Mercurial > hg > orthanc-databases

annotate Framework/MySQL/MySQLDatabase.cpp @ 226:a4918d57435c

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DatabaseManager doesn't IDatabaseFactory anymore
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 02 Apr 2021 19:23:36 +0200
parents ee5858d438dc
children d1b124d116c1
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "MySQLDatabase.h"
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23
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24 #include "../Common/ImplicitTransaction.h"
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25 #include "../Common/Integer64Value.h"
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26 #include "../Common/RetryDatabaseFactory.h"
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27 #include "MySQLResult.h"
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28 #include "MySQLStatement.h"
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29 #include "MySQLTransaction.h"
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30
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31 #include <Compatibility.h> // For std::unique_ptr<>
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32 #include <Logging.h>
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33 #include <OrthancException.h>
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34 #include <Toolbox.h>
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35
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36 #include <errmsg.h>
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37 #include <mysqld_error.h>
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38
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39 #include <memory>
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40 #include <boost/thread.hpp>
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41
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42 namespace OrthancDatabases
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43 {
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44 void MySQLDatabase::Close()
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45 {
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46 if (mysql_ != NULL)
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47 {
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48 LOG(INFO) << "Closing connection to MySQL database";
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49 mysql_close(mysql_);
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50 mysql_ = NULL;
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51 }
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52 }
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53
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54
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55 void MySQLDatabase::CheckErrorCode(int code)
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56 {
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57 if (code == 0)
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58 {
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59 return;
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60 }
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61 else
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62 {
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63 LogError();
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64
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65 unsigned int error = mysql_errno(mysql_);
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66 if (error == CR_SERVER_GONE_ERROR ||
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67 error == CR_SERVER_LOST ||
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68 error == ER_QUERY_INTERRUPTED)
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69 {
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70 throw Orthanc::OrthancException(Orthanc::ErrorCode_DatabaseUnavailable);
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71 }
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72 else
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73 {
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74 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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75 }
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76 }
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77 }
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78
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79
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80 MySQLDatabase::MySQLDatabase(const MySQLParameters& parameters) :
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81 parameters_(parameters),
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82 mysql_(NULL)
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83 {
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84 }
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85
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86
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87 MySQLDatabase::~MySQLDatabase()
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88 {
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89 try
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90 {
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91 Close();
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92 }
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93 catch (Orthanc::OrthancException&)
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94 {
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95 // Ignore possible exceptions due to connection loss
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96 }
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97 }
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98
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99
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100 void MySQLDatabase::LogError()
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101 {
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102 if (mysql_ != NULL)
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103 {
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104 LOG(ERROR) << "MySQL error (" << mysql_errno(mysql_)
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105 << "," << mysql_sqlstate(mysql_)
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106 << "): " << mysql_error(mysql_);
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107 }
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108 }
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109
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110
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111 MYSQL* MySQLDatabase::GetObject()
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112 {
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113 if (mysql_ == NULL)
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114 {
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115 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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116 }
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117 else
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118 {
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119 return mysql_;
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120 }
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121 }
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122
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123
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124 void MySQLDatabase::OpenInternal(const char* db)
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125 {
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126 if (mysql_ != NULL)
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127 {
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128 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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129 }
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130
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131 mysql_ = mysql_init(NULL);
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132 if (mysql_ == NULL)
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133 {
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134 LOG(ERROR) << "Cannot initialize the MySQL connector";
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135 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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136 }
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137
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138 if (parameters_.GetUnixSocket().empty())
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139 {
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140 // Fallback to TCP connection if no UNIX socket is provided
