |
with self.Create do |
600 |
+ |
try |
601 |
+ |
FStmt := Stmt; |
602 |
+ |
FInString := Stmt.GetProcessedSQLText; |
603 |
+ |
FIndex := 1; |
604 |
+ |
Result := Trim(DoExecute); |
605 |
+ |
finally |
606 |
+ |
Free; |
607 |
+ |
end; |
608 |
+ |
end; |
609 |
+ |
|
610 |
+ |
{ TFBJournaling } |
611 |
|
|
612 |
+ |
function TFBJournaling.GetDateTimeFmt: AnsiString; |
613 |
+ |
begin |
614 |
+ |
{$IF declared(DefaultFormatSettings)} |
615 |
+ |
with DefaultFormatSettings do |
616 |
+ |
{$ELSE} |
617 |
+ |
{$IF declared(FormatSettings)} |
618 |
+ |
with FormatSettings do |
619 |
+ |
{$IFEND} |
620 |
+ |
{$IFEND} |
621 |
+ |
Result := ShortDateFormat + ' ' + LongTimeFormat + '.zzzz' |
622 |
+ |
end; |
623 |
|
|
624 |
+ |
procedure TFBJournaling.EndSession(RetainJournal: boolean); |
625 |
+ |
begin |
626 |
+ |
if JournalingActive and (FJournalFilePath <> '') then |
627 |
+ |
begin |
628 |
+ |
FreeAndNil(FJournalFileStream); |
629 |
+ |
if not (joNoServerTable in FOptions) and not RetainJournal then |
630 |
+ |
try |
631 |
+ |
GetAttachment.ExecuteSQL([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency], |
632 |
+ |
sqlCleanUpSession,[FSessionID]); |
633 |
+ |
sysutils.DeleteFile(FJournalFilePath); |
634 |
+ |
except On E: EIBInterBaseError do |
635 |
+ |
if E.IBErrorCode <> isc_lost_db_connection then |
636 |
+ |
raise; |
637 |
+ |
{ignore - do not delete journal if database gone away} |
638 |
+ |
end; |
639 |
+ |
FSessionID := -1; |
640 |
+ |
end; |
641 |
+ |
end; |
642 |
+ |
|
643 |
+ |
procedure TFBJournaling.Disconnect(Force: boolean); |
644 |
+ |
begin |
645 |
+ |
if JournalingActive then |
646 |
+ |
EndSession(Force); |
647 |
+ |
end; |
648 |
+ |
|
649 |
+ |
procedure TFBJournaling.TransactionStart(Tr: ITransaction); |
650 |
+ |
var LogEntry: AnsiString; |
651 |
+ |
TPBText: AnsiString; |
652 |
+ |
begin |
653 |
+ |
if not (joNoServerTable in FOptions) then |
654 |
+ |
try |
655 |
+ |
FDoNotJournal := true; |
656 |
+ |
GetAttachment.ExecuteSQL(Tr,sqlRecordJournalEntry,[FSessionID,Tr.GetTransactionID,NULL]); |
657 |
+ |
finally |
658 |
+ |
FDoNotJournal := false; |
659 |
+ |
end; |
660 |
+ |
TPBText := Tr.getTPB.AsText; |
661 |
+ |
LogEntry := Format(sTransStartJnl,[FBFormatDateTime(GetDateTimeFmt,Now), |
662 |
+ |
GetAttachment.GetAttachmentID, |
663 |
+ |
FSessionID, |
664 |
+ |
Tr.GetTransactionID, |
665 |
+ |
Length(Tr.TransactionName), |
666 |
+ |
Tr.TransactionName, |
667 |
+ |
Length(TPBText),TPBText, |
668 |
+ |
ord(tr.GetDefaultCompletion)]); |
669 |
+ |
if assigned(FJournalFileStream) then |
670 |
+ |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry)); |
671 |
+ |
end; |
672 |
+ |
|
673 |
+ |
function TFBJournaling.TransactionEnd(TransactionID: integer; |
674 |
+ |
Completion: TTrCompletionState): boolean; |
675 |
+ |
|
676 |
+ |
var LogEntry: AnsiString; |
677 |
+ |
begin |
678 |
+ |
Result := false; |
679 |
+ |
case Completion of |
680 |
+ |
trRolledback: |
681 |
+ |
begin |
682 |
+ |
LogEntry := Format(sTransRollbackJnl,[FBFormatDateTime(GetDateTimeFmt,Now), |
683 |
+ |
GetAttachment.GetAttachmentID, |
684 |
+ |
FSessionID,TransactionID]); |
685 |
+ |
Result := true; |
686 |
+ |
end; |
687 |
+ |
|
688 |
+ |
trRollbackFailed: |
689 |
+ |
begin |
690 |
+ |
LogEntry := Format(sTransRollbackFailJnl,[FBFormatDateTime(GetDateTimeFmt,Now), |
691 |
+ |
GetAttachment.GetAttachmentID, |
692 |
+ |
FSessionID,TransactionID]); |
693 |
+ |
Result := true; |
694 |
+ |
end; |
695 |
+ |
|
696 |
+ |
trCommitted: |
