Mercurial > hg > orthanc-databases
annotate PostgreSQL/Plugins/PostgreSQLIndex.cpp @ 13:927264a0c137
preserve the original index
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 09 Jul 2018 18:42:34 +0200 |
| parents | 41543239072d |
| children | dfc7002add9c |
| 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 "PostgreSQLIndex.h" | |
| 23 | |
| 24 #include "../../Framework/Plugins/GlobalProperties.h" | |
| 25 #include "../../Framework/PostgreSQL/PostgreSQLDatabase.h" | |
| 26 #include "../../Framework/PostgreSQL/PostgreSQLTransaction.h" | |
| 27 | |
| 28 #include <EmbeddedResources.h> // Auto-generated file | |
| 29 | |
| 30 #include <Core/Logging.h> | |
| 31 #include <Core/OrthancException.h> | |
| 32 | |
| 33 | |
| 34 namespace Orthanc | |
| 35 { | |
| 36 // Some aliases for internal properties | |
| 37 static const GlobalProperty GlobalProperty_HasTrigramIndex = GlobalProperty_DatabaseInternal0; | |
| 38 } | |
| 39 | |
| 40 | |
| 41 namespace OrthancDatabases | |
| 42 { | |
| 43 IDatabase* PostgreSQLIndex::OpenInternal() | |
| 44 { | |
| 45 uint32_t expectedVersion = 6; | |
| 46 if (context_) | |
| 47 { | |
| 48 expectedVersion = OrthancPluginGetExpectedDatabaseVersion(context_); | |
| 49 } | |
| 50 else | |
| 51 { | |
| 52 // This case only occurs during unit testing | |
| 53 expectedVersion = 6; | |
| 54 } | |
| 55 | |
| 56 // Check the expected version of the database | |
| 57 if (expectedVersion != 6) | |
| 58 { | |
| 59 LOG(ERROR) << "This database plugin is incompatible with your version of Orthanc " | |
| 60 << "expecting the DB schema version " << expectedVersion | |
| 61 << ", but this plugin is only compatible with version 6"; | |
| 62 throw Orthanc::OrthancException(Orthanc::ErrorCode_Plugin); | |
| 63 } | |
| 64 | |
| 65 std::auto_ptr<PostgreSQLDatabase> db(new PostgreSQLDatabase(parameters_)); | |
| 66 | |
| 67 db->Open(); | |
| 68 | |
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69 if (parameters_.HasLock()) |
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70 { |
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71 db->AdvisoryLock(42 /* some arbitrary constant */); |
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72 } |
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73 |
| 0 | 74 if (clearAll_) |
| 75 { | |
| 76 db->ClearAll(); | |
| 77 } | |
| 78 | |
| 79 { | |
| 80 PostgreSQLTransaction t(*db); | |
| 81 | |
| 82 if (!db->DoesTableExist("Resources")) | |
| 83 { | |
| 84 std::string query; | |
| 85 | |
| 86 Orthanc::EmbeddedResources::GetFileResource | |
| 87 (query, Orthanc::EmbeddedResources::POSTGRESQL_PREPARE_INDEX); | |
| 88 db->Execute(query); | |
| 89 | |
| 90 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabaseSchemaVersion, expectedVersion); | |
| 91 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabasePatchLevel, 1); | |
| 92 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_HasTrigramIndex, 0); | |
| 93 } | |
| 94 | |
| 95 if (!db->DoesTableExist("Resources")) | |
| 96 { | |
| 97 LOG(ERROR) << "Corrupted PostgreSQL database"; | |
| 98 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 99 } | |
| 100 | |
| 101 int version = 0; | |
| 102 if (!LookupGlobalIntegerProperty(version, *db, t, Orthanc::GlobalProperty_DatabaseSchemaVersion) || | |
| 103 version != 6) | |
| 104 { | |
| 105 LOG(ERROR) << "PostgreSQL plugin is incompatible with database schema version: " << version; | |
| 106 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); | |
| 107 } | |
| 108 | |
| 109 int revision; | |
