1 | #include <iostream> |
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2 | #include "wutils.h" |
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3 | #include "stopos.h" |
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4 | |
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5 | #include "mysql_connection.h" |
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6 | #include <cppconn/driver.h> |
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7 | #include <cppconn/exception.h> |
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8 | #include <cppconn/resultset.h> |
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9 | #include <cppconn/statement.h> |
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10 | #include <cppconn/prepared_statement.h> |
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11 | |
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12 | #include "stopos_pool.h" |
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13 | #include "mysql_pool.h" |
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14 | // construcor |
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15 | mysql_pool::mysql_pool() |
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16 | { |
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17 | this->whoami = "mysql"; |
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18 | std::string schema = "stopos"; |
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19 | sql::Driver *driver; |
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20 | driver = get_driver_instance(); |
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21 | // connection, mysqlusername, mysqlpassword |
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22 | this->connection = driver->connect("tcp://127.0.0.1:3307",schema,"x"); |
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23 | this->connection->setSchema(schema); |
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24 | this->stmt = this->connection->createStatement(); |
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25 | } |
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26 | |
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27 | mysql_pool::~mysql_pool(void) |
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28 | { |
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29 | delete this->stmt; |
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30 | delete this->connection; |
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31 | } |
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32 | |
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33 | int mysql_pool::create_db(const std::string &dbname) |
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34 | { |
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35 | int rc; |
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36 | rc = this->purge_db(); |
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37 | if (rc != 0) |
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38 | return rc; |
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39 | |
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40 | try |
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41 | { |
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42 | int rc; |
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43 | |
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44 | rc = this->open_db(); |
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45 | if (rc != 0) |
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46 | return rc; |
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47 | this->close_db(); |
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48 | |
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49 | return 0; |
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50 | } |
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51 | catch (sql::SQLException &e) |
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52 | { |
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53 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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54 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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55 | << __LINE__ << std::endl; |
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56 | std::cerr << "# ERR: " << e.what(); |
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57 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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58 | std::cerr << ", SQLState: " << e.getSQLState() << |
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59 | " )" << std::endl; |
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60 | return OPENERROR; |
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61 | } |
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62 | } |
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63 | |
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64 | int mysql_pool::purge_db(void) |
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65 | { |
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66 | if (this->db_name == 0) |
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67 | return NOFILENAME; |
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68 | try |
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69 | { |
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70 | std::string cmd = "DROP TABLE IF EXISTS " + this->sdb_name; |
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71 | this->stmt->execute(cmd); |
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72 | |
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73 | cmd = "CREATE TABLE " + this->sdb_name + |
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74 | "(pkey CHAR(20) NOT NULL," |
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75 | " PRIMARY KEY (pkey)," |
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76 | " INDEX(pkey)," |
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77 | " data VARCHAR(" + |
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78 | NumberToString(this->reclen) + |
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79 | +") NOT NULL)"; |
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80 | this->stmt->execute(cmd); |
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81 | } |
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82 | catch (sql::SQLException &e) |
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83 | { |
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84 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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85 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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86 | << __LINE__ << std::endl; |
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87 | std::cerr << "# ERR: " << e.what(); |
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88 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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89 | std::cerr << ", SQLState: " << e.getSQLState() << |
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90 | " )" << std::endl; |
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91 | return PURGEERROR; |
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92 | } |
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93 | return 0; |
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94 | } |
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95 | |
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96 | int mysql_pool::open_db(void) |
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97 | { |
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98 | if (! this->db_name) |
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99 | return OPENERROR; |
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100 | |
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101 | if (this->db_open) |
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102 | return 0; |
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103 | |
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104 | try |
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105 | { |
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106 | sql::ResultSet *res; |
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107 | std::string cmd; |
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108 | cmd="select count(*) as count " |
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109 | "from information_schema.tables " |
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110 | "where table_schema='stopos' " |
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111 | "and table_name = '"+this->sdb_name+"'"; |
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112 | res = this->stmt->executeQuery(cmd); |
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113 | res->beforeFirst(); |
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114 | if (res->next()) |
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115 | if (res->getInt("count") == 0) |
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116 | return OPENERROR; |
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117 | delete res; |
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118 | |
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119 | cmd = "lock tables " + this->sdb_name + " write"; |
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120 | this->stmt->execute(cmd); |
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121 | } |
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122 | catch (sql::SQLException &e) |
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123 | { |
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124 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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125 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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126 | << __LINE__ << std::endl; |
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127 | std::cerr << "# ERR: " << e.what(); |
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128 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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129 | std::cerr << ", SQLState: " << e.getSQLState() << |