697 |
+ |
begin |
698 |
+ |
LogEntry := Format(sTransCommitJnl,[FBFormatDateTime(GetDateTimeFmt,Now), |
699 |
+ |
GetAttachment.GetAttachmentID, |
700 |
+ |
FSessionID,TransactionID]); |
701 |
+ |
Result := true; |
702 |
+ |
end; |
703 |
+ |
|
704 |
+ |
trCommitFailed: |
705 |
+ |
begin |
706 |
+ |
LogEntry := Format(sTransCommitFailJnl,[FBFormatDateTime(GetDateTimeFmt,Now), |
707 |
+ |
GetAttachment.GetAttachmentID, |
708 |
+ |
FSessionID,TransactionID]); |
709 |
+ |
Result := true; |
710 |
+ |
end; |
711 |
+ |
end; |
712 |
+ |
if assigned(FJournalFileStream) then |
713 |
+ |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry)); |
714 |
+ |
end; |
715 |
+ |
|
716 |
+ |
procedure TFBJournaling.TransactionRetained(Tr: ITransaction; |
717 |
+ |
OldTransactionID: integer; Action: TTransactionAction); |
718 |
+ |
var LogEntry: AnsiString; |
719 |
+ |
begin |
720 |
+ |
case Action of |
721 |
+ |
TACommitRetaining: |
722 |
+ |
LogEntry := Format(sTransCommitRetJnl,[FBFormatDateTime(GetDateTimeFmt,Now), |
723 |
+ |
GetAttachment.GetAttachmentID, |
724 |
+ |
FSessionID,Tr.GetTransactionID,OldTransactionID]); |
725 |
+ |
TARollbackRetaining: |
726 |
+ |
LogEntry := Format(sTransRollbackRetJnl,[FBFormatDateTime(GetDateTimeFmt,Now), |
727 |
+ |
GetAttachment.GetAttachmentID, |
728 |
+ |
FSessionID,Tr.GetTransactionID,OldTransactionID]); |
729 |
+ |
end; |
730 |
+ |
if assigned(FJournalFileStream) then |
731 |
+ |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry)); |
732 |
+ |
|
733 |
+ |
if not (joNoServerTable in FOptions) then |
734 |
+ |
try |
735 |
+ |
FDoNotJournal := true; |
736 |
+ |
GetAttachment.ExecuteSQL(Tr,sqlRecordJournalEntry,[FSessionID,Tr.GetTransactionID,OldTransactionID]); |
737 |
+ |
finally |
738 |
+ |
FDoNotJournal := false; |
739 |
+ |
end; |
740 |
+ |
end; |
741 |
+ |
|
742 |
+ |
procedure TFBJournaling.ExecQuery(Stmt: IStatement); |
743 |
+ |
var SQL: AnsiString; |
744 |
+ |
LogEntry: AnsiString; |
745 |
+ |
begin |
746 |
+ |
SQL := TQueryProcessor.Execute(Stmt); |
747 |
+ |
LogEntry := Format(sQueryJournal,[FBFormatDateTime(GetDateTimeFmt,Now), |
748 |
+ |
GetAttachment.GetAttachmentID, |
749 |
+ |
FSessionID, |
750 |
+ |
Stmt.GetTransaction.GetTransactionID, |
751 |
+ |
Length(SQL),SQL]); |
752 |
+ |
if assigned(FJournalFileStream) then |
753 |
+ |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry)); |
754 |
+ |
end; |
755 |
+ |
|
756 |
+ |
procedure TFBJournaling.ExecImmediateJnl(sql: AnsiString; tr: ITransaction); |
757 |
+ |
var LogEntry: AnsiString; |
758 |
+ |
begin |
759 |
+ |
LogEntry := Format(sQueryJournal,[FBFormatDateTime(GetDateTimeFmt,Now), |
760 |
+ |
GetAttachment.GetAttachmentID, |
761 |
+ |
FSessionID, |
762 |
+ |
tr.GetTransactionID, |
763 |
+ |
Length(sql),sql]); |
764 |
+ |
if assigned(FJournalFileStream) then |
765 |
+ |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry)); |
766 |
+ |
end; |
767 |
+ |
|
768 |
+ |
function TFBJournaling.JournalingActive: boolean; |
769 |
+ |
begin |
770 |
+ |
Result := (FJournalFileStream <> nil) and not FDoNotJournal; |
771 |
+ |
end; |
772 |
+ |
|
773 |
+ |
function TFBJournaling.GetJournalOptions: TJournalOptions; |
774 |
+ |
begin |
775 |
+ |
Result := FOptions; |
776 |
+ |
end; |
777 |
+ |
|
778 |
+ |
function TFBJournaling.StartJournaling(aJournalLogFile: AnsiString): integer; |
779 |
+ |
begin |
780 |
+ |
Result := StartJournaling(aJournalLogFile,[joReadWriteTransactions,joModifyQueries]); |
781 |
+ |
end; |
782 |
+ |
|
783 |
+ |
