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 "mysql_pool.h" |
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13 | // construcor |
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14 | mysql_pool::mysql_pool() |
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15 | { |
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16 | std::string schema = "stopos"; |
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17 | sql::Driver *driver; |
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18 | driver = get_driver_instance(); |
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19 | // connection, mysqlusername, mysqlpassword |
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20 | this->connection = driver->connect("tcp://127.0.0.1:3307",schema,"x"); |
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21 | this->connection->setSchema(schema); |
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22 | this->stmt = this->connection->createStatement(); |
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23 | } |
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24 | |
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25 | mysql_pool::~mysql_pool(void) |
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26 | { |
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27 | delete this->stmt; |
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28 | delete this->connection; |
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29 | } |
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30 | |
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31 | int mysql_pool::create_db(void) |
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32 | { |
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33 | int rc; |
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34 | rc = this->purge_db(); |
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35 | if (rc != 0) |
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36 | return rc; |
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37 | |
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38 | try |
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39 | { |
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40 | int rc; |
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41 | |
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42 | rc = this->open_db(); |
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43 | if (rc != 0) |
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44 | return rc; |
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45 | |
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46 | this->status.init(); |
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47 | |
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48 | rc = put_status(); |
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49 | |
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50 | if (rc != 0) |
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51 | { |
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52 | this->close_db(); |
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53 | return this->STOREERROR; |
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54 | } |
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55 | |
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56 | rc = this->close_db(); |
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57 | if (rc != 0) |
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58 | return rc; |
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59 | } |
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60 | catch (sql::SQLException &e) |
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61 | { |
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62 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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63 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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64 | << __LINE__ << std::endl; |
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65 | std::cerr << "# ERR: " << e.what(); |
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66 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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67 | std::cerr << ", SQLState: " << e.getSQLState() << |
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68 | " )" << std::endl; |
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69 | return OPENERROR; |
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70 | } |
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71 | return 0; |
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72 | } |
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73 | |
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74 | int mysql_pool::purge_db(void) |
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75 | { |
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76 | if (this->db_name == 0) |
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77 | return NOFILENAME; |
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78 | try |
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79 | { |
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80 | int rc; |
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81 | std::string cmd = "DROP TABLE IF EXISTS " + this->sdb_name; |
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82 | this->stmt->execute(cmd); |
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83 | |
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84 | cmd = "CREATE TABLE " + this->sdb_name + |
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85 | "(pkey CHAR(20) NOT NULL," |
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86 | " PRIMARY KEY (pkey)," |
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87 | " INDEX(pkey)," |
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88 | " data VARCHAR(" + |
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89 | NumberToString(this->reclen) + |
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90 | +") NOT NULL)"; |
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91 | this->stmt->execute(cmd); |
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92 | } |
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93 | catch (sql::SQLException &e) |
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94 | { |
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95 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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96 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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97 | << __LINE__ << std::endl; |
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98 | std::cerr << "# ERR: " << e.what(); |
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99 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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100 | std::cerr << ", SQLState: " << e.getSQLState() << |
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101 | " )" << std::endl; |
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102 | return PURGEERROR; |
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103 | } |
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104 | return 0; |
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105 | } |
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106 | |
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107 | int mysql_pool::open_db(void) |
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108 | { |
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109 | if (! this->db_name) |
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110 | return OPENERROR; |
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111 | |
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112 | if (this->db_open) |
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113 | return 0; |
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114 | |
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115 | try |
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116 | { |
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117 | sql::ResultSet *res; |
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118 | std::string cmd; |
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119 | cmd="select count(*) as count " |
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120 | "from information_schema.tables " |
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121 | "where table_schema='stopos' " |
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122 | "and table_name = '"+this->sdb_name+"'"; |
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123 | res = this->stmt->executeQuery(cmd); |
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124 | res->beforeFirst(); |
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125 | if (res->next()) |
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126 | if (res->getInt("count") == 0) |
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127 | return OPENERROR; |
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128 | delete res; |
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129 | |
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130 | cmd = "lock tables " + this->sdb_name + " write"; |
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131 | this->stmt->execute(cmd); |
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132 | } |
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133 | catch (sql::SQLException &e) |
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134 | { |
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135 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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136 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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137 | << __LINE__ << std::endl; |
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138 | std::cerr << "# ERR: " << e.what(); |
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139 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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140 | std::cerr << ", SQLState: " << e.getSQLState() << |
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141 | " )" << std::endl; |
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142 | return OPENERROR; |
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143 | } |
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144 | |
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145 | this->db_open = 1; |
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146 | |
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147 | return 0; |
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148 | } |
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149 | |
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150 | int mysql_pool::close_db(void) |
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151 | { |
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152 | if (!this->db_open) |
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153 | return 0; |
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154 | |
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155 | std::string cmd; |
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156 | try |
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157 | { |
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158 | cmd = "unlock tables"; |
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159 | this->stmt->execute(cmd); |
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160 | } |
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161 | catch (sql::SQLException &e) |
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162 | { |
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163 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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164 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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165 | << __LINE__ << std::endl; |
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166 | std::cerr << "# ERR: " << e.what(); |
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167 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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168 | std::cerr << ", SQLState: " << e.getSQLState() << |
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169 | " )" << std::endl; |
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170 | return OPENERROR; |
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171 | } |
