changeset 2772:f3df536e7366

moving the outdated database plugin sample into the graveyard
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 17 Jul 2018 11:02:18 +0200
parents e226f3a23f2f
children bb63068844ae
files OrthancServer/DatabaseWrapper.h Plugins/Samples/DatabasePlugin/CMakeLists.txt Plugins/Samples/DatabasePlugin/Database.cpp Plugins/Samples/DatabasePlugin/Database.h Plugins/Samples/DatabasePlugin/Plugin.cpp Resources/Graveyard/DatabasePluginSample/CMakeLists.txt Resources/Graveyard/DatabasePluginSample/Database.cpp Resources/Graveyard/DatabasePluginSample/Database.h Resources/Graveyard/DatabasePluginSample/Plugin.cpp
diffstat 9 files changed, 1104 insertions(+), 1097 deletions(-) [+]
line wrap: on
line diff
--- a/OrthancServer/DatabaseWrapper.h	Mon Jul 16 17:09:40 2018 +0200
+++ b/OrthancServer/DatabaseWrapper.h	Tue Jul 17 11:02:18 2018 +0200
@@ -76,6 +76,84 @@
 
     virtual void SetListener(IDatabaseListener& listener);
 
+    virtual bool LookupParent(int64_t& parentId,
+                              int64_t resourceId);
+
+    virtual std::string GetPublicId(int64_t resourceId);
+
+    virtual ResourceType GetResourceType(int64_t resourceId);
+
+    virtual void DeleteResource(int64_t id);
+
+    virtual void GetChanges(std::list<ServerIndexChange>& target /*out*/,
+                            bool& done /*out*/,
+                            int64_t since,
+                            uint32_t maxResults);
+
+    virtual void GetLastChange(std::list<ServerIndexChange>& target /*out*/);
+
+    virtual SQLite::ITransaction* StartTransaction()
+    {
+      return new SQLite::Transaction(db_);
+    }
+
+    virtual void FlushToDisk()
+    {
+      db_.FlushToDisk();
+    }
+
+    virtual bool HasFlushToDisk() const
+    {
+      return true;
+    }
+
+    virtual void ClearChanges()
+    {
+      ClearTable("Changes");
+    }
+
+    virtual void ClearExportedResources()
+    {
+      ClearTable("ExportedResources");
+    }
+
+    virtual void GetAllMetadata(std::map<MetadataType, std::string>& target,
+                                int64_t id);
+
+    virtual unsigned int GetDatabaseVersion()
+    {
+      return version_;
+    }
+
+    virtual void Upgrade(unsigned int targetVersion,
+                         IStorageArea& storageArea);
+
+
+    /**
+     * The methods declared below are for unit testing only!
+     **/
+
+    const char* GetErrorMessage() const
+    {
+      return db_.GetErrorMessage();
+    }
+
+    void GetChildren(std::list<std::string>& childrenPublicIds,
+                     int64_t id);
+
+    int64_t GetTableRecordCount(const std::string& table);
+    
+    bool GetParentPublicId(std::string& target,
+                           int64_t id);
+
+
+
+    /**
+     * Until Orthanc 1.4.0, the methods below were part of the
+     * "DatabaseWrapperBase" class, that is now placed in the
+     * graveyard.
+     **/
+
     virtual void SetGlobalProperty(GlobalProperty property,
                                    const std::string& value)
     {
@@ -101,21 +179,12 @@
       return base_.LookupResource(id, type, publicId);
     }
 
-    virtual bool LookupParent(int64_t& parentId,
-                              int64_t resourceId);
-
-    virtual std::string GetPublicId(int64_t resourceId);
-
-    virtual ResourceType GetResourceType(int64_t resourceId);
-
     virtual void AttachChild(int64_t parent,
                              int64_t child)
     {
       base_.AttachChild(parent, child);
     }
 
-    virtual void DeleteResource(int64_t id);
-
     virtual void SetMetadata(int64_t id,
                              MetadataType type,
                              const std::string& value)
@@ -210,13 +279,6 @@
       base_.LogChange(internalId, change);
     }
 
-    virtual void GetChanges(std::list<ServerIndexChange>& target /*out*/,
-                            bool& done /*out*/,
-                            int64_t since,
-                            uint32_t maxResults);
-
-    virtual void GetLastChange(std::list<ServerIndexChange>& target /*out*/);
-
     virtual void LogExportedResource(const ExportedResource& resource)
     {
       base_.LogExportedResource(resource);
@@ -292,31 +354,6 @@
       base_.SetProtectedPatient(internalId, isProtected);
     }
 
-    virtual SQLite::ITransaction* StartTransaction()
-    {
-      return new SQLite::Transaction(db_);
-    }
-
-    virtual void FlushToDisk()
-    {
-      db_.FlushToDisk();
-    }
-
-    virtual bool HasFlushToDisk() const
-    {
-      return true;
-    }
-
-    virtual void ClearChanges()
-    {
-      ClearTable("Changes");
-    }
-
-    virtual void ClearExportedResources()
-    {
-      ClearTable("ExportedResources");
-    }
-
     virtual bool IsExistingResource(int64_t internalId)
     {
       return base_.IsExistingResource(internalId);
@@ -342,35 +379,5 @@
     }
 
 
-    virtual void GetAllMetadata(std::map<MetadataType, std::string>& target,
-                                int64_t id);
-
-    virtual unsigned int GetDatabaseVersion()
-    {
-      return version_;
-    }
-
-    virtual void Upgrade(unsigned int targetVersion,
-                         IStorageArea& storageArea);
-
-
-
-    /**
-     * The methods declared below are for unit testing only!
-     **/
-
-    const char* GetErrorMessage() const
-    {
-      return db_.GetErrorMessage();
-    }
-
-    void GetChildren(std::list<std::string>& childrenPublicIds,
-                     int64_t id);
-
-    int64_t GetTableRecordCount(const std::string& table);
-    
-    bool GetParentPublicId(std::string& target,
-                           int64_t id);
-
   };
 }
--- a/Plugins/Samples/DatabasePlugin/CMakeLists.txt	Mon Jul 16 17:09:40 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,74 +0,0 @@
-cmake_minimum_required(VERSION 2.8)
-
-project(SampleDatabasePlugin)
-
-# Parameters of the build
-SET(SAMPLE_DATABASE_VERSION "0.0" CACHE STRING "Version of the plugin")
-SET(STATIC_BUILD OFF CACHE BOOL "Static build of the third-party libraries (necessary for Windows)")
-SET(ALLOW_DOWNLOADS OFF CACHE BOOL "Allow CMake to download packages")
-SET(STANDALONE_BUILD ON)
-
-# Advanced parameters to fine-tune linking against system libraries
-SET(USE_SYSTEM_BOOST ON CACHE BOOL "Use the system version of Boost")
-SET(USE_SYSTEM_JSONCPP ON CACHE BOOL "Use the system version of JsonCpp")
-SET(USE_SYSTEM_SQLITE ON CACHE BOOL "Use the system version of SQLite")
-
-set(SAMPLES_ROOT ${CMAKE_SOURCE_DIR}/..)
