Mercurial > hg > orthanc-databases

annotate PostgreSQL/Plugins/PostgreSQLStorageArea.cpp @ 545:de157cf213f6 pg-transactions

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closing branch pg-transactions
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 09 Sep 2024 12:48:22 +0200
parents ecd0b719cff5
children 54d518dcd74a
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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) 2017-2024 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Affero General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Affero General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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23 #include "PostgreSQLStorageArea.h"
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24 #include "PostgreSQLDefinitions.h"
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26 #include "../../Framework/PostgreSQL/PostgreSQLTransaction.h"
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27 #include "../../Resources/Orthanc/Plugins/OrthancPluginCppWrapper.h"
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29 #include <Compatibility.h> // For std::unique_ptr<>
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30 #include <Logging.h>
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33 namespace OrthancDatabases
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34 {
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35 void PostgreSQLStorageArea::ConfigureDatabase(PostgreSQLDatabase& db,
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36 const PostgreSQLParameters& parameters,
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37 bool clearAll)
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38 {
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39 if (parameters.HasLock())
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40 {
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41 db.AdvisoryLock(POSTGRESQL_LOCK_STORAGE);
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42 }
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44 {
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45 PostgreSQLDatabase::TransientAdvisoryLock lock(db, POSTGRESQL_LOCK_DATABASE_SETUP);
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47 if (clearAll)
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48 {
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49 db.ClearAll();
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50 }
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52 {
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53 PostgreSQLTransaction t(db, TransactionType_ReadWrite);
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55 if (!db.DoesTableExist("StorageArea"))
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56 {
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57 db.ExecuteMultiLines("CREATE TABLE IF NOT EXISTS StorageArea("
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58 "uuid VARCHAR NOT NULL PRIMARY KEY,"
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59 "content OID NOT NULL,"
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60 "type INTEGER NOT NULL)");
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61
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62 // Automatically remove the large objects associated with the table
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63 db.ExecuteMultiLines("CREATE OR REPLACE RULE StorageAreaDelete AS ON DELETE "
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64 "TO StorageArea DO SELECT lo_unlink(old.content);");
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65 }
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67 t.Commit();
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68 }
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73 PostgreSQLStorageArea::PostgreSQLStorageArea(const PostgreSQLParameters& parameters,
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74 bool clearAll) :
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75 StorageBackend(PostgreSQLDatabase::CreateDatabaseFactory(parameters),
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76 parameters.GetMaxConnectionRetries())
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77 {
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78 {
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79 AccessorBase accessor(*this);
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80 PostgreSQLDatabase& database = dynamic_cast<PostgreSQLDatabase&>(accessor.GetManager().GetDatabase());
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81 ConfigureDatabase(database, parameters, clearAll);
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82 }
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83 }
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84 }