1 |
(*
|
2 |
* IBX For Lazarus (Firebird Express)
|
3 |
*
|
4 |
* The contents of this file are subject to the Initial Developer's
|
5 |
* Public License Version 1.0 (the "License"); you may not use this
|
6 |
* file except in compliance with the License. You may obtain a copy
|
7 |
* of the License here:
|
8 |
*
|
9 |
* http://www.firebirdsql.org/index.php?op=doc&id=idpl
|
10 |
*
|
11 |
* Software distributed under the License is distributed on an "AS
|
12 |
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
|
13 |
* implied. See the License for the specific language governing rights
|
14 |
* and limitations under the License.
|
15 |
*
|
16 |
* The Initial Developer of the Original Code is Tony Whyman.
|
17 |
*
|
18 |
* The Original Code is (C) 2014-2017 Tony Whyman, MWA Software
|
19 |
* (http://www.mwasoftware.co.uk).
|
20 |
*
|
21 |
* All Rights Reserved.
|
22 |
*
|
23 |
* Contributor(s): ______________________________________.
|
24 |
*
|
25 |
*)
|
26 |
unit ibxscript;
|
27 |
|
28 |
{$mode objfpc}{$H+}
|
29 |
|
30 |
{$codepage UTF8}
|
31 |
|
32 |
interface
|
33 |
|
34 |
uses Classes, IBDatabase, IBSQL, IB, IBDataOutput;
|
35 |
|
36 |
const
|
37 |
ibx_blob = 'IBX_BLOB';
|
38 |
ibx_array = 'IBX_ARRAY';
|
39 |
|
40 |
BlobLineLength = 40;
|
41 |
|
42 |
{Non-character symbols}
|
43 |
sqNone = #0;
|
44 |
sqEnd = #1;
|
45 |
sqBegin = #2;
|
46 |
sqString = #3;
|
47 |
sqComment = #4;
|
48 |
sqCase = #5;
|
49 |
sqDeclare = #6;
|
50 |
sqCommentLine = #7;
|
51 |
sqEOL = #8;
|
52 |
sqTab = #9;
|
53 |
sqTerminator = #10;
|
54 |
sqEOF = #11;
|
55 |
sqTag = #12;
|
56 |
sqEndTag = #13;
|
57 |
sqQuotedString = #14;
|
58 |
sqDoubleQuotedString = #15;
|
59 |
|
60 |
type
|
61 |
TSQLSymbol = char;
|
62 |
|
63 |
TSQLStates = (stInit, stError, stInSQL, stNested, stInDeclaration);
|
64 |
|
65 |
TXMLStates = (stInTag,stAttribute,stAttributeValue,stQuotedAttributeValue,
|
66 |
stTagged,stEndTag);
|
67 |
|
68 |
TXMLTag = (xtNone,xtBlob,xtArray,xtElt);
|
69 |
|
70 |
TOnNextLine = procedure(Sender: TObject; Line: string) of object;
|
71 |
TOnProgressEvent = procedure (Sender: TObject; Reset: boolean; value: integer) of object;
|
72 |
|
73 |
TXMLTagDef = record
|
74 |
XMLTag: TXMLTag;
|
75 |
TagValue: string;
|
76 |
end;
|
77 |
|
78 |
const
|
79 |
XMLTagDefs: array [0..2] of TXMLTagDef = (
|
80 |
(XMLTag: xtBlob; TagValue: 'blob'),
|
81 |
(XMLTag: xtArray; TagValue: 'array'),
|
82 |
(XMLTag: xtElt; TagValue: 'elt')
|
83 |
);
|
84 |
|
85 |
type
|
86 |
|
87 |
{ TSymbolStream }
|
88 |
|
89 |
{A simple lookahead one parser to process a text stream as a stream of symbols.
|
90 |
This is an abstract object, subclassed for different sources.}
|
91 |
|
92 |
TSymbolStream = class
|
93 |
private
|
94 |
FNextSymbol: TSQLSymbol;
|
95 |
FOnNextLine: TOnNextLine;
|
96 |
FOnProgressEvent: TOnProgressEvent;
|
97 |
FTerminator: char;
|
98 |
FLastChar: char;
|
99 |
FIndex: integer;
|
100 |
FLine: string;
|
101 |
FString: string;
|
102 |
FXMLTag: TXMLTag;
|
103 |
FXMLMode: integer;
|
104 |
protected
|
105 |
FNextStatement: boolean;
|
106 |
function GetErrorPrefix: string; virtual; abstract;
|
107 |
function GetNextSymbol(C: char): TSQLSymbol;
|
108 |
function FindTag(tag: string; var xmlTag: TXMLTag): boolean;
|
109 |
function GetNextLine(var Line: string):boolean; virtual; abstract;
|
110 |
public
|
111 |
constructor Create;
|
112 |
procedure ShowError(msg: string; params: array of const);
|
113 |
function GetSymbol: TSQLSymbol; virtual;
|
114 |
procedure NextStatement;
|
115 |
property SymbolValue: string read FString;
|
116 |
property Terminator: char read FTerminator write FTerminator;
|
117 |
property XMLTag: TXMLTag read FXMLTag;
|
118 |
property OnNextLine: TOnNextLine read FOnNextLine write FOnNextLine;
|
119 |
property OnProgressEvent: TOnProgressEvent read FOnProgressEvent write FOnProgressEvent; {Progress Bar Support}
|
120 |
end;
|
121 |
|
122 |
{ TBatchSymbolStream }
|
123 |
|
124 |
{This symbol stream supports non-interactive parsing of a text file, stream or
|
125 |
lines of text.}
|
126 |
|
127 |
TBatchSymbolStream = class(TSymbolStream)
|
128 |
private
|
129 |
FLines: TStrings;
|
130 |
FLineIndex: integer;
|
131 |
protected
|
132 |
function GetErrorPrefix: string; override;
|
133 |
function GetNextLine(var Line: string):boolean; override;
|
134 |
public
|
135 |
constructor Create;
|
136 |
destructor Destroy; override;
|
137 |
procedure SetStreamSource(Lines: TStrings); overload;
|
138 |
procedure SetStreamSource(S: TStream); overload;
|
139 |
procedure SetStreamSource(FileName: string); overload;
|
140 |
end;
|
141 |
|
142 |
{ TInteractiveSymbolStream }
|
143 |
|
144 |
{This symbol stream supports interactive parsing of commands and
|
145 |
SQL statements entered at a console}
|
146 |
|
147 |
TInteractiveSymbolStream = class(TSymbolStream)
|
148 |
private
|
149 |
FPrompt: string;
|
150 |
FContinuePrompt: string;
|
151 |
FTerminated: boolean;
|
152 |
protected
|
153 |
function GetErrorPrefix: string; override;
|
154 |
function GetNextLine(var Line: string):boolean; override;
|
155 |
public
|
156 |
constructor Create(aPrompt: string='SQL>'; aContinue: string = 'CON>');
|
157 |
function GetSymbol: TSQLSymbol; override;
|
158 |
property Terminated: boolean read FTerminated write FTerminated;
|
159 |
end;
|
160 |
|
161 |
TBlobData = record
|
162 |
BlobIntf: IBlob;
|
163 |
SubType: cardinal;
|
164 |
end;
|
165 |
|
166 |
TArrayData = record
|
167 |
ArrayIntf: IArray;
|
168 |
SQLType: cardinal;
|
169 |
relationName: string;
|
170 |
columnName: string;
|
171 |
dim: cardinal;
|
172 |
Size: cardinal;
|
173 |
Scale: integer;
|
174 |
CharSet: string;
|
175 |
bounds: TArrayBounds;
|
176 |
CurrentRow: integer;
|
177 |
Index: array of integer;
|
178 |
end;
|
179 |
|
180 |
{ TIBXMLProcessor }
|
181 |
|
182 |
{This is a simple XML parser that parses the output of a symbol stream as XML
|
183 |
structured data, recognising tags, attributes and data. The tags are given in
|
184 |
the table XMLTagDefs. The BlobData and ArrayData properties return blob and
|
185 |
array data decoded from the XML stream.}
|
186 |
|
187 |
TIBXMLProcessor = class
|
188 |
private
|
189 |
FDatabase: TIBDatabase;
|
190 |
FSymbolStream: TSymbolStream;
|
191 |
FState: TXMLStates;
|
192 |
FTransaction: TIBTransaction;
|
193 |
FXMLTagStack: array [1..20] of TXMLTag;
|
194 |
FXMLTagIndex: integer;
|
195 |
FAttributeName: string;
|
196 |
FBlobData: array of TBlobData;
|
197 |
FCurrentBlob: integer;
|
198 |
FArrayData: array of TArrayData;
|
199 |
FCurrentArray: integer;
|
200 |
FBlobBuffer: PChar;
|
201 |
procedure EndXMLTag(xmltag: TXMLTag);
|
202 |
procedure EnterTag;
|
203 |
function GetArrayData(index: integer): TArrayData;
|
204 |
function GetArrayDataCount: integer;
|
205 |
function GetBlobData(index: integer): TBlobData;
|
206 |
function GetBlobDataCount: integer;
|
207 |
procedure ProcessTagValue(tagValue: string);
|
208 |
procedure StartXMLTag(xmltag: TXMLTag);
|
209 |
procedure ProcessAttributeValue(attrValue: string);
|
210 |
procedure ProcessBoundsList(boundsList: string);
|
211 |
public
|
212 |
constructor Create;
|
213 |
destructor Destroy; override;
|
214 |
function AnalyseXML(SymbolStream: TSymbolStream): string;
|
215 |
procedure NextStatement;
|
216 |
class function FormatBlob(Field: ISQLData): string;
|
217 |
class function FormatArray(Database: TIBDatabase; ar: IArray): string;
|
218 |
property BlobData[index: integer]: TBlobData read GetBlobData;
|
219 |
property BlobDataCount: integer read GetBlobDataCount;
|
220 |
property ArrayData[index: integer]: TArrayData read GetArrayData;
|
221 |
property ArrayDataCount: integer read GetArrayDataCount;
|
222 |
property Database: TIBDatabase read FDatabase write FDatabase;
|
223 |
property Transaction: TIBTransaction read FTransaction write FTransaction;
|
224 |
end;
|
225 |
|
226 |
{ TIBSQLProcessor }
|
227 |
|
228 |
{This parses a symbol stream into SQL statements. If embedded XML is found then
|
229 |
this is processed by the supplied XMLProcessor. The HasBegin property provides
|
230 |
a simple way to recognised stored procedure DDL, and "Execute As" statements.}
|
231 |
|
232 |
TIBSQLProcessor = class
|
233 |
private
|
234 |
FSQLText: string;
|
235 |
FState: TSQLStates;
|
236 |
FStack: array [0..16] of TSQLStates;
|
237 |
FStackindex: integer;
|
238 |
FHasBegin: boolean;
|
239 |
FInCase: boolean;
|
240 |
FNested: integer;
|
241 |
FXMLProcessor: TIBXMLProcessor;
|
242 |
FSymbolStream: TSymbolStream;
|
243 |
procedure AddToSQL(const Symbol: string);
|
244 |
procedure SetState(AState: TSQLStates);
|
245 |
function PopState: TSQLStates;
|
246 |
public
|
247 |
constructor Create(XMLProcessor: TIBXMLProcessor);
|
248 |
function GetNextStatement(SymbolStream: TSymbolStream; var stmt: string) : boolean;
|
249 |
property HasBegin: boolean read FHasBegin;
|
250 |
end;
|
251 |
|
252 |
TGetParamValue = procedure(Sender: TObject; ParamName: string; var BlobID: TISC_QUAD) of object;
|
253 |
TLogEvent = procedure(Sender: TObject; Msg: string) of Object;
|
254 |
TOnSelectSQL = procedure (Sender: TObject; SQLText: string) of object;
|
255 |
TOnSetStatement = procedure(Sender: TObject; command, aValue, stmt: string; var Done: boolean) of object;
|
256 |
TOnCreateDatabase = procedure (Sender: TObject; var DatabaseFileName: string) of object;
|
257 |
|
258 |
{ TCustomIBXScript }
|
259 |
|
260 |
{This is the main script processing engine and can be customised by subclassing
|
261 |
and defining the symbol stream appropriate for use.