-include(${SAMPLES_ROOT}/Common/OrthancPlugins.cmake)
-
-include(${ORTHANC_ROOT}/Resources/CMake/BoostConfiguration.cmake)
-include(${ORTHANC_ROOT}/Resources/CMake/JsonCppConfiguration.cmake)
-include(${ORTHANC_ROOT}/Resources/CMake/SQLiteConfiguration.cmake)
-
-EmbedResources(
-  --system-exception  # Use "std::runtime_error" instead of "OrthancException" for embedded resources
-  PREPARE_DATABASE  ${ORTHANC_ROOT}/OrthancServer/PrepareDatabase.sql
-  )
-
-message("Setting the version of the plugin to ${SAMPLE_DATABASE_VERSION}")
-
-add_definitions(
-  -DORTHANC_SQLITE_STANDALONE=1
-  -DORTHANC_ENABLE_BASE64=0
-  -DORTHANC_ENABLE_LOGGING=0
-  -DORTHANC_ENABLE_MD5=0
-  -DORTHANC_ENABLE_PLUGINS=1
-  -DORTHANC_ENABLE_PUGIXML=0
-  -DORTHANC_SANDBOXED=0
-  -DSAMPLE_DATABASE_VERSION="${SAMPLE_DATABASE_VERSION}"
-  )
-
-add_library(SampleDatabase SHARED 
-  ${BOOST_SOURCES}
-  ${JSONCPP_SOURCES}
-  ${SQLITE_SOURCES}
-  ${AUTOGENERATED_SOURCES}
-
-  ${ORTHANC_ROOT}/Core/DicomFormat/DicomArray.cpp
-  ${ORTHANC_ROOT}/Core/DicomFormat/DicomMap.cpp
-  ${ORTHANC_ROOT}/Core/DicomFormat/DicomTag.cpp
-  ${ORTHANC_ROOT}/Core/DicomFormat/DicomValue.cpp
-  ${ORTHANC_ROOT}/Core/Enumerations.cpp
-  ${ORTHANC_ROOT}/Core/SQLite/Connection.cpp
-  ${ORTHANC_ROOT}/Core/SQLite/FunctionContext.cpp
-  ${ORTHANC_ROOT}/Core/SQLite/Statement.cpp
-  ${ORTHANC_ROOT}/Core/SQLite/StatementId.cpp
-  ${ORTHANC_ROOT}/Core/SQLite/StatementReference.cpp
-  ${ORTHANC_ROOT}/Core/SQLite/Transaction.cpp
-  ${ORTHANC_ROOT}/Core/Toolbox.cpp
-  ${ORTHANC_ROOT}/OrthancServer/DatabaseWrapperBase.cpp
-  ${ORTHANC_ROOT}/Plugins/Engine/PluginsEnumerations.cpp
-
-  Database.cpp
-  Plugin.cpp
-  )
-
-set_target_properties(SampleDatabase PROPERTIES 
-  VERSION ${SAMPLE_DATABASE_VERSION} 
-  SOVERSION ${SAMPLE_DATABASE_VERSION})
-
-install(
-  TARGETS SampleDatabase
-  RUNTIME DESTINATION lib    # Destination for Windows
-  LIBRARY DESTINATION share/orthanc/plugins    # Destination for Linux
-  )
--- a/Plugins/Samples/DatabasePlugin/Database.cpp	Mon Jul 16 17:09:40 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,565 +0,0 @@
-/**
- * Orthanc - A Lightweight, RESTful DICOM Store
- * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
- * Department, University Hospital of Liege, Belgium
- * Copyright (C) 2017-2018 Osimis S.A., Belgium
- *
- * This program is free software: you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * In addition, as a special exception, the copyright holders of this
- * program give permission to link the code of its release with the
- * OpenSSL project's "OpenSSL" library (or with modified versions of it
- * that use the same license as the "OpenSSL" library), and distribute
- * the linked executables. You must obey the GNU General Public License
- * in all respects for all of the code used other than "OpenSSL". If you
- * modify file(s) with this exception, you may extend this exception to
- * your version of the file(s), but you are not obligated to do so. If
- * you do not wish to do so, delete this exception statement from your
- * version. If you delete this exception statement from all source files
- * in the program, then also delete it here.
- * 
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- **/
-
-
-#include "Database.h"
-
-#include "../../../Core/DicomFormat/DicomArray.h"
-
-#include <EmbeddedResources.h>
-#include <boost/lexical_cast.hpp>
-
-
-namespace Internals
-{
-  class SignalFileDeleted : public Orthanc::SQLite::IScalarFunction
-  {
-  private:
-    OrthancPlugins::DatabaseBackendOutput&  output_;
-
-  public:
-    SignalFileDeleted(OrthancPlugins::DatabaseBackendOutput&  output) : output_(output)
-    {
-    }
-
-    virtual const char* GetName() const
-    {
-      return "SignalFileDeleted";
-    }
-
-    virtual unsigned int GetCardinality() const
-    {
-      return 7;
-    }
-
-    virtual void Compute(Orthanc::SQLite::FunctionContext& context)
-    {
-      std::string uncompressedMD5, compressedMD5;
-
-      if (!context.IsNullValue(5))
-      {
-        uncompressedMD5 = context.GetStringValue(5);
-      }
-
-      if (!context.IsNullValue(6))
-      {
-        compressedMD5 = context.GetStringValue(6);
-      }
-      
-      output_.SignalDeletedAttachment(context.GetStringValue(0),
-                                      context.GetIntValue(1),
-                                      context.GetInt64Value(2),
-                                      uncompressedMD5,
-                                      context.GetIntValue(3),
-                                      context.GetInt64Value(4),
-                                      compressedMD5);
-    }
-  };
-
-
-  class SignalResourceDeleted : public Orthanc::SQLite::IScalarFunction
-  {
-  private:
-    OrthancPlugins::DatabaseBackendOutput&  output_;
-
-  public:
-    SignalResourceDeleted(OrthancPlugins::DatabaseBackendOutput&  output) : output_(output)
-    {
-    }
-
-    virtual const char* GetName() const
-    {
-      return "SignalResourceDeleted";
-    }
-
-    virtual unsigned int GetCardinality() const
-    {
-      return 2;
-    }
-
-    virtual void Compute(Orthanc::SQLite::FunctionContext& context)
-    {
-      output_.SignalDeletedResource(context.GetStringValue(0),
-                                    Orthanc::Plugins::Convert(static_cast<Orthanc::ResourceType>(context.GetIntValue(1))));
-    }
-  };
-}
-
-
-class Database::SignalRemainingAncestor : public Orthanc::SQLite::IScalarFunction
-{
-private:
-  bool hasRemainingAncestor_;
-  std::string remainingPublicId_;
-  OrthancPluginResourceType remainingType_;
-
-public:
-  SignalRemainingAncestor() : 
-    hasRemainingAncestor_(false),
-    remainingType_(OrthancPluginResourceType_Instance)  // Some dummy value
-  {
-  }
-
-  void Reset()
-  {
-    hasRemainingAncestor_ = false;
-  }
-
-  virtual const char* GetName() const
-  {
-    return "SignalRemainingAncestor";
-  }
-
-  virtual unsigned int GetCardinality() const
-  {
-    return 2;
-  }
-
-  virtual void Compute(Orthanc::SQLite::FunctionContext& context)
-  {
-    if (!hasRemainingAncestor_ ||
-        remainingType_ >= context.GetIntValue(1))
-    {
-      hasRemainingAncestor_ = true;
-      remainingPublicId_ = context.GetStringValue(0);