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141 unsigned int protocol = MYSQL_PROTOCOL_TCP;
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142 mysql_options(mysql_, MYSQL_OPT_PROTOCOL, (unsigned int *) &protocol);
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143 }
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144
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145 if (parameters_.IsSsl())
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146 {
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147 if (parameters_.IsVerifyServerCertificates())
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148 {
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149 #if (MYSQL_VERSION_ID > 50110 && MYSQL_VERSION_ID < 80000) // Removed in MySQL client 8.0
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150 my_bool verifyCert = 1;
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151 mysql_options(mysql_, MYSQL_OPT_SSL_VERIFY_SERVER_CERT, (void *) &verifyCert);
187
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152 #endif
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153
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154 mysql_options(mysql_, MYSQL_OPT_SSL_CA, (void *)(parameters_.GetSslCaCertificates()));
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155 }
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156
187
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157 #if (MYSQL_VERSION_ID > 50110 && MYSQL_VERSION_ID < 80000) // Removed in MySQL client 8.0
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158 my_bool enforceTls = 1;
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159 mysql_options(mysql_, MYSQL_OPT_SSL_ENFORCE, (void *) &enforceTls);
187
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160 #endif
163
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161 }
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162
0
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163 const char* socket = (parameters_.GetUnixSocket().empty() ? NULL :
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164 parameters_.GetUnixSocket().c_str());
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165
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166 if (mysql_real_connect(mysql_,
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167 parameters_.GetHost().c_str(),
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168 parameters_.GetUsername().c_str(),
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169 parameters_.GetPassword().c_str(), db,
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170 parameters_.GetPort(), socket, 0) == 0)
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171 {
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172 LogError();
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173 Close();
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174 throw Orthanc::OrthancException(Orthanc::ErrorCode_DatabaseUnavailable);
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175 }
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176 else
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177 {
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178 LOG(INFO) << "Successful connection to MySQL database";
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179 }
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180
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181 if (mysql_set_character_set(mysql_, "utf8mb4") != 0)
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182 {
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183 LOG(ERROR) << "Cannot set the character set to UTF8";
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184 Close();
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185 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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186 }
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187 }
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188
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189
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190 void MySQLDatabase::Open()
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191 {
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192 if (parameters_.GetDatabase().empty())
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193 {
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194 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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195 }
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196 else
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197 {
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198 OpenInternal(parameters_.GetDatabase().c_str());
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199 }
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200 }
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201
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202
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203 void MySQLDatabase::ClearDatabase(const MySQLParameters& parameters)
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204 {
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205 MySQLDatabase db(parameters);
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206 db.OpenRoot();
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207
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208 const std::string& database = parameters.GetDatabase();
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209
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210 {
217
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211 MySQLTransaction t(db, TransactionType_ReadWrite);
23
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212
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213 if (!db.DoesDatabaseExist(t, database))
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214 {
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215 LOG(ERROR) << "Inexistent database, please create it first: " << database;
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216 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource);
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217 }
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218
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219 db.Execute("DROP DATABASE " + database, false);
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220 db.Execute("CREATE DATABASE " + database, false);
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221 t.Commit();
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222 }
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223 }
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224
0
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225
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226 namespace
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227 {
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228 class ResultWrapper : public boost::noncopyable
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229 {
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230 private:
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231 MYSQL_RES *result_;
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232
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233 public:
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234 ResultWrapper(MySQLDatabase& mysql,
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235 const std::string& sql) :
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236 result_(NULL)
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237 {
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238 if (mysql_real_query(mysql.GetObject(), sql.c_str(), sql.size()))
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239 {
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240 mysql.LogError();
0
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241 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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242 }
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243
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244 result_ = mysql_use_result(mysql.GetObject());
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245 if (result_ == NULL)
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246 {
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247 mysql.LogError();
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248 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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249 }
0
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250 }
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251
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252 ~ResultWrapper()
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253 {
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254 if (result_ != NULL)
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255 {