|
262 |
|
263 |
The RunScript function is used to invoke the processing of a symbol stream. Each
|
264 |
SQL statement is extracted one by one. If it is recognised as a built in command
|
265 |
by "ProcessStatement" then it is actioned directly. Otherwise, it is executed
|
266 |
using the TIBSQL component. Note that SQL validation by this class is only partial
|
267 |
and is sufficient only to parse the SQL into statements. The Firebird engine does
|
268 |
the rest when the statement is executed.}
|
269 |
|
270 |
TCustomIBXScript = class(TComponent)
|
271 |
private
|
272 |
FEcho: boolean;
|
273 |
FIBXMLProcessor: TIBXMLProcessor;
|
274 |
FIBSQLProcessor: TIBSQLProcessor;
|
275 |
FDatabase: TIBDatabase;
|
276 |
FDataOutputFormatter: TIBCustomDataOutput;
|
277 |
FIgnoreGrants: boolean;
|
278 |
FOnCreateDatabase: TOnCreateDatabase;
|
279 |
FOnErrorLog: TLogEvent;
|
280 |
FOnSelectSQL: TOnSelectSQL;
|
281 |
FOnSetStatement: TOnSetStatement;
|
282 |
FShowAffectedRows: boolean;
|
283 |
FShowPerformanceStats: boolean;
|
284 |
FStopOnFirstError: boolean;
|
285 |
FTransaction: TIBTransaction;
|
286 |
FInternalTransaction: TIBTransaction;
|
287 |
FISQL: TIBSQL;
|
288 |
FGetParamValue: TGetParamValue;
|
289 |
FOnOutputLog: TLogEvent;
|
290 |
FAutoDDL: boolean;
|
291 |
procedure DoCommit;
|
292 |
procedure DoReconnect;
|
293 |
procedure ExecSQL(stmt: string);
|
294 |
function GetOnProgressEvent: TOnProgressEvent;
|
295 |
function GetTransaction: TIBTransaction;
|
296 |
procedure SetDatabase(AValue: TIBDatabase);
|
297 |
procedure SetDataOutputFormatter(AValue: TIBCustomDataOutput);
|
298 |
procedure SetOnProgressEvent(AValue: TOnProgressEvent);
|
299 |
procedure SetParamValue(SQLVar: ISQLParam);
|
300 |
procedure SetShowPerformanceStats(AValue: boolean);
|
301 |
procedure SetTransaction(AValue: TIBTransaction);
|
302 |
protected
|
303 |
FSymbolStream: TSymbolStream;
|
304 |
procedure Add2Log(const Msg: string; IsError: boolean=true); virtual;
|
305 |
procedure EchoNextLine(Sender: TObject; Line: string);
|
306 |
procedure Notification(AComponent: TComponent; Operation: TOperation); override;
|
307 |
function ProcessStatement(stmt: string): boolean; virtual;
|
308 |
function ProcessStream: boolean;
|
309 |
public
|
310 |
constructor Create(aOwner: TComponent); override;
|
311 |
destructor Destroy; override;
|
312 |
procedure DefaultSelectSQLHandler(aSQLText: string);
|
313 |
published
|
314 |
property Database: TIBDatabase read FDatabase write SetDatabase;
|
315 |
property DataOutputFormatter: TIBCustomDataOutput read FDataOutputFormatter
|
316 |
write SetDataOutputFormatter;
|
317 |
property AutoDDL: boolean read FAutoDDL write FAutoDDL default true;
|
318 |
property Echo: boolean read FEcho write FEcho default true; {Echo Input to Log}
|
319 |
property IgnoreGrants: boolean read FIgnoreGrants write FIgnoreGrants;
|
320 |
property Transaction: TIBTransaction read FTransaction write SetTransaction;
|
321 |
property ShowAffectedRows: boolean read FShowAffectedRows write FShowAffectedRows;
|
322 |
property ShowPerformanceStats: boolean read FShowPerformanceStats write SetShowPerformanceStats;
|
323 |
property StopOnFirstError: boolean read FStopOnFirstError write FStopOnFirstError default true;
|
324 |
property GetParamValue: TGetParamValue read FGetParamValue write FGetParamValue; {resolve parameterized queries}
|
325 |
property OnOutputLog: TLogEvent read FOnOutputLog write FOnOutputLog; {Log handler}
|
326 |
property OnErrorLog: TLogEvent read FOnErrorLog write FOnErrorLog;
|
327 |
property OnProgressEvent: TOnProgressEvent read GetOnProgressEvent write SetOnProgressEvent; {Progress Bar Support}
|
328 |
property OnSelectSQL: TOnSelectSQL read FOnSelectSQL write FOnSelectSQL; {Handle Select SQL Statements}
|
329 |
property OnSetStatement: TOnSetStatement read FOnSetStatement write FOnSetStatement;
|
330 |
property OnCreateDatabase: TOnCreateDatabase read FOnCreateDatabase write FOnCreateDatabase;
|
331 |
end;
|
332 |
|
333 |
{
|
334 |
TIBXScript: runs an SQL script in the specified file or stream. The text is parsed
|
335 |
into SQL statements which are executed in turn. The intention is to be ISQL
|
336 |
compatible but with extensions:
|
337 |
|
338 |
* All DML and DDL Statements are supported.
|
339 |
|
340 |
* CREATE DATABASE, DROP DATABASE, CONNECT and COMMIT are supported.
|
341 |
|
342 |
* The following SET statements are supported:
|
343 |
SET SQL DIALECT
|
344 |
SET TERM
|
345 |
SET AUTODDL
|
346 |
SET BAIL
|
347 |
SET ECHO
|
348 |
SET COUNT
|
349 |
SET STATS
|
350 |
SET NAMES <character set>
|
351 |
|
352 |
* New Command: RECONNECT. Performs a commit followed by disconnecting and
|
353 |
reconnecting to the database.
|
354 |
|
355 |
* Procedure Bodies (BEGIN .. END blocks) are self-delimiting and do not need
|
356 |
an extra terminator. If a terminator is present, this is treated as an
|
357 |
empty statement. The result is ISQL compatible, but does not require the
|
358 |
use of SET TERM.
|
359 |
|
360 |
* DML statements may have arguments in IBX format (e.g UPDATE MYTABLE Set data = :mydata).
|
361 |
Arguments are valid only for BLOB columns and are resolved using the GetParamValue
|
362 |
event. This returns the blobid to be used. A typical use of the event is to
|
363 |
read binary data from a file, save it in a blob stream and return the blob id.
|
364 |
|
365 |
Select SQL statements are not directly supported but can be handled by an external
|
366 |
handler (OnSelectSQL event). If the handler is not present then an exception
|
367 |
is raised if a Select SQL statement is found.
|
368 |
|
369 |
Properties:
|
370 |
|
371 |
* Database: Link to TIBDatabase component
|
372 |
* Transaction: Link to Transaction. Defaults to internaltransaction (concurrency, wait)
|
373 |
* AutoDDL: When true DDL statements are automatically committed after execution
|
374 |
* Echo: boolean. When true, all SQL statements are echoed to log
|
375 |
* StopOnFirstError: boolean. When true the script engine terminates on the first
|
376 |
SQL Error.
|
377 |
* IgnoreGrants: When true, grant statements are silently discarded. This can be
|
378 |
useful when applying a script using the Embedded Server.
|
379 |
* ShowPerformanceStats: When true, performance statistics (in ISQL format) are
|
380 |
written to the log after a DML statement is executed
|
381 |
* DataOutputFormatter: Identifies a Data Output Formatter component used to format
|
382 |
the results of executing a Select Statement
|
383 |
|
384 |
|
385 |
Events:
|
386 |
|
387 |
* GetParamValue: called when an SQL parameter is found (in PSQL :name format).
|
388 |
This is only called for blob fields. Handler should return the BlobID to be
|
389 |
used as the parameter value. If not present an exception is raised when a
|
390 |
parameter is found.
|
391 |
* OnOutputLog: Called to write SQL Statements to the log (stdout)
|
392 |
* OnErrorLog: Called to write all other messages to the log (stderr)
|
393 |
* OnProgressEvent: Progress bar support. If Reset is true the value is maximum
|
394 |
value of progress bar. Otherwise called to step progress bar.
|
395 |
* OnSelectSQL: handler for select SQL statements. If not present, select SQL
|
396 |
statements result in an exception.
|
397 |
* OnSetStatement: called to process a SET command that has not already been
|
398 |
handled by TIBXScript.
|
399 |
|
400 |
The RunScript function is used to execute an SQL Script and may be called
|
401 |
multiple times.