-      remainingType_ = Orthanc::Plugins::Convert(static_cast<Orthanc::ResourceType>(context.GetIntValue(1)));
-    }
-  }
-
-  bool HasRemainingAncestor() const
-  {
-    return hasRemainingAncestor_;
-  }
-
-  const std::string& GetRemainingAncestorId() const
-  {
-    assert(hasRemainingAncestor_);
-    return remainingPublicId_;
-  }
-
-  OrthancPluginResourceType GetRemainingAncestorType() const
-  {
-    assert(hasRemainingAncestor_);
-    return remainingType_;
-  }
-};
-
-
-
-Database::Database(const std::string& path) : 
-  path_(path),
-  base_(db_),
-  signalRemainingAncestor_(NULL)
-{
-}
-
-
-void Database::Open()
-{
-  db_.Open(path_);
-
-  db_.Execute("PRAGMA ENCODING=\"UTF-8\";");
-
-  // http://www.sqlite.org/pragma.html
-  db_.Execute("PRAGMA SYNCHRONOUS=NORMAL;");
-  db_.Execute("PRAGMA JOURNAL_MODE=WAL;");
-  db_.Execute("PRAGMA LOCKING_MODE=EXCLUSIVE;");
-  db_.Execute("PRAGMA WAL_AUTOCHECKPOINT=1000;");
-  //db_.Execute("PRAGMA TEMP_STORE=memory");
-
-  if (!db_.DoesTableExist("GlobalProperties"))
-  {
-    std::string query;
-    Orthanc::EmbeddedResources::GetFileResource(query, Orthanc::EmbeddedResources::PREPARE_DATABASE);
-    db_.Execute(query);
-  }
-
-  signalRemainingAncestor_ = new SignalRemainingAncestor;
-  db_.Register(signalRemainingAncestor_);
-  db_.Register(new Internals::SignalFileDeleted(GetOutput()));
-  db_.Register(new Internals::SignalResourceDeleted(GetOutput()));
-}
-
-
-void Database::Close()
-{
-  db_.Close();
-}
-
-
-void Database::AddAttachment(int64_t id,
-                             const OrthancPluginAttachment& attachment)
-{
-  Orthanc::FileInfo info(attachment.uuid,
-                         static_cast<Orthanc::FileContentType>(attachment.contentType),
-                         attachment.uncompressedSize,
-                         attachment.uncompressedHash,
-                         static_cast<Orthanc::CompressionType>(attachment.compressionType),
-                         attachment.compressedSize,
-                         attachment.compressedHash);
-  base_.AddAttachment(id, info);
-}
-
-
-void Database::DeleteResource(int64_t id)
-{
-  signalRemainingAncestor_->Reset();
-
-  Orthanc::SQLite::Statement s(db_, SQLITE_FROM_HERE, "DELETE FROM Resources WHERE internalId=?");
-  s.BindInt64(0, id);
-  s.Run();
-
-  if (signalRemainingAncestor_->HasRemainingAncestor())
-  {
-    GetOutput().SignalRemainingAncestor(signalRemainingAncestor_->GetRemainingAncestorId(),
-                                        signalRemainingAncestor_->GetRemainingAncestorType());
-  }
-}
-
-
-static void Answer(OrthancPlugins::DatabaseBackendOutput& output,
-                   const Orthanc::ServerIndexChange& change)
-{
-  output.AnswerChange(change.GetSeq(), 
-                      change.GetChangeType(),
-                      Orthanc::Plugins::Convert(change.GetResourceType()),
-                      change.GetPublicId(),
-                      change.GetDate());
-}
-
-
-static void Answer(OrthancPlugins::DatabaseBackendOutput& output,
-                   const Orthanc::ExportedResource& resource)
-{
-  output.AnswerExportedResource(resource.GetSeq(),
-                                Orthanc::Plugins::Convert(resource.GetResourceType()),
-                                resource.GetPublicId(),
-                                resource.GetModality(),
-                                resource.GetDate(),
-                                resource.GetPatientId(),
-                                resource.GetStudyInstanceUid(),
-                                resource.GetSeriesInstanceUid(),
-                                resource.GetSopInstanceUid());
-}
-
-
-void Database::GetChanges(bool& done /*out*/,
-                          int64_t since,
-                          uint32_t maxResults)
-{
-  typedef std::list<Orthanc::ServerIndexChange> Changes;
-
-  Changes changes;
-  base_.GetChanges(changes, done, since, maxResults);
-
-  for (Changes::const_iterator it = changes.begin(); it != changes.end(); ++it)
-  {
-    Answer(GetOutput(), *it);
-  }
-}
-
-
-void Database::GetExportedResources(bool& done /*out*/,
-                                    int64_t since,
-                                    uint32_t maxResults)
-{
-  typedef std::list<Orthanc::ExportedResource> Resources;
-
-  Resources resources;
-  base_.GetExportedResources(resources, done, since, maxResults);
-
-  for (Resources::const_iterator it = resources.begin(); it != resources.end(); ++it)
-  {
-    Answer(GetOutput(), *it);
-  }
-}
-
-
-void Database::GetLastChange()
-{
-  std::list<Orthanc::ServerIndexChange> change;
-  Orthanc::ErrorCode code = base_.GetLastChange(change);
-  
-  if (code != Orthanc::ErrorCode_Success)
-  {
-    throw OrthancPlugins::DatabaseException(static_cast<OrthancPluginErrorCode>(code));
-  }
-
-  if (!change.empty())
-  {
-    Answer(GetOutput(), change.front());
-  }
-}
-
-
-void Database::GetLastExportedResource()
-{
-  std::list<Orthanc::ExportedResource> resource;
-  base_.GetLastExportedResource(resource);
-  
-  if (!resource.empty())
-  {
-    Answer(GetOutput(), resource.front());
-  }
-}
-
-
-void Database::GetMainDicomTags(int64_t id)
-{
-  Orthanc::DicomMap tags;
-  base_.GetMainDicomTags(tags, id);
-
-  Orthanc::DicomArray arr(tags);
-  for (size_t i = 0; i < arr.GetSize(); i++)
-  {
-    GetOutput().AnswerDicomTag(arr.GetElement(i).GetTag().GetGroup(),
-                               arr.GetElement(i).GetTag().GetElement(),
-                               arr.GetElement(i).GetValue().GetContent());
-  }
-}
-
-
-std::string Database::GetPublicId(int64_t resourceId)
-{
-  std::string id;
-  if (base_.GetPublicId(id, resourceId))
-  {
-    return id;
-  }
-  else
-  {
-    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_UnknownResource);
-  }
-}
-
-
-OrthancPluginResourceType Database::GetResourceType(int64_t resourceId)
-{
-  Orthanc::ResourceType  result;
-  Orthanc::ErrorCode  code = base_.GetResourceType(result, resourceId);
-
-  if (code == Orthanc::ErrorCode_Success)
-  {
-    return Orthanc::Plugins::Convert(result);
-  }
-  else
-  {
-    throw OrthancPlugins::DatabaseException(static_cast<OrthancPluginErrorCode>(code));
-  }
-}
-
-
-
-template <typename I>
-static void ConvertList(std::list<int32_t>& target,
-                        const std::list<I>& source)