function TFBJournaling.StartJournaling(aJournalLogFile: AnsiString; |
784 |
+ |
Options: TJournalOptions): integer; |
785 |
+ |
begin |
786 |
+ |
try |
787 |
+ |
StartJournaling(TFileStream.Create(aJournalLogFile,fmCreate),Options); |
788 |
+ |
finally |
789 |
+ |
FJournalFilePath := aJournalLogFile; |
790 |
+ |
end; |
791 |
+ |
end; |
792 |
+ |
|
793 |
+ |
function TFBJournaling.StartJournaling(S: TStream; Options: TJournalOptions |
794 |
+ |
): integer; |
795 |
+ |
begin |
796 |
+ |
FOptions := Options; |
797 |
+ |
if not (joNoServerTable in FOptions) then |
798 |
+ |
with GetAttachment do |
799 |
+ |
begin |
800 |
+ |
if not HasTable(sJournalTableName) then |
801 |
+ |
begin |
802 |
+ |
ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateJournalTable); |
803 |
+ |
ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateSequence); |
804 |
+ |
end; |
805 |
+ |
FSessionID := OpenCursorAtStart(sqlGetNextSessionID)[0].AsInteger; |
806 |
+ |
end; |
807 |
+ |
FJournalFileStream := S; |
808 |
+ |
Result := FSessionID; |
809 |
+ |
end; |
810 |
+ |
|
811 |
+ |
procedure TFBJournaling.StopJournaling(RetainJournal: boolean); |
812 |
+ |
begin |
813 |
+ |
EndSession(RetainJournal); |
814 |
+ |
end; |
815 |
|
|
816 |
|
{ TFBAttachment } |
817 |
|
|
818 |
< |
procedure TFBAttachment.GetODSAndConnectionInfo; |
819 |
< |
var DBInfo: IDBInformation; |
237 |
< |
i: integer; |
238 |
< |
Stmt: IStatement; |
818 |
> |
procedure TFBAttachment.NeedConnectionInfo; |
819 |
> |
var Stmt: IStatement; |
820 |
|
ResultSet: IResultSet; |
821 |
|
Param: IDPBItem; |
822 |
|
begin |
823 |
< |
if not IsConnected then Exit; |
824 |
< |
DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version, |
244 |
< |
isc_info_db_SQL_Dialect]); |
245 |
< |
for i := 0 to DBInfo.GetCount - 1 do |
246 |
< |
with DBInfo[i] do |
247 |
< |
case getItemType of |
248 |
< |
isc_info_ods_minor_version: |
249 |
< |
FODSMinorVersion := getAsInteger; |
250 |
< |
isc_info_ods_version: |
251 |
< |
FODSMajorVersion := getAsInteger; |
252 |
< |
isc_info_db_SQL_Dialect: |
253 |
< |
FSQLDialect := getAsInteger; |
254 |
< |
end; |
255 |
< |
|
823 |
> |
if not IsConnected or FHasConnectionInfo then Exit; |
824 |
> |
NeedDBInfo; |
825 |
|
FCharSetID := 0; |
826 |
|
FRemoteProtocol := ''; |
827 |
|
FAuthMethod := 'Legacy_Auth'; |
830 |
|
begin |
831 |
|
Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit), |
832 |
|
'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL, MON$AUTH_METHOD, MON$SEC_DATABASE From MON$ATTACHMENTS, MON$DATABASE '+ |
833 |
< |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION'); |
833 |
> |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION '); |
834 |
|
ResultSet := Stmt.OpenCursor; |
835 |
|
if ResultSet.FetchNext then |
836 |
|
begin |
867 |
|
end; |
868 |
|
end; |
869 |
|
FHasDefaultCharSet := CharSetID2CodePage(FCharSetID,FCodePage) and (FCharSetID > 1); |
870 |
+ |
FHasConnectionInfo := true; |
871 |
+ |
end; |
872 |
+ |
|
873 |
+ |
procedure TFBAttachment.NeedDBInfo; |
874 |
+ |
var DBInfo: IDBInformation; |
875 |
+ |
i: integer; |
876 |
+ |
begin |
877 |
+ |
if not IsConnected or (FAttachmentID > 0) then Exit; |
878 |
+ |
DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version, |
879 |
+ |
isc_info_db_SQL_Dialect, isc_info_attachment_id]); |
880 |
+ |
for i := 0 to DBInfo.GetCount - 1 do |
881 |
+ |
with DBInfo[i] do |
882 |
+ |
case getItemType of |
883 |
+ |
isc_info_ods_minor_version: |
884 |
+ |
FODSMinorVersion := getAsInteger; |