|
402 |
}
|
403 |
|
404 |
{ TIBXScript }
|
405 |
|
406 |
TIBXScript = class(TCustomIBXScript)
|
407 |
public
|
408 |
constructor Create(aOwner: TComponent); override;
|
409 |
{use RunScript instead of PerformUpdate}
|
410 |
function PerformUpdate(SQLFile: string; aAutoDDL: boolean): boolean; overload; deprecated;
|
411 |
function PerformUpdate(SQLStream: TStream; aAutoDDL: boolean): boolean; overload; deprecated;
|
412 |
function RunScript(SQLFile: string): boolean; overload;
|
413 |
function RunScript(SQLStream: TStream): boolean; overload;
|
414 |
function RunScript(SQLLines: TStrings): boolean; overload;
|
415 |
function ExecSQLScript(sql: string): boolean;
|
416 |
end;
|
417 |
|
418 |
function StringToHex(octetString: string; MaxLineLength: integer=0): string; overload;
|
419 |
procedure StringToHex(octetString: string; TextOut: TStrings; MaxLineLength: integer=0); overload;
|
420 |
|
421 |
|
422 |
resourcestring
|
423 |
sInvalidSetStatement = 'Invalid %s Statement - %s';
|
424 |
|
425 |
implementation
|
426 |
|
427 |
uses Sysutils, RegExpr;
|
428 |
|
429 |
resourcestring
|
430 |
sTerminatorUnknownState = 'Statement Terminator in unexpected state (%d)';
|
431 |
sNoSelectSQL = 'Select SQL Statements are not supported';
|
432 |
sStackUnderflow = 'Stack Underflow';
|
433 |
sNoParamQueries = 'Parameterised Queries are not supported';
|
434 |
sStackOverFlow = 'Stack Overflow';
|
435 |
sResolveQueryParam = 'Resolving Query Parameter: %s';
|
436 |
sXMLStackUnderflow = 'XML Stack Underflow';
|
437 |
sInvalidEndTag = 'XML End Tag Mismatch - %s';
|
438 |
sXMLStackOverFlow = 'XML Stack Overflow';
|
439 |
sErrorState = 'Entered Error State';
|
440 |
sXMLError = 'Invalid XML (%c)';
|
441 |
sXMLAttributeError = 'Unexpected attribute - "%s" = "%s"';
|
442 |
sInvalidBoundsList = 'Invalid array bounds list - "%s"';
|
443 |
sBinaryBlockMustbeEven = 'Binary block must have an even number of characters';
|
444 |
sInvalidCharacterSet = 'Unrecognised character set name - "%s"';
|
445 |
sOnLineError = 'On Line %d Character %d: ';
|
446 |
sArrayIndexError = 'Array Index Error (%d)';
|
447 |
sBlobIndexError = 'Blob Index Error (%d)';
|
448 |
sStatementError = 'Error processing SQL statement: %s %s - for statement "%s"';
|
449 |
|
450 |
function StringToHex(octetString: string; MaxLineLength: integer): string; overload;
|
451 |
|
452 |
function ToHex(aValue: byte): string;
|
453 |
const
|
454 |
HexChars: array [0..15] of char = '0123456789ABCDEF';
|
455 |
begin
|
456 |
Result := HexChars[aValue shr 4] +
|
457 |
HexChars[(aValue and $0F)];
|
458 |
end;
|
459 |
|
460 |
var i, j: integer;
|
461 |
begin
|
462 |
i := 1;
|
463 |
Result := '';
|
464 |
if MaxLineLength = 0 then
|
465 |
while i <= Length(octetString) do
|
466 |
begin
|
467 |
Result += ToHex(byte(octetString[i]));
|
468 |
Inc(i);
|
469 |
end
|
470 |
else
|
471 |
while i <= Length(octetString) do
|
472 |
begin
|
473 |
for j := 1 to MaxLineLength do
|
474 |
begin
|
475 |
if i > Length(octetString) then
|
476 |
Exit
|
477 |
else
|
478 |
Result += ToHex(byte(octetString[i]));
|
479 |
inc(i);
|
480 |
end;
|
481 |
Result += LineEnding;
|
482 |
end;
|
483 |
end;
|
484 |
|
485 |
procedure StringToHex(octetString: string; TextOut: TStrings; MaxLineLength: integer); overload;
|
486 |
begin
|
487 |
TextOut.Add(StringToHex(octetString,MaxLineLength));
|
488 |
end;
|
489 |
|
490 |
|
491 |
|
492 |
{ TIBXScript }
|
493 |
|
494 |
constructor TIBXScript.Create(aOwner: TComponent);
|
495 |
begin
|
496 |
inherited Create(aOwner);
|
497 |
FSymbolStream := TBatchSymbolStream.Create;
|
498 |
FSymbolStream.OnNextLine := @EchoNextLine;
|
499 |
end;
|
500 |
|
501 |
function TIBXScript.PerformUpdate(SQLFile: string; aAutoDDL: boolean): boolean;
|
502 |
begin
|
503 |
FAutoDDL := aAutoDDL;
|
504 |
Result := RunScript( SQLFile);
|
505 |
end;
|
506 |
|
507 |
function TIBXScript.PerformUpdate(SQLStream: TStream; aAutoDDL: boolean
|
508 |
): boolean;
|
509 |
begin
|
510 |
FAutoDDL := aAutoDDL;
|
511 |
Result := RunScript(SQLStream);
|
512 |
end;
|
513 |
|
514 |
function TIBXScript.RunScript(SQLFile: string): boolean;
|
515 |
begin
|
516 |
TBatchSymbolStream(FSymbolStream).SetStreamSource(SQLFile);
|
517 |
Result := ProcessStream;
|
518 |
end;
|
519 |
|
520 |
function TIBXScript.RunScript(SQLStream: TStream): boolean;
|
521 |
begin
|
522 |
TBatchSymbolStream(FSymbolStream).SetStreamSource(SQLStream);
|
523 |
Result := ProcessStream;
|
524 |
end;
|
525 |
|
526 |
function TIBXScript.RunScript(SQLLines: TStrings): boolean;
|
527 |
begin
|
528 |
TBatchSymbolStream(FSymbolStream).SetStreamSource(SQLLines);
|
529 |
Result := ProcessStream;
|
530 |
end;
|
531 |
|
532 |
function TIBXScript.ExecSQLScript(sql: string): boolean;
|
533 |
var s: TStringList;
|
534 |
begin
|
535 |
s := TStringList.Create;
|
536 |
try
|
537 |
s.Text := sql;
|
538 |
TBatchSymbolStream(FSymbolStream).SetStreamSource(s);
|
539 |
Result := ProcessStream;
|
540 |
finally
|
541 |
s.Free;
|
542 |
end;
|
543 |
end;
|
544 |
|
545 |
{ TCustomIBXScript }
|
546 |
|
547 |
procedure TCustomIBXScript.Add2Log(const Msg: string; IsError: boolean);
|
548 |
begin
|
549 |
if IsError then
|
550 |
begin
|
551 |
if assigned(OnErrorLog) then OnErrorLog(self,Msg)
|
552 |
end
|
553 |
else
|
554 |
if assigned(FOnOutputLog) then FOnOutputLog(self,Msg)
|
555 |
end;
|
556 |
|
557 |
procedure TCustomIBXScript.DoCommit;
|
558 |
begin
|
559 |
with GetTransaction do
|
560 |
if InTransaction then Commit;
|
561 |
GetTransaction.Active := true;
|
562 |
end;
|
563 |
|
564 |
procedure TCustomIBXScript.DoReconnect;
|
565 |
var LoginPrompt: boolean;
|
566 |
begin
|
567 |
with GetTransaction do
|
568 |
if InTransaction then Commit;
|
569 |
LoginPrompt := Database.LoginPrompt;
|
570 |
Database.LoginPrompt := false;
|
571 |
Database.Connected := false;
|
572 |
Database.Connected := true;
|
573 |
Database.LoginPrompt := LoginPrompt;
|
574 |
GetTransaction.Active := true;
|
575 |
end;
|
576 |
|
577 |
procedure TCustomIBXScript.ExecSQL(stmt: string);
|
578 |
var DDL: boolean;
|
579 |
I: integer;
|
580 |
begin
|
581 |
Database.Connected := true;
|
582 |
FISQL.SQL.Text := stmt;
|
583 |
FISQL.Transaction := GetTransaction;
|
584 |
FISQL.Transaction.Active := true;
|
585 |
FISQL.ParamCheck := not FIBSQLProcessor.HasBegin; {Probably PSQL}
|
586 |
FISQL.Prepare;
|
587 |
FISQL.Statement.EnableStatistics(ShowPerformanceStats);
|
588 |
|
589 |
if FISQL.SQLStatementType in [SQLInsert, SQLUpdate, SQLDelete] then
|
590 |
begin
|
591 |
{Interpret parameters}
|
592 |
for I := 0 to FISQL.Params.Count - 1 do
|
593 |
SetParamValue(FISQL.Params[I]);
|
594 |
end;
|
595 |
|
596 |
if FISQL.SQLStatementType = SQLSelect then
|
597 |
begin
|
598 |
if assigned(OnSelectSQL) then
|
599 |
OnSelectSQL(self,stmt)
|
600 |
else
|
601 |
DefaultSelectSQLHandler(stmt);
|
602 |
end
|
603 |
else
|
604 |
begin
|
605 |
DDL := FISQL.SQLStatementType = SQLDDL;
|
606 |
if not DDL or not FIgnoreGrants or (Pos('GRANT',AnsiUpperCase(Trim(stmt))) <> 1) then
|
607 |
begin
|
608 |
FISQL.ExecQuery;
|
609 |
if ShowAffectedRows and not DDL then
|
610 |
Add2Log('Rows Affected: ' + IntToStr(FISQL.RowsAffected));
|
611 |
if not DDL then
|
612 |
TIBCustomDataOutput.ShowPerfStats(FISQL.Statement,@Add2Log);
|
613 |
end;
|
614 |
|
615 |
if FAutoDDL and DDL then
|
616 |
FISQL.Transaction.Commit;
|
617 |
FISQL.Close;
|
618 |
end;
|
619 |
FISQL.SQL.Clear;
|
620 |
end;
|
621 |
|
622 |
function TCustomIBXScript.GetOnProgressEvent: TOnProgressEvent;
|
623 |
begin
|
624 |
Result := FSymbolStream.OnProgressEvent;
|
625 |
end;
|
626 |
|
627 |
function TCustomIBXScript.GetTransaction: TIBTransaction;
|
628 |
begin
|
629 |
if FTransaction = nil then
|
630 |
Result := FInternalTransaction
|
631 |
else
|
632 |
Result := FTransaction;
|
633 |
end;
|
634 |
|
635 |
procedure TCustomIBXScript.EchoNextLine(Sender: TObject; Line: string);
|
636 |
begin
|
637 |
if Echo then Add2Log(Line);
|
638 |
end;
|
639 |
|
640 |
procedure TCustomIBXScript.Notification(AComponent: TComponent;
|
641 |
Operation: TOperation);
|
642 |
begin
|
643 |
inherited Notification(AComponent, Operation);
|
644 |
if (AComponent = FDatabase) and (Operation = opRemove) then
|
645 |
FDatabase := nil;
|
646 |
if (AComponent = FTransaction) and (Operation = opRemove) then
|
647 |
FTransaction := nil;
|
648 |
if (AComponent = DataOutputFormatter) and (Operation = opRemove) then
|
649 |
FDataOutputFormatter := nil;
|
650 |
end;
|
651 |
|
652 |
procedure TCustomIBXScript.SetDatabase(AValue: TIBDatabase);
|
653 |
begin
|
654 |
if not (csLoading in ComponentState) and (FDatabase = AValue) then Exit;
|
655 |
FDatabase := AValue;
|
656 |
FISQL.Database := AValue;
|
657 |
FIBXMLProcessor.Database := AValue;
|