-{
-  for (typename std::list<I>::const_iterator 
-         it = source.begin(); it != source.end(); ++it)
-  {
-    target.push_back(*it);
-  }
-}
-
-
-void Database::ListAvailableMetadata(std::list<int32_t>& target /*out*/,
-                                     int64_t id)
-{
-  std::list<Orthanc::MetadataType> tmp;
-  base_.ListAvailableMetadata(tmp, id);
-  ConvertList(target, tmp);
-}
-
-
-void Database::ListAvailableAttachments(std::list<int32_t>& target /*out*/,
-                                        int64_t id)
-{
-  std::list<Orthanc::FileContentType> tmp;
-  base_.ListAvailableAttachments(tmp, id);
-  ConvertList(target, tmp);
-}
-
-
-void Database::LogChange(const OrthancPluginChange& change)
-{
-  int64_t id;
-  OrthancPluginResourceType type;
-  if (!LookupResource(id, type, change.publicId) ||
-      type != change.resourceType)
-  {
-    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_DatabasePlugin);
-  }
-
-  Orthanc::ServerIndexChange tmp(change.seq,
-                                 static_cast<Orthanc::ChangeType>(change.changeType),
-                                 Orthanc::Plugins::Convert(change.resourceType),
-                                 change.publicId,
-                                 change.date);
-
-  base_.LogChange(id, tmp);
-}
-
-
-void Database::LogExportedResource(const OrthancPluginExportedResource& resource) 
-{
-  Orthanc::ExportedResource tmp(resource.seq,
-                                Orthanc::Plugins::Convert(resource.resourceType),
-                                resource.publicId,
-                                resource.modality,
-                                resource.date,
-                                resource.patientId,
-                                resource.studyInstanceUid,
-                                resource.seriesInstanceUid,
-                                resource.sopInstanceUid);
-
-  base_.LogExportedResource(tmp);
-}
-
-    
-bool Database::LookupAttachment(int64_t id,
-                                int32_t contentType)
-{
-  Orthanc::FileInfo attachment;
-  if (base_.LookupAttachment(attachment, id, static_cast<Orthanc::FileContentType>(contentType)))
-  {
-    GetOutput().AnswerAttachment(attachment.GetUuid(),
-                                 attachment.GetContentType(),
-                                 attachment.GetUncompressedSize(),
-                                 attachment.GetUncompressedMD5(),
-                                 attachment.GetCompressionType(),
-                                 attachment.GetCompressedSize(),
-                                 attachment.GetCompressedMD5());
-    return true;
-  }
-  else
-  {
-    return false;
-  }
-}
-
-
-bool Database::LookupParent(int64_t& parentId /*out*/,
-                            int64_t resourceId)
-{
-  bool found;
-  Orthanc::ErrorCode code = base_.LookupParent(found, parentId, resourceId);
-
-  if (code == Orthanc::ErrorCode_Success)
-  {
-    return found;
-  }
-  else
-  {
-    throw OrthancPlugins::DatabaseException(static_cast<OrthancPluginErrorCode>(code));
-  }
-}
-
-
-bool Database::LookupResource(int64_t& id /*out*/,
-                              OrthancPluginResourceType& type /*out*/,
-                              const char* publicId)
-{
-  Orthanc::ResourceType tmp;
-  if (base_.LookupResource(id, tmp, publicId))
-  {
-    type = Orthanc::Plugins::Convert(tmp);
-    return true;
-  }
-  else
-  {
-    return false;
-  }
-}
-
-
-void Database::StartTransaction()
-{
-  transaction_.reset(new Orthanc::SQLite::Transaction(db_));
-  transaction_->Begin();
-}
-
-
-void Database::RollbackTransaction()
-{
-  transaction_->Rollback();
-  transaction_.reset(NULL);
-}
-
-
-void Database::CommitTransaction()
-{
-  transaction_->Commit();
-  transaction_.reset(NULL);
-}
-
-
-uint32_t Database::GetDatabaseVersion()
-{
-  std::string version;
-
-  if (!LookupGlobalProperty(version, Orthanc::GlobalProperty_DatabaseSchemaVersion))
-  {
-    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_InternalError);
-  }
-
-  try
-  {
-    return boost::lexical_cast<uint32_t>(version);
-  }
-  catch (boost::bad_lexical_cast&)
-  {
-    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_InternalError);
-  }
-}
-
-
-void Database::UpgradeDatabase(uint32_t  targetVersion,
-                               OrthancPluginStorageArea* storageArea)
-{
-  if (targetVersion == 6)
-  {
-    OrthancPluginErrorCode code = OrthancPluginReconstructMainDicomTags(GetOutput().GetContext(), storageArea, 
-                                                                        OrthancPluginResourceType_Study);
-    if (code == OrthancPluginErrorCode_Success)
-    {
-      code = OrthancPluginReconstructMainDicomTags(GetOutput().GetContext(), storageArea, 
-                                                   OrthancPluginResourceType_Series);
-    }
-
-    if (code != OrthancPluginErrorCode_Success)
-    {
-      throw OrthancPlugins::DatabaseException(code);
-    }
-
-    base_.SetGlobalProperty(Orthanc::GlobalProperty_DatabaseSchemaVersion, "6");
-  }
-}
--- a/Plugins/Samples/DatabasePlugin/Database.h	Mon Jul 16 17:09:40 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,285 +0,0 @@
-/**
- * Orthanc - A Lightweight, RESTful DICOM Store
- * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
- * Department, University Hospital of Liege, Belgium
- * Copyright (C) 2017-2018 Osimis S.A., Belgium
- *
- * This program is free software: you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * In addition, as a special exception, the copyright holders of this
- * program give permission to link the code of its release with the
- * OpenSSL project's "OpenSSL" library (or with modified versions of it
- * that use the same license as the "OpenSSL" library), and distribute
- * the linked executables. You must obey the GNU General Public License
- * in all respects for all of the code used other than "OpenSSL". If you
- * modify file(s) with this exception, you may extend this exception to
- * your version of the file(s), but you are not obligated to do so. If
- * you do not wish to do so, delete this exception statement from your
- * version. If you delete this exception statement from all source files
- * in the program, then also delete it here.
