summaryrefslogtreecommitdiffstats
path: root/servers/slapd/back-sql/rdbms_depend/timesten/dnreverse/dnreverse.cpp
blob: 73ef0487d114fec336bc7f7b0ae0945847ebe38e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
// Copyright 1997-2021 The OpenLDAP Foundation, All Rights Reserved.
//  COPYING RESTRICTIONS APPLY, see COPYRIGHT file

// (c) Copyright 1999-2001 TimesTen Performance Software. All rights reserved.

//// Note: This file was contributed by Sam Drake of TimesTen Performance
////       Software for use and redistribution as an intregal part of
////       OpenLDAP Software.  -Kdz

#include <stdlib.h>

#include <TTConnectionPool.h>
#include <TTConnection.h>
#include <TTCmd.h>
#include <TTXla.h>

#include <signal.h>

TTConnectionPool pool;
TTXlaConnection  conn;
TTConnection     conn2;
TTCmd            assignDn_ru;
TTCmd            getNullDNs;

//----------------------------------------------------------------------
// This class contains all the logic to be implemented whenever
// the SCOTT.MYDATA table is changed.  This is the table that is
// created by "sample.cpp", one of the other TTClasses demos.
// That application should be executed before this one in order to 
// create and populate the table.
//----------------------------------------------------------------------

class LDAPEntriesHandler: public TTXlaTableHandler {
private:
  // Definition of the columns in the table
  int Id;
  int Dn;
  int Oc_map_id;
  int Parent;
  int Keyval;
  int Dn_ru;

protected:

public:
  LDAPEntriesHandler(TTXlaConnection& conn, const char* ownerP, const char* nameP);
  ~LDAPEntriesHandler();

  virtual void HandleDelete(ttXlaUpdateDesc_t*);
  virtual void HandleInsert(ttXlaUpdateDesc_t*);
  virtual void HandleUpdate(ttXlaUpdateDesc_t*);

  static void ReverseAndUpper(char* dnP, int id, bool commit=true);

};

LDAPEntriesHandler::LDAPEntriesHandler(TTXlaConnection& conn,
				       const char* ownerP, const char* nameP) :
  TTXlaTableHandler(conn, ownerP, nameP)
{
  Id = Dn = Oc_map_id = Parent = Keyval = Dn_ru = -1;

  // We are looking for several particular named columns.  We need to get
  // the ordinal position of the columns by name for later use.

  Id = tbl.getColNumber("ID");
  if (Id < 0) {
    cerr << "target table has no 'ID' column" << endl;
    exit(1);
  }
  Dn = tbl.getColNumber("DN");
  if (Dn < 0) {
    cerr << "target table has no 'DN' column" << endl;
    exit(1);
  }
  Oc_map_id = tbl.getColNumber("OC_MAP_ID");
  if (Oc_map_id < 0) {
    cerr << "target table has no 'OC_MAP_ID' column" << endl;
    exit(1);
  }
  Parent = tbl.getColNumber("PARENT");
  if (Parent < 0) {
    cerr << "target table has no 'PARENT' column" << endl;
    exit(1);
  }
  Keyval = tbl.getColNumber("KEYVAL");
  if (Keyval < 0) {
    cerr << "target table has no 'KEYVAL' column" << endl;
    exit(1);
  }
  Dn_ru = tbl.getColNumber("DN_RU");
  if (Dn_ru < 0) {
    cerr << "target table has no 'DN_RU' column" << endl;
    exit(1);
  }

}

LDAPEntriesHandler::~LDAPEntriesHandler()
{

}

void LDAPEntriesHandler::ReverseAndUpper(char* dnP, int id, bool commit)
{
  TTStatus stat;
  char dn_rn[512];
  int i;
  int j;

  // Reverse and upper case the given DN

  for ((j=0, i = strlen(dnP)-1); i > -1; (j++, i--)) {
    dn_rn[j] = toupper(*(dnP+i));
  }
  dn_rn[j] = '\0';


  // Update the database

  try {
    assignDn_ru.setParam(1, (char*) &dn_rn[0]);
    assignDn_ru.setParam(2, id);
    assignDn_ru.Execute(stat);
  }
  catch (TTStatus stat) {
    cerr << "Error updating id " << id << " ('" << dnP << "' to '" 
	 << dn_rn << "'): " << stat;
    exit(1);
  }

  // Commit the transaction
  
  if (commit) {
    try {
      conn2.Commit(stat);
    }
    catch (TTStatus stat) {
      cerr << "Error committing update: " << stat;
      exit(1);
    }
  }

}



void LDAPEntriesHandler::HandleInsert(ttXlaUpdateDesc_t* p)
{
  char* dnP; 
  int   id;

  row.Get(Dn, &dnP);
  cerr << "DN '" << dnP << "': Inserted ";
  row.Get(Id, &id);

  ReverseAndUpper(dnP, id);

}

void LDAPEntriesHandler::HandleUpdate(ttXlaUpdateDesc_t* p)
{    
  char* newDnP; 
  char* oldDnP;
  char  oDn[512];
  int   id;