658 |
FInternalTransaction.DefaultDatabase := AValue;
|
659 |
end;
|
660 |
|
661 |
procedure TCustomIBXScript.SetDataOutputFormatter(AValue: TIBCustomDataOutput);
|
662 |
begin
|
663 |
if FDataOutputFormatter = AValue then Exit;
|
664 |
if (FDataOutputFormatter <> nil) and (AValue <> nil) then
|
665 |
AValue.Assign(FDataOutputFormatter);
|
666 |
FDataOutputFormatter := AValue;
|
667 |
if FDataOutputFormatter <> nil then
|
668 |
FDataOutputFormatter.Database := Database;
|
669 |
end;
|
670 |
|
671 |
procedure TCustomIBXScript.SetOnProgressEvent(AValue: TOnProgressEvent);
|
672 |
begin
|
673 |
FSymbolStream.OnProgressEvent := AValue;
|
674 |
end;
|
675 |
|
676 |
procedure TCustomIBXScript.SetParamValue(SQLVar: ISQLParam);
|
677 |
var BlobID: TISC_QUAD;
|
678 |
ix: integer;
|
679 |
begin
|
680 |
if (SQLVar.SQLType = SQL_BLOB) and (Pos(ibx_blob,SQLVar.Name) = 1) then
|
681 |
begin
|
682 |
ix := StrToInt(system.copy(SQLVar.Name,length(ibx_blob)+1,length(SQLVar.Name)-length(ibx_blob)));
|
683 |
SQLVar.AsBlob := FIBXMLProcessor.BlobData[ix].BlobIntf;
|
684 |
Exit;
|
685 |
end
|
686 |
else
|
687 |
if (SQLVar.SQLType = SQL_ARRAY) and (Pos(ibx_array,SQLVar.Name) = 1) then
|
688 |
begin
|
689 |
ix := StrToInt(system.copy(SQLVar.Name,length(ibx_array)+1,length(SQLVar.Name)-length(ibx_array)));
|
690 |
SQLVar.AsArray := FIBXMLProcessor.ArrayData[ix].ArrayIntf;
|
691 |
Exit;
|
692 |
end;
|
693 |
|
694 |
if assigned(FGetParamValue) and (SQLVar.SQLType = SQL_BLOB) then
|
695 |
begin
|
696 |
Add2Log(Format(sResolveQueryParam,[SQLVar.Name]));
|
697 |
GetParamValue(self,SQLVar.Name,BlobID);
|
698 |
if (BlobID.gds_quad_high = 0) and (BlobID.gds_quad_low = 0) then
|
699 |
SQLVar.Clear
|
700 |
else
|
701 |
SQLVar.AsQuad := BlobID
|
702 |
end
|
703 |
else
|
704 |
raise Exception.Create(sNoParamQueries);
|
705 |
end;
|
706 |
|
707 |
procedure TCustomIBXScript.SetShowPerformanceStats(AValue: boolean);
|
708 |
begin
|
709 |
if FShowPerformanceStats = AValue then Exit;
|
710 |
FShowPerformanceStats := AValue;
|
711 |
if assigned(DataOutputFormatter) then
|
712 |
DataOutputFormatter.ShowPerformanceStats := AValue;
|
713 |
end;
|
714 |
|
715 |
function TCustomIBXScript.ProcessStream: boolean;
|
716 |
var stmt: string;
|
717 |
begin
|
718 |
Result := false;
|
719 |
while FIBSQLProcessor.GetNextStatement(FSymbolStream,stmt) do
|
720 |
try
|
721 |
// writeln('stmt = ',stmt);
|
722 |
if trim(stmt) = '' then continue;
|
723 |
if not ProcessStatement(stmt) then
|
724 |
ExecSQL(stmt);
|
725 |
|
726 |
except on E:Exception do
|
727 |
begin
|
728 |
if FInternalTransaction.InTransaction then
|
729 |
FInternalTransaction.Rollback;
|
730 |
if assigned(OnErrorLog) then
|
731 |
begin
|
732 |
Add2Log(Format(sStatementError,[FSymbolStream.GetErrorPrefix,
|
733 |
E.Message,stmt]),true);
|
734 |
if StopOnFirstError then Exit;
|
735 |
end
|
736 |
else
|
737 |
raise;
|
738 |
end
|
739 |
end;
|
740 |
Result := true;
|
741 |
end;
|
742 |
|
743 |
function TCustomIBXScript.ProcessStatement(stmt: string): boolean;
|
744 |
var command: string;
|
745 |
ucStmt: string;
|
746 |
|
747 |
function Toggle(aValue: string): boolean;
|
748 |
begin
|
749 |
aValue := AnsiUpperCase(aValue);
|
750 |
if aValue = 'ON' then
|
751 |
Result := true
|
752 |
else
|
753 |
if aValue = 'OFF' then
|
754 |
Result := false
|
755 |
else
|
756 |
raise Exception.CreateFmt(sInvalidSetStatement, [command,stmt]);
|
757 |
end;
|
758 |
|
759 |
procedure ExtractUserInfo;
|
760 |
var RegexObj: TRegExpr;
|
761 |
begin
|
762 |
RegexObj := TRegExpr.Create;
|
763 |
try
|
764 |
RegexObj.ModifierG := false; {turn off greedy matches}
|
765 |
RegexObj.Expression := ' +USER +''(.+)''';
|
766 |
if RegexObj.Exec(ucStmt) then
|
767 |
FDatabase.Params.Values['user_name'] := RegexObj.Match[1];
|
768 |
|
769 |
RegexObj.Expression := ' +PASSWORD +''(.+)''';
|
770 |
if RegexObj.Exec(ucStmt) then
|
771 |
FDatabase.Params.Values['password'] :=
|
772 |
system.copy(stmt,RegexObj.MatchPos[1],RegexObj.MatchLen[1]);
|
773 |
finally
|
774 |
RegexObj.Free;
|
775 |
end;
|
776 |
end;
|
777 |
|
778 |
procedure ExtractConnectInfo;
|
779 |
var RegexObj: TRegExpr;
|
780 |
begin
|
781 |
ExtractUserInfo;
|
782 |
RegexObj := TRegExpr.Create;
|
783 |
try
|
784 |
RegexObj.ModifierG := false; {turn off greedy matches}
|
785 |
RegexObj.Expression := '^ *CONNECT +''(.*)''';
|
786 |
if RegexObj.Exec(ucStmt) then
|
787 |
begin
|
788 |
FDatabase.DatabaseName := system.copy(stmt,RegexObj.MatchPos[1],RegexObj.MatchLen[1]);
|
789 |
end;
|
790 |
|
791 |
RegexObj.Expression := ' +ROLE +''(.+)''';
|
792 |
if RegexObj.Exec(ucStmt) then
|
793 |
FDatabase.Params.Values['sql_role_name'] := RegexObj.Match[1]
|
794 |
else
|
795 |
with FDatabase.Params do
|
796 |
if IndexOfName('sql_role_name') <> -1 then
|
797 |
Delete(IndexOfName('sql_role_name'));
|
798 |
|
799 |
RegexObj.Expression := ' +CACHE +([0-9]+)';
|
800 |
if RegexObj.Exec(ucStmt) then
|
801 |
FDatabase.Params.Values['cache_manager'] := RegexObj.Match[1]
|
802 |
else
|
803 |
with FDatabase.Params do
|
804 |
if IndexOfName('cache_manager') <> -1 then
|
805 |
Delete(IndexOfName('cache_manager'));
|
806 |
finally
|
807 |
RegexObj.Free;
|
808 |
end;
|
809 |
end;
|
810 |
|
811 |
procedure UpdateUserPassword;
|
812 |
var RegexObj: TRegExpr;
|
813 |
begin
|
814 |
RegexObj := TRegExpr.Create;
|
815 |
try
|
816 |
RegexObj.ModifierG := false; {turn off greedy matches}
|
817 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'') +USER +''(.+)''';
|
818 |
if not RegexObj.Exec(ucStmt) and (FDatabase.Params.IndexOfName('user_name') <> -1) then
|
819 |
begin
|
820 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'')';
|
821 |
if RegexObj.Exec(ucStmt) then
|
822 |
begin
|
823 |
system.Insert(' USER ''' + FDatabase.Params.Values['user_name'] +'''',stmt,
|
824 |
RegexObj.MatchPos[2] + RegexObj.MatchLen[2]);
|
825 |
ucStmt := AnsiUpperCase(stmt);
|
826 |
end;
|
827 |
end;
|
828 |
|
829 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +USER +''.+'' PASSWORD +''(.+)''';
|
830 |
if not RegexObj.Exec(ucStmt) and (FDatabase.Params.IndexOfName('password') <> -1) then
|
831 |
begin
|
832 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +(USER +''.+'')';
|
833 |
if RegexObj.Exec(ucStmt) then
|
834 |
begin
|
835 |
system.Insert(' PASSWORD ''' + FDatabase.Params.Values['password'] +'''',stmt,
|
836 |
RegexObj.MatchPos[2] + RegexObj.MatchLen[2]);
|
837 |
ucStmt := AnsiUpperCase(stmt);
|
838 |
end;
|
839 |
end;
|
840 |
finally
|
841 |
RegexObj.Free;
|
842 |
end;
|
843 |
end;
|
844 |
|
845 |
var RegexObj: TRegExpr;
|
846 |
n: integer;
|
847 |
charsetid: integer;
|
848 |
param: string;
|
849 |
Terminator: char;
|
850 |
FileName: string;
|
851 |
DBConnected: boolean;
|
852 |
LoginPrompt: boolean;
|
853 |
begin
|
854 |
Result := false;
|
855 |
ucStmt := AnsiUpperCase(stmt);
|
856 |
Terminator := FSymbolStream.Terminator;
|
857 |
RegexObj := TRegExpr.Create;
|
858 |
try
|
859 |
{process create database}
|
860 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''(.*)''(.*)(\' + Terminator + '|)';
|
861 |
if RegexObj.Exec(ucStmt) then
|
862 |
begin
|
863 |
FileName := system.copy(stmt,RegexObj.MatchPos[2], RegexObj.MatchLen[2]);
|
864 |
if assigned(FOnCreateDatabase) then
|
865 |
OnCreateDatabase(self,FileName);
|
866 |
stmt := 'CREATE DATABASE ''' + FileName + '''' + system.copy(stmt,RegexObj.MatchPos[3], RegexObj.MatchLen[3]);
|
867 |
ucStmt := AnsiUpperCase(stmt);
|
868 |
UpdateUserPassword;
|
869 |
FDatabase.Connected := false;
|
870 |
FDatabase.CreateDatabase(stmt);
|
871 |
FDatabase.Connected := false;
|
872 |
ExtractUserInfo;
|
873 |
DoReconnect;
|
874 |
Result := true;
|
875 |
Exit;
|
876 |
end;
|
877 |
|
878 |
{process connect statement}
|
879 |
RegexObj.Expression := '^ *CONNECT +.*(\' + Terminator + '|)';
|
880 |
if RegexObj.Exec(ucStmt) then
|
881 |
begin
|
882 |
ExtractConnectInfo;
|
883 |
DoReconnect;
|
884 |
Result := true;
|
885 |
Exit;
|
886 |
end;
|
887 |
|
888 |
{Process Drop Database}
|
889 |
RegexObj.Expression := '^ *DROP +DATABASE *(\' + Terminator + '|)';
|
890 |
if RegexObj.Exec(ucStmt) then
|
891 |
begin
|
892 |
FDatabase.DropDatabase;
|
893 |
Result := true;
|
894 |
Exit;
|
895 |
end;
|
896 |
|
897 |
{process commit statement}
|
898 |
RegexObj.Expression := '^ *COMMIT *(\' + Terminator + '|)';
|
899 |
if RegexObj.Exec(ucStmt) then
|
900 |
begin
|
901 |
DoCommit;
|
902 |
Result := true;
|
903 |
Exit;
|
904 |
end;
|
905 |
|
906 |
{process Reconnect statement}
|
907 |
RegexObj.Expression := '^ *RECONNECT *(\' + Terminator + '|)';
|
908 |
if RegexObj.Exec(ucStmt) then
|
909 |
begin
|
910 |
DoReconnect;
|
911 |
Result := true;
|
912 |
Exit;
|
913 |
end;
|
914 |
|
915 |
|
916 |
{Process Set Term}
|
917 |