- * 
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- **/
-
-
-#pragma once
-
-#include <orthanc/OrthancCppDatabasePlugin.h>
-
-#include "../../../Core/SQLite/Connection.h"
-#include "../../../Core/SQLite/Transaction.h"
-#include "../../../OrthancServer/DatabaseWrapperBase.h"
-#include "../../Engine/PluginsEnumerations.h"
-
-#include <memory>
-
-class Database : public OrthancPlugins::IDatabaseBackend
-{
-private:
-  class SignalRemainingAncestor;
-
-  std::string                   path_;
-  Orthanc::SQLite::Connection   db_;
-  Orthanc::DatabaseWrapperBase  base_;
-  SignalRemainingAncestor*      signalRemainingAncestor_;
-
-  std::auto_ptr<Orthanc::SQLite::Transaction>  transaction_;
-
-public:
-  Database(const std::string& path);
-
-  virtual void Open();
-
-  virtual void Close();
-
-  virtual void AddAttachment(int64_t id,
-                             const OrthancPluginAttachment& attachment);
-
-  virtual void AttachChild(int64_t parent,
-                           int64_t child)
-  {
-    base_.AttachChild(parent, child);
-  }
-
-  virtual void ClearChanges()
-  {
-    db_.Execute("DELETE FROM Changes");    
-  }
-
-  virtual void ClearExportedResources()
-  {
-    db_.Execute("DELETE FROM ExportedResources");    
-  }
-
-  virtual int64_t CreateResource(const char* publicId,
-                                 OrthancPluginResourceType type)
-  {
-    return base_.CreateResource(publicId, Orthanc::Plugins::Convert(type));
-  }
-
-  virtual void DeleteAttachment(int64_t id,
-                                int32_t attachment)
-  {
-    base_.DeleteAttachment(id, static_cast<Orthanc::FileContentType>(attachment));
-  }
-
-  virtual void DeleteMetadata(int64_t id,
-                              int32_t metadataType)
-  {
-    base_.DeleteMetadata(id, static_cast<Orthanc::MetadataType>(metadataType));
-  }
-
-  virtual void DeleteResource(int64_t id);
-
-  virtual void GetAllInternalIds(std::list<int64_t>& target,
-                                 OrthancPluginResourceType resourceType)
-  {
-    base_.GetAllInternalIds(target, Orthanc::Plugins::Convert(resourceType));
-  }
-
-  virtual void GetAllPublicIds(std::list<std::string>& target,
-                               OrthancPluginResourceType resourceType)
-  {
-    base_.GetAllPublicIds(target, Orthanc::Plugins::Convert(resourceType));
-  }
-
-  virtual void GetAllPublicIds(std::list<std::string>& target,
-                               OrthancPluginResourceType resourceType,
-                               uint64_t since,
-                               uint64_t limit)
-  {
-    base_.GetAllPublicIds(target, Orthanc::Plugins::Convert(resourceType), since, limit);
-  }
-
-  virtual void GetChanges(bool& done /*out*/,
-                          int64_t since,
-                          uint32_t maxResults);
-
-  virtual void GetChildrenInternalId(std::list<int64_t>& target /*out*/,
-                                     int64_t id)
-  {
-    base_.GetChildrenInternalId(target, id);
-  }
-
-  virtual void GetChildrenPublicId(std::list<std::string>& target /*out*/,
-                                   int64_t id)
-  {
-    base_.GetChildrenPublicId(target, id);
-  }
-
-  virtual void GetExportedResources(bool& done /*out*/,
-                                    int64_t since,
-                                    uint32_t maxResults);
-
-  virtual void GetLastChange();
-
-  virtual void GetLastExportedResource();
-
-  virtual void GetMainDicomTags(int64_t id);
-
-  virtual std::string GetPublicId(int64_t resourceId);
-
-  virtual uint64_t GetResourceCount(OrthancPluginResourceType resourceType)
-  {
-    return base_.GetResourceCount(Orthanc::Plugins::Convert(resourceType));
-  }
-
-  virtual OrthancPluginResourceType GetResourceType(int64_t resourceId);
-
-  virtual uint64_t GetTotalCompressedSize()
-  {
-    return base_.GetTotalCompressedSize();
-  }
-    
-  virtual uint64_t GetTotalUncompressedSize()
-  {
-    return base_.GetTotalUncompressedSize();
-  }
-
-  virtual bool IsExistingResource(int64_t internalId)
-  {
-    return base_.IsExistingResource(internalId);
-  }
-
-  virtual bool IsProtectedPatient(int64_t internalId)
-  {
-    return base_.IsProtectedPatient(internalId);
-  }
-
-  virtual void ListAvailableMetadata(std::list<int32_t>& target /*out*/,
-                                     int64_t id);
-
-  virtual void ListAvailableAttachments(std::list<int32_t>& target /*out*/,
-                                        int64_t id);
-
-  virtual void LogChange(const OrthancPluginChange& change);
-
-  virtual void LogExportedResource(const OrthancPluginExportedResource& resource);
-    
-  virtual bool LookupAttachment(int64_t id,
-                                int32_t contentType);
-
-  virtual bool LookupGlobalProperty(std::string& target /*out*/,
-                                    int32_t property)
-  {
-    return base_.LookupGlobalProperty(target, static_cast<Orthanc::GlobalProperty>(property));
-  }
-
-  virtual void LookupIdentifier(std::list<int64_t>& target /*out*/,
-                                OrthancPluginResourceType level,
-                                uint16_t group,
-                                uint16_t element,
-                                OrthancPluginIdentifierConstraint constraint,
-                                const char* value)
-  {
-    base_.LookupIdentifier(target, Orthanc::Plugins::Convert(level),
-                           Orthanc::DicomTag(group, element), 
-                           Orthanc::Plugins::Convert(constraint), value);
-  }
-
-  virtual bool LookupMetadata(std::string& target /*out*/,
-                              int64_t id,
-                              int32_t metadataType)
-  {
-    return base_.LookupMetadata(target, id, static_cast<Orthanc::MetadataType>(metadataType));
-  }
-
-  virtual bool LookupParent(int64_t& parentId /*out*/,
-                            int64_t resourceId);
-
-  virtual bool LookupResource(int64_t& id /*out*/,
-                              OrthancPluginResourceType& type /*out*/,
-                              const char* publicId);
-
-  virtual bool SelectPatientToRecycle(int64_t& internalId /*out*/)
-  {
-    return base_.SelectPatientToRecycle(internalId);
-  }
-
-  virtual bool SelectPatientToRecycle(int64_t& internalId /*out*/,
-                                      int64_t patientIdToAvoid)
-  {
-    return base_.SelectPatientToRecycle(internalId, patientIdToAvoid);
-  }
-
-
-  virtual void SetGlobalProperty(int32_t property,
-                                 const char* value)
-  {
-    base_.SetGlobalProperty(static_cast<Orthanc::GlobalProperty>(property), value);
-  }
-
-  virtual void SetMainDicomTag(int64_t id,
-                               uint16_t group,
-                               uint16_t element,
-                               const char* value)
-  {
-    base_.SetMainDicomTag(id, Orthanc::DicomTag(group, element), value);
-  }
-
-  virtual void SetIdentifierTag(int64_t id,
-                                uint16_t group,
-                                uint16_t element,
-                                const char* value)
-  {
-    base_.SetIdentifierTag(id, Orthanc::DicomTag(group, element), value);
-  }
-
-  virtual void SetMetadata(int64_t id,
-                           int32_t metadataType,
-                           const char* value)
-  {
-    base_.SetMetadata(id, static_cast<Orthanc::MetadataType>(metadataType), value);
-  }
-
-  virtual void SetProtectedPatient(int64_t internalId, 
-                                   bool isProtected)
-  {
-    base_.SetProtectedPatient(internalId, isProtected);
-  }
-
-  virtual void StartTransaction();
-
-  virtual void RollbackTransaction();
-
-  virtual void CommitTransaction();
-
-  virtual uint32_t GetDatabaseVersion();
-
-  virtual void UpgradeDatabase(uint32_t  targetVersion,
-                               OrthancPluginStorageArea* storageArea);
-
-  virtual void ClearMainDicomTags(int64_t internalId)
-  {
-    base_.ClearMainDicomTags(internalId);
-  }
-};
--- a/Plugins/Samples/DatabasePlugin/Plugin.cpp	Mon Jul 16 17:09:40 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,102 +0,0 @@
-/**
- * Orthanc - A Lightweight, RESTful DICOM Store
- * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
- * Department, University Hospital of Liege, Belgium
- * Copyright (C) 2017-2018 Osimis S.A., Belgium
- *
- * This program is free software: you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, either version 3 of the
- * License, or (at your option) any later version.
- *
- * In addition, as a special exception, the copyright holders of this
- * program give permission to link the code of its release with the
- * OpenSSL project's "OpenSSL" library (or with modified versions of it
- * that use the same license as the "OpenSSL" library), and distribute
- * the linked executables. You must obey the GNU General Public License
- * in all respects for all of the code used other than "OpenSSL". If you
- * modify file(s) with this exception, you may extend this exception to
- * your version of the file(s), but you are not obligated to do so. If
- * you do not wish to do so, delete this exception statement from your
- * version. If you delete this exception statement from all source files
- * in the program, then also delete it here.
- * 
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- **/
-
-
-#include "Database.h"
-
-#include <memory>
-#include <iostream>
-#include <boost/algorithm/string/predicate.hpp>
-
-static OrthancPluginContext*  context_ = NULL;
-static std::auto_ptr<OrthancPlugins::IDatabaseBackend>  backend_;
-
-
-extern "C"
-{
-  ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c)
-  {
-    context_ = c;
-    OrthancPluginLogWarning(context_, "Sample plugin is initializing");
-
-    /* Check the version of the Orthanc core */
-    if (OrthancPluginCheckVersion(c) == 0)
-    {
-      char info[256];
-      sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin",
-              c->orthancVersion,
-              ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
-              ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
-              ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
-      OrthancPluginLogError(context_, info);
-      return -1;
-    }
-
-    std::string path = "SampleDatabase.sqlite";
-    uint32_t argCount = OrthancPluginGetCommandLineArgumentsCount(context_);
-    for (uint32_t i = 0; i < argCount; i++)
-    {
-      char* tmp = OrthancPluginGetCommandLineArgument(context_, i);
-      std::string argument(tmp);
-      OrthancPluginFreeString(context_, tmp);
-
-      if (boost::starts_with(argument, "--database="))
-      {
-        path = argument.substr(11);
-      }
-    }
-
-    std::string s = "Using the following SQLite database: " + path;
-    OrthancPluginLogWarning(context_, s.c_str());
-
-    backend_.reset(new Database(path));
-    OrthancPlugins::DatabaseBackendAdapter::Register(context_, *backend_);
-
-    return 0;
-  }
-
-  ORTHANC_PLUGINS_API void OrthancPluginFinalize()
-  {
-    backend_.reset(NULL);
-  }
-
-  ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
-  {
-    return "sample-database";
-  }
-
-
-  ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
-  {
-    return "1.0";
-  }
-}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/Graveyard/DatabasePluginSample/CMakeLists.txt	Tue Jul 17 11:02:18 2018 +0200
@@ -0,0 +1,74 @@
+cmake_minimum_required(VERSION 2.8)
+
+project(SampleDatabasePlugin)
+
+# Parameters of the build
+SET(SAMPLE_DATABASE_VERSION "0.0" CACHE STRING "Version of the plugin")
+SET(STATIC_BUILD OFF CACHE BOOL "Static build of the third-party libraries (necessary for Windows)")
+SET(ALLOW_DOWNLOADS OFF CACHE BOOL "Allow CMake to download packages")
+SET(STANDALONE_BUILD ON)
+
+# Advanced parameters to fine-tune linking against system libraries
+SET(USE_SYSTEM_BOOST ON CACHE BOOL "Use the system version of Boost")
+SET(USE_SYSTEM_JSONCPP ON CACHE BOOL "Use the system version of JsonCpp")
+SET(USE_SYSTEM_SQLITE ON CACHE BOOL "Use the system version of SQLite")
+
+set(SAMPLES_ROOT ${CMAKE_SOURCE_DIR}/..)