| 110 if (!LookupGlobalIntegerProperty(revision, *db, t, Orthanc::GlobalProperty_DatabasePatchLevel)) | |
| 111 { | |
| 112 revision = 1; | |
| 113 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_DatabasePatchLevel, revision); | |
| 114 } | |
| 115 | |
| 116 int hasTrigram = 0; | |
| 117 if (!LookupGlobalIntegerProperty(hasTrigram, *db, t, Orthanc::GlobalProperty_HasTrigramIndex) || | |
| 118 hasTrigram != 1) | |
| 119 { | |
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120 /** |
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121 * Apply fix for performance issue (speed up wildcard search |
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122 * by using GIN trigrams). This implements the patch suggested |
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123 * in issue #47, BUT we also keep the original |
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124 * "DicomIdentifiersIndexValues", as it leads to better |
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125 * performance for "strict" searches (i.e. searches involving |
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126 * no wildcard). |
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127 * https://www.postgresql.org/docs/current/static/pgtrgm.html |
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128 * https://bitbucket.org/sjodogne/orthanc/issues/47/index-improvements-for-pg-plugin |
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129 **/ |
| 0 | 130 try |
| 131 { | |
| 132 LOG(INFO) << "Trying to enable trigram matching on the PostgreSQL database to speed up wildcard searches"; | |
| 133 db->Execute( | |
| 134 "CREATE EXTENSION pg_trgm; " | |
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135 "CREATE INDEX DicomIdentifiersIndexValues2 ON DicomIdentifiers USING gin(value gin_trgm_ops);"); |
| 0 | 136 |
| 137 SetGlobalIntegerProperty(*db, t, Orthanc::GlobalProperty_HasTrigramIndex, 1); | |
| 138 } | |
| 139 catch (Orthanc::OrthancException&) | |
| 140 { | |
| 141 LOG(WARNING) << "Performance warning: Your PostgreSQL server does not support trigram matching"; | |
| 142 LOG(WARNING) << "-> Consider installing the \"pg_trgm\" extension on the PostgreSQL server, e.g. on Debian: sudo apt install postgresql-contrib"; | |
| 143 } | |
| 144 } | |
| 145 | |
| 146 if (revision != 1) | |
| 147 { | |
| 148 LOG(ERROR) << "PostgreSQL plugin is incompatible with database schema revision: " << revision; | |
| 149 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); | |
| 150 } | |
| 151 | |
| 152 t.Commit(); | |
| 153 } | |
| 154 | |
| 155 return db.release(); | |
| 156 } | |
| 157 | |
| 158 | |
| 159 PostgreSQLIndex::PostgreSQLIndex(const PostgreSQLParameters& parameters) : | |
| 160 IndexBackend(new Factory(*this)), | |
| 161 context_(NULL), | |
| 162 parameters_(parameters), | |
| 163 clearAll_(false) | |
| 164 { | |
| 165 } | |
| 166 | |
| 167 | |
| 168 int64_t PostgreSQLIndex::CreateResource(const char* publicId, | |
| 169 OrthancPluginResourceType type) | |
| 170 { | |
| 171 DatabaseManager::CachedStatement statement( | |
| 172 STATEMENT_FROM_HERE, GetManager(), | |
| 173 "INSERT INTO Resources VALUES(${}, ${type}, ${id}, NULL) RETURNING internalId"); | |
| 174 | |
| 175 statement.SetParameterType("id", ValueType_Utf8String); | |
| 176 statement.SetParameterType("type", ValueType_Integer64); | |
| 177 | |
| 178 Dictionary args; | |
| 179 args.SetUtf8Value("id", publicId); | |
| 180 args.SetIntegerValue("type", static_cast<int>(type)); | |
| 181 | |
| 182 statement.Execute(args); | |
| 183 | |
| 184 return ReadInteger64(statement, 0); | |
| 185 } | |
| 186 } |