Mercurial > hg > orthanc-databases
annotate MySQL/Plugins/MySQLIndex.cpp @ 234:d1b124d116c1
PostgreSQL index plugin handles retries for collisions between multiple writers
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 08 Apr 2021 10:50:01 +0200 |
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children | 35598014f140 |
rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
193
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "MySQLIndex.h" | |
23 | |
24 #include "../../Framework/Plugins/GlobalProperties.h" | |
25 #include "../../Framework/MySQL/MySQLDatabase.h" | |
26 #include "../../Framework/MySQL/MySQLTransaction.h" | |
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27 #include "MySQLDefinitions.h" |
0 | 28 |
29 #include <EmbeddedResources.h> // Auto-generated file | |
30 | |
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31 #include <Compatibility.h> // For std::unique_ptr<> |
152 | 32 #include <Logging.h> |
33 #include <OrthancException.h> | |
0 | 34 |
35 #include <ctype.h> | |
36 | |
37 namespace OrthancDatabases | |
38 { | |
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39 MySQLIndex::MySQLIndex(OrthancPluginContext* context, |
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40 const MySQLParameters& parameters) : |
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41 IndexBackend(context), |
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42 parameters_(parameters), |
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43 clearAll_(false) |
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44 { |
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45 } |
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46 |
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47 |
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48 IDatabase* MySQLIndex::OpenDatabaseConnection() |
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49 { |
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50 return MySQLDatabase::OpenDatabaseConnection(parameters_); |
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51 } |
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52 |
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53 |
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54 static void ThrowCannotCreateTrigger() |
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55 { |
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56 LOG(ERROR) << "The MySQL user is not allowed to create triggers => 2 possible solutions:"; |
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57 LOG(ERROR) << " 1- Give the SUPER privilege to the MySQL database user, or"; |
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58 LOG(ERROR) << " 2- Run \"set global log_bin_trust_function_creators=1;\" as MySQL root user."; |
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59 LOG(ERROR) << "Once you are done, drop and recreate the MySQL database"; |
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60 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database, |
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61 "Need to fix the MySQL permissions for \"CREATE TRIGGER\""); |
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62 } |
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63 |
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64 |
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65 void MySQLIndex::ConfigureDatabase(IDatabase& database) |
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67 MySQLDatabase& db = dynamic_cast<MySQLDatabase&>(database); |
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68 |
0 | 69 uint32_t expectedVersion = 6; |
199 | 70 |
71 if (GetContext()) // "GetContext()" can possibly be NULL in the unit tests | |
0 | 72 { |
199 | 73 expectedVersion = OrthancPluginGetExpectedDatabaseVersion(GetContext()); |
0 | 74 } |
75 | |
76 // Check the expected version of the database | |
77 if (expectedVersion != 6) | |
78 { | |
79 LOG(ERROR) << "This database plugin is incompatible with your version of Orthanc " | |
80 << "expecting the DB schema version " << expectedVersion | |
81 << ", but this plugin is only compatible with version 6"; | |
82 throw Orthanc::OrthancException(Orthanc::ErrorCode_Plugin); | |
83 } | |
84 | |
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85 if (!MySQLDatabase::IsValidDatabaseIdentifier(parameters_.GetDatabase())) |
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86 { |
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87 throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); |
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88 } |
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89 |
0 | 90 if (clearAll_) |
91 { | |
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92 MySQLDatabase::ClearDatabase(parameters_); |
0 | 93 } |
94 | |
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95 { |
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96 MySQLDatabase::TransientAdvisoryLock lock(db, MYSQL_LOCK_DATABASE_SETUP); |
0 | 97 |
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98 /** |
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99 * In a first transaction, we create the tables. Such a |
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100 * transaction cannot be rollback: "The CREATE TABLE statement |
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101 * in InnoDB is processed as a single transaction. This means |
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102 * that a ROLLBACK from the user does not undo CREATE TABLE |
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103 * statements the user made during that transaction." |
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104 * https://dev.mysql.com/doc/refman/8.0/en/implicit-commit.html |
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105 * |
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106 * As a consequence, we delay the initial population of the |
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107 * tables in a sequence of transactions below. This solves the |
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108 * error message "MySQL plugin is incompatible with database |
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109 * schema version: 0" that was reported in the forum: |
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110 * https://groups.google.com/d/msg/orthanc-users/OCFFkm1qm0k/Mbroy8VWAQAJ |
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111 **/ |
0 | 112 { |
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113 MySQLTransaction t(db, TransactionType_ReadWrite); |
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114 |
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115 db.Execute("ALTER DATABASE " + parameters_.GetDatabase() + |
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116 " CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci", false); |
0 | 117 |
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118 // This is the first table to be created |
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119 if (!db.DoesTableExist(t, "GlobalProperties")) |
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120 { |
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121 std::string query; |
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122 |
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123 Orthanc::EmbeddedResources::GetFileResource |
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124 (query, Orthanc::EmbeddedResources::MYSQL_PREPARE_INDEX); |
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125 db.Execute(query, true); |