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172 | |
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173 | this->db_open = 0; |
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174 | |
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175 | return 0; |
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176 | } |
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177 | |
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178 | void mysql_pool::dump_db(void) |
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179 | { |
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180 | |
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181 | } |
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182 | |
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183 | int mysql_pool::get_record(datarecord &r, const stopos_key &k) |
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184 | { |
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185 | try |
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186 | { |
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187 | std::string cmd; |
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188 | sql::ResultSet *res; |
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189 | cmd = "select data from " + sdb_name + |
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190 | " where pkey = '" + k.str() + "'"; |
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191 | res = this->stmt->executeQuery(cmd); |
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192 | res->beforeFirst(); |
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193 | if (res->next() == 0) |
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194 | return NOTFOUND; |
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195 | std::string rec = res->getString("data"); |
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196 | r = datarecord(rec,dbsep); |
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197 | delete res; |
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198 | } |
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199 | catch (sql::SQLException &e) |
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200 | { |
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201 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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202 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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203 | << __LINE__ << std::endl; |
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204 | std::cerr << "# ERR: " << e.what(); |
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205 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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206 | std::cerr << ", SQLState: " << e.getSQLState() << |
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207 | " )" << std::endl; |
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208 | return NOTFOUND; |
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209 | } |
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210 | |
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211 | return 0; |
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212 | } |
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213 | |
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214 | int mysql_pool::put_record(datarecord &r, const stopos_key &k) |
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215 | { |
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216 | try |
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217 | { |
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218 | std::string cmd; |
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219 | |
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220 | cmd = "replace " + sdb_name + |
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221 | " values('" + k.str() + "','" + |
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222 | r.str(dbsep) + "')"; |
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223 | |
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224 | this->stmt->execute(cmd); |
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225 | } |
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226 | catch (sql::SQLException &e) |
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227 | { |
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228 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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229 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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230 | << __LINE__ << std::endl; |
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231 | std::cerr << "# ERR: " << e.what(); |
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232 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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233 | std::cerr << ", SQLState: " << e.getSQLState() << |
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234 | " )" << std::endl; |
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235 | return STOREERROR; |
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236 | } |
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237 | |
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238 | return 0; |
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239 | } |
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240 | |
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241 | int mysql_pool::remove_record(const stopos_key &k) |
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242 | { |
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243 | try |
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244 | { |
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245 | std::string cmd; |
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246 | |
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247 | cmd = "delete from " + sdb_name + |
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248 | " where pkey ='" + k.str() + "'"; |
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249 | |
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250 | this->stmt->execute(cmd); |
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251 | } |
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252 | catch (sql::SQLException &e) |
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253 | { |
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254 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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255 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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256 | << __LINE__ << std::endl; |
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257 | std::cerr << "# ERR: " << e.what(); |
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258 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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259 | std::cerr << ", SQLState: " << e.getSQLState() << |
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260 | " )" << std::endl; |
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261 | return STOREERROR; |
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262 | } |
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263 | |
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264 | return 0; |
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265 | } |
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266 | |
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267 | int mysql_pool::get_status(void) |
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268 | { |
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269 | try |
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270 | { |
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271 | std::string cmd; |
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272 | sql::ResultSet *res; |
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273 | |
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274 | cmd = "select data from " + sdb_name + |
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275 | " where pkey = '" + this->statuskey.str() + "'"; |
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276 | |
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277 | res = this->stmt->executeQuery(cmd); |
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278 | res->beforeFirst(); |
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279 | if (res->next() == 0) |
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280 | { |
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281 | return NOTFOUND; |
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282 | } |
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283 | |
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284 | std::string rec = res->getString("data"); |
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285 | this->status = statusrecord(rec,dbsep); |
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286 | delete res; |
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287 | } |
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288 | catch (sql::SQLException &e) |
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289 | { |
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290 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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291 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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292 | << __LINE__ << std::endl; |
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293 | std::cerr << "# ERR: " << e.what(); |
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294 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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295 | std::cerr << ", SQLState: " << e.getSQLState() << |
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296 | " )" << std::endl; |
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297 | return FETCHERROR; |
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298 | } |
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299 | |
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300 | return 0; |
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301 | } |
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302 | |
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303 | int mysql_pool::put_status(void) |
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304 | { |
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305 | try |
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306 | { |
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307 | std::string cmd; |
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308 | |
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309 | cmd = "replace " + sdb_name + |
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310 | " values('" + statuskey.str() + "','" + |
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311 | this->status.str(dbsep) + "')"; |
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312 | |
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313 | this->stmt->execute(cmd); |
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314 | } |
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315 | catch (sql::SQLException &e) |
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316 | { |
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317 | std::cerr << "# ERR: SQLException in " << __FILE__; |
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318 | std::cerr << "(" << __FUNCTION__ << ") on line " |
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319 | << __LINE__ << std::endl; |
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320 | std::cerr << "# ERR: " << e.what(); |
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321 | std::cerr << " (MySQL error code: " << e.getErrorCode(); |
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322 | std::cerr << ", SQLState: " << e.getSQLState() << |
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323 | " )" << std::endl; |
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324 | return STOREERROR; |
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325 | } |
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326 | return 0; |
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327 | } |
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328 | |
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329 | |
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