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256 mysql_free_result(result_);
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257 result_ = NULL;
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258 }
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259 }
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260
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261 MYSQL_RES *GetObject()
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262 {
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263 return result_;
0
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264 }
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265 };
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266 }
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267
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268
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269 bool MySQLDatabase::LookupGlobalStringVariable(std::string& value,
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270 const std::string& variable)
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271 {
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272 ResultWrapper result(*this, "SELECT @@global." + variable);
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273
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274 MYSQL_ROW row = mysql_fetch_row(result.GetObject());
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275 if (mysql_errno(mysql_) == 0 &&
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276 row &&
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277 row[0])
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278 {
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279 value = std::string(row[0]);
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280 return true;
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281 }
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282 else
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283 {
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284 return false;
0
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285 }
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286 }
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287
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288
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289 bool MySQLDatabase::LookupGlobalIntegerVariable(int64_t& value,
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290 const std::string& variable)
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291 {
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292 std::string s;
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293
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294 if (LookupGlobalStringVariable(s, variable))
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295 {
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296 try
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297 {
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298 value = boost::lexical_cast<int64_t>(s);
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299 return true;
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300 }
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301 catch (boost::bad_lexical_cast&)
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302 {
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303 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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304 }
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305 }
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diff changeset
306 else
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307 {
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308 return false;
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309 }
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310 }
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311
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312
137
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313 bool MySQLDatabase::RunAdvisoryLockStatement(Query& query,
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314 const std::string& lock)
135
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315 {
137
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316 const std::string& dbName = parameters_.GetDatabase();
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317
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318 // Prepend the name of the lock by the database name. This allows
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319 // to create a namespace for advisory locks:
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320 // https://groups.google.com/d/msg/orthanc-users/yV3LSTh_TjI/MQIcvnMlAQAJ
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321 std::string prefix;
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322 prefix.reserve(dbName.size());
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323 for (size_t i = 0; i < dbName.size(); i++)
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324 {
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325 if (isalnum(dbName[i]) ||
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326 dbName[i] == '$' ||
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327 dbName[i] == '_')
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328 {
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329 prefix.push_back(dbName[i]);
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330 }
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331 }
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332
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333 query.SetType("lock", ValueType_Utf8String);
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334
135
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335 Dictionary args;
137
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336 args.SetUtf8Value("lock", prefix + "." + lock);
135
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337
137
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338 bool success;
135
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339
137
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340 {
186
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341 MySQLStatement statement(*this, query);
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342
217
ee5858d438dc TransactionType given to MySQLTransaction constructor
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343 MySQLTransaction t(*this, TransactionType_ReadWrite);
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344 std::unique_ptr<IResult> result(t.Execute(statement, args));
135
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345
137
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346 success = (!result->IsDone() &&
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347 result->GetField(0).GetType() == ValueType_Integer64 &&
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348 dynamic_cast<const Integer64Value&>(result->GetField(0)).GetValue() == 1);
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349
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350 t.Commit();
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351 }
135
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352
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353 return success;
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354 }
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355
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356
137
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357 bool MySQLDatabase::AcquireAdvisoryLock(const std::string& lock)
135
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358 {
137
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359 Query query("SELECT GET_LOCK(${lock}, 0)", false);
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360 return RunAdvisoryLockStatement(query, lock);
135
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361 }
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362
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363
137
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364 bool MySQLDatabase::ReleaseAdvisoryLock(const std::string& lock)
135
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365 {
137
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366 Query query("SELECT RELEASE_LOCK(${lock})", false);
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367 return RunAdvisoryLockStatement(query, lock);
135
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368 }
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369
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370
137
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371 void MySQLDatabase::AdvisoryLock(const std::string& lock)
16
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372 {
