~drizzle-trunk/drizzle/development

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
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
/* 
  Copyright (C) 2010 Vijay Samuel
  Copyright (C) 2010 Brian Aker
  Copyright (C) 2000-2006 MySQL AB
  Copyright (C) 2008-2009 Sun Microsystems, Inc

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; version 2 of the License.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA */

#define IMPORT_VERSION "4.0"

#include "client_priv.h"
#include <string>
#include <sstream>
#include <iostream>
#include <fstream>
#include <boost/program_options.hpp>
#include <pthread.h>

/* Added this for string translation. */
#include <drizzled/gettext.h>
#include <drizzled/configmake.h>

namespace po= boost::program_options;
using namespace std;
using namespace drizzled;

extern "C" void * worker_thread(void *arg);

int exitcode= 0;

const char *program_name= "drizzlesimport";

/* Global Thread counter */
uint32_t counter;
pthread_mutex_t counter_mutex;
pthread_cond_t count_threshhold;

static void db_error(drizzle_con_st *con, drizzle_result_st *result,
                     drizzle_return_t ret, char *table);
static char *field_escape(char *to,const char *from,uint32_t length);
static char *add_load_option(char *ptr,const char *object,
           const char *statement);

static bool verbose= false, ignore_errors= false,
            opt_delete= false, opt_replace= false, silent= false,
            ignore_unique= false, opt_low_priority= false,
            use_drizzle_protocol= false, opt_local_file;

static uint32_t opt_use_threads;
static uint32_t opt_drizzle_port= 0;
static int64_t opt_ignore_lines= -1;

std::string opt_columns,
  opt_enclosed,
  escaped,
  password,
  current_db,
  lines_terminated,
  current_user,
  opt_password,
  enclosed,  
  current_host,
  fields_terminated,
  opt_protocol;


static int get_options(void)
{

  if (! enclosed.empty() && ! opt_enclosed.empty())
  {
    fprintf(stderr, "You can't use ..enclosed.. and ..optionally-enclosed.. at the same time.\n");
    return(1);
  }
  if (opt_replace && ignore_unique)
  {
    fprintf(stderr, "You can't use --ignore_unique (-i) and --replace (-r) at the same time.\n");
    return(1);
  }

  if (tty_password)
    opt_password=client_get_tty_password(NULL);
  return(0);
}



static int write_to_table(char *filename, drizzle_con_st *con)
{
  char tablename[FN_REFLEN], hard_path[FN_REFLEN],
       sql_statement[FN_REFLEN*16+256], *end;
  drizzle_result_st result;
  drizzle_return_t ret;

  internal::fn_format(tablename, filename, "", "", 1 | 2); /* removes path & ext. */
  if (not opt_local_file)
    strcpy(hard_path,filename);
  else
    internal::my_load_path(hard_path, filename, NULL); /* filename includes the path */

  if (opt_delete)
  {
    if (verbose)
      fprintf(stdout, "Deleting the old data from table %s\n", tablename);
#ifdef HAVE_SNPRINTF
    snprintf(sql_statement, sizeof(sql_statement), "DELETE FROM %s", tablename);
#else
    snprintf(sql_statement, sizeof(sql_statement), "DELETE FROM %s", tablename);
#endif
    if (drizzle_query_str(con, &result, sql_statement, &ret) == NULL ||
        ret != DRIZZLE_RETURN_OK)
    {
      db_error(con, &result, ret, tablename);
      return(1);
    }
    drizzle_result_free(&result);
  }
  if (verbose)
  {
    if (opt_local_file)
      fprintf(stdout, "Loading data from LOCAL file: %s into %s\n",
        hard_path, tablename);
    else
      fprintf(stdout, "Loading data from SERVER file: %s into %s\n",
        hard_path, tablename);
  }
  snprintf(sql_statement, sizeof(sql_statement), "LOAD DATA %s %s INFILE '%s'",
    opt_low_priority ? "LOW_PRIORITY" : "",
    opt_local_file ? "LOCAL" : "", hard_path);
  end= strchr(sql_statement, '\0');
  if (opt_replace)
    end= strcpy(end, " REPLACE")+8;
  if (ignore_unique)
    end= strcpy(end, " IGNORE")+7;