885 |
+ |
isc_info_ods_version: |
886 |
+ |
FODSMajorVersion := getAsInteger; |
887 |
+ |
isc_info_db_SQL_Dialect: |
888 |
+ |
FSQLDialect := getAsInteger; |
889 |
+ |
isc_info_attachment_id: |
890 |
+ |
FAttachmentID := getAsInteger; |
891 |
+ |
end; |
892 |
|
end; |
893 |
|
|
894 |
|
constructor TFBAttachment.Create(api: TFBClientAPI; DatabaseName: AnsiString; |
898 |
|
FFirebirdAPI := api.GetAPI; {Keep reference to interface} |
899 |
|
FSQLDialect := 3; |
900 |
|
FDatabaseName := DatabaseName; |
310 |
– |
FDPB := DPB; |
901 |
|
SetLength(FUserCharSetMap,0); |
902 |
+ |
ClearCachedInfo; |
903 |
+ |
FInlineBlobLimit := DefaultMaxInlineBlobLimit; |
904 |
+ |
FDPB := DPB; |
905 |
|
FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError; |
906 |
+ |
end; |
907 |
+ |
|
908 |
+ |
procedure TFBAttachment.ClearCachedInfo; |
909 |
+ |
begin |
910 |
+ |
FHasDefaultCharSet := false; |
911 |
+ |
FAttachmentID := 0; |
912 |
|
FODSMajorVersion := 0; |
913 |
|
FODSMinorVersion := 0; |
914 |
+ |
FCodePage := CP_NONE; |
915 |
+ |
FCharSetID := 0; |
916 |
+ |
FRemoteProtocol := ''; |
917 |
+ |
FAuthMethod := ''; |
918 |
+ |
FSecDatabase := ''; |
919 |
+ |
FHasConnectionInfo := false; |
920 |
|
end; |
921 |
|
|
922 |
|
function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString; |
1050 |
|
end; |
1051 |
|
end; |
1052 |
|
|
1053 |
+ |
procedure TFBAttachment.SetSQLDialect(aValue: integer); |
1054 |
+ |
begin |
1055 |
+ |
FSQLDialect := aValue; |
1056 |
+ |
end; |
1057 |
+ |
|
1058 |
+ |
procedure TFBAttachment.UseServerICUChanged; |
1059 |
+ |
begin |
1060 |
+ |
// Do nothing by default |
1061 |
+ |
end; |
1062 |
+ |
|
1063 |
|
destructor TFBAttachment.Destroy; |
1064 |
|
begin |
1065 |
|
Disconnect(true); |
1066 |
|
inherited Destroy; |
1067 |
|
end; |
1068 |
|
|
1069 |
+ |
procedure TFBAttachment.Disconnect(Force: boolean); |
1070 |
+ |
begin |
1071 |
+ |
inherited Disconnect(Force); |
1072 |
+ |
ClearCachedInfo; |
1073 |
+ |
end; |
1074 |
+ |
|
1075 |
|
function TFBAttachment.getFirebirdAPI: IFirebirdAPI; |
1076 |
|
begin |
1077 |
|
Result := FFirebirdAPI; |
1094 |
|
|
1095 |
|
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString; |
1096 |
|
aSQLDialect: integer); |
1097 |
+ |
var tr: ITransaction; |
1098 |
|
begin |
1099 |
< |
ExecImmediate(StartTransaction(TPB,taCommit),sql,aSQLDialect); |
1099 |
> |
tr := StartTransaction(TPB,taCommit); |
1100 |
> |
try |
1101 |
> |
ExecImmediate(tr,sql,aSQLDialect); |
1102 |
> |
tr.Commit; |
1103 |
> |
except |
1104 |
> |
tr.Rollback(true); |
1105 |
> |
raise; |
1106 |
> |
end; |
1107 |
|
end; |
1108 |
|
|
1109 |
|
procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: AnsiString); |
1113 |
|
|
1114 |
|
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString); |
1115 |
|
begin |
1116 |
< |
ExecImmediate(StartTransaction(TPB,taCommit),sql,FSQLDialect); |
1116 |
> |
ExecImmediate(TPB,sql,FSQLDialect); |
1117 |
|
end; |
1118 |
|
|
1119 |
|
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString; |
1120 |
|
SQLDialect: integer; params: array of const): IResults; |
1121 |
+ |
var tr: ITransaction; |
1122 |
|
begin |
1123 |
< |
Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,SQLDialect,params); |
1123 |
> |
tr := StartTransaction(TPB,taCommit); |
1124 |
> |
try |
1125 |
> |
Result := ExecuteSQL(tr,sql,SQLDialect,params); |
1126 |
> |
tr.CommitRetaining; |
1127 |
> |
except |
1128 |
> |
tr.Rollback(true); |
1129 |
> |
raise; |
1130 |
> |
end; |
1131 |
|
end; |
1132 |
|