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130 | " )" << std::endl; |
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131 | return OPENERROR; |
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132 | } |
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133 | |
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134 | this->db_open = 1; |
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135 | |
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136 | return 0; |
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137 | } |
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138 | |
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139 | int mysql_pool::close_db(void) |
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140 | { |
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141 | if (!this->db_open) |
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142 | return 0; |
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143 | |
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144 | std::string cmd; |
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145 | try |
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146 | { |
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147 | cmd = "unlock tables"; |
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148 | this->stmt->execute(cmd); |
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149 | } |
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150 | catch (sql::SQLException &e) |
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151 | { |
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152 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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153 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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154 | << __LINE__ << std::endl; |
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155 | std::cerr << "# ERR: " << e.what(); |
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156 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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157 | std::cerr << ", SQLState: " << e.getSQLState() << |
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158 | " )" << std::endl; |
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159 | return OPENERROR; |
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160 | } |
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161 | |
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162 | this->db_open = 0; |
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163 | |
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164 | return 0; |
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165 | } |
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166 | |
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167 | void mysql_pool::dump_db(void) |
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168 | { |
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169 | |
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170 | } |
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171 | |
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172 | int mysql_pool::get_record(std::string &r, const std::string &k, const std::string &l) |
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173 | { |
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174 | try |
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175 | { |
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176 | std::string cmd; |
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177 | sql::ResultSet *res; |
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178 | cmd = "select data from " + sdb_name + |
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179 | " where pkey = '" + k + "'"; |
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180 | res = this->stmt->executeQuery(cmd); |
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181 | res->beforeFirst(); |
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182 | if (res->next() == 0) |
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183 | return NOTFOUND; |
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184 | r = res->getString("data"); |
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185 | delete res; |
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186 | } |
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187 | catch (sql::SQLException &e) |
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188 | { |
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189 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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190 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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191 | << __LINE__ << std::endl; |
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192 | std::cerr << "# ERR: " << e.what(); |
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193 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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194 | std::cerr << ", SQLState: " << e.getSQLState() << |
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195 | " )" << std::endl; |
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196 | return NOTFOUND; |
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197 | } |
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198 | |
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199 | return 0; |
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200 | } |
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201 | |
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202 | int mysql_pool::put_record(const std::string &r, |
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203 | const std::string &k, |
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204 | const std::string &l) |
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205 | { |
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206 | try |
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207 | { |
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208 | std::string cmd; |
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209 | |
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210 | if (r.size() >= reclen) |
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211 | return RECORDTOOLONG; |
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212 | |
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213 | cmd = "replace " + sdb_name + |
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214 | " values('" + k + "','" + |
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215 | r + "')"; |
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216 | |
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217 | this->stmt->execute(cmd); |
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218 | } |
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219 | catch (sql::SQLException &e) |
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220 | { |
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221 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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222 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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223 | << __LINE__ << std::endl; |
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224 | std::cerr << "# ERR: " << e.what(); |
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225 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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226 | std::cerr << ", SQLState: " << e.getSQLState() << |
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227 | " )" << std::endl; |
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228 | return STOREERROR; |
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229 | } |
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230 | |
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231 | return 0; |
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232 | } |
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233 | |
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234 | int mysql_pool::remove_record(const std::string &k, const std::string &l) |
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235 | { |
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236 | try |
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237 | { |
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238 | std::string cmd; |
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239 | |
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240 | cmd = "delete from " + sdb_name + |
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241 | " where pkey ='" + k + "'"; |
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242 | |
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243 | this->stmt->execute(cmd); |
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244 | } |
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245 | catch (sql::SQLException &e) |
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246 | { |
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247 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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248 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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249 | << __LINE__ << std::endl; |
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250 | std::cerr << "# ERR: " << e.what(); |
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251 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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252 | std::cerr << ", SQLState: " << e.getSQLState() << |
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253 | " )" << std::endl; |
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254 | return STOREERROR; |
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255 | } |
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256 | |
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257 | return 0; |
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258 | } |
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259 | |
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260 | |
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261 | |
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