Mercurial > hg > orthanc-databases
annotate MySQL/Plugins/MySQLIndex.cpp @ 23:b2ff1cd2907a
handling of implicit transactions in DatabaseManager
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 12 Jul 2018 10:44:17 +0200 |
| parents | 1e9bad493475 |
| children | 17f849b2af34 |
| rev | line source |
|---|---|
| 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 | |
| 5 * Copyright (C) 2017-2018 Osimis S.A., Belgium | |
| 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" | |
| 27 | |
| 28 #include <EmbeddedResources.h> // Auto-generated file | |
| 29 | |
| 30 #include <Core/Logging.h> | |
| 31 #include <Core/OrthancException.h> | |
| 32 | |
| 33 #include <ctype.h> | |
| 34 | |
| 35 namespace OrthancDatabases | |
| 36 { | |
| 37 IDatabase* MySQLIndex::OpenInternal() | |
| 38 { | |
| 39 uint32_t expectedVersion = 6; | |
| 40 if (context_) | |
| 41 { | |
| 42 expectedVersion = OrthancPluginGetExpectedDatabaseVersion(context_); | |
| 43 } | |
| 44 else | |
| 45 { | |
| 46 // This case only occurs during unit testing | |
| 47 expectedVersion = 6; | |
| 48 } | |
| 49 | |
| 50 // Check the expected version of the database | |
| 51 if (expectedVersion != 6) | |
| 52 { | |
| 53 LOG(ERROR) << "This database plugin is incompatible with your version of Orthanc " | |
| 54 << "expecting the DB schema version " << expectedVersion | |
| 55 << ", but this plugin is only compatible with version 6"; | |
| 56 throw Orthanc::OrthancException(Orthanc::ErrorCode_Plugin); | |
| 57 } | |
| 58 | |
| 59 if (clearAll_) | |
| 60 { | |
|
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61 MySQLDatabase::ClearDatabase(parameters_); |
| 0 | 62 } |
| 63 | |
| 64 std::auto_ptr<MySQLDatabase> db(new MySQLDatabase(parameters_)); | |
| 65 | |
| 66 db->Open(); | |
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67 |
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68 db->Execute("SET SESSION TRANSACTION ISOLATION LEVEL SERIALIZABLE", false); |
| 0 | 69 |
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70 if (parameters_.HasLock()) |
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71 { |
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72 db->AdvisoryLock(42 /* some arbitrary constant */); |
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73 } |
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74 |
| 0 | 75 { |
| 76 MySQLTransaction t(*db); | |
| 77 | |
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78 db->Execute("ALTER DATABASE " + parameters_.GetDatabase() + |
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79 " CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci", false); |
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80 |
| 0 | 81 if (!db->DoesTableExist(t, "Resources")) |
| 82 { | |
| 83 std::string query; | |
| 84 | |
| 85 Orthanc::EmbeddedResources::GetFileResource | |
| 86 (query, Orthanc::EmbeddedResources::MYSQL_PREPARE_INDEX); | |
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87 db->Execute(query, true); |
| 0 | 88 |
| 89 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabaseSchemaVersion, expectedVersion); | |
| 90 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabasePatchLevel, 1); | |
| 91 } | |
| 92 | |
| 93 if (!db->DoesTableExist(t, "Resources")) | |
| 94 { | |
| 95 LOG(ERROR) << "Corrupted MySQL database"; | |
| 96 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 97 } | |
| 98 | |
| 99 int version = 0; | |
| 100 if (!LookupGlobalIntegerProperty(version, *db, t, Orthanc::GlobalProperty_DatabaseSchemaVersion) || | |
| 101 version != 6) | |
| 102 { | |
| 103 LOG(ERROR) << "PostgreSQL plugin is incompatible with database schema version: " << version; | |
| 104 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); | |
| 105 } | |
| 106 | |
| 107 int revision; | |
| 108 if (!LookupGlobalIntegerProperty(revision, *db, t, Orthanc::GlobalProperty_DatabasePatchLevel)) | |
| 109 { | |
| 110 revision = 1; | |
| 111 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabasePatchLevel, revision); | |
| 112 } | |
| 113 | |
| 114 if (revision != 1) | |
| 115 { | |