|
1133 |
|
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString; |
1143 |
|
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString; |
1144 |
|
params: array of const): IResults; |
1145 |
|
begin |
1146 |
< |
Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,params); |
1146 |
> |
Result := ExecuteSQL(TPB,sql,FSQLDialect,params); |
1147 |
|
end; |
1148 |
|
|
1149 |
|
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString; |
1150 |
|
params: array of const): IResults; |
1151 |
|
begin |
1152 |
< |
with Prepare(transaction,sql,FSQLDialect) do |
516 |
< |
begin |
517 |
< |
SetParameters(SQLParams,params); |
518 |
< |
Result := Execute; |
519 |
< |
end; |
1152 |
> |
Result := ExecuteSQL(transaction,sql,FSQLDialect,params); |
1153 |
|
end; |
1154 |
|
|
1155 |
|
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
1156 |
< |
aSQLDialect: integer): IResultSet; |
1156 |
> |
aSQLDialect: integer; Scrollable: boolean): IResultSet; |
1157 |
|
begin |
1158 |
< |
Result := OpenCursor(transaction,sql,aSQLDialect,[]); |
1158 |
> |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,[]); |
1159 |
|
end; |
1160 |
|
|
1161 |
|
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
1162 |
|
aSQLDialect: integer; params: array of const): IResultSet; |
1163 |
< |
var Statement: IStatement; |
1163 |
> |
|
1164 |
|
begin |
1165 |
< |
CheckHandle; |
533 |
< |
Statement := Prepare(transaction,sql,aSQLDialect); |
534 |
< |
SetParameters(Statement.SQLParams,params); |
535 |
< |
Result := Statement.OpenCursor; |
1165 |
> |
Result := OpenCursor(transaction,sql,FSQLDialect,false,params); |
1166 |
|
end; |
1167 |
|
|
1168 |
< |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString |
1169 |
< |
): IResultSet; |
1168 |
> |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
1169 |
> |
Scrollable: boolean): IResultSet; |
1170 |
|
begin |
1171 |
< |
Result := OpenCursor(transaction,sql,FSQLDialect,[]); |
1171 |
> |
Result := OpenCursor(transaction,sql,FSQLDialect,Scrollable,[]); |
1172 |
|
end; |
1173 |
|
|
1174 |
|
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
1175 |
|
params: array of const): IResultSet; |
1176 |
|
begin |
1177 |
< |
Result := OpenCursor(transaction,sql,FSQLDialect,params); |
1177 |
> |
Result := OpenCursor(transaction,sql,FSQLDialect,false,params); |
1178 |
> |
end; |
1179 |
> |
|
1180 |
> |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
1181 |
> |
Scrollable: boolean; params: array of const): IResultSet; |
1182 |
> |
begin |
1183 |
> |
Result := OpenCursor(transaction,sql,FSQLDialect,Scrollable,params); |
1184 |
> |
end; |
1185 |
> |
|
1186 |
> |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
1187 |
> |
aSQLDialect: integer; Scrollable: boolean; |
1188 |
> |
params: array of const): IResultSet; |
1189 |
> |
var Statement: IStatement; |
1190 |
> |
begin |
1191 |
> |
CheckHandle; |
1192 |
> |
Statement := Prepare(transaction,sql,aSQLDialect); |
1193 |
> |
SetParameters(Statement.SQLParams,params); |
1194 |
> |
Result := Statement.OpenCursor(Scrollable); |
1195 |
|
end; |
1196 |
|
|
1197 |
|
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
1198 |
< |
sql: AnsiString; aSQLDialect: integer): IResultSet; |
1198 |
> |
sql: AnsiString; aSQLDialect: integer; Scrollable: boolean): IResultSet; |
1199 |
|
begin |
1200 |
< |
Result := OpenCursor(transaction,sql,aSQLDialect,[]); |
1200 |
> |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,[]); |
1201 |
|
Result.FetchNext; |
1202 |
|
end; |
1203 |