  end+= sprintf(end, " INTO TABLE %s", tablename);

  if (! fields_terminated.empty() || ! enclosed.empty() || ! opt_enclosed.empty() || ! escaped.empty())
      end= strcpy(end, " FIELDS")+7;
  end= add_load_option(end, (char *)fields_terminated.c_str(), " TERMINATED BY");
  end= add_load_option(end, (char *)enclosed.c_str(), " ENCLOSED BY");
  end= add_load_option(end, (char *)opt_enclosed.c_str(),
           " OPTIONALLY ENCLOSED BY");
  end= add_load_option(end, (char *)escaped.c_str(), " ESCAPED BY");
  end= add_load_option(end, (char *)lines_terminated.c_str(), " LINES TERMINATED BY");
  if (opt_ignore_lines >= 0)
  {
    end= strcpy(end, " IGNORE ")+8;
    ostringstream buffer;
    buffer << opt_ignore_lines;
    end= strcpy(end, buffer.str().c_str())+ buffer.str().size();
    end= strcpy(end, " LINES")+6;
  }
  if (! opt_columns.empty())
  {
    end= strcpy(end, " (")+2;
    end= strcpy(end, (char *)opt_columns.c_str()+opt_columns.length());
    end= strcpy(end, ")")+1;
  }
  *end= '\0';

  if (drizzle_query_str(con, &result, sql_statement, &ret) == NULL ||
      ret != DRIZZLE_RETURN_OK)
  {
    db_error(con, &result, ret, tablename);
    return(1);
  }
  if (!silent)
  {
    if (strcmp(drizzle_result_info(&result), ""))
    {
      fprintf(stdout, "%s.%s: %s\n", current_db.c_str(), tablename,
        drizzle_result_info(&result));
    }
  }
  drizzle_result_free(&result);
  return(0);
}


static drizzle_con_st *db_connect(const string host, const string database,
                                  const string user, const string passwd)
{
  drizzle_st *drizzle;
  drizzle_con_st *con;
  drizzle_return_t ret;

  if (verbose)
    fprintf(stdout, "Connecting to %s, using protocol %s...\n", ! host.empty() ? host.c_str() : "localhost", opt_protocol.c_str());
  if (!(drizzle= drizzle_create(NULL)))
    return 0;
  if (!(con= drizzle_con_add_tcp(drizzle,NULL,(char *)host.c_str(),opt_drizzle_port,(char *)user.c_str(),(char *)passwd.c_str(),
                                 (char *)database.c_str(), use_drizzle_protocol ? DRIZZLE_CON_EXPERIMENTAL : DRIZZLE_CON_MYSQL)))
  {
    return 0;
  }

  if ((ret= drizzle_con_connect(con)) != DRIZZLE_RETURN_OK)
  {
    ignore_errors=0;    /* NO RETURN FROM db_error */
    db_error(con, NULL, ret, NULL);
  }

  if (verbose)
    fprintf(stdout, "Selecting database %s\n", database.c_str());

  return con;
}



static void db_disconnect(const string host, drizzle_con_st *con)
{
  if (verbose)
    fprintf(stdout, "Disconnecting from %s\n", ! host.empty() ? host.c_str() : "localhost");
  drizzle_free(drizzle_con_drizzle(con));
}



static void safe_exit(int error, drizzle_con_st *con)
{
  if (ignore_errors)
    return;
  if (con)
    drizzle_free(drizzle_con_drizzle(con));
  exit(error);
}



static void db_error(drizzle_con_st *con, drizzle_result_st *result,
                     drizzle_return_t ret, char *table)
{
  if (ret == DRIZZLE_RETURN_ERROR_CODE)
  {
    fprintf(stdout, "Error: %d, %s%s%s",
            drizzle_result_error_code(result),
            drizzle_result_error(result),
            table ? ", when using table: " : "", table ? table : "");
    drizzle_result_free(result);
  }
  else
  {
    fprintf(stdout, "Error: %d, %s%s%s", ret, drizzle_con_error(con),
            table ? ", when using table: " : "", table ? table : "");
  }