RegexObj.Expression := '^ *SET +TERM +(.) *(\' + Terminator + '|)';
|
918 |
if RegexObj.Exec(ucStmt) then
|
919 |
begin
|
920 |
FSymbolStream.Terminator := RegexObj.Match[1][1];
|
921 |
Result := true;
|
922 |
Exit;
|
923 |
end;
|
924 |
|
925 |
{process Set SQL Dialect}
|
926 |
RegexObj.Expression := '^ *SET +SQL +DIALECT +([0-9]) *(\' + Terminator + '|)';
|
927 |
if RegexObj.Exec(ucStmt) then
|
928 |
begin
|
929 |
n := StrToInt(RegexObj.Match[1]);
|
930 |
if Database.SQLDialect <> n then
|
931 |
begin
|
932 |
Database.SQLDialect := n;
|
933 |
if Database.Connected then
|
934 |
DoReconnect;
|
935 |
end;
|
936 |
Result := true;
|
937 |
Exit;
|
938 |
end;
|
939 |
|
940 |
{Process Remaining Set statements}
|
941 |
RegexObj.Expression := '^ *SET +([A-Z]+)( +[A-Z0-9]+|) *(\' + Terminator + '|)';
|
942 |
if RegexObj.Exec(ucStmt) then
|
943 |
begin
|
944 |
command := AnsiUpperCase(RegexObj.Match[1]);
|
945 |
param := trim(RegexObj.Match[2]);
|
946 |
if command = 'AUTODDL' then
|
947 |
AutoDDL := ((RegexObj.MatchLen[2] = 0) and not AutoDDL) or
|
948 |
(RegexObj.MatchLen[2] > 0) and Toggle(param)
|
949 |
else
|
950 |
if command = 'BAIL' then
|
951 |
StopOnFirstError := ((RegexObj.MatchLen[2] = 0) and not StopOnFirstError) or
|
952 |
(RegexObj.MatchLen[2] > 0) and Toggle(param)
|
953 |
else
|
954 |
if command = 'ECHO' then
|
955 |
Echo := ((RegexObj.MatchLen[2] = 0) and not Echo) or
|
956 |
(RegexObj.MatchLen[2] > 0) and Toggle(param)
|
957 |
else
|
958 |
if command = 'COUNT' then
|
959 |
ShowAffectedRows := ((RegexObj.MatchLen[2] = 0) and not ShowAffectedRows) or
|
960 |
(RegexObj.MatchLen[2] > 0) and Toggle(param)
|
961 |
else
|
962 |
if command = 'STATS' then
|
963 |
ShowPerformanceStats := ((RegexObj.MatchLen[2] = 0) and not FShowPerformanceStats) or
|
964 |
(RegexObj.MatchLen[2] > 0) and Toggle(param)
|
965 |
else
|
966 |
if command = 'NAMES' then
|
967 |
begin
|
968 |
if Database.Attachment.CharSetName2CharSetID(param,charsetid) then
|
969 |
begin
|
970 |
DBConnected := Database.Connected;
|
971 |
LoginPrompt := Database.LoginPrompt;
|
972 |
Database.LoginPrompt := false;
|
973 |
Database.Connected := false;
|
974 |
Database.Params.Values['lc_ctype'] := param;
|
975 |
Database.Connected := DBConnected;
|
976 |
Database.LoginPrompt := LoginPrompt;
|
977 |
end
|
978 |
else
|
979 |
raise Exception.CreateFmt(sInvalidCharacterSet, [param,stmt]);
|
980 |
end
|
981 |
else
|
982 |
begin
|
983 |
if assigned(DataOutputFormatter) then
|
984 |
DataOutputFormatter.SetCommand(command,param,stmt,Result);
|
985 |
if not Result and assigned(OnSetStatement) then
|
986 |
OnSetStatement(self,command,param,stmt,Result)
|
987 |
else
|
988 |
raise Exception.CreateFmt(sInvalidSetStatement, [command,stmt]);
|
989 |
Exit;
|
990 |
end;
|
991 |
Result := true;
|
992 |
Exit;
|
993 |
end;
|
994 |
|
995 |
finally
|
996 |
RegexObj.Free;
|
997 |
end;
|
998 |
end;
|
999 |
|
1000 |
procedure TCustomIBXScript.SetTransaction(AValue: TIBTransaction);
|
1001 |
begin
|
1002 |
if FTransaction = AValue then Exit;
|
1003 |
FTransaction := AValue;
|
1004 |
FIBXMLProcessor.Transaction := AValue;
|
1005 |
end;
|
1006 |
|
1007 |
constructor TCustomIBXScript.Create(aOwner: TComponent);
|
1008 |
begin
|
1009 |
inherited Create(aOwner);
|
1010 |
FStopOnFirstError := true;
|
1011 |
FEcho := true;
|
1012 |
FAutoDDL := true;
|
1013 |
FISQL := TIBSQL.Create(self);
|
1014 |
FISQL.ParamCheck := true;
|
1015 |
FIBXMLProcessor := TIBXMLProcessor.Create;
|
1016 |
FIBSQLProcessor := TIBSQLProcessor.Create(FIBXMLProcessor);
|
1017 |
FInternalTransaction := TIBTransaction.Create(self);
|
1018 |
FInternalTransaction.Params.Clear;
|
1019 |
FInternalTransaction.Params.Add('concurrency');
|
1020 |
FInternalTransaction.Params.Add('wait');
|
1021 |
end;
|
1022 |
|
1023 |
destructor TCustomIBXScript.Destroy;
|
1024 |
begin
|
1025 |
if FIBSQLProcessor <> nil then FIBSQLProcessor.Free;
|
1026 |
if FIBXMLProcessor <> nil then FIBXMLProcessor.Free;
|
1027 |
if FSymbolStream <> nil then FSymbolStream.Free;
|
1028 |
if FISQL <> nil then FISQL.Free;
|
1029 |
if FInternalTransaction <> nil then FInternalTransaction.Free;
|
1030 |
inherited Destroy;
|
1031 |
end;
|
1032 |
|
1033 |
procedure TCustomIBXScript.DefaultSelectSQLHandler(aSQLText: string);
|
1034 |
begin
|
1035 |
if assigned(DataOutputFormatter) then
|
1036 |
DataOutputFormatter.DataOut(aSQLText,@Add2Log)
|
1037 |
else
|
1038 |
FSymbolStream.ShowError(sNoSelectSQL,[nil]);
|
1039 |
end;
|
1040 |
|
1041 |
{ TIBSQLProcessor }
|
1042 |
|
1043 |
procedure TIBSQLProcessor.AddToSQL(const Symbol: string);
|
1044 |
begin
|
1045 |
FSQLText := FSQLText + Symbol;
|
1046 |
// writeln('SQL = ',FSQLText);
|
1047 |
end;
|
1048 |
|
1049 |
procedure TIBSQLProcessor.SetState(AState: TSQLStates);
|
1050 |
begin
|
1051 |
if FStackIndex > 16 then
|
1052 |
FSymbolStream.ShowError(sStackOverFlow,[nil]);
|
1053 |
FStack[FStackIndex] := FState;
|
1054 |
Inc(FStackIndex);
|
1055 |
FState := AState
|
1056 |
end;
|
1057 |
|
1058 |
function TIBSQLProcessor.PopState: TSQLStates;
|
1059 |
begin
|
1060 |
if FStackIndex = 0 then
|
1061 |
FSymbolStream.ShowError(sStackUnderflow,[nil]);
|
1062 |
Dec(FStackIndex);
|
1063 |
Result := FStack[FStackIndex]
|
1064 |
end;
|
1065 |
|
1066 |
constructor TIBSQLProcessor.Create(XMLProcessor: TIBXMLProcessor);
|
1067 |
begin
|
1068 |
inherited Create;
|
1069 |
FXMLProcessor := XMLProcessor;
|
1070 |
end;
|
1071 |
|
1072 |
function TIBSQLProcessor.GetNextStatement(SymbolStream: TSymbolStream;
|
1073 |
var stmt: string): boolean;
|
1074 |
var Symbol: TSQLSymbol;
|
1075 |
NonSpace: boolean;
|
1076 |
Done: boolean;
|
1077 |
begin
|
1078 |
FSQLText := '';
|
1079 |
FState := stInit;
|
1080 |
FHasBegin := false;
|
1081 |
FSymbolStream := SymbolStream;
|
1082 |
FXMLProcessor.NextStatement;
|
1083 |
SymbolStream.NextStatement;
|
1084 |
|
1085 |
Result := true;
|
1086 |
Done := false;
|
1087 |
NonSpace := false;
|
1088 |
while not Done do
|
1089 |
with SymbolStream do
|
1090 |
begin
|
1091 |
if FState = stError then
|
1092 |
ShowError(sErrorState,[nil]);
|
1093 |
Symbol := GetSymbol;
|
1094 |
// writeln('Symbol = ',Symbol,' Value = ',SymbolValue);
|
1095 |
if not (Symbol in [' ',sqEOL]) then
|
1096 |
NonSpace := true;
|
1097 |
|
1098 |
case Symbol of
|
1099 |
sqTag:
|
1100 |
begin
|
1101 |
if FState in [stInSQL,stNested] then
|
1102 |
AddToSQL(FXMLProcessor.AnalyseXML(SymbolStream));
|
1103 |
end;
|
1104 |
|
1105 |
sqTerminator:
|
1106 |
case FState of
|
1107 |
stInit: {ignore empty statement};
|
1108 |
|
1109 |
stInSQL:
|
1110 |
Done := true;
|
1111 |
|
1112 |
stNested:
|
1113 |
AddToSQL(Terminator);
|
1114 |
|
1115 |
stInDeclaration:
|
1116 |
begin
|
1117 |
FState := PopState;
|
1118 |
AddToSQL(Terminator);
|
1119 |
end;
|
1120 |
|
1121 |
else
|
1122 |
ShowError(sTerminatorUnknownState,[FState]);
|
1123 |
end;
|
1124 |
|
1125 |
';':
|
1126 |
begin
|
1127 |
if FState = stInDeclaration then
|
1128 |
FState := PopState;
|
1129 |
AddToSQL(';');
|
1130 |
end;
|
1131 |
|
1132 |
'*':
|
1133 |
begin
|
1134 |
AddToSQL('*');
|
1135 |
if FState = stInit then
|
1136 |
FState := stInSQL
|
1137 |
end;
|
1138 |
|
1139 |
'/':
|
1140 |
begin
|
1141 |
AddToSQL('/');
|
1142 |
if FState = stInit then
|
1143 |
FState := stInSQL
|
1144 |
end;
|
1145 |
|
1146 |
sqComment,
|
1147 |
sqQuotedString,
|
1148 |
sqDoubleQuotedString:
|
1149 |
if FState <> stInit then
|
1150 |
AddToSQL(SymbolValue);
|
1151 |
|
1152 |
sqCommentLine:
|
1153 |
if FState <> stInit then
|
1154 |
AddToSQL(SymbolValue + LineEnding);
|
1155 |
|
1156 |
sqEnd:
|
1157 |
begin
|
1158 |
AddToSQL(SymbolValue);
|
1159 |
case FState of
|
1160 |
stNested:
|
1161 |
begin
|
1162 |
if FNested = 0 then
|
1163 |
begin
|
1164 |
FState := PopState;
|
1165 |
if not FInCase then
|
1166 |
begin
|
1167 |
FState := stInit;
|
1168 |
Done := true;
|
1169 |
end
|
1170 |
else
|
1171 |
FInCase := false;
|
1172 |
end
|
1173 |
else
|
1174 |
Dec(FNested)
|
1175 |
end;
|
1176 |
{Otherwise ignore}
|
1177 |
end
|
1178 |
end;
|
1179 |
|
1180 |
sqBegin:
|
1181 |
begin
|
1182 |
FHasBegin := true;
|
1183 |
AddToSQL(SymbolValue);
|
1184 |
case FState of
|
1185 |
stNested:
|
1186 |
Inc(FNested);
|
1187 |
|
1188 |
stInSQL,
|
1189 |
stInit:
|
1190 |
SetState(stNested);
|
1191 |
end
|
1192 |
end;
|
1193 |
|
1194 |
sqCase:
|
1195 |
begin
|
1196 |
AddToSQL(SymbolValue);
|
1197 |
case FState of
|
1198 |
stNested:
|
1199 |
Inc(FNested);
|
1200 |
|
1201 |
stInSQL,
|
1202 |
stInit:
|
1203 |
begin
|
1204 |
FInCase := true;
|
1205 |
SetState(stNested);
|
1206 |
end;
|
1207 |
end
|
1208 |
end;
|
1209 |
|
1210 |
sqDeclare:
|
1211 |
begin
|
1212 |
AddToSQL(SymbolValue);
|
1213 |
if FState in [stInit,stInSQL] then
|
1214 |
SetState(stInDeclaration)
|
1215 |