| 116 LOG(ERROR) << "PostgreSQL plugin is incompatible with database schema revision: " << revision; | |
| 117 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); | |
| 118 } | |
| 119 | |
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120 t.Commit(); |
| 0 | 121 } |
| 122 | |
| 123 return db.release(); | |
| 124 } | |
| 125 | |
| 126 | |
| 127 MySQLIndex::MySQLIndex(const MySQLParameters& parameters) : | |
| 128 IndexBackend(new Factory(*this)), | |
| 129 context_(NULL), | |
| 130 parameters_(parameters), | |
| 131 clearAll_(false) | |
| 132 { | |
| 133 } | |
| 134 | |
| 135 | |
| 136 int64_t MySQLIndex::CreateResource(const char* publicId, | |
| 137 OrthancPluginResourceType type) | |
| 138 { | |
| 139 { | |
| 140 DatabaseManager::CachedStatement statement( | |
| 141 STATEMENT_FROM_HERE, GetManager(), | |
| 142 "INSERT INTO Resources VALUES(${}, ${type}, ${id}, NULL)"); | |
| 143 | |
| 144 statement.SetParameterType("id", ValueType_Utf8String); | |
| 145 statement.SetParameterType("type", ValueType_Integer64); | |
| 146 | |
| 147 Dictionary args; | |
| 148 args.SetUtf8Value("id", publicId); | |
| 149 args.SetIntegerValue("type", static_cast<int>(type)); | |
| 150 | |
| 151 statement.Execute(args); | |
| 152 } | |
| 153 | |
| 154 { | |
| 155 DatabaseManager::CachedStatement statement( | |
| 156 STATEMENT_FROM_HERE, GetManager(), | |
| 157 "SELECT LAST_INSERT_ID()"); | |
| 158 | |
| 159 statement.Execute(); | |
| 160 | |
| 161 return ReadInteger64(statement, 0); | |
| 162 } | |
| 163 } | |
| 164 | |
| 165 | |
| 166 void MySQLIndex::DeleteResource(int64_t id) | |
| 167 { | |
| 168 ClearDeletedFiles(); | |
| 169 | |
| 170 // Recursive exploration of resources to be deleted, from the "id" | |
| 171 // resource to the top of the tree of resources | |
| 172 | |
| 173 bool done = false; | |
| 174 | |
| 175 while (!done) | |
| 176 { | |
| 177 int64_t parentId; | |
| 178 | |
| 179 { | |
| 180 DatabaseManager::CachedStatement lookupSiblings( | |
| 181 STATEMENT_FROM_HERE, GetManager(), | |
| 182 "SELECT parentId FROM Resources " | |
| 183 "WHERE parentId = (SELECT parentId FROM Resources WHERE internalId=${id});"); | |
| 184 | |
| 185 lookupSiblings.SetParameterType("id", ValueType_Integer64); | |
| 186 | |
| 187 Dictionary args; | |
| 188 args.SetIntegerValue("id", id); | |
| 189 | |
| 190 lookupSiblings.Execute(args); | |
| 191 | |
| 192 if (lookupSiblings.IsDone()) | |
| 193 { | |
| 194 // "id" is a root node | |
| 195 done = true; | |
| 196 } | |
| 197 else | |
| 198 { | |
| 199 parentId = ReadInteger64(lookupSiblings, 0); | |
| 200 lookupSiblings.Next(); | |
| 201 | |
| 202 if (lookupSiblings.IsDone()) | |
| 203 { | |
| 204 // "id" has no sibling node, recursively remove | |
| 205 done = false; | |
| 206 id = parentId; | |
| 207 } | |
| 208 else | |
| 209 { | |
| 210 // "id" has at least one sibling node: the parent node is the remaining ancestor | |
| 211 done = true; | |
| 212 | |
| 213 DatabaseManager::CachedStatement parent( | |
| 214 STATEMENT_FROM_HERE, GetManager(), | |
| 215 "SELECT publicId, resourceType FROM Resources WHERE internalId=${id};"); | |
| 216 | |
| 217 parent.SetParameterType("id", ValueType_Integer64); | |
| 218 | |
| 219 Dictionary args; | |
| 220 args.SetIntegerValue("id", parentId); | |
| 221 | |
| 222 parent.Execute(args); | |
| 223 | |
| 224 GetOutput().SignalRemainingAncestor( | |
| 225 ReadString(parent, 0), | |
| 226 static_cast<OrthancPluginResourceType>(ReadInteger32(parent, 1))); | |
| 227 } | |
| 228 } | |
| 229 } | |
| 230 } | |
| 231 | |
| 232 { | |
| 233 DatabaseManager::CachedStatement deleteHierarchy( | |
| 234 STATEMENT_FROM_HERE, GetManager(), | |
| 235 "DELETE FROM Resources WHERE internalId IN (SELECT * FROM (SELECT internalId FROM Resources WHERE internalId=${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);"); | |
| 236 | |
| 237 deleteHierarchy.SetParameterType("id", ValueType_Integer64); | |
| 238 | |
| 239 Dictionary args; | |
| 240 args.SetIntegerValue("id", id); | |
| 241 | |
| 242 deleteHierarchy.Execute(args); | |
| 243 } | |
| 244 | |
| 245 SignalDeletedFiles(); | |
| 246 } | |
| 247 } |