135
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373 if (!AcquireAdvisoryLock(lock))
16
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374 {
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375 LOG(ERROR) << "The MySQL database is locked by another instance of Orthanc";
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376 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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377 }
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diff changeset
378 }
22
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379
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diff changeset
380
0
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381 bool MySQLDatabase::DoesTableExist(MySQLTransaction& transaction,
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382 const std::string& name)
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383 {
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384 if (mysql_ == NULL)
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385 {
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386 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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387 }
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388
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412e30336847 allowing dollars and underscores in MySQL database identifiers
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diff changeset
389 if (!IsValidDatabaseIdentifier(name))
24
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diff changeset
390 {
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diff changeset
391 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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diff changeset
392 }
22
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diff changeset
393
0
7cea966b6829 initial commit
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diff changeset
394 Query query("SELECT COUNT(*) FROM information_schema.TABLES WHERE "
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395 "(TABLE_SCHEMA = ${database}) AND (TABLE_NAME = ${table})", true);
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396 query.SetType("database", ValueType_Utf8String);
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397 query.SetType("table", ValueType_Utf8String);
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398
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399 MySQLStatement statement(*this, query);
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diff changeset
400
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401 Dictionary args;
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402 args.SetUtf8Value("database", parameters_.GetDatabase());
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403 args.SetUtf8Value("table", name);
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diff changeset
404
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diff changeset
405 std::unique_ptr<IResult> result(statement.Execute(transaction, args));
0
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406 return (!result->IsDone() &&
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407 result->GetFieldsCount() == 1 &&
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408 result->GetField(0).GetType() == ValueType_Integer64 &&
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diff changeset
409 dynamic_cast<const Integer64Value&>(result->GetField(0)).GetValue() == 1);
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diff changeset
410 }
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parents:
diff changeset
411
7cea966b6829 initial commit
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diff changeset
412
22
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diff changeset
413 bool MySQLDatabase::DoesDatabaseExist(MySQLTransaction& transaction,
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diff changeset
414 const std::string& name)
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diff changeset
415 {
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diff changeset
416 if (mysql_ == NULL)
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diff changeset
417 {
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diff changeset
418 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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diff changeset
419 }
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diff changeset
420
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412e30336847 allowing dollars and underscores in MySQL database identifiers
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diff changeset
421 if (!IsValidDatabaseIdentifier(name))
24
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diff changeset
422 {
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423 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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diff changeset
424 }
22
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diff changeset
425
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diff changeset
426 Query query("SELECT COUNT(*) FROM information_schema.SCHEMATA "
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diff changeset
427 "WHERE SCHEMA_NAME = ${database}", true);
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diff changeset
428 query.SetType("database", ValueType_Utf8String);
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diff changeset
429
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diff changeset
430 MySQLStatement statement(*this, query);
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diff changeset
431
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diff changeset
432 Dictionary args;
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433 args.SetUtf8Value("database", name);
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diff changeset
434
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diff changeset
435 std::unique_ptr<IResult> result(statement.Execute(transaction, args));
22
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diff changeset
436 return (!result->IsDone() &&
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diff changeset
437 result->GetFieldsCount() == 1 &&
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diff changeset
438 result->GetField(0).GetType() == ValueType_Integer64 &&
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parents: 16
diff changeset
439 dynamic_cast<const Integer64Value&>(result->GetField(0)).GetValue() == 1);
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diff changeset
440 }
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parents: 16
diff changeset
441
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diff changeset
442
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443 bool MySQLDatabase::DoesTriggerExist(MySQLTransaction& transaction,
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444 const std::string& name)
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445 {
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446 if (mysql_ == NULL)
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diff changeset
447 {
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448 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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diff changeset
449 }
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diff changeset
450
740d9829f52e handling of errors if MySQL user cannot CREATE TRIGGER
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diff changeset
451 if (!IsValidDatabaseIdentifier(name))
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diff changeset
452 {
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parents: 140
diff changeset
453 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
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diff changeset
454 }
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455
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diff changeset
456 Query query("SELECT COUNT(*) FROM information_schema.TRIGGERS "
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457 "WHERE TRIGGER_NAME = ${trigger}", true);
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diff changeset
458 query.SetType("trigger", ValueType_Utf8String);
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diff changeset
459
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diff changeset
460 MySQLStatement statement(*this, query);
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parents: 140
diff changeset
461
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diff changeset
462 Dictionary args;
740d9829f52e handling of errors if MySQL user cannot CREATE TRIGGER
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463 args.SetUtf8Value("trigger", name);
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diff changeset
464
