src/tools/cachetable.cxx

   1 /***************************************************************************
   2  *   Copyright (C) 2007 by www.databasecache.com                           *
   3  *   Contact: praba_tuty@databasecache.com                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  ***************************************************************************/
  16 #include <CSql.h>
  17 #include <CacheTableLoader.h>
  18
  19 void printUsage()
  20 {
  21    printf("Usage: cachetable [-U username] [-P passwd] -t tablename \n"
  22           "       [-R] [-s] [-r]\n");
  23    printf("       username -> username to connect with csql.\n");
  24    printf("       passwd -> password for the above username to connect with csql.\n");
  25    printf("       tablename -> table name to be cached in csql from target db.\n");
  26    printf("       R -> recover all cached tables from the target database.\n");
  27    printf("       s -> load only the records from target db. Assumes table is already created in csql\n");
  28    printf("       r -> reload the table. get the latest image of table from target db\n");
  29    printf("       u -> unload the table. if used with -s option, removes only records and preserves the schema\n");
  30    printf("       m -> synchronous mode\n");
  31    printf("       no option -> get table definition and records from target db and create in csql.\n");
  32    return;
  33 }
  34
  35 int main(int argc, char **argv)
  36 {
  37     char username[IDENTIFIER_LENGTH];
  38     username [0] = '\0';
  39     char password[IDENTIFIER_LENGTH];
  40     password [0] = '\0';
  41     int c = 0, opt = 10;
  42     char tablename[IDENTIFIER_LENGTH];
  43     char syncModeStr[IDENTIFIER_LENGTH];
  44     bool tableDefinition = true;
  45     bool tableNameSpecified = false;
  46     while ((c = getopt(argc, argv, "U:P:t:Rsru?")) != EOF)
  47     {
  48         switch (c)
  49         {
  50             case 'U' : { strcpy(username, argv[optind - 1]); opt=10; break; }
  51             case 'P' : { strcpy(password, argv[optind - 1]); opt=10; break; }
  52             case 't' : { strcpy(tablename, argv[optind - 1]);
  53                          if (opt==10) opt = 2;
  54                          tableNameSpecified = true;
  55                          break;
  56                        }
  57             case '?' : { opt = 10; break; } //print help
  58             case 'R' : { opt = 3; break; } //recover all the tables
  59             case 's' : { tableDefinition=false; break; } //do not get the schema information from target db
  60             case 'r' : { opt = 4; break; } //reload the table
  61             case 'u' : { opt = 5; break; } //unload the table
  62             default: opt=10;
  63
  64         }
  65     }//while options
  66     if (opt == 10) {
  67         printUsage();
  68         return 0;
  69     }
  70
  71     //printf("%s %s \n", username, password);
  72     if (username[0] == '\0' )
  73     {
  74         strcpy(username, "root");
  75         strcpy(password, "manager");
  76     }
  77     DbRetVal rv = OK;
  78     CacheTableLoader cacheLoader;
  79     cacheLoader.setConnParam(username, password);
  80     if (opt==2) {
  81         cacheLoader.setTable(tablename);
  82         rv = cacheLoader.load(tableDefinition);
  83         if (rv != OK) exit (1);
  84         rv = cacheLoader.addToCacheTableFile();
  85         if (rv != OK) exit (2);
  86     }else if (opt==3) //recover
  87     {
  88         rv = cacheLoader.recoverAllCachedTables();
  89         if (rv != OK) exit (1);
  90     }else if (opt==4) //reload
  91     {
  92         if (!tableNameSpecified)
  93         {
  94             printf("Table name is not specified. Check usage with ? \n");
  95             return 1;
  96         }
  97         cacheLoader.setTable(tablename);
  98         rv = cacheLoader.reload();
  99         if (rv != OK) exit (1);
 100     }else if (opt==5) //unload
 101     {
 102         if (!tableNameSpecified)
 103         {
 104             printf("Table name is not specified. Check usage with ? option\n");
 105             return 1;
 106         }
 107         cacheLoader.setTable(tablename);
 108         rv = cacheLoader.unload(tableDefinition);
 109         if (rv != OK) exit (1);
 110         rv = cacheLoader.removeFromCacheTableFile();
 111         if (rv != OK) exit (2);
 112
 113     }
 114     return 0;
 115 }