Mercurial > hg > orthanc-databases
annotate PostgreSQL/Plugins/PostgreSQLStorageArea.cpp @ 14:9774802fd05f
PostgreSQLStorageArea working
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 09 Jul 2018 20:28:27 +0200 |
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children | 9e419261f1c9 |
rev | line source |
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14
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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) 2017-2018 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 "PostgreSQLStorageArea.h" |
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23 |
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24 #include "../../Framework/Common/FileValue.h" |
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25 #include "../../Framework/PostgreSQL/PostgreSQLTransaction.h" |
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26 |
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27 #include <Plugins/Samples/Common/OrthancPluginCppWrapper.h> |
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28 #include <Core/Logging.h> |
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29 |
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30 |
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31 namespace OrthancDatabases |
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32 { |
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33 IDatabase* PostgreSQLStorageArea::OpenInternal() |
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34 { |
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35 std::auto_ptr<PostgreSQLDatabase> db(new PostgreSQLDatabase(parameters_)); |
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36 |
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37 db->Open(); |
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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(43 /* some arbitrary constant */); |
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42 } |
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43 |
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44 if (clearAll_) |
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45 { |
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46 db->ClearAll(); |
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47 } |
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48 |
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49 { |
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50 PostgreSQLTransaction t(*db); |
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51 |
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52 if (!db->DoesTableExist("StorageArea")) |
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53 { |
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54 db->Execute("CREATE TABLE IF NOT EXISTS StorageArea(" |
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55 "uuid VARCHAR NOT NULL PRIMARY KEY," |
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56 "content OID NOT NULL," |
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57 "type INTEGER NOT NULL)"); |
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58 |
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59 // Automatically remove the large objects associated with the table |
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60 db->Execute("CREATE OR REPLACE RULE StorageAreaDelete AS ON DELETE " |
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61 "TO StorageArea DO SELECT lo_unlink(old.content);"); |
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62 } |
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63 |
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64 t.Commit(); |
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65 } |
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66 |
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67 return db.release(); |
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68 } |
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69 |
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70 |
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71 PostgreSQLStorageArea::PostgreSQLStorageArea(const PostgreSQLParameters& parameters) : |
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72 StorageBackend(new Factory(*this)), |
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73 parameters_(parameters), |
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74 clearAll_(false) |
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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 void PostgreSQLStorageArea::Create(DatabaseManager::Transaction& transaction, |
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80 const std::string& uuid, |
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81 const void* content, |
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82 size_t size, |
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83 OrthancPluginContentType type) |
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84 { |
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85 DatabaseManager::CachedStatement statement( |
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86 STATEMENT_FROM_HERE, GetManager(), |
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87 "INSERT INTO StorageArea VALUES (${uuid}, ${content}, ${type})"); |
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88 |
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89 statement.SetParameterType("uuid", ValueType_Utf8String); |
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90 statement.SetParameterType("content", ValueType_File); |
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91 statement.SetParameterType("type", ValueType_Integer64); |
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92 |
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93 Dictionary args; |
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94 args.SetUtf8Value("uuid", uuid); |
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95 args.SetFileValue("content", content, size); |
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96 args.SetIntegerValue("type", type); |
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97 |
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98 statement.Execute(args); |
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99 } |
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100 |
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101 |
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102 void PostgreSQLStorageArea::Read(void*& content, |
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103 size_t& size, |
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104 DatabaseManager::Transaction& transaction, |
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105 const std::string& uuid, |
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106 OrthancPluginContentType type) |
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107 { |
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108 DatabaseManager::CachedStatement statement( |
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109 STATEMENT_FROM_HERE, GetManager(), |
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110 "SELECT content FROM StorageArea WHERE uuid=${uuid} AND type=${type}"); |
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111 |
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112 statement.SetParameterType("uuid", ValueType_Utf8String); |
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113 statement.SetParameterType("type", ValueType_Integer64); |
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114 |
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115 Dictionary args; |
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116 args.SetUtf8Value("uuid", uuid); |
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117 args.SetIntegerValue("type", type); |
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118 |
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119 statement.Execute(args); |
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120 |
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121 if (statement.IsDone()) |
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122 { |
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123 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource); |
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124 } |
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125 else if (statement.GetResultFieldsCount() != 1 || |
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126 statement.GetResultField(0).GetType() != ValueType_File) |
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127 { |
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128 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database); |
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129 } |
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130 else |
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131 { |
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132 const FileValue& value = dynamic_cast<const FileValue&>(statement.GetResultField(0)); |
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133 ReadFromString(content, size, value.GetContent()); |
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134 } |
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135 } |
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136 |
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137 |
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138 void PostgreSQLStorageArea::Remove(DatabaseManager::Transaction& transaction, |
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139 const std::string& uuid, |
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140 OrthancPluginContentType type) |
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141 { |
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142 DatabaseManager::CachedStatement statement( |
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143 STATEMENT_FROM_HERE, GetManager(), |
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144 "DELETE FROM StorageArea WHERE uuid=${uuid} AND type=${type}"); |
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145 |
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146 statement.SetParameterType("uuid", ValueType_Utf8String); |
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147 statement.SetParameterType("type", ValueType_Integer64); |
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148 |
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149 Dictionary args; |
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150 args.SetUtf8Value("uuid", uuid); |
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151 args.SetIntegerValue("type", type); |
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152 |
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153 statement.Execute(args); |
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154 } |
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155 } |