+include(${SAMPLES_ROOT}/Common/OrthancPlugins.cmake)
+
+include(${ORTHANC_ROOT}/Resources/CMake/BoostConfiguration.cmake)
+include(${ORTHANC_ROOT}/Resources/CMake/JsonCppConfiguration.cmake)
+include(${ORTHANC_ROOT}/Resources/CMake/SQLiteConfiguration.cmake)
+
+EmbedResources(
+  --system-exception  # Use "std::runtime_error" instead of "OrthancException" for embedded resources
+  PREPARE_DATABASE  ${ORTHANC_ROOT}/OrthancServer/PrepareDatabase.sql
+  )
+
+message("Setting the version of the plugin to ${SAMPLE_DATABASE_VERSION}")
+
+add_definitions(
+  -DORTHANC_SQLITE_STANDALONE=1
+  -DORTHANC_ENABLE_BASE64=0
+  -DORTHANC_ENABLE_LOGGING=0
+  -DORTHANC_ENABLE_MD5=0
+  -DORTHANC_ENABLE_PLUGINS=1
+  -DORTHANC_ENABLE_PUGIXML=0
+  -DORTHANC_SANDBOXED=0
+  -DSAMPLE_DATABASE_VERSION="${SAMPLE_DATABASE_VERSION}"
+  )
+
+add_library(SampleDatabase SHARED 
+  ${BOOST_SOURCES}
+  ${JSONCPP_SOURCES}
+  ${SQLITE_SOURCES}
+  ${AUTOGENERATED_SOURCES}
+
+  ${ORTHANC_ROOT}/Core/DicomFormat/DicomArray.cpp
+  ${ORTHANC_ROOT}/Core/DicomFormat/DicomMap.cpp
+  ${ORTHANC_ROOT}/Core/DicomFormat/DicomTag.cpp
+  ${ORTHANC_ROOT}/Core/DicomFormat/DicomValue.cpp
+  ${ORTHANC_ROOT}/Core/Enumerations.cpp
+  ${ORTHANC_ROOT}/Core/SQLite/Connection.cpp
+  ${ORTHANC_ROOT}/Core/SQLite/FunctionContext.cpp
+  ${ORTHANC_ROOT}/Core/SQLite/Statement.cpp
+  ${ORTHANC_ROOT}/Core/SQLite/StatementId.cpp
+  ${ORTHANC_ROOT}/Core/SQLite/StatementReference.cpp
+  ${ORTHANC_ROOT}/Core/SQLite/Transaction.cpp
+  ${ORTHANC_ROOT}/Core/Toolbox.cpp
+  ${ORTHANC_ROOT}/OrthancServer/DatabaseWrapperBase.cpp
+  ${ORTHANC_ROOT}/Plugins/Engine/PluginsEnumerations.cpp
+
+  Database.cpp
+  Plugin.cpp
+  )
+
+set_target_properties(SampleDatabase PROPERTIES 
+  VERSION ${SAMPLE_DATABASE_VERSION} 
+  SOVERSION ${SAMPLE_DATABASE_VERSION})
+
+install(
+  TARGETS SampleDatabase
+  RUNTIME DESTINATION lib    # Destination for Windows
+  LIBRARY DESTINATION share/orthanc/plugins    # Destination for Linux
+  )
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/Graveyard/DatabasePluginSample/Database.cpp	Tue Jul 17 11:02:18 2018 +0200
@@ -0,0 +1,565 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "Database.h"
+
+#include "../../../Core/DicomFormat/DicomArray.h"
+
+#include <EmbeddedResources.h>
+#include <boost/lexical_cast.hpp>
+
+
+namespace Internals
+{
+  class SignalFileDeleted : public Orthanc::SQLite::IScalarFunction
+  {
+  private:
+    OrthancPlugins::DatabaseBackendOutput&  output_;
+
+  public:
+    SignalFileDeleted(OrthancPlugins::DatabaseBackendOutput&  output) : output_(output)
+    {
+    }
+
+    virtual const char* GetName() const
+    {
+      return "SignalFileDeleted";
+    }
+
+    virtual unsigned int GetCardinality() const
+    {
+      return 7;
+    }
+
+    virtual void Compute(Orthanc::SQLite::FunctionContext& context)
+    {
+      std::string uncompressedMD5, compressedMD5;
+
+      if (!context.IsNullValue(5))
+      {
+        uncompressedMD5 = context.GetStringValue(5);
+      }
+
+      if (!context.IsNullValue(6))
+      {
+        compressedMD5 = context.GetStringValue(6);
+      }
+      
+      output_.SignalDeletedAttachment(context.GetStringValue(0),
+                                      context.GetIntValue(1),
+                                      context.GetInt64Value(2),
+                                      uncompressedMD5,
+                                      context.GetIntValue(3),
+                                      context.GetInt64Value(4),
+                                      compressedMD5);
+    }
+  };
+
+
+  class SignalResourceDeleted : public Orthanc::SQLite::IScalarFunction
+  {
+  private:
+    OrthancPlugins::DatabaseBackendOutput&  output_;
+
+  public:
+    SignalResourceDeleted(OrthancPlugins::DatabaseBackendOutput&  output) : output_(output)
+    {
+    }
+
+    virtual const char* GetName() const
+    {
+      return "SignalResourceDeleted";
+    }
+
+    virtual unsigned int GetCardinality() const
+    {
+      return 2;
+    }
+
+    virtual void Compute(Orthanc::SQLite::FunctionContext& context)
+    {
+      output_.SignalDeletedResource(context.GetStringValue(0),
+                                    Orthanc::Plugins::Convert(static_cast<Orthanc::ResourceType>(context.GetIntValue(1))));
+    }
+  };
+}
+
+
+class Database::SignalRemainingAncestor : public Orthanc::SQLite::IScalarFunction
+{
+private:
+  bool hasRemainingAncestor_;
+  std::string remainingPublicId_;
+  OrthancPluginResourceType remainingType_;
+
+public:
+  SignalRemainingAncestor() : 
+    hasRemainingAncestor_(false),
+    remainingType_(OrthancPluginResourceType_Instance)  // Some dummy value
+  {
+  }
+
+  void Reset()
+  {
+    hasRemainingAncestor_ = false;
+  }
+
+  virtual const char* GetName() const
+  {
+    return "SignalRemainingAncestor";
+  }
+
+  virtual unsigned int GetCardinality() const
+  {
+    return 2;
+  }
+
+  virtual void Compute(Orthanc::SQLite::FunctionContext& context)
+  {
+    if (!hasRemainingAncestor_ ||
+        remainingType_ >= context.GetIntValue(1))
+    {
+      hasRemainingAncestor_ = true;
+      remainingPublicId_ = context.GetStringValue(0);
+      remainingType_ = Orthanc::Plugins::Convert(static_cast<Orthanc::ResourceType>(context.GetIntValue(1)));
+    }
+  }
+
+  bool HasRemainingAncestor() const
+  {
+    return hasRemainingAncestor_;
+  }
+
+  const std::string& GetRemainingAncestorId() const
+  {
+    assert(hasRemainingAncestor_);
+    return remainingPublicId_;
+  }
+
+  OrthancPluginResourceType GetRemainingAncestorType() const
+  {
+    assert(hasRemainingAncestor_);
+    return remainingType_;
+  }
+};
+
+
+
+Database::Database(const std::string& path) : 
+  path_(path),
+  base_(db_),
+  signalRemainingAncestor_(NULL)
+{
+}
+
+
+void Database::Open()
+{
+  db_.Open(path_);
+
+  db_.Execute("PRAGMA ENCODING=\"UTF-8\";");
+
+  // http://www.sqlite.org/pragma.html
+  db_.Execute("PRAGMA SYNCHRONOUS=NORMAL;");
+  db_.Execute("PRAGMA JOURNAL_MODE=WAL;");
+  db_.Execute("PRAGMA LOCKING_MODE=EXCLUSIVE;");
+  db_.Execute("PRAGMA WAL_AUTOCHECKPOINT=1000;");
+  //db_.Execute("PRAGMA TEMP_STORE=memory");
+
+  if (!db_.DoesTableExist("GlobalProperties"))
+  {
+    std::string query;
+    Orthanc::EmbeddedResources::GetFileResource(query, Orthanc::EmbeddedResources::PREPARE_DATABASE);
+    db_.Execute(query);
+  }
+
+  signalRemainingAncestor_ = new SignalRemainingAncestor;
+  db_.Register(signalRemainingAncestor_);
+  db_.Register(new Internals::SignalFileDeleted(GetOutput()));
+  db_.Register(new Internals::SignalResourceDeleted(GetOutput()));
+}
+
+
+void Database::Close()
+{
+  db_.Close();
+}
+
+
+void Database::AddAttachment(int64_t id,
+                             const OrthancPluginAttachment& attachment)
+{
+  Orthanc::FileInfo info(attachment.uuid,
+                         static_cast<Orthanc::FileContentType>(attachment.contentType),
+                         attachment.uncompressedSize,
+                         attachment.uncompressedHash,
+                         static_cast<Orthanc::CompressionType>(attachment.compressionType),
+                         attachment.compressedSize,
+                         attachment.compressedHash);
+  base_.AddAttachment(id, info);
+}
+
+
+void Database::DeleteResource(int64_t id)
+{
+  signalRemainingAncestor_->Reset();
+
+  Orthanc::SQLite::Statement s(db_, SQLITE_FROM_HERE, "DELETE FROM Resources WHERE internalId=?");
+  s.BindInt64(0, id);
+  s.Run();
+
+  if (signalRemainingAncestor_->HasRemainingAncestor())
+  {
+    GetOutput().SignalRemainingAncestor(signalRemainingAncestor_->GetRemainingAncestorId(),
+                                        signalRemainingAncestor_->GetRemainingAncestorType());
+  }
+}
+
+
+static void Answer(OrthancPlugins::DatabaseBackendOutput& output,
+                   const Orthanc::ServerIndexChange& change)
+{
+  output.AnswerChange(change.GetSeq(), 
+                      change.GetChangeType(),
+                      Orthanc::Plugins::Convert(change.GetResourceType()),
+                      change.GetPublicId(),
+                      change.GetDate());
+}
+
+
+static void Answer(OrthancPlugins::DatabaseBackendOutput& output,
+                   const Orthanc::ExportedResource& resource)
+{
+  output.AnswerExportedResource(resource.GetSeq(),
+                                Orthanc::Plugins::Convert(resource.GetResourceType()),
+                                resource.GetPublicId(),