end;
|
1216 |
|
1217 |
sqString:
|
1218 |
begin
|
1219 |
AddToSQL(SymbolValue);
|
1220 |
if FState = stInit then
|
1221 |
FState := stInSQL
|
1222 |
end;
|
1223 |
|
1224 |
sqEOL:
|
1225 |
begin
|
1226 |
case FState of
|
1227 |
stInit:
|
1228 |
{Do nothing};
|
1229 |
else
|
1230 |
if NonSpace then AddToSQL(LineEnding);
|
1231 |
end;
|
1232 |
end;
|
1233 |
|
1234 |
sqEOF:
|
1235 |
begin
|
1236 |
Done := true;
|
1237 |
Result := trim(FSQLText) <> '';
|
1238 |
end
|
1239 |
else
|
1240 |
if FState <> stInit then
|
1241 |
AddToSQL(Symbol);
|
1242 |
end
|
1243 |
end;
|
1244 |
stmt := FSQLText;
|
1245 |
// writeln('stmt = ',stmt);
|
1246 |
end;
|
1247 |
|
1248 |
{ TIBXMLProcessor }
|
1249 |
|
1250 |
procedure TIBXMLProcessor.EndXMLTag(xmltag: TXMLTag);
|
1251 |
begin
|
1252 |
if FXMLTagIndex = 0 then
|
1253 |
FSymbolStream.ShowError(sXMLStackUnderflow,[nil]);
|
1254 |
if xmltag <> FXMLTagStack[FXMLTagIndex] then
|
1255 |
FSymbolStream.ShowError(sInvalidEndTag,[FSymbolStream.SymbolValue]);
|
1256 |
|
1257 |
case FXMLTagStack[FXMLTagIndex] of
|
1258 |
xtBlob:
|
1259 |
FBlobData[FCurrentBlob].BlobIntf.Close;
|
1260 |
|
1261 |
xtArray:
|
1262 |
FArrayData[FCurrentArray].ArrayIntf.SaveChanges;
|
1263 |
|
1264 |
xtElt:
|
1265 |
Dec(FArrayData[FCurrentArray].CurrentRow);
|
1266 |
end;
|
1267 |
Dec(FXMLTagIndex);
|
1268 |
end;
|
1269 |
|
1270 |
procedure TIBXMLProcessor.EnterTag;
|
1271 |
var aCharSetID: integer;
|
1272 |
begin
|
1273 |
case FXMLTagStack[FXMLTagIndex] of
|
1274 |
xtBlob:
|
1275 |
begin
|
1276 |
Database.Connected := true;
|
1277 |
Transaction.Active := true;
|
1278 |
FBlobData[FCurrentBlob].BlobIntf := Database.Attachment.CreateBlob(
|
1279 |
Transaction.TransactionIntf,FBlobData[FCurrentBlob].SubType);
|
1280 |
end;
|
1281 |
|
1282 |
xtArray:
|
1283 |
with FArrayData[FCurrentArray] do
|
1284 |
begin
|
1285 |
Database.Connected := true;
|
1286 |
Transaction.Active := true;
|
1287 |
Database.Attachment.CharSetName2CharSetID(CharSet,aCharSetID);
|
1288 |
SetLength(Index,dim);
|
1289 |
ArrayIntf := Database.Attachment.CreateArray(
|
1290 |
Transaction.TransactionIntf,
|
1291 |
Database.Attachment.CreateArrayMetaData(SQLType,
|
1292 |
relationName,columnName,Scale,Size,
|
1293 |
aCharSetID,dim,bounds)
|
1294 |
);
|
1295 |
end;
|
1296 |
end;
|
1297 |
end;
|
1298 |
|
1299 |
function TIBXMLProcessor.GetArrayData(index: integer): TArrayData;
|
1300 |
begin
|
1301 |
if (index < 0) or (index > ArrayDataCount) then
|
1302 |
FSymbolStream.ShowError(sArrayIndexError,[index]);
|
1303 |
Result := FArrayData[index];
|
1304 |
end;
|
1305 |
|
1306 |
function TIBXMLProcessor.GetArrayDataCount: integer;
|
1307 |
begin
|
1308 |
Result := Length(FArrayData);
|
1309 |
end;
|
1310 |
|
1311 |
function TIBXMLProcessor.GetBlobData(index: integer): TBlobData;
|
1312 |
begin
|
1313 |
if (index < 0) or (index > BlobDataCount) then
|
1314 |
FSymbolStream.ShowError(sBlobIndexError,[index]);
|
1315 |
Result := FBlobData[index];
|
1316 |
end;
|
1317 |
|
1318 |
function TIBXMLProcessor.GetBlobDataCount: integer;
|
1319 |
begin
|
1320 |
Result := Length(FBlobData);
|
1321 |
end;
|
1322 |
|
1323 |
procedure TIBXMLProcessor.ProcessTagValue(tagValue: string);
|
1324 |
|
1325 |
function nibble(hex: char): byte;
|
1326 |
begin
|
1327 |
case hex of
|
1328 |
'0': Result := 0;
|
1329 |
'1': Result := 1;
|
1330 |
'2': Result := 2;
|
1331 |
'3': Result := 3;
|
1332 |
'4': Result := 4;
|
1333 |
'5': Result := 5;
|
1334 |
'6': Result := 6;
|
1335 |
'7': Result := 7;
|
1336 |
'8': Result := 8;
|
1337 |
'9': Result := 9;
|
1338 |
'a','A': Result := 10;
|
1339 |
'b','B': Result := 11;
|
1340 |
'c','C': Result := 12;
|
1341 |
'd','D': Result := 13;
|
1342 |
'e','E': Result := 14;
|
1343 |
'f','F': Result := 15;
|
1344 |
end;
|
1345 |
end;
|
1346 |
|
1347 |
procedure RemoveWhiteSpace(var hexData: string);
|
1348 |
var i: integer;
|
1349 |
begin
|
1350 |
{Remove White Space}
|
1351 |
i := 1;
|
1352 |
while i <= length(hexData) do
|
1353 |
begin
|
1354 |
case hexData[i] of
|
1355 |
' ',#9,#10,#13:
|
1356 |
begin
|
1357 |
if i < Length(hexData) then
|
1358 |
Move(hexData[i+1],hexData[i],Length(hexData)-i);
|
1359 |
SetLength(hexData,Length(hexData)-1);
|
1360 |
end;
|
1361 |
else
|
1362 |
Inc(i);
|
1363 |
end;
|
1364 |
end;
|
1365 |
end;
|
1366 |
|
1367 |
procedure WriteToBlob(hexData: string);
|
1368 |
var i,j : integer;
|
1369 |
blength: integer;
|
1370 |
P: PChar;
|
1371 |
begin
|
1372 |
RemoveWhiteSpace(hexData);
|
1373 |
if odd(length(hexData)) then
|
1374 |
FSymbolStream.ShowError(sBinaryBlockMustbeEven,[nil]);
|
1375 |
blength := Length(hexData) div 2;
|
1376 |
IBAlloc(FBlobBuffer,0,blength);
|
1377 |
j := 1;
|
1378 |
P := FBlobBuffer;
|
1379 |
for i := 1 to blength do
|
1380 |
begin
|
1381 |
P^ := char((nibble(hexData[j]) shl 4) or nibble(hexdata[j+1]));
|
1382 |
Inc(j,2);
|
1383 |
Inc(P);
|
1384 |
end;
|
1385 |
FBlobData[FCurrentBlob].BlobIntf.Write(FBlobBuffer^,blength);
|
1386 |
end;
|
1387 |
|
1388 |
begin
|
1389 |
if tagValue = '' then Exit;
|
1390 |
case FXMLTagStack[FXMLTagIndex] of
|
1391 |
xtBlob:
|
1392 |
WriteToBlob(tagValue);
|
1393 |
|
1394 |
xtElt:
|
1395 |
with FArrayData[FCurrentArray] do
|
1396 |
ArrayIntf.SetAsString(index,tagValue);
|
1397 |
|
1398 |
end;
|
1399 |
end;
|
1400 |
|
1401 |
procedure TIBXMLProcessor.StartXMLTag(xmltag: TXMLTag);
|
1402 |
begin
|
1403 |
if FXMLTagIndex > 19 then
|
1404 |
FSymbolStream.ShowError(sXMLStackOverFlow,[nil]);
|
1405 |
Inc(FXMLTagIndex);
|
1406 |
FXMLTagStack[FXMLTagIndex] := xmltag;
|
1407 |
case xmltag of
|
1408 |
xtBlob:
|
1409 |
begin
|
1410 |
Inc(FCurrentBlob);
|
1411 |
SetLength(FBlobData,FCurrentBlob+1);
|
1412 |
FBlobData[FCurrentBlob].BlobIntf := nil;
|
1413 |
FBlobData[FCurrentBlob].SubType := 0;
|
1414 |
end;
|
1415 |
|
1416 |
xtArray:
|
1417 |
begin
|
1418 |
Inc(FCurrentArray);
|
1419 |
SetLength(FArrayData,FCurrentArray+1);
|
1420 |
with FArrayData[FCurrentArray] do
|
1421 |
begin
|
1422 |
ArrayIntf := nil;
|
1423 |
SQLType := 0;
|
1424 |
dim := 0;
|
1425 |
Size := 0;
|
1426 |
Scale := 0;
|
1427 |
CharSet := 'NONE';
|
1428 |
SetLength(Index,0);
|
1429 |
CurrentRow := -1;
|
1430 |
end;
|
1431 |
end;
|
1432 |
|
1433 |
xtElt:
|
1434 |
with FArrayData[FCurrentArray] do
|
1435 |
Inc(CurrentRow);
|
1436 |
|
1437 |
end;
|
1438 |
end;
|
1439 |
|
1440 |
procedure TIBXMLProcessor.ProcessAttributeValue(attrValue: string);
|
1441 |
begin
|
1442 |
case FXMLTagStack[FXMLTagIndex] of
|
1443 |
xtBlob:
|
1444 |
if FAttributeName = 'subtype' then
|
1445 |
FBlobData[FCurrentBlob].SubType := StrToInt(attrValue)
|
1446 |
else
|
1447 |
FSymbolStream.ShowError(sXMLAttributeError,[FAttributeName,attrValue]);
|
1448 |
|
1449 |
xtArray:
|
1450 |
if FAttributeName = 'sqltype' then
|
1451 |
FArrayData[FCurrentArray].SQLType := StrToInt(attrValue)
|
1452 |
else
|
1453 |
if FAttributeName = 'relation_name' then
|
1454 |
FArrayData[FCurrentArray].relationName := attrValue
|
1455 |
else
|
1456 |
if FAttributeName = 'column_name' then
|
1457 |
FArrayData[FCurrentArray].columnName := attrValue
|
1458 |
else
|
1459 |
if FAttributeName = 'dim' then
|
1460 |
FArrayData[FCurrentArray].Dim := StrToInt(attrValue)
|
1461 |
else
|
1462 |
if FAttributeName = 'length' then
|
1463 |
FArrayData[FCurrentArray].Size := StrToInt(attrValue)
|
1464 |
else
|
1465 |
if FAttributeName = 'scale' then
|
1466 |
FArrayData[FCurrentArray].Scale := StrToInt(attrValue)
|
1467 |
else
|
1468 |
if FAttributeName = 'charset' then
|
1469 |
FArrayData[FCurrentArray].CharSet := attrValue
|
1470 |
else
|
1471 |
if FAttributeName = 'bounds' then
|
1472 |
ProcessBoundsList(attrValue)
|
1473 |
else
|
1474 |
FSymbolStream.ShowError(sXMLAttributeError,[FAttributeName,attrValue]);
|
1475 |
|
1476 |
xtElt:
|
1477 |
if FAttributeName = 'ix' then
|
1478 |
with FArrayData[FCurrentArray] do
|
1479 |
Index[CurrentRow] := StrToInt(attrValue)
|
1480 |
else
|
1481 |
FSymbolStream.ShowError(sXMLAttributeError,[FAttributeName,attrValue]);
|
1482 |
end;
|
1483 |
end;
|
1484 |
|
1485 |
procedure TIBXMLProcessor.ProcessBoundsList(boundsList: string);
|
1486 |
var list: TStringList;
|
1487 |
i,j: integer;
|
1488 |
begin
|
1489 |
list := TStringList.Create;
|
1490 |
try
|
1491 |
list.Delimiter := ',';
|
1492 |
list.DelimitedText := boundsList;
|
1493 |
with FArrayData[FCurrentArray] do
|
1494 |
begin
|
1495 |
if dim <> list.Count then
|
1496 |
FSymbolStream.ShowError(sInvalidBoundsList,[boundsList]);
|
1497 |
SetLength(bounds,dim);
|
1498 |
for i := 0 to list.Count - 1 do
|
1499 |
begin
|
1500 |
j := Pos(':',list[i]);
|
1501 |
if j = 0 then
|
1502 |
raise Exception.CreateFmt(sInvalidBoundsList,[boundsList]);
|
1503 |
bounds[i].LowerBound := StrToInt(system.copy(list[i],1,j-1));
|
1504 |