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126 } |
0 | 127 |
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128 t.Commit(); |
0 | 129 } |
130 | |
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131 /** |
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132 * This is the sequence of transactions that initially populate |
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133 * the database. WARNING - As table creation cannot be rollback, |
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134 * don't forget to add "IF NOT EXISTS" if some table must be |
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135 * created below this point (in order to recover from failed |
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136 * transaction). |
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137 **/ |
0 | 138 |
139 int version = 0; | |
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140 |
0 | 141 { |
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142 MySQLTransaction t(db, TransactionType_ReadWrite); |
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143 |
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144 // This is the last table to be created |
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145 if (!db.DoesTableExist(t, "PatientRecyclingOrder")) |
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146 { |
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147 LOG(ERROR) << "Corrupted MySQL database"; |
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148 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); |
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149 } |
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150 |
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151 // This is the last item to be created |
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152 if (!db.DoesTriggerExist(t, "PatientAdded")) |
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153 { |
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154 ThrowCannotCreateTrigger(); |
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155 } |
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156 |
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157 if (!LookupGlobalIntegerProperty(version, db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabaseSchemaVersion)) |
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158 { |
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159 SetGlobalIntegerProperty(db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabaseSchemaVersion, expectedVersion); |
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160 SetGlobalIntegerProperty(db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabasePatchLevel, 1); |
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161 version = expectedVersion; |
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162 } |
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163 |
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164 if (version != 6) |
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165 { |
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166 LOG(ERROR) << "MySQL plugin is incompatible with database schema version: " << version; |
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167 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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168 } |
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169 |
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170 t.Commit(); |
0 | 171 } |
172 | |
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173 int revision = 0; |
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174 |
0 | 175 { |
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176 MySQLTransaction t(db, TransactionType_ReadWrite); |
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177 |
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178 if (!LookupGlobalIntegerProperty(revision, db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabasePatchLevel)) |
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179 { |
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180 revision = 1; |
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181 SetGlobalIntegerProperty(db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabasePatchLevel, revision); |
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182 } |
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183 |
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184 t.Commit(); |
0 | 185 } |
186 | |
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187 if (revision == 1) |
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188 { |
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189 MySQLTransaction t(db, TransactionType_ReadWrite); |
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190 |
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191 // The serialization of jobs as a global property can lead to |
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192 // very long values => switch to the LONGTEXT type that can |
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193 // store up to 4GB: |
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194 // https://stackoverflow.com/a/13932834/881731 |
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195 db.Execute("ALTER TABLE GlobalProperties MODIFY value LONGTEXT", false); |
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196 |
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197 revision = 2; |
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198 SetGlobalIntegerProperty(db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabasePatchLevel, revision); |
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199 |
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200 t.Commit(); |
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201 } |
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202 |
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203 if (revision == 2) |
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204 { |
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205 MySQLTransaction t(db, TransactionType_ReadWrite); |
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206 |
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207 // Install the "GetLastChangeIndex" extension |
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208 std::string query; |
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209 |
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210 Orthanc::EmbeddedResources::GetFileResource |
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211 (query, Orthanc::EmbeddedResources::MYSQL_GET_LAST_CHANGE_INDEX); |
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212 db.Execute(query, true); |
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213 |
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214 if (!db.DoesTriggerExist(t, "ChangeAdded")) |
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215 { |
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216 ThrowCannotCreateTrigger(); |
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217 } |
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218 |
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219 revision = 3; |
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220 SetGlobalIntegerProperty(db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabasePatchLevel, revision); |
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221 |
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222 t.Commit(); |
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223 } |