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diff changeset
465 std::unique_ptr<IResult> result(statement.Execute(transaction, args));
144
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diff changeset
466 return (!result->IsDone() &&
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diff changeset
467 result->GetFieldsCount() == 1 &&
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parents: 140
diff changeset
468 result->GetField(0).GetType() == ValueType_Integer64 &&
186
6fe74f9a516e cppcheck
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parents: 165
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469 dynamic_cast<const Integer64Value&>(result->GetField(0)).GetValue() != 0);
144
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parents: 140
diff changeset
470 }
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parents: 140
diff changeset
471
740d9829f52e handling of errors if MySQL user cannot CREATE TRIGGER
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diff changeset
472
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9e419261f1c9 mysql storage area working
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diff changeset
473 void MySQLDatabase::Execute(const std::string& sql,
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diff changeset
474 bool arobaseSeparator)
0
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parents:
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475 {
7cea966b6829 initial commit
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476 if (mysql_ == NULL)
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parents:
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477 {
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diff changeset
478 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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479 }
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parents:
diff changeset
480
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diff changeset
481 // This emulates the behavior of "CLIENT_MULTI_STATEMENTS" in
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diff changeset
482 // "mysql_real_connect()", avoiding to implement a loop over
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diff changeset
483 // "mysql_query()"
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diff changeset
484 std::vector<std::string> commands;
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diff changeset
485 Orthanc::Toolbox::TokenizeString(commands, sql, ';');
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parents:
diff changeset
486
7cea966b6829 initial commit
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diff changeset
487 for (size_t i = 0; i < commands.size(); i++)
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parents:
diff changeset
488 {
7cea966b6829 initial commit
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489 std::string s = Orthanc::Toolbox::StripSpaces(commands[i]);
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parents:
diff changeset
490
7cea966b6829 initial commit
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diff changeset
491 if (!s.empty())
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diff changeset
492 {
16
9e419261f1c9 mysql storage area working
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diff changeset
493 if (arobaseSeparator)
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parents: 6
diff changeset
494 {
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parents: 6
diff changeset
495 // Replace the escape character "@" by a semicolon
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parents: 6
diff changeset
496 std::replace(s.begin(), s.end(), '@', ';');
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parents: 6
diff changeset
497 }
0
7cea966b6829 initial commit
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parents:
diff changeset
498
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diff changeset
499 LOG(TRACE) << "MySQL: " << s;
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diff changeset
500 CheckErrorCode(mysql_query(mysql_, s.c_str()));
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parents:
diff changeset
501 }
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parents:
diff changeset
502 }
7cea966b6829 initial commit
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parents:
diff changeset
503 }
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parents:
diff changeset
504
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
505
7cea966b6829 initial commit
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diff changeset
506 IPrecompiledStatement* MySQLDatabase::Compile(const Query& query)
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parents:
diff changeset
507 {
7cea966b6829 initial commit
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diff changeset
508 if (mysql_ == NULL)
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
509 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
510 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
511 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
512
7cea966b6829 initial commit
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parents:
diff changeset
513 return new MySQLStatement(*this, query);
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parents:
diff changeset
514 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
515
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
516
23
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parents: 22
diff changeset
517
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parents: 22
diff changeset
518 namespace
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parents: 22
diff changeset
519 {
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parents: 22
diff changeset
520 class MySQLImplicitTransaction : public ImplicitTransaction
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
521 {
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
522 protected:
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
523 virtual IResult* ExecuteInternal(IPrecompiledStatement& statement,
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
524 const Dictionary& parameters)
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
525 {
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
526 return dynamic_cast<MySQLStatement&>(statement).Execute(*this, parameters);
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
527 }
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parents: 22
diff changeset
528
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parents: 22
diff changeset
529 virtual void ExecuteWithoutResultInternal(IPrecompiledStatement& statement,
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
530 const Dictionary& parameters)
b2ff1cd2907a handling of implicit transactions in DatabaseManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 22
diff changeset
531 {
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
532 dynamic_cast<MySQLStatement&>(statement).ExecuteWithoutResult(*this, parameters);
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
533 }
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
534 };
b2ff1cd2907a handling of implicit transactions in DatabaseManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 22
diff changeset
535 }
b2ff1cd2907a handling of implicit transactions in DatabaseManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 22
diff changeset
536
b2ff1cd2907a handling of implicit transactions in DatabaseManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 22
diff changeset
537
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b40b30075c51 added TransactionType_Implicit
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diff changeset
538 ITransaction* MySQLDatabase::CreateTransaction(TransactionType type)
0
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
539 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
540 if (mysql_ == NULL)
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
541 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
542 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
543 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
544
215
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parents: 193
diff changeset
545 switch (type)
23
b2ff1cd2907a handling of implicit transactions in DatabaseManager
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parents: 22
diff changeset
546 {
215
b40b30075c51 added TransactionType_Implicit
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parents: 193
diff changeset
547 case TransactionType_Implicit:
b40b30075c51 added TransactionType_Implicit
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 193
diff changeset
548 return new MySQLImplicitTransaction;
b40b30075c51 added TransactionType_Implicit
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 193
diff changeset
549