bounds[i].UpperBound := StrToInt(system.copy(list[i],j+1,length(list[i])-j));
|
1505 |
end;
|
1506 |
end;
|
1507 |
finally
|
1508 |
list.Free;
|
1509 |
end;
|
1510 |
end;
|
1511 |
|
1512 |
constructor TIBXMLProcessor.Create;
|
1513 |
begin
|
1514 |
inherited Create;
|
1515 |
NextStatement;
|
1516 |
end;
|
1517 |
|
1518 |
destructor TIBXMLProcessor.Destroy;
|
1519 |
begin
|
1520 |
FreeMem(FBlobBuffer);
|
1521 |
inherited Destroy;
|
1522 |
end;
|
1523 |
|
1524 |
function TIBXMLProcessor.AnalyseXML(SymbolStream: TSymbolStream): string;
|
1525 |
var Symbol: TSQLSymbol;
|
1526 |
Done: boolean;
|
1527 |
XMLString: string;
|
1528 |
begin
|
1529 |
Result := '';
|
1530 |
XMLString := '';
|
1531 |
Done := false;
|
1532 |
FState := stInTag;
|
1533 |
FSymbolStream := SymbolStream;
|
1534 |
with SymbolStream do
|
1535 |
begin
|
1536 |
StartXMLTag(XMLTag);
|
1537 |
while not Done do
|
1538 |
with SymbolStream do
|
1539 |
begin
|
1540 |
Symbol := GetSymbol;
|
1541 |
|
1542 |
case Symbol of
|
1543 |
sqEOL:
|
1544 |
case FState of
|
1545 |
stQuotedAttributeValue,
|
1546 |
stTagged:
|
1547 |
XMLString += LineEnding;
|
1548 |
end;
|
1549 |
|
1550 |
' ',sqTab:
|
1551 |
case FState of
|
1552 |
stQuotedAttributeValue,
|
1553 |
stTagged:
|
1554 |
XMLString += ' ';
|
1555 |
end;
|
1556 |
|
1557 |
';':
|
1558 |
case FState of
|
1559 |
stQuotedAttributeValue,
|
1560 |
stTagged:
|
1561 |
XMLString += ';';
|
1562 |
else
|
1563 |
ShowError(sXMLError,[Symbol]);
|
1564 |
end;
|
1565 |
|
1566 |
'''':
|
1567 |
case FState of
|
1568 |
stQuotedAttributeValue,
|
1569 |
stTagged:
|
1570 |
XMLString += '''';
|
1571 |
else
|
1572 |
ShowError(sXMLError,[Symbol]);
|
1573 |
end;
|
1574 |
|
1575 |
'*':
|
1576 |
case FState of
|
1577 |
stQuotedAttributeValue,
|
1578 |
stTagged:
|
1579 |
XMLString += '*';
|
1580 |
else
|
1581 |
ShowError(sXMLError,[Symbol]);
|
1582 |
end;
|
1583 |
|
1584 |
'/':
|
1585 |
case FState of
|
1586 |
stQuotedAttributeValue,
|
1587 |
stTagged:
|
1588 |
XMLString += '/';
|
1589 |
else
|
1590 |
ShowError(sXMLError,[Symbol]);
|
1591 |
end;
|
1592 |
|
1593 |
'>':
|
1594 |
case FState of
|
1595 |
stEndTag:
|
1596 |
case XMLTag of
|
1597 |
xtBlob:
|
1598 |
begin
|
1599 |
Result := ':' + Format(ibx_blob+'%d',[FCurrentBlob]);
|
1600 |
Done := true;
|
1601 |
end;
|
1602 |
xtArray:
|
1603 |
begin
|
1604 |
Result := ':' + Format(ibx_array+'%d',[FCurrentArray]);
|
1605 |
Done := true;
|
1606 |
end;
|
1607 |
else
|
1608 |
FState := stTagged;
|
1609 |
end;
|
1610 |
|
1611 |
stInTag:
|
1612 |
begin
|
1613 |
XMLString := '';
|
1614 |
FState := stTagged;
|
1615 |
EnterTag;
|
1616 |
end;
|
1617 |
|
1618 |
stQuotedAttributeValue,
|
1619 |
stTagged:
|
1620 |
XMLString += '>';
|
1621 |
|
1622 |
else
|
1623 |
ShowError(sXMLError,[Symbol]);
|
1624 |
end;
|
1625 |
|
1626 |
sqTag:
|
1627 |
if FState = stTagged then
|
1628 |
begin
|
1629 |
FState := stInTag;
|
1630 |
StartXMLTag(XMLTag)
|
1631 |
end
|
1632 |
else
|
1633 |
ShowError(sXMLError,[Symbol]);
|
1634 |
|
1635 |
sqEndTag:
|
1636 |
if FState = stTagged then
|
1637 |
begin
|
1638 |
ProcessTagValue(XMLString);
|
1639 |
EndXMLTag(XMLTag);
|
1640 |
FState := stEndTag;
|
1641 |
end
|
1642 |
else
|
1643 |
ShowError(sXMLError,[Symbol]);
|
1644 |
|
1645 |
'=':
|
1646 |
case FState of
|
1647 |
stAttribute:
|
1648 |
FState := stAttributeValue;
|
1649 |
|
1650 |
stQuotedAttributeValue,
|
1651 |
stTagged:
|
1652 |
XMLString += '=';
|
1653 |
|
1654 |
else
|
1655 |
ShowError(sXMLError,[Symbol]);
|
1656 |
end;
|
1657 |
|
1658 |
'"':
|
1659 |
case FState of
|
1660 |
stAttributeValue:
|
1661 |
begin
|
1662 |
XMLString := '';
|
1663 |
FState := stQuotedAttributeValue;
|
1664 |
end;
|
1665 |
|
1666 |
stQuotedAttributeValue:
|
1667 |
begin
|
1668 |
ProcessAttributeValue(XMLString);
|
1669 |
FState := stInTag;
|
1670 |
end;
|
1671 |
|
1672 |
stTagged:
|
1673 |
XMLString += '"';
|
1674 |
|
1675 |
else
|
1676 |
ShowError(sXMLError,[Symbol]);
|
1677 |
end;
|
1678 |
|
1679 |
sqString:
|
1680 |
case FState of
|
1681 |
stInTag: {attribute name}
|
1682 |
begin
|
1683 |
FAttributeName := SymbolValue;
|
1684 |
FState := stAttribute;
|
1685 |
end;
|
1686 |
|
1687 |
stAttributeValue:
|
1688 |
begin
|
1689 |
ProcessAttributeValue(FString);
|
1690 |
FState := stInTag;
|
1691 |
end;
|
1692 |
|
1693 |
stQuotedAttributeValue,
|
1694 |
stTagged:
|
1695 |
XMLString += SymbolValue;
|
1696 |
|
1697 |
else
|
1698 |
ShowError(sXMLError,[Symbol]);
|
1699 |
end;
|
1700 |
else
|
1701 |
ShowError(sXMLError,[Symbol]);
|
1702 |
end
|
1703 |
end;
|
1704 |
end;
|
1705 |
end;
|
1706 |
|
1707 |
procedure TIBXMLProcessor.NextStatement;
|
1708 |
begin
|
1709 |
FXMLTagIndex := 0;
|
1710 |
SetLength(FBlobData,0);
|
1711 |
FCurrentBlob := -1;
|
1712 |
SetLength(FArrayData,0);
|
1713 |
FCurrentArray := -1;
|
1714 |
end;
|
1715 |
|
1716 |
class function TIBXMLProcessor.FormatBlob(Field: ISQLData): string;
|
1717 |
var TextOut: TStrings;
|
1718 |
begin
|
1719 |
TextOut := TStringList.Create;
|
1720 |
try
|
1721 |
TextOut.Add(Format('<blob subtype="%d">',[Field.getSubtype]));
|
1722 |
StringToHex(Field.AsString,TextOut,BlobLineLength);
|
1723 |
TextOut.Add('</blob>');
|
1724 |
Result := TextOut.Text;
|
1725 |
finally
|
1726 |
TextOut.Free;
|
1727 |
end;
|
1728 |
end;
|
1729 |
|
1730 |
class function TIBXMLProcessor.FormatArray(Database: TIBDatabase; ar: IArray
|
1731 |
): string;
|
1732 |
var index: array of integer;
|
1733 |
TextOut: TStrings;
|
1734 |
|
1735 |
procedure AddElements(dim: integer; indent:string = ' ');
|
1736 |
var i: integer;
|
1737 |
recurse: boolean;
|
1738 |
begin
|
1739 |
SetLength(index,dim+1);
|
1740 |
recurse := dim < ar.GetDimensions - 1;
|
1741 |
with ar.GetBounds[dim] do
|
1742 |
for i := LowerBound to UpperBound do
|
1743 |
begin
|
1744 |
index[dim] := i;
|
1745 |
if recurse then
|
1746 |
begin
|
1747 |
TextOut.Add(Format('%s<elt id="%d">',[indent,i]));
|
1748 |
AddElements(dim+1,indent + ' ');
|
1749 |
TextOut.Add('</elt>');
|
1750 |
end
|
1751 |
else
|
1752 |
if ((ar.GetSQLType = SQL_TEXT) or (ar.GetSQLType = SQL_VARYING)) and
|
1753 |
(ar.GetCharSetID = 1) then
|
1754 |
TextOut.Add(Format('%s<elt ix="%d">%s</elt>',[indent,i,StringToHex(ar.GetAsString(index))]))
|
1755 |
else
|
1756 |
TextOut.Add(Format('%s<elt ix="%d">%s</elt>',[indent,i,ar.GetAsString(index)]));
|
1757 |
end;
|
1758 |
end;
|
1759 |
|
1760 |
var
|
1761 |
s: string;
|
1762 |
bounds: TArrayBounds;
|
1763 |
i: integer;
|
1764 |
boundsList: string;
|
1765 |
begin
|
1766 |
TextOut := TStringList.Create;
|
1767 |
try
|
1768 |
s := Format('<array dim = "%d" sqltype = "%d" length = "%d" relation_name = "%s" column_name = "%s"',
|
1769 |
[ar.GetDimensions,ar.GetSQLType,ar.GetSize,
|
1770 |
ar.GetTableName,ar.GetColumnName]);
|
1771 |
case ar.GetSQLType of
|
1772 |
SQL_DOUBLE, SQL_FLOAT, SQL_LONG, SQL_SHORT, SQL_D_FLOAT, SQL_INT64:
|
1773 |
s += Format(' scale = "%d"',[ ar.GetScale]);
|
1774 |
SQL_TEXT,
|
1775 |
SQL_VARYING:
|
1776 |
s += Format(' charset = "%s"',[Database.Attachment.GetCharsetName(ar.GetCharSetID)]);
|
1777 |
end;
|
1778 |
bounds := ar.GetBounds;
|
1779 |
boundsList := '';
|
1780 |
for i := 0 to length(bounds) - 1 do
|
1781 |
begin
|
1782 |
if i <> 0 then boundsList += ',';
|
1783 |
boundsList += Format('%d:%d',[bounds[i].LowerBound,bounds[i].UpperBound]);
|
1784 |
end;
|
1785 |
s += Format(' bounds="%s"',[boundsList]);
|
1786 |
s += '>';
|
1787 |
TextOut.Add(s);
|
1788 |
|
1789 |
SetLength(index,0);
|
1790 |
AddElements(0);
|
1791 |
TextOut.Add('</array>');
|
1792 |
Result := TextOut.Text;
|
1793 |
finally
|
1794 |
TextOut.Free;
|
1795 |
end;
|
1796 |
end;
|
1797 |
|
1798 |
{ TInteractiveSymbolStream }
|
1799 |
|
1800 |
function TInteractiveSymbolStream.GetErrorPrefix: string;
|
1801 |
begin
|
1802 |
Result := '';
|
1803 |
end;
|
1804 |
|
1805 |
function TInteractiveSymbolStream.GetNextLine(var Line: string): boolean;
|
1806 |
begin
|
1807 |
if FNextStatement then
|
1808 |
write(FPrompt)
|
1809 |
else
|
1810 |
write(FContinuePrompt);
|
1811 |
Result := not EOF;
|
1812 |
if Result then
|
1813 |
readln(Line);
|
1814 |
end;
|
1815 |
|
1816 |
constructor TInteractiveSymbolStream.Create(aPrompt: string; aContinue: string);
|
1817 |
begin
|
1818 |
inherited Create;
|
1819 |
FPrompt := aPrompt;
|
1820 |
FContinuePrompt := aContinue;
|
1821 |
end;
|
1822 |
|
1823 |
function TInteractiveSymbolStream.GetSymbol: TSQLSymbol;
|
1824 |
begin
|
1825 |
if Terminated then
|
1826 |
Result := sqEOF
|
1827 |
else
|
1828 |
Result := inherited GetSymbol;
|
1829 |
end;
|
1830 |
|
1831 |
{ TBatchSymbolStream }
|
1832 |
|
1833 |
function TBatchSymbolStream.GetErrorPrefix: string;
|
1834 |
begin
|
1835 |
Result := Format(sOnLineError,[FLineIndex,FIndex]);
|
1836 |
end;
|
1837 |
|
1838 |