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224 |
109
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225 if (revision == 3) |
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226 { |
226
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227 MySQLTransaction t(db, TransactionType_ReadWrite); |
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228 |
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229 // Reconfiguration of "Metadata" from TEXT type (up to 64KB) |
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230 // to the LONGTEXT type (up to 4GB). This might be important |
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231 // for applications such as the Osimis Web viewer that stores |
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232 // large amount of metadata. |
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233 // http://book.orthanc-server.com/faq/features.html#central-registry-of-metadata-and-attachments |
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234 db.Execute("ALTER TABLE Metadata MODIFY value LONGTEXT", false); |
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235 |
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236 revision = 4; |
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237 SetGlobalIntegerProperty(db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabasePatchLevel, revision); |
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238 |
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239 t.Commit(); |
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240 } |
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241 |
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242 if (revision == 4) |
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243 { |
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244 MySQLTransaction t(db, TransactionType_ReadWrite); |
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245 |
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246 // Install the "CreateInstance" extension |
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247 std::string query; |
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248 |
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249 Orthanc::EmbeddedResources::GetFileResource |
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250 (query, Orthanc::EmbeddedResources::MYSQL_CREATE_INSTANCE); |
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251 db.Execute(query, true); |
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252 |
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253 revision = 5; |
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254 SetGlobalIntegerProperty(db, t, MISSING_SERVER_IDENTIFIER, Orthanc::GlobalProperty_DatabasePatchLevel, revision); |
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255 |
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256 t.Commit(); |
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257 } |
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258 |
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259 if (revision != 5) |
0 | 260 { |
53 | 261 LOG(ERROR) << "MySQL plugin is incompatible with database schema revision: " << revision; |
0 | 262 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
263 } | |
264 } | |
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265 |
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266 /** |
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267 * WARNING: This lock must be acquired after |
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268 * "MYSQL_LOCK_DATABASE_SETUP" is released. Indeed, in MySQL < |
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269 * 5.7, it is impossible to acquire more than one lock at a time, |
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270 * as calling "SELECT GET_LOCK()" releases all the |
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271 * previously-acquired locks. |
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272 * https://dev.mysql.com/doc/refman/5.7/en/locking-functions.html |
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273 **/ |
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274 if (parameters_.HasLock()) |
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275 { |
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276 db.AdvisoryLock(MYSQL_LOCK_INDEX); |
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277 } |
0 | 278 } |
279 | |
280 | |
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281 int64_t MySQLIndex::CreateResource(DatabaseManager& manager, |
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282 const char* publicId, |
0 | 283 OrthancPluginResourceType type) |
284 { | |
285 { | |
286 DatabaseManager::CachedStatement statement( | |
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287 STATEMENT_FROM_HERE, manager, |
0 | 288 "INSERT INTO Resources VALUES(${}, ${type}, ${id}, NULL)"); |
289 | |
290 statement.SetParameterType("id", ValueType_Utf8String); | |
291 statement.SetParameterType("type", ValueType_Integer64); | |
292 | |
293 Dictionary args; | |
294 args.SetUtf8Value("id", publicId); | |
295 args.SetIntegerValue("type", static_cast<int>(type)); | |
296 | |
297 statement.Execute(args); | |
298 } | |
299 | |
300 { | |
301 DatabaseManager::CachedStatement statement( | |
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302 STATEMENT_FROM_HERE, manager, |
0 | 303 "SELECT LAST_INSERT_ID()"); |
304 | |
305 statement.Execute(); | |
306 | |
307 return ReadInteger64(statement, 0); | |
308 } | |
309 } | |
310 | |
311 | |
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312 void MySQLIndex::DeleteResource(IDatabaseBackendOutput& output, |
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313 DatabaseManager& manager, |
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314 int64_t id) |
0 | 315 { |
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316 ClearDeletedFiles(manager); |
0 | 317 |
318 // Recursive exploration of resources to be deleted, from the "id" | |
319 // resource to the top of the tree of resources | |
320 | |
321 bool done = false; | |
322 | |
323 while (!done) | |
324 { | |
325 int64_t parentId; | |
326 | |
327 { | |
328 DatabaseManager::CachedStatement lookupSiblings( | |
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329 STATEMENT_FROM_HERE, manager, |
0 | 330 "SELECT parentId FROM Resources " |
331 "WHERE parentId = (SELECT parentId FROM Resources WHERE internalId=${id});"); | |
332 | |
333 lookupSiblings.SetParameterType("id", ValueType_Integer64); | |
334 | |
335 Dictionary args; | |
336 args.SetIntegerValue("id", id); | |
337 | |
338 lookupSiblings.Execute(args); | |
339 | |
340 if (lookupSiblings.IsDone()) | |
341 { | |
342 // "id" is a root node | |
343 done = true; | |
344 } | |
345 else | |
346 { | |
347 parentId = ReadInteger64(lookupSiblings, 0); | |
348 lookupSiblings.Next(); | |
349 | |
350 if (lookupSiblings.IsDone()) | |
351 { | |
352 // "id" has no sibling node, recursively remove | |
353 done = false; | |
354 id = parentId; | |
355 } | |
356 else | |
357 { | |
358 // "id" has at least one sibling node: the parent node is the remaining ancestor | |
359 done = true; | |
360 | |
361 DatabaseManager::CachedStatement parent( | |
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362 STATEMENT_FROM_HERE, manager, |
0 | 363 "SELECT publicId, resourceType FROM Resources WHERE internalId=${id};"); |
364 | |
365 parent.SetParameterType("id", ValueType_Integer64); | |
366 | |
367 Dictionary args; | |
368 args.SetIntegerValue("id", parentId); | |
369 | |
370 parent.Execute(args); | |
371 | |