  safe_exit(1, con);
}


static char *add_load_option(char *ptr, const char *object,
           const char *statement)
{
  if (object)
  {
    /* Don't escape hex constants */
    if (object[0] == '0' && (object[1] == 'x' || object[1] == 'X'))
      ptr+= sprintf(ptr, " %s %s", statement, object);
    else
    {
      /* char constant; escape */
      ptr+= sprintf(ptr, " %s '", statement); 
      ptr= field_escape(ptr,object,(uint32_t) strlen(object));
      *ptr++= '\'';
    }
  }
  return ptr;
}

/*
** Allow the user to specify field terminator strings like:
** "'", "\", "\\" (escaped backslash), "\t" (tab), "\n" (newline)
** This is done by doubleing ' and add a end -\ if needed to avoid
** syntax errors from the SQL parser.
*/

static char *field_escape(char *to,const char *from,uint32_t length)
{
  const char *end;
  uint32_t end_backslashes=0;

  for (end= from+length; from != end; from++)
  {
    *to++= *from;
    if (*from == '\\')
      end_backslashes^=1;    /* find odd number of backslashes */
    else
    {
      if (*from == '\'' && !end_backslashes)
  *to++= *from;      /* We want a dublicate of "'" for DRIZZLE */
      end_backslashes=0;
    }
  }
  /* Add missing backslashes if user has specified odd number of backs.*/
  if (end_backslashes)
    *to++= '\\';
  return to;
}

void * worker_thread(void *arg)
{
  int error;
  char *raw_table_name= (char *)arg;
  drizzle_con_st *con;

  if (!(con= db_connect(current_host,current_db,current_user,opt_password)))
  {
    return 0;
  }

  /*
    We are not currently catching the error here.
  */
  if ((error= write_to_table(raw_table_name, con)))
  {
    if (exitcode == 0)
    {
      exitcode= error;
    }
  }

  if (con)
  {
    db_disconnect(current_host, con);
  }

  pthread_mutex_lock(&counter_mutex);
  counter--;
  pthread_cond_signal(&count_threshhold);
  pthread_mutex_unlock(&counter_mutex);

  return 0;
}


int main(int argc, char **argv)
{
try
{
  int error=0;

  po::options_description commandline_options("Options used only in command line");
  commandline_options.add_options()

  ("debug,#", po::value<string>(),
  "Output debug log. Often this is 'd:t:o,filename'.")
  ("delete,d", po::value<bool>(&opt_delete)->default_value(false)->zero_tokens(),
  "First delete all rows from table.")
  ("help,?", "Displays this help and exits.")
  ("ignore,i", po::value<bool>(&ignore_unique)->default_value(false)->zero_tokens(),
  "If duplicate unique key was found, keep old row.")
  ("low-priority", po::value<bool>(&opt_low_priority)->default_value(false)->zero_tokens(),
  "Use LOW_PRIORITY when updating the table.")
  ("replace,r", po::value<bool>(&opt_replace)->default_value(false)->zero_tokens(),
  "If duplicate unique key was found, replace old row.")
  ("verbose,v", po::value<bool>(&verbose)->default_value(false)->zero_tokens(),
  "Print info about the various stages.")
  ("version,V", "Output version information and exit.")
  ;