function TBatchSymbolStream.GetNextLine(var Line: string): boolean;
|
1839 |
begin
|
1840 |
Result := FLineIndex < FLines.Count;
|
1841 |
if Result then
|
1842 |
begin
|
1843 |
Line := FLines[FLineIndex];
|
1844 |
// writeln('Next Line = ',Line);
|
1845 |
Inc(FLineIndex);
|
1846 |
if assigned(OnProgressEvent) then
|
1847 |
OnProgressEvent(self,false,1);
|
1848 |
end;
|
1849 |
end;
|
1850 |
|
1851 |
constructor TBatchSymbolStream.Create;
|
1852 |
begin
|
1853 |
inherited Create;
|
1854 |
FLines := TStringList.Create;
|
1855 |
end;
|
1856 |
|
1857 |
destructor TBatchSymbolStream.Destroy;
|
1858 |
begin
|
1859 |
if assigned(FLines) then FLines.Free;
|
1860 |
inherited Destroy;
|
1861 |
end;
|
1862 |
|
1863 |
procedure TBatchSymbolStream.SetStreamSource(Lines: TStrings);
|
1864 |
begin
|
1865 |
FLineIndex := 0;
|
1866 |
FLines.Assign(Lines);
|
1867 |
if assigned(OnProgressEvent) then
|
1868 |
OnProgressEvent(self,true,FLines.Count);
|
1869 |
end;
|
1870 |
|
1871 |
procedure TBatchSymbolStream.SetStreamSource(S: TStream);
|
1872 |
begin
|
1873 |
FLineIndex := 0;
|
1874 |
FLines.LoadFromStream(S);
|
1875 |
if assigned(OnProgressEvent) then
|
1876 |
OnProgressEvent(self,true,FLines.Count);
|
1877 |
end;
|
1878 |
|
1879 |
procedure TBatchSymbolStream.SetStreamSource(FileName: string);
|
1880 |
begin
|
1881 |
FLineIndex := 0;
|
1882 |
FLines.LoadFromFile(FileName);
|
1883 |
if assigned(OnProgressEvent) then
|
1884 |
OnProgressEvent(self,true,FLines.Count);
|
1885 |
end;
|
1886 |
|
1887 |
{ TSymbolStream }
|
1888 |
|
1889 |
function TSymbolStream.GetNextSymbol(C: char): TSQLSymbol;
|
1890 |
begin
|
1891 |
Result := sqNone;
|
1892 |
if C = FTerminator then
|
1893 |
Result := sqTerminator
|
1894 |
else
|
1895 |
case C of
|
1896 |
#0..#8,#10..#31,' ':
|
1897 |
Result := ' ';
|
1898 |
|
1899 |
#9,';','"','''','/',
|
1900 |
'*','=','>','<',',':
|
1901 |
Result := C;
|
1902 |
else
|
1903 |
begin
|
1904 |
Result := sqString;
|
1905 |
FLastChar := C
|
1906 |
end
|
1907 |
end;
|
1908 |
end;
|
1909 |
|
1910 |
function TSymbolStream.FindTag(tag: string; var xmlTag: TXMLTag): boolean;
|
1911 |
var i: integer;
|
1912 |
begin
|
1913 |
Result := false;
|
1914 |
for i := 0 to Length(XMLTagDefs) - 1 do
|
1915 |
if XMLTagDefs[i].TagValue = tag then
|
1916 |
begin
|
1917 |
xmlTag := XMLTagDefs[i].XMLTag;
|
1918 |
Result := true;
|
1919 |
break;
|
1920 |
end;
|
1921 |
end;
|
1922 |
|
1923 |
constructor TSymbolStream.Create;
|
1924 |
begin
|
1925 |
inherited;
|
1926 |
FTerminator := ';';
|
1927 |
NextStatement;
|
1928 |
end;
|
1929 |
|
1930 |
procedure TSymbolStream.ShowError(msg: string; params: array of const);
|
1931 |
begin
|
1932 |
raise EIBClientError.CreateFmt(GetErrorPrefix + msg,params);
|
1933 |
end;
|
1934 |
|
1935 |
function TSymbolStream.GetSymbol: TSQLSymbol;
|
1936 |
var
|
1937 |
DelimitedText: string;
|
1938 |
CurState: (gsNone,gsInComment,gsInSingleQuotes,gsInDoubleQuotes);
|
1939 |
begin
|
1940 |
Result := sqNone;
|
1941 |
CurState := gsNone;
|
1942 |
DelimitedText := '';
|
1943 |
if FNextSymbol <> sqNone then
|
1944 |
begin
|
1945 |
Result := FNextSymbol;
|
1946 |
if Result = sqString then
|
1947 |
FString := FLastChar
|
1948 |
else
|
1949 |
FString := '';
|
1950 |
FNextSymbol := sqNone
|
1951 |
end;
|
1952 |
|
1953 |
while FNextSymbol = sqNone do {find the next symbol}
|
1954 |
begin
|
1955 |
if FIndex > Length(FLine) then
|
1956 |
begin
|
1957 |
FNextSymbol := sqEOL;
|
1958 |
FIndex := 0;
|
1959 |
end
|
1960 |
else
|
1961 |
begin
|
1962 |
if FIndex = 0 then
|
1963 |
begin
|
1964 |
if not GetNextLine(FLine) then
|
1965 |
begin
|
1966 |
Result := sqEOF;
|
1967 |
FNextSymbol := sqNone;
|
1968 |
Exit;
|
1969 |
end;
|
1970 |
FIndex := 1;
|
1971 |
FNextStatement := false;
|
1972 |
if assigned(OnNextLine) then
|
1973 |
OnNextLine(self,FLine);
|
1974 |
if CurState <> gsNone then
|
1975 |
DelimitedText += LineEnding;
|
1976 |
if Length(FLine) = 0 then
|
1977 |
continue;
|
1978 |
end;
|
1979 |
if CurState <> gsNone then
|
1980 |
DelimitedText += FLine[FIndex];
|
1981 |
FNextSymbol := GetNextSymbol(FLine[FIndex]);
|
1982 |
Inc(FIndex);
|
1983 |
end;
|
1984 |
|
1985 |
case CurState of
|
1986 |
gsNone:
|
1987 |
begin
|
1988 |
{combine if possible}
|
1989 |
case Result of
|
1990 |
sqNone:
|
1991 |
begin
|
1992 |
Result := FNextSymbol;
|
1993 |
if FNextSymbol = sqString then
|
1994 |
FString := FLastChar;
|
1995 |
FNextSymbol := sqNone
|
1996 |
end;
|
1997 |
|
1998 |
'/':
|
1999 |
if FXMLMode > 0 then
|
2000 |
break
|
2001 |
else
|
2002 |
if FNextSymbol = '*' then
|
2003 |
begin
|
2004 |
CurState := gsInComment;
|
2005 |
DelimitedText := '/*';
|
2006 |
Result := sqNone;
|
2007 |
FNextSymbol := sqNone
|
2008 |
end
|
2009 |
else
|
2010 |
if FNextSymbol = '/' then
|
2011 |
begin
|
2012 |
FString := '/*' + system.copy(FLine,FIndex,length(FLine)- FIndex + 1) + ' */';
|
2013 |
Result := sqCommentLine;
|
2014 |
FIndex := 0;
|
2015 |
FNextSymbol := sqNone
|
2016 |
end;
|
2017 |
|
2018 |
'<':
|
2019 |
if (FXMLMode > 0) and (FNextSymbol = '/') then
|
2020 |
begin
|
2021 |
Result := sqEndTag;
|
2022 |
FString := '';
|
2023 |
FNextSymbol := sqNone
|
2024 |
end
|
2025 |
else
|
2026 |
if FNextSymbol = sqString then
|
2027 |
begin
|
2028 |
Result := sqTag;
|
2029 |
FString := FLastChar;
|
2030 |
FNextSymbol := sqNone
|
2031 |
end;
|
2032 |
|
2033 |
'''':
|
2034 |
if FXMLMode > 0 then
|
2035 |
break
|
2036 |
else
|
2037 |
if FNextSymbol = '''' then
|
2038 |
begin
|
2039 |
Result := sqQuotedString;
|
2040 |
FString := '''''';
|
2041 |
FNextSymbol := sqNone
|
2042 |
end
|
2043 |
else
|
2044 |
begin
|
2045 |
CurState := gsInSingleQuotes;
|
2046 |
DelimitedText := '''';
|
2047 |
if FNextSymbol = sqEOL then
|
2048 |
DelimitedText += LineEnding
|
2049 |
else
|
2050 |
DelimitedText += FLine[FIndex-1];
|
2051 |
Result := sqNone;
|
2052 |
FNextSymbol := sqNone
|
2053 |
end;
|
2054 |
|
2055 |
'"':
|
2056 |
if FXMLMode > 0 then
|
2057 |
break
|
2058 |
else
|
2059 |
begin
|
2060 |
CurState := gsInDoubleQuotes;
|
2061 |
DelimitedText := '"';
|
2062 |
if FNextSymbol = sqEOL then
|
2063 |
DelimitedText += LineEnding
|
2064 |
else
|
2065 |
DelimitedText += FLine[FIndex-1];
|
2066 |
Result := sqNone;
|
2067 |
FNextSymbol := sqNone
|
2068 |
end;
|
2069 |
|
2070 |
sqTag,
|
2071 |
sqEndTag,
|
2072 |
sqString:
|
2073 |
if FNextSymbol = sqString then
|
2074 |
begin
|
2075 |
FString := FString + FLastChar;
|
2076 |
FNextSymbol := sqNone
|
2077 |
end;
|
2078 |
end
|
2079 |
end;
|
2080 |
|
2081 |
{Check for state exit condition}
|
2082 |
gsInSingleQuotes:
|
2083 |
if Result = '''' then
|
2084 |
begin
|
2085 |
CurState := gsNone;
|
2086 |
if FNextSymbol = sqEOL then
|
2087 |
FString := DelimitedText
|
2088 |
else
|
2089 |
FString := system.copy(DelimitedText,1,Length(DelimitedText)-1);
|
2090 |
Result := sqQuotedString;
|
2091 |
end;
|
2092 |
|
2093 |
gsInDoubleQuotes:
|
2094 |
if Result = '"' then
|
2095 |
begin
|
2096 |
CurState := gsNone;
|
2097 |
if FNextSymbol = sqEOL then
|
2098 |
FString := DelimitedText
|
2099 |
else
|
2100 |
FString := system.copy(DelimitedText,1,Length(DelimitedText)-1);
|
2101 |
Result := sqDoubleQuotedString;
|
2102 |
end;
|
2103 |
|
2104 |
gsInComment:
|
2105 |
if (Result = '*') and (FNextSymbol = '/') then
|
2106 |
begin
|
2107 |
CurState := gsNone;
|
2108 |
FString := DelimitedText;
|
2109 |
Result := sqComment;
|
2110 |
FNextSymbol := sqNone
|
2111 |
end;
|
2112 |
|
2113 |
end;
|
2114 |
|
2115 |
if (CurState <> gsNone) and (FNextSymbol <> sqNone) then
|
2116 |
begin
|
2117 |
Result := FNextSymbol;
|
2118 |
FNextSymbol := sqNone;
|
2119 |
end;
|
2120 |
end;
|
2121 |
|
2122 |
if (Result = sqTag) and (FNextSymbol <> sqNone) then
|
2123 |
begin
|
2124 |
if FindTag(FString,FXMLTag) then
|
2125 |
Inc(FXMLMode)
|
2126 |
else
|
2127 |
Result := sqString;
|
2128 |
end
|
2129 |
else
|
2130 |
if (Result = sqEndTag) and (FNextSymbol <> sqNone) then
|
2131 |
begin
|
2132 |
if FindTag(FString,FXMLTag) then
|
2133 |
Dec(FXMLMode)
|
2134 |
else
|
2135 |
Result := sqString;
|
2136 |
end;
|
2137 |
|
2138 |
if (FXMLMode = 0) and (Result = sqString) and (FString <> '') then
|
2139 |
begin
|
2140 |
if CompareText(FString,'begin') = 0 then
|
2141 |
Result := sqBegin
|
2142 |
else
|
2143 |
if CompareText(FString,'end') = 0 then
|
2144 |
Result := sqEnd
|
2145 |
else
|
2146 |
if CompareText(FString,'declare') = 0 then
|
2147 |
Result := sqDeclare
|
2148 |
else
|
2149 |
if CompareText(FString,'case') = 0 then
|
2150 |
Result := sqCase
|
2151 |
end;
|
2152 |
// writeln(Result,',',FString);
|
2153 |
end;
|
2154 |
|
2155 |
procedure TSymbolStream.NextStatement;
|
2156 |
begin
|
2157 |
FXMLTag := xtNone;
|
2158 |
FNextStatement := true;
|
2159 |
end;
|
2160 |
|
2161 |
end.
|
2162 |
|