|
|
1208 |
|
Result.FetchNext; |
1209 |
|
end; |
1210 |
|
|
1211 |
< |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; sql: AnsiString |
1212 |
< |
): IResultSet; |
1211 |
> |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
1212 |
> |
sql: AnsiString; aSQLDialect: integer; Scrollable: boolean; |
1213 |
> |
params: array of const): IResultSet; |
1214 |
|
begin |
1215 |
< |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,[]); |
1215 |
> |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,params); |
1216 |
> |
Result.FetchNext; |
1217 |
> |
end; |
1218 |
> |
|
1219 |
> |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
1220 |
> |
sql: AnsiString; Scrollable: boolean): IResultSet; |
1221 |
> |
begin |
1222 |
> |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,Scrollable,[]); |
1223 |
|
end; |
1224 |
|
|
1225 |
|
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
1228 |
|
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,params); |
1229 |
|
end; |
1230 |
|
|
1231 |
< |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString): IResultSet; |
1231 |
> |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
1232 |
> |
sql: AnsiString; Scrollable: boolean; params: array of const): IResultSet; |
1233 |
|
begin |
1234 |
< |
Result := OpenCursorAtStart(sql,[]); |
1234 |
> |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,Scrollable,params); |
1235 |
> |
end; |
1236 |
> |
|
1237 |
> |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; Scrollable: boolean |
1238 |
> |
): IResultSet; |
1239 |
> |
begin |
1240 |
> |
Result := OpenCursorAtStart(sql,Scrollable,[]); |
1241 |
> |
end; |
1242 |
> |
|
1243 |
> |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; Scrollable: boolean; |
1244 |
> |
params: array of const): IResultSet; |
1245 |
> |
var tr: ITransaction; |
1246 |
> |
begin |
1247 |
> |
tr := StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit); |
1248 |
> |
try |
1249 |
> |
Result := OpenCursorAtStart(tr,sql,FSQLDialect,Scrollable,params); |
1250 |
> |
tr.CommitRetaining; |
1251 |
> |
except |
1252 |
> |
tr.Rollback(true); |
1253 |
> |
raise; |
1254 |
> |
end; |
1255 |
|
end; |
1256 |
|
|
1257 |
|
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; |
1258 |
|
params: array of const): IResultSet; |
1259 |
|
begin |
1260 |
< |
Result := OpenCursorAtStart(StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit),sql,FSQLDialect,params); |
1260 |
> |
Result := OpenCursorAtStart(sql,false,params); |
1261 |
|
end; |
1262 |
|
|
1263 |
< |
function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString |
1264 |
< |
): IStatement; |
1263 |
> |
function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString; |
1264 |
> |
CursorName: AnsiString): IStatement; |
1265 |
|
begin |
1266 |
< |
Result := Prepare(transaction,sql,FSQLDialect); |
1266 |
> |
Result := Prepare(transaction,sql,FSQLDialect,CursorName); |
1267 |
|
end; |
1268 |
|
|
1269 |
|
function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction; |
1270 |
< |
sql: AnsiString; GenerateParamNames: boolean): IStatement; |
1270 |
> |
sql: AnsiString; GenerateParamNames: boolean; CaseSensitiveParams: boolean; |
1271 |
> |
CursorName: AnsiString): IStatement; |
1272 |
|
begin |
1273 |
< |
Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames); |
1273 |
> |
Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames,CaseSensitiveParams,CursorName); |
1274 |
|
end; |
1275 |
|
|
1276 |
|
function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents; |