  po::options_description import_options("Options specific to the drizzleimport");
  import_options.add_options()
  ("columns,C", po::value<string>(&opt_columns)->default_value(""),
  "Use only these columns to import the data to. Give the column names in a comma separated list. This is same as giving columns to LOAD DATA INFILE.")
  ("fields-terminated-by", po::value<string>(&fields_terminated)->default_value(""),
  "Fields in the textfile are terminated by ...")
  ("fields-enclosed-by", po::value<string>(&enclosed)->default_value(""),
  "Fields in the importfile are enclosed by ...")
  ("fields-optionally-enclosed-by", po::value<string>(&opt_enclosed)->default_value(""),
  "Fields in the i.file are opt. enclosed by ...")
  ("fields-escaped-by", po::value<string>(&escaped)->default_value(""),
  "Fields in the i.file are escaped by ...")
  ("force,f", po::value<bool>(&ignore_errors)->default_value(false)->zero_tokens(),
  "Continue even if we get an sql-error.")
  ("ignore-lines", po::value<int64_t>(&opt_ignore_lines)->default_value(0),
  "Ignore first n lines of data infile.")
  ("lines-terminated-by", po::value<string>(&lines_terminated)->default_value(""),
  "Lines in the i.file are terminated by ...")
  ("local,L", po::value<bool>(&opt_local_file)->default_value(false)->zero_tokens(),
  "Read all files through the client.")
  ("silent,s", po::value<bool>(&silent)->default_value(false)->zero_tokens(),
  "Be more silent.")
  ("use-threads", po::value<uint32_t>(&opt_use_threads)->default_value(4),
  "Load files in parallel. The argument is the number of threads to use for loading data (default is 4.")
  ;

  po::options_description client_options("Options specific to the client");
  client_options.add_options()
  ("host,h", po::value<string>(&current_host)->default_value("localhost"),
  "Connect to host.")
  ("password,P", po::value<string>(&password),
  "Password to use when connecting to server. If password is not given it's asked from the tty." )
  ("port,p", po::value<uint32_t>(&opt_drizzle_port)->default_value(0),
  "Port number to use for connection") 
  ("protocol", po::value<string>(&opt_protocol)->default_value("mysql"),
  "The protocol of connection (mysql or drizzle).")
  ("user,u", po::value<string>(&current_user)->default_value(""),
  "User for login if not current user.")
  ;

  po::options_description long_options("Allowed Options");
  long_options.add(commandline_options).add(import_options).add(client_options);

  std::string system_config_dir_import(SYSCONFDIR); 
  system_config_dir_import.append("/drizzle/drizzleimport.cnf");

  std::string system_config_dir_client(SYSCONFDIR); 
  system_config_dir_client.append("/drizzle/client.cnf");
  
  std::string user_config_dir((getenv("XDG_CONFIG_HOME")? getenv("XDG_CONFIG_HOME"):"~/.config"));

  if (user_config_dir.compare(0, 2, "~/") == 0)
  {
    char *homedir;
    homedir= getenv("HOME");
    if (homedir != NULL)
      user_config_dir.replace(0, 1, homedir);
  }

  po::variables_map vm;

  // Disable allow_guessing
  int style = po::command_line_style::default_style & ~po::command_line_style::allow_guessing;

  po::store(po::command_line_parser(argc, argv).options(long_options).
            style(style).extra_parser(parse_password_arg).run(), vm);

  std::string user_config_dir_import(user_config_dir);
  user_config_dir_import.append("/drizzle/drizzleimport.cnf"); 

  std::string user_config_dir_client(user_config_dir);
  user_config_dir_client.append("/drizzle/client.cnf");

  ifstream user_import_ifs(user_config_dir_import.c_str());
  po::store(parse_config_file(user_import_ifs, import_options), vm);

  ifstream user_client_ifs(user_config_dir_client.c_str());
  po::store(parse_config_file(user_client_ifs, client_options), vm);

  ifstream system_import_ifs(system_config_dir_import.c_str());
  store(parse_config_file(system_import_ifs, import_options), vm);
 
  ifstream system_client_ifs(system_config_dir_client.c_str());
  po::store(parse_config_file(system_client_ifs, client_options), vm);

  po::notify(vm);
  if (vm.count("protocol"))
  {
    std::transform(opt_protocol.begin(), opt_protocol.end(),
      opt_protocol.begin(), ::tolower);

    if (not opt_protocol.compare("mysql"))
      use_drizzle_protocol=false;
    else if (not opt_protocol.compare("drizzle"))
      use_drizzle_protocol=true;
    else
    {
      cout << _("Error: Unknown protocol") << " '" << opt_protocol << "'" << endl;
      exit(-1);
    }
  }