+                                resource.GetModality(),
+                                resource.GetDate(),
+                                resource.GetPatientId(),
+                                resource.GetStudyInstanceUid(),
+                                resource.GetSeriesInstanceUid(),
+                                resource.GetSopInstanceUid());
+}
+
+
+void Database::GetChanges(bool& done /*out*/,
+                          int64_t since,
+                          uint32_t maxResults)
+{
+  typedef std::list<Orthanc::ServerIndexChange> Changes;
+
+  Changes changes;
+  base_.GetChanges(changes, done, since, maxResults);
+
+  for (Changes::const_iterator it = changes.begin(); it != changes.end(); ++it)
+  {
+    Answer(GetOutput(), *it);
+  }
+}
+
+
+void Database::GetExportedResources(bool& done /*out*/,
+                                    int64_t since,
+                                    uint32_t maxResults)
+{
+  typedef std::list<Orthanc::ExportedResource> Resources;
+
+  Resources resources;
+  base_.GetExportedResources(resources, done, since, maxResults);
+
+  for (Resources::const_iterator it = resources.begin(); it != resources.end(); ++it)
+  {
+    Answer(GetOutput(), *it);
+  }
+}
+
+
+void Database::GetLastChange()
+{
+  std::list<Orthanc::ServerIndexChange> change;
+  Orthanc::ErrorCode code = base_.GetLastChange(change);
+  
+  if (code != Orthanc::ErrorCode_Success)
+  {
+    throw OrthancPlugins::DatabaseException(static_cast<OrthancPluginErrorCode>(code));
+  }
+
+  if (!change.empty())
+  {
+    Answer(GetOutput(), change.front());
+  }
+}
+
+
+void Database::GetLastExportedResource()
+{
+  std::list<Orthanc::ExportedResource> resource;
+  base_.GetLastExportedResource(resource);
+  
+  if (!resource.empty())
+  {
+    Answer(GetOutput(), resource.front());
+  }
+}
+
+
+void Database::GetMainDicomTags(int64_t id)
+{
+  Orthanc::DicomMap tags;
+  base_.GetMainDicomTags(tags, id);
+
+  Orthanc::DicomArray arr(tags);
+  for (size_t i = 0; i < arr.GetSize(); i++)
+  {
+    GetOutput().AnswerDicomTag(arr.GetElement(i).GetTag().GetGroup(),
+                               arr.GetElement(i).GetTag().GetElement(),
+                               arr.GetElement(i).GetValue().GetContent());
+  }
+}
+
+
+std::string Database::GetPublicId(int64_t resourceId)
+{
+  std::string id;
+  if (base_.GetPublicId(id, resourceId))
+  {
+    return id;
+  }
+  else
+  {
+    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_UnknownResource);
+  }
+}
+
+
+OrthancPluginResourceType Database::GetResourceType(int64_t resourceId)
+{
+  Orthanc::ResourceType  result;
+  Orthanc::ErrorCode  code = base_.GetResourceType(result, resourceId);
+
+  if (code == Orthanc::ErrorCode_Success)
+  {
+    return Orthanc::Plugins::Convert(result);
+  }
+  else
+  {
+    throw OrthancPlugins::DatabaseException(static_cast<OrthancPluginErrorCode>(code));
+  }
+}
+
+
+
+template <typename I>
+static void ConvertList(std::list<int32_t>& target,
+                        const std::list<I>& source)
+{
+  for (typename std::list<I>::const_iterator 
+         it = source.begin(); it != source.end(); ++it)
+  {
+    target.push_back(*it);
+  }
+}
+
+
+void Database::ListAvailableMetadata(std::list<int32_t>& target /*out*/,
+                                     int64_t id)
+{
+  std::list<Orthanc::MetadataType> tmp;
+  base_.ListAvailableMetadata(tmp, id);
+  ConvertList(target, tmp);
+}
+
+
+void Database::ListAvailableAttachments(std::list<int32_t>& target /*out*/,
+                                        int64_t id)
+{
+  std::list<Orthanc::FileContentType> tmp;
+  base_.ListAvailableAttachments(tmp, id);
+  ConvertList(target, tmp);
+}
+
+
+void Database::LogChange(const OrthancPluginChange& change)
+{
+  int64_t id;
+  OrthancPluginResourceType type;
+  if (!LookupResource(id, type, change.publicId) ||
+      type != change.resourceType)
+  {
+    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_DatabasePlugin);
+  }
+
+  Orthanc::ServerIndexChange tmp(change.seq,
+                                 static_cast<Orthanc::ChangeType>(change.changeType),
+                                 Orthanc::Plugins::Convert(change.resourceType),
+                                 change.publicId,
+                                 change.date);
+
+  base_.LogChange(id, tmp);
+}
+
+
+void Database::LogExportedResource(const OrthancPluginExportedResource& resource) 
+{
+  Orthanc::ExportedResource tmp(resource.seq,
+                                Orthanc::Plugins::Convert(resource.resourceType),
+                                resource.publicId,
+                                resource.modality,
+                                resource.date,
+                                resource.patientId,
+                                resource.studyInstanceUid,
+                                resource.seriesInstanceUid,
+                                resource.sopInstanceUid);
+
+  base_.LogExportedResource(tmp);
+}
+
+    
+bool Database::LookupAttachment(int64_t id,
+                                int32_t contentType)
+{
+  Orthanc::FileInfo attachment;
+  if (base_.LookupAttachment(attachment, id, static_cast<Orthanc::FileContentType>(contentType)))
+  {
+    GetOutput().AnswerAttachment(attachment.GetUuid(),
+                                 attachment.GetContentType(),
+                                 attachment.GetUncompressedSize(),
+                                 attachment.GetUncompressedMD5(),
+                                 attachment.GetCompressionType(),
+                                 attachment.GetCompressedSize(),
+                                 attachment.GetCompressedMD5());
+    return true;
+  }
+  else
+  {
+    return false;
+  }
+}
+
+
+bool Database::LookupParent(int64_t& parentId /*out*/,
+                            int64_t resourceId)
+{
+  bool found;
+  Orthanc::ErrorCode code = base_.LookupParent(found, parentId, resourceId);
+
+  if (code == Orthanc::ErrorCode_Success)
+  {
+    return found;
+  }
+  else
+  {
+    throw OrthancPlugins::DatabaseException(static_cast<OrthancPluginErrorCode>(code));
+  }
+}
+
+
+bool Database::LookupResource(int64_t& id /*out*/,
+                              OrthancPluginResourceType& type /*out*/,
+                              const char* publicId)
+{
+  Orthanc::ResourceType tmp;
+  if (base_.LookupResource(id, tmp, publicId))
+  {
+    type = Orthanc::Plugins::Convert(tmp);
+    return true;
+  }
+  else
+  {
+    return false;
+  }
+}
+
+
+void Database::StartTransaction()
+{
+  transaction_.reset(new Orthanc::SQLite::Transaction(db_));
+  transaction_->Begin();
+}
+
+
+void Database::RollbackTransaction()
+{
+  transaction_->Rollback();
+  transaction_.reset(NULL);
+}
+
+
+void Database::CommitTransaction()
+{
+  transaction_->Commit();
+  transaction_.reset(NULL);
+}
+
+
+uint32_t Database::GetDatabaseVersion()
+{
+  std::string version;
+
+  if (!LookupGlobalProperty(version, Orthanc::GlobalProperty_DatabaseSchemaVersion))
+  {
+    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_InternalError);
+  }
+
+  try
+  {
+    return boost::lexical_cast<uint32_t>(version);
+  }
+  catch (boost::bad_lexical_cast&)
+  {
+    throw OrthancPlugins::DatabaseException(OrthancPluginErrorCode_InternalError);
+  }
+}
+
+
+void Database::UpgradeDatabase(uint32_t  targetVersion,
+                               OrthancPluginStorageArea* storageArea)
+{
+  if (targetVersion == 6)
+  {
+    OrthancPluginErrorCode code = OrthancPluginReconstructMainDicomTags(GetOutput().GetContext(), storageArea, 
+                                                                        OrthancPluginResourceType_Study);
+    if (code == OrthancPluginErrorCode_Success)
+    {
+      code = OrthancPluginReconstructMainDicomTags(GetOutput().GetContext(), storageArea, 
+                                                   OrthancPluginResourceType_Series);
+    }
+
+    if (code != OrthancPluginErrorCode_Success)
+    {
+      throw OrthancPlugins::DatabaseException(code);
+    }
+
+    base_.SetGlobalProperty(Orthanc::GlobalProperty_DatabaseSchemaVersion, "6");
+  }
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/Graveyard/DatabasePluginSample/Database.h	Tue Jul 17 11:02:18 2018 +0200
@@ -0,0 +1,285 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#include <orthanc/OrthancCppDatabasePlugin.h>
+
+#include "../../../Core/SQLite/Connection.h"
+#include "../../../Core/SQLite/Transaction.h"