1287 |
|
|
1288 |
|
function TFBAttachment.GetSQLDialect: integer; |
1289 |
|
begin |
1290 |
+ |
NeedDBInfo; |
1291 |
|
Result := FSQLDialect; |
1292 |
|
end; |
1293 |
|
|
1294 |
+ |
function TFBAttachment.GetAttachmentID: integer; |
1295 |
+ |
begin |
1296 |
+ |
NeedDBInfo; |
1297 |
+ |
Result := FAttachmentID; |
1298 |
+ |
end; |
1299 |
+ |
|
1300 |
+ |
function TFBAttachment.CreateBlob(transaction: ITransaction; RelationName, |
1301 |
+ |
ColumnName: AnsiString; BPB: IBPB): IBlob; |
1302 |
+ |
begin |
1303 |
+ |
Result := CreateBlob(transaction,GetBlobMetaData(Transaction,RelationName,ColumnName),BPB); |
1304 |
+ |
end; |
1305 |
+ |
|
1306 |
+ |
function TFBAttachment.OpenBlob(transaction: ITransaction; RelationName, |
1307 |
+ |
ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob; |
1308 |
+ |
begin |
1309 |
+ |
Result := OpenBlob(Transaction, |
1310 |
+ |
GetBlobMetaData(Transaction,RelationName,ColumnName), |
1311 |
+ |
BlobID,BPB); |
1312 |
+ |
end; |
1313 |
+ |
|
1314 |
|
function TFBAttachment.OpenBlob(transaction: ITransaction; Field: ISQLData; |
1315 |
|
BPB: IBPB): IBlob; |
1316 |
|
begin |
1317 |
|
Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB); |
1318 |
|
end; |
1319 |
|
|
1320 |
+ |
function TFBAttachment.CreateArray(transaction: ITransaction; RelationName, |
1321 |
+ |
ColumnName: AnsiString): IArray; |
1322 |
+ |
begin |
1323 |
+ |
Result := CreateArray(transaction,GetArrayMetaData(transaction,RelationName,ColumnName)); |
1324 |
+ |
end; |
1325 |
+ |
|
1326 |
+ |
function TFBAttachment.OpenArray(transaction: ITransaction; RelationName, |
1327 |
+ |
ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray; |
1328 |
+ |
begin |
1329 |
+ |
Result := OpenArray(transaction, |
1330 |
+ |
GetArrayMetaData(transaction,RelationName,ColumnName),ArrayID); |
1331 |
+ |
end; |
1332 |
+ |
|
1333 |
|
function TFBAttachment.GetDBInformation(Requests: array of byte |
1334 |
|
): IDBInformation; |
1335 |
|
var ReqBuffer: PByte; |
1373 |
|
|
1374 |
|
function TFBAttachment.GetRemoteProtocol: AnsiString; |
1375 |
|
begin |
1376 |
+ |
NeedConnectionInfo; |
1377 |
|
Result := FRemoteProtocol; |
1378 |
|
end; |
1379 |
|
|
1380 |
|
function TFBAttachment.GetAuthenticationMethod: AnsiString; |
1381 |
|
begin |
1382 |
+ |
NeedConnectionInfo; |
1383 |
|
Result := FAuthMethod; |
1384 |
|
end; |
1385 |
|
|
1386 |
|
function TFBAttachment.GetSecurityDatabase: AnsiString; |
1387 |
|
begin |
1388 |
+ |
NeedConnectionInfo; |
1389 |
|
Result := FSecDatabase; |
1390 |
|
end; |
1391 |
|
|
1392 |
|
function TFBAttachment.GetODSMajorVersion: integer; |
1393 |
|
begin |
1394 |
+ |
NeedDBInfo; |
1395 |
|
Result := FODSMajorVersion; |
1396 |
|
end; |
1397 |
|
|
1398 |
|
function TFBAttachment.GetODSMinorVersion: integer; |
1399 |
|
begin |
1400 |
+ |
NeedDBInfo; |
1401 |
|
Result := FODSMinorVersion; |
1402 |
|
end; |
1403 |
|
|
1404 |
+ |
function TFBAttachment.GetCharSetID: integer; |
1405 |
+ |
begin |
1406 |
+ |
NeedConnectionInfo; |
1407 |
+ |
Result := FCharSetID; |
1408 |
+ |
end; |
1409 |
+ |
|
1410 |
+ |
function TFBAttachment.HasDecFloatSupport: boolean; |
1411 |
+ |
begin |
1412 |
+ |
Result := false; |
1413 |
+ |
end; |
1414 |
+ |
|
1415 |
+ |
function TFBAttachment.GetInlineBlobLimit: integer; |
1416 |
+ |
begin |
1417 |
+ |
Result := FInlineBlobLimit; |
1418 |
+ |
end; |
1419 |
+ |
|
1420 |
+ |
procedure TFBAttachment.SetInlineBlobLimit(limit: integer); |
1421 |
+ |
begin |
1422 |
+ |