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372 output.SignalRemainingAncestor( |
0 | 373 ReadString(parent, 0), |
374 static_cast<OrthancPluginResourceType>(ReadInteger32(parent, 1))); | |
375 } | |
376 } | |
377 } | |
378 } | |
379 | |
380 { | |
381 DatabaseManager::CachedStatement deleteHierarchy( | |
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382 STATEMENT_FROM_HERE, manager, |
0 | 383 "DELETE FROM Resources WHERE internalId IN (SELECT * FROM (SELECT internalId FROM Resources WHERE internalId=${id} OR parentId=${id} OR parentId IN (SELECT internalId FROM Resources WHERE parentId=${id}) OR parentId IN (SELECT internalId FROM Resources WHERE parentId IN (SELECT internalId FROM Resources WHERE parentId=${id}))) as t);"); |
384 | |
385 deleteHierarchy.SetParameterType("id", ValueType_Integer64); | |
386 | |
387 Dictionary args; | |
388 args.SetIntegerValue("id", id); | |
389 | |
390 deleteHierarchy.Execute(args); | |
391 } | |
392 | |
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393 SignalDeletedFiles(output, manager); |
0 | 394 } |
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395 |
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396 |
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397 int64_t MySQLIndex::GetLastChangeIndex(DatabaseManager& manager) |
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398 { |
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399 DatabaseManager::CachedStatement statement( |
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400 STATEMENT_FROM_HERE, manager, |
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401 "SELECT value FROM GlobalIntegers WHERE property = 0"); |
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402 |
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403 statement.SetReadOnly(true); |
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404 statement.Execute(); |
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405 |
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406 return ReadInteger64(statement, 0); |
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407 } |
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408 |
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409 |
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410 #if ORTHANC_PLUGINS_HAS_DATABASE_CONSTRAINT == 1 |
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411 void MySQLIndex::CreateInstance(OrthancPluginCreateInstanceResult& result, |
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412 DatabaseManager& manager, |
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413 const char* hashPatient, |
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414 const char* hashStudy, |
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415 const char* hashSeries, |
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416 const char* hashInstance) |
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417 { |
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418 { |
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419 DatabaseManager::CachedStatement statement( |
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420 STATEMENT_FROM_HERE, manager, |
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421 "CALL CreateInstance(${patient}, ${study}, ${series}, ${instance}, " |
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422 "@isNewPatient, @isNewStudy, @isNewSeries, @isNewInstance, " |
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423 "@patientKey, @studyKey, @seriesKey, @instanceKey)"); |
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424 |
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425 statement.SetParameterType("patient", ValueType_Utf8String); |
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426 statement.SetParameterType("study", ValueType_Utf8String); |
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427 statement.SetParameterType("series", ValueType_Utf8String); |
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428 statement.SetParameterType("instance", ValueType_Utf8String); |
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429 |
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430 Dictionary args; |
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431 args.SetUtf8Value("patient", hashPatient); |
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432 args.SetUtf8Value("study", hashStudy); |
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433 args.SetUtf8Value("series", hashSeries); |
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434 args.SetUtf8Value("instance", hashInstance); |
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435 |
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436 statement.Execute(args); |
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437 |
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438 if (!statement.IsDone()) |
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439 { |
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440 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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441 } |
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442 } |
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443 |
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444 { |
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445 DatabaseManager::CachedStatement statement( |
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446 STATEMENT_FROM_HERE, manager, |
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447 "SELECT @isNewPatient, @isNewStudy, @isNewSeries, @isNewInstance, " |
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448 "@patientKey, @studyKey, @seriesKey, @instanceKey"); |
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449 |
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450 statement.Execute(); |
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451 |
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452 for (size_t i = 0; i < 8; i++) |
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453 { |
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454 statement.SetResultFieldType(i, ValueType_Integer64); |
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455 } |
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456 |
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457 result.isNewInstance = (ReadInteger64(statement, 3) == 1); |
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458 result.instanceId = ReadInteger64(statement, 7); |
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459 |
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460 if (result.isNewInstance) |
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461 { |
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462 result.isNewPatient = (ReadInteger64(statement, 0) == 1); |
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463 result.isNewStudy = (ReadInteger64(statement, 1) == 1); |
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464 result.isNewSeries = (ReadInteger64(statement, 2) == 1); |
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465 result.patientId = ReadInteger64(statement, 4); |
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466 result.studyId = ReadInteger64(statement, 5); |
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467 result.seriesId = ReadInteger64(statement, 6); |
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468 } |
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469 } |
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470 } |
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471 #endif |
0 | 472 } |