b40b30075c51 added TransactionType_Implicit
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 193
diff changeset
550 case TransactionType_ReadOnly:
b40b30075c51 added TransactionType_Implicit
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parents: 193
diff changeset
551 case TransactionType_ReadWrite:
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ee5858d438dc TransactionType given to MySQLTransaction constructor
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parents: 215
diff changeset
552 return new MySQLTransaction(*this, type);
215
b40b30075c51 added TransactionType_Implicit
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 193
diff changeset
553
b40b30075c51 added TransactionType_Implicit
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 193
diff changeset
554 default:
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 193
diff changeset
555 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange);
23
b2ff1cd2907a handling of implicit transactions in DatabaseManager
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 22
diff changeset
556 }
0
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
557 }
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
558
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
559
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
560 void MySQLDatabase::GlobalFinalization()
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
561 {
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
562 mysql_library_end();
7cea966b6829 initial commit
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
diff changeset
563 }
24
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
564
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
565
60
412e30336847 allowing dollars and underscores in MySQL database identifiers
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parents: 46
diff changeset
566 bool MySQLDatabase::IsValidDatabaseIdentifier(const std::string& s)
24
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
567 {
17f849b2af34 sharing plugin initialization code
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parents: 23
diff changeset
568 for (size_t i = 0; i < s.length(); i++)
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
569 {
60
412e30336847 allowing dollars and underscores in MySQL database identifiers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 46
diff changeset
570 // https://dev.mysql.com/doc/refman/8.0/en/identifiers.html
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Sebastien Jodogne <s.jodogne@gmail.com>
parents: 46
diff changeset
571 if (!isalnum(s[i]) &&
412e30336847 allowing dollars and underscores in MySQL database identifiers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 46
diff changeset
572 s[i] != '$' &&
412e30336847 allowing dollars and underscores in MySQL database identifiers
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 46
diff changeset
573 s[i] != '_')
24
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
574 {
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
575 return false;
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
576 }
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
577 }
17f849b2af34 sharing plugin initialization code
Sebastien Jodogne <s.jodogne@gmail.com>
parents: 23
diff changeset
578
17f849b2af34 sharing plugin initialization code
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579 return true;
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580 }
135
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581
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582
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583 MySQLDatabase::TransientAdvisoryLock::
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584 TransientAdvisoryLock(MySQLDatabase& database,
137
52b3859ee0b7 MySQL: acquiring named locks instead of numbers
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585 const std::string& lock) :
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586 database_(database),
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587 lock_(lock)
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588 {
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589 bool locked = true;
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590
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591 for (unsigned int i = 0; i < 10; i++)
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592 {
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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593 if (database_.AcquireAdvisoryLock(lock_))
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594 {
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595 locked = false;
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596 break;
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597 }
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598 else
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599 {
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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600 boost::this_thread::sleep(boost::posix_time::milliseconds(500));
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601 }
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602 }
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603
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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604 if (locked)
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605 {
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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606 LOG(ERROR) << "Cannot acquire a transient advisory lock";
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607 throw Orthanc::OrthancException(Orthanc::ErrorCode_Plugin);
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608 }
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609 }
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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diff changeset
610
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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611
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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612 MySQLDatabase::TransientAdvisoryLock::~TransientAdvisoryLock()
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613 {
e26690365c25 MySQL: Added an advisory lock to avoid race conditions during database setup
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614 database_.ReleaseAdvisoryLock(lock_);
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615 }
226
a4918d57435c DatabaseManager doesn't IDatabaseFactory anymore
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616
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617
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618 MySQLDatabase* MySQLDatabase::OpenDatabaseConnection(const MySQLParameters& parameters)
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619 {
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620 class Factory : public RetryDatabaseFactory
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621 {
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622 private:
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623 const MySQLParameters& parameters_;
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624
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625 protected:
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626 virtual IDatabase* TryOpen()
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627 {
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628 std::unique_ptr<MySQLDatabase> db(new MySQLDatabase(parameters_));
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629 db->Open();
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630 return db.release();
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631 }
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632
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633 public:
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634 Factory(const MySQLParameters& parameters) :
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635 RetryDatabaseFactory(parameters.GetMaxConnectionRetries(),
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636 parameters.GetConnectionRetryInterval()),
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637 parameters_(parameters)
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638 {
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639 }
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640 };
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641
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642 Factory factory(parameters);
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643 return dynamic_cast<MySQLDatabase*>(factory.Open());
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644 }
0
7cea966b6829 initial commit
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645 }