  if (vm.count("port"))
  {
    
    /* If the port number is > 65535 it is not a valid port
       This also helps with potential data loss casting unsigned long to a
       uint32_t. */
    if (opt_drizzle_port > 65535)
    {
      fprintf(stderr, _("Value supplied for port is not valid.\n"));
      exit(EXIT_ARGUMENT_INVALID);
    }
  }

  if( vm.count("password") )
  {
    if (!opt_password.empty())
      opt_password.erase();
    if (password == PASSWORD_SENTINEL)
    {
      opt_password= "";
    }
    else
    {
      opt_password= password;
      tty_password= false;
    }
  }
  else
  {
      tty_password= true;
  }


  if (vm.count("version"))
  {
    printf("%s  Ver %s Distrib %s, for %s-%s (%s)\n", program_name,
    IMPORT_VERSION, drizzle_version(),HOST_VENDOR,HOST_OS,HOST_CPU);
  }
  
  if (vm.count("help") || argc < 2)
  {
    printf("%s  Ver %s Distrib %s, for %s-%s (%s)\n", program_name,
    IMPORT_VERSION, drizzle_version(),HOST_VENDOR,HOST_OS,HOST_CPU);
    puts("This software comes with ABSOLUTELY NO WARRANTY. This is free software,\nand you are welcome to modify and redistribute it under the GPL license\n");
    printf("\
    Loads tables from text files in various formats.  The base name of the\n\
    text file must be the name of the table that should be used.\n\
    If one uses sockets to connect to the Drizzle server, the server will open and\n\
    read the text file directly. In other cases the client will open the text\n\
    file. The SQL command 'LOAD DATA INFILE' is used to import the rows.\n");

    printf("\nUsage: %s [OPTIONS] database textfile...", program_name);
    cout<<long_options;
    exit(0);
  }


  if (get_options())
  {
    return(1);
  }
  
  current_db= (*argv)++;
  argc--;

  if (opt_use_threads)
  {
    pthread_t mainthread;            /* Thread descriptor */
    pthread_attr_t attr;          /* Thread attributes */
    pthread_attr_init(&attr);
    pthread_attr_setdetachstate(&attr,
                                PTHREAD_CREATE_DETACHED);

    pthread_mutex_init(&counter_mutex, NULL);
    pthread_cond_init(&count_threshhold, NULL);

    for (counter= 0; *argv != NULL; argv++) /* Loop through tables */
    {
      pthread_mutex_lock(&counter_mutex);
      while (counter == opt_use_threads)
      {
        struct timespec abstime;

        set_timespec(abstime, 3);
        pthread_cond_timedwait(&count_threshhold, &counter_mutex, &abstime);
      }
      /* Before exiting the lock we set ourselves up for the next thread */
      counter++;
      pthread_mutex_unlock(&counter_mutex);
      /* now create the thread */
      if (pthread_create(&mainthread, &attr, worker_thread,
                         (void *)*argv) != 0)
      {
        pthread_mutex_lock(&counter_mutex);
        counter--;
        pthread_mutex_unlock(&counter_mutex);
        fprintf(stderr,"%s: Could not create thread\n", program_name);
      }
    }

    /*
      We loop until we know that all children have cleaned up.
    */
    pthread_mutex_lock(&counter_mutex);
    while (counter)
    {
      struct timespec abstime;

      set_timespec(abstime, 3);
      pthread_cond_timedwait(&count_threshhold, &counter_mutex, &abstime);
    }
    pthread_mutex_unlock(&counter_mutex);
    pthread_mutex_destroy(&counter_mutex);
    pthread_cond_destroy(&count_threshhold);
    pthread_attr_destroy(&attr);
  }
  else
  {
    drizzle_con_st *con;

    if (!(con= db_connect(current_host,current_db,current_user,opt_password)))
    {
      return(1);
    }

    for (; *argv != NULL; argv++)
      if ((error= write_to_table(*argv, con)))
        if (exitcode == 0)
          exitcode= error;
    db_disconnect(current_host, con);
  }
  opt_password.empty();
}
  catch(exception &err)
  {
    cerr<<err.what()<<endl;
  }
  return(exitcode);
}