if limit > 32*1024 then |
1423 |
+ |
FInlineBlobLimit := 32*1024 |
1424 |
+ |
else |
1425 |
+ |
FInlineBlobLimit := limit; |
1426 |
+ |
end; |
1427 |
+ |
|
1428 |
+ |
function TFBAttachment.HasBatchMode: boolean; |
1429 |
+ |
begin |
1430 |
+ |
Result := false; |
1431 |
+ |
end; |
1432 |
+ |
|
1433 |
+ |
function TFBAttachment.HasTable(aTableName: AnsiString): boolean; |
1434 |
+ |
begin |
1435 |
+ |
Result := OpenCursorAtStart( |
1436 |
+ |
'Select count(*) From RDB$RELATIONS Where RDB$RELATION_NAME = ?', |
1437 |
+ |
[aTableName])[0].AsInteger > 0; |
1438 |
+ |
end; |
1439 |
+ |
|
1440 |
+ |
function TFBAttachment.HasFunction(aFunctionName: AnsiString): boolean; |
1441 |
+ |
begin |
1442 |
+ |
Result := OpenCursorAtStart( |
1443 |
+ |
'Select count(*) From RDB$FUNCTIONS Where RDB$FUNCTION_NAME = ?', |
1444 |
+ |
[aFunctionName])[0].AsInteger > 0; |
1445 |
+ |
end; |
1446 |
+ |
|
1447 |
+ |
function TFBAttachment.HasProcedure(aProcName: AnsiString): boolean; |
1448 |
+ |
begin |
1449 |
+ |
Result := OpenCursorAtStart( |
1450 |
+ |
'Select count(*) From RDB$PROCEDURES Where RDB$PROCEDURE_NAME = ?', |
1451 |
+ |
[aProcName])[0].AsInteger > 0; |
1452 |
+ |
end; |
1453 |
+ |
|
1454 |
|
function TFBAttachment.HasDefaultCharSet: boolean; |
1455 |
|
begin |
1456 |
+ |
NeedConnectionInfo; |
1457 |
|
Result := FHasDefaultCharSet |
1458 |
|
end; |
1459 |
|
|
1460 |
|
function TFBAttachment.GetDefaultCharSetID: integer; |
1461 |
|
begin |
1462 |
+ |
NeedConnectionInfo; |
1463 |
|
Result := FCharsetID; |
1464 |
|
end; |
1465 |
|
|
1597 |
|
CharSetID := CharSets[0].AsInteger; |
1598 |
|
end; |
1599 |
|
|
1600 |
+ |
function TFBAttachment.GetTimeZoneServices: ITimeZoneServices; |
1601 |
+ |
begin |
1602 |
+ |
IBError(ibxeNotSupported,[]); |
1603 |
+ |
end; |
1604 |
+ |
|
1605 |
+ |
function TFBAttachment.HasTimeZoneSupport: boolean; |
1606 |
+ |
begin |
1607 |
+ |
Result := false; |
1608 |
+ |
end; |
1609 |
+ |
|
1610 |
+ |
{ TDPBItem } |
1611 |
+ |
|
1612 |
+ |
function TDPBItem.getParamTypeName: AnsiString; |
1613 |
+ |
begin |
1614 |
+ |
Result := DPBPrefix + DPBConstantNames[getParamType]; |
1615 |
+ |
end; |
1616 |
+ |
|
1617 |
+ |
{ TDPB } |
1618 |
+ |
|
1619 |
+ |
constructor TDPB.Create(api: TFBClientAPI); |
1620 |
+ |
begin |
1621 |
+ |
inherited Create(api); |
1622 |
+ |
FDataLength := 1; |
1623 |
+ |
FBuffer^ := isc_dpb_version1; |
1624 |
+ |
end; |
1625 |
+ |
|
1626 |
+ |
function TDPB.GetParamTypeName(ParamType: byte): Ansistring; |
1627 |
+ |
begin |
1628 |
+ |
if ParamType <= isc_dpb_last_dpb_constant then |
1629 |
+ |
Result := DPBConstantNames[ParamType] |
1630 |
+ |
else |
1631 |
+ |
Result := ''; |
1632 |
+ |
end; |
1633 |
+ |
|
1634 |
+ |
{$IFNDEF FPC} |
1635 |
+ |
function TDPB.GetDPBParamTypeName(ParamType: byte): Ansistring; |
1636 |
+ |
begin |
1637 |
+ |
Result := GetParamTypeName(ParamType); |
1638 |
+ |
end; |
1639 |
+ |
{$ENDIF} |
1640 |
+ |
|
1641 |
+ |
function TDPB.LookupItemType(ParamTypeName: AnsiString): byte; |
1642 |
+ |
var i: byte; |
1643 |
+ |
begin |
1644 |
+ |
Result := 0; |
1645 |
+ |
ParamTypeName := LowerCase(ParamTypeName); |
1646 |
+ |
if (Pos(DPBPrefix, ParamTypeName) = 1) then |
1647 |
+ |
Delete(ParamTypeName, 1, Length(DPBPrefix)); |
1648 |
+ |
|
1649 |
+ |
for i := 1 to isc_dpb_last_dpb_constant do |
1650 |
+ |
if (ParamTypeName = DPBConstantNames[i]) then |
1651 |
+ |
begin |
1652 |
+ |
Result := i; |
1653 |
+ |
break; |
1654 |
+ |
end; |
1655 |
+ |
end; |
1656 |
+ |
|
1657 |
|
end. |
1658 |
|
|