  // row is 'old'; row2 is 'new'
  row.Get(Dn, &oldDnP);
  strcpy(oDn, oldDnP);
  row.Get(Id, &id);
  row2.Get(Dn, &newDnP);
  
  cerr << "old DN '" << oDn << "' / new DN '" << newDnP << "' : Updated ";

  if (strcmp(oDn, newDnP) != 0) {	
    // The DN field changed, update it
    cerr << "(new DN: '" << newDnP << "')";
    ReverseAndUpper(newDnP, id);
  }
  else {
    // The DN field did NOT change, leave it alone
  }

  cerr << endl;

}

void LDAPEntriesHandler::HandleDelete(ttXlaUpdateDesc_t* p)
{    
  char* dnP; 

  row.Get(Dn, &dnP);
  cerr << "DN '" << dnP << "': Deleted ";
}




//----------------------------------------------------------------------

int pleaseStop = 0;

extern "C" {
  void
  onintr(int sig)
  {
    pleaseStop = 1;
    cerr << "Stopping...\n";
  }
};

//----------------------------------------------------------------------

int 
main(int argc, char* argv[])
{

  char* ownerP;

  TTXlaTableList list(&conn);	// List of tables to monitor

  // Handlers, one for each table we want to monitor

  LDAPEntriesHandler* sampP = NULL;

  // Misc stuff

  TTStatus stat;

  ttXlaUpdateDesc_t ** arry;

  int records;

  SQLUBIGINT  oldsize;
  int j;

  if (argc < 2) {
    cerr << "syntax: " << argv[0] << " <username>" << endl;
    exit(3);
  }

  ownerP = argv[1];

  signal(SIGINT, onintr);    /* signal for CTRL-C */
#ifdef _WIN32
  signal(SIGBREAK, onintr);  /* signal for CTRL-BREAK */
#endif

  // Before we do anything related to XLA, first we connect
  // to the database.  This is the connection we will use
  // to perform non-XLA operations on the tables.

  try {
    cerr << "Connecting..." << endl;

    conn2.Connect("DSN=ldap_tt", stat);
  }
  catch (TTStatus stat) {
    cerr << "Error connecting to TimesTen: " << stat;
    exit(1);
  }

  try {
    assignDn_ru.Prepare(&conn2,
			"update ldap_entries set dn_ru=? where id=?", 
			"", stat);
    getNullDNs.Prepare(&conn2,
		       "select dn, id from ldap_entries "
			"where dn_ru is null "
			"for update", 
		       "", stat);
    conn2.Commit(stat);
  }
  catch (TTStatus stat) {
    cerr << "Error preparing update: " << stat;
    exit(1);
  }

  // If there are any entries with a NULL reversed/upper cased DN, 
  // fix them now.

  try {
    cerr << "Fixing NULL reversed DNs" << endl;
    getNullDNs.Execute(stat);
    for (int k = 0;; k++) {
      getNullDNs.FetchNext(stat);
      if (stat.rc == SQL_NO_DATA_FOUND) break;
      char* dnP;
      int   id;
      getNullDNs.getColumn(1, &dnP);
      getNullDNs.getColumn(2, &id);
      // cerr << "Id " << id << ", Dn '" << dnP << "'" << endl;
      LDAPEntriesHandler::ReverseAndUpper(dnP, id, false);
      if (k % 1000 == 0) 
        cerr << ".";
    }
    getNullDNs.Close(stat);
    conn2.Commit(stat);
  }
  catch (TTStatus stat) {
    cerr << "Error updating NULL rows: " << stat;
    exit(1);
  }


  // Go ahead and start up the change monitoring application

  cerr << "Starting change monitoring..." << endl;
  try {
    conn.Connect("DSN=ldap_tt", stat);
  }
  catch (TTStatus stat) {
    cerr << "Error connecting to TimesTen: " << stat;
    exit(1);
  }

  /* set and configure size of buffer */
  conn.setXlaBufferSize((SQLUBIGINT) 1000000, &oldsize, stat);
  if (stat.rc) {
    cerr << "Error setting buffer size " << stat << endl;
    exit(1);
  }

  // Make a handler to process changes to the MYDATA table and
  // add the handler to the list of all handlers

  sampP = new LDAPEntriesHandler(conn, ownerP, "ldap_entries");
  if (!sampP) {
    cerr << "Could not create LDAPEntriesHandler" << endl;
    exit(3);
  }
  list.add(sampP);

  // Enable transaction logging for the table we're interested in 

  sampP->EnableTracking(stat);

  // Get updates.  Dispatch them to the appropriate handler.
  // This loop will handle updates to all the tables.

  while (pleaseStop == 0) {
    conn.fetchUpdates(&arry, 1000, &records, stat);
    if (stat.rc) {
      cerr << "Error fetching updates" << stat << endl;
      exit(1);
    }

    // Interpret the updates

    for(j=0;j < records;j++){
      ttXlaUpdateDesc_t *p;

      p = arry[j];

      list.HandleChange(p, stat);

    } // end for each record fetched
    
    if (records) {
      cerr << "Processed " << records << " records\n";
    }

    if (records == 0) {
#ifdef _WIN32
      Sleep(250);
#else
      struct timeval t;
      t.tv_sec = 0;
      t.tv_usec = 250000; // .25 seconds
      select(0, NULL, NULL, NULL, &t);
#endif
    }
  } // end while pleasestop == 0
  

  // When we get to here, the program is exiting.

  list.del(sampP);		// Take the table out of the list 
  delete sampP;

  conn.setXlaBufferSize(oldsize, NULL, stat);

  return 0;

}