+#include "../../../OrthancServer/DatabaseWrapperBase.h"
+#include "../../Engine/PluginsEnumerations.h"
+
+#include <memory>
+
+class Database : public OrthancPlugins::IDatabaseBackend
+{
+private:
+  class SignalRemainingAncestor;
+
+  std::string                   path_;
+  Orthanc::SQLite::Connection   db_;
+  Orthanc::DatabaseWrapperBase  base_;
+  SignalRemainingAncestor*      signalRemainingAncestor_;
+
+  std::auto_ptr<Orthanc::SQLite::Transaction>  transaction_;
+
+public:
+  Database(const std::string& path);
+
+  virtual void Open();
+
+  virtual void Close();
+
+  virtual void AddAttachment(int64_t id,
+                             const OrthancPluginAttachment& attachment);
+
+  virtual void AttachChild(int64_t parent,
+                           int64_t child)
+  {
+    base_.AttachChild(parent, child);
+  }
+
+  virtual void ClearChanges()
+  {
+    db_.Execute("DELETE FROM Changes");    
+  }
+
+  virtual void ClearExportedResources()
+  {
+    db_.Execute("DELETE FROM ExportedResources");    
+  }
+
+  virtual int64_t CreateResource(const char* publicId,
+                                 OrthancPluginResourceType type)
+  {
+    return base_.CreateResource(publicId, Orthanc::Plugins::Convert(type));
+  }
+
+  virtual void DeleteAttachment(int64_t id,
+                                int32_t attachment)
+  {
+    base_.DeleteAttachment(id, static_cast<Orthanc::FileContentType>(attachment));
+  }
+
+  virtual void DeleteMetadata(int64_t id,
+                              int32_t metadataType)
+  {
+    base_.DeleteMetadata(id, static_cast<Orthanc::MetadataType>(metadataType));
+  }
+
+  virtual void DeleteResource(int64_t id);
+
+  virtual void GetAllInternalIds(std::list<int64_t>& target,
+                                 OrthancPluginResourceType resourceType)
+  {
+    base_.GetAllInternalIds(target, Orthanc::Plugins::Convert(resourceType));
+  }
+
+  virtual void GetAllPublicIds(std::list<std::string>& target,
+                               OrthancPluginResourceType resourceType)
+  {
+    base_.GetAllPublicIds(target, Orthanc::Plugins::Convert(resourceType));
+  }
+
+  virtual void GetAllPublicIds(std::list<std::string>& target,
+                               OrthancPluginResourceType resourceType,
+                               uint64_t since,
+                               uint64_t limit)
+  {
+    base_.GetAllPublicIds(target, Orthanc::Plugins::Convert(resourceType), since, limit);
+  }
+
+  virtual void GetChanges(bool& done /*out*/,
+                          int64_t since,
+                          uint32_t maxResults);
+
+  virtual void GetChildrenInternalId(std::list<int64_t>& target /*out*/,
+                                     int64_t id)
+  {
+    base_.GetChildrenInternalId(target, id);
+  }
+
+  virtual void GetChildrenPublicId(std::list<std::string>& target /*out*/,
+                                   int64_t id)
+  {
+    base_.GetChildrenPublicId(target, id);
+  }
+
+  virtual void GetExportedResources(bool& done /*out*/,
+                                    int64_t since,
+                                    uint32_t maxResults);
+
+  virtual void GetLastChange();
+
+  virtual void GetLastExportedResource();
+
+  virtual void GetMainDicomTags(int64_t id);
+
+  virtual std::string GetPublicId(int64_t resourceId);
+
+  virtual uint64_t GetResourceCount(OrthancPluginResourceType resourceType)
+  {
+    return base_.GetResourceCount(Orthanc::Plugins::Convert(resourceType));
+  }
+
+  virtual OrthancPluginResourceType GetResourceType(int64_t resourceId);
+
+  virtual uint64_t GetTotalCompressedSize()
+  {
+    return base_.GetTotalCompressedSize();
+  }
+    
+  virtual uint64_t GetTotalUncompressedSize()
+  {
+    return base_.GetTotalUncompressedSize();
+  }
+
+  virtual bool IsExistingResource(int64_t internalId)
+  {
+    return base_.IsExistingResource(internalId);
+  }
+
+  virtual bool IsProtectedPatient(int64_t internalId)
+  {
+    return base_.IsProtectedPatient(internalId);
+  }
+
+  virtual void ListAvailableMetadata(std::list<int32_t>& target /*out*/,
+                                     int64_t id);
+
+  virtual void ListAvailableAttachments(std::list<int32_t>& target /*out*/,
+                                        int64_t id);
+
+  virtual void LogChange(const OrthancPluginChange& change);
+
+  virtual void LogExportedResource(const OrthancPluginExportedResource& resource);
+    
+  virtual bool LookupAttachment(int64_t id,
+                                int32_t contentType);
+
+  virtual bool LookupGlobalProperty(std::string& target /*out*/,
+                                    int32_t property)
+  {
+    return base_.LookupGlobalProperty(target, static_cast<Orthanc::GlobalProperty>(property));
+  }
+
+  virtual void LookupIdentifier(std::list<int64_t>& target /*out*/,
+                                OrthancPluginResourceType level,
+                                uint16_t group,
+                                uint16_t element,
+                                OrthancPluginIdentifierConstraint constraint,
+                                const char* value)
+  {
+    base_.LookupIdentifier(target, Orthanc::Plugins::Convert(level),
+                           Orthanc::DicomTag(group, element), 
+                           Orthanc::Plugins::Convert(constraint), value);
+  }
+
+  virtual bool LookupMetadata(std::string& target /*out*/,
+                              int64_t id,
+                              int32_t metadataType)
+  {
+    return base_.LookupMetadata(target, id, static_cast<Orthanc::MetadataType>(metadataType));
+  }
+
+  virtual bool LookupParent(int64_t& parentId /*out*/,
+                            int64_t resourceId);
+
+  virtual bool LookupResource(int64_t& id /*out*/,
+                              OrthancPluginResourceType& type /*out*/,
+                              const char* publicId);
+
+  virtual bool SelectPatientToRecycle(int64_t& internalId /*out*/)
+  {
+    return base_.SelectPatientToRecycle(internalId);
+  }
+
+  virtual bool SelectPatientToRecycle(int64_t& internalId /*out*/,
+                                      int64_t patientIdToAvoid)
+  {
+    return base_.SelectPatientToRecycle(internalId, patientIdToAvoid);
+  }
+
+
+  virtual void SetGlobalProperty(int32_t property,
+                                 const char* value)
+  {
+    base_.SetGlobalProperty(static_cast<Orthanc::GlobalProperty>(property), value);
+  }
+
+  virtual void SetMainDicomTag(int64_t id,
+                               uint16_t group,
+                               uint16_t element,
+                               const char* value)
+  {
+    base_.SetMainDicomTag(id, Orthanc::DicomTag(group, element), value);
+  }
+
+  virtual void SetIdentifierTag(int64_t id,
+                                uint16_t group,
+                                uint16_t element,
+                                const char* value)
+  {
+    base_.SetIdentifierTag(id, Orthanc::DicomTag(group, element), value);
+  }
+
+  virtual void SetMetadata(int64_t id,
+                           int32_t metadataType,
+                           const char* value)
+  {
+    base_.SetMetadata(id, static_cast<Orthanc::MetadataType>(metadataType), value);
+  }
+
+  virtual void SetProtectedPatient(int64_t internalId, 
+                                   bool isProtected)
+  {
+    base_.SetProtectedPatient(internalId, isProtected);
+  }
+
+  virtual void StartTransaction();
+
+  virtual void RollbackTransaction();
+
+  virtual void CommitTransaction();
+
+  virtual uint32_t GetDatabaseVersion();
+
+  virtual void UpgradeDatabase(uint32_t  targetVersion,
+                               OrthancPluginStorageArea* storageArea);
+
+  virtual void ClearMainDicomTags(int64_t internalId)
+  {
+    base_.ClearMainDicomTags(internalId);
+  }
+};
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/Graveyard/DatabasePluginSample/Plugin.cpp	Tue Jul 17 11:02:18 2018 +0200
@@ -0,0 +1,102 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2018 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * In addition, as a special exception, the copyright holders of this
+ * program give permission to link the code of its release with the
+ * OpenSSL project's "OpenSSL" library (or with modified versions of it
+ * that use the same license as the "OpenSSL" library), and distribute
+ * the linked executables. You must obey the GNU General Public License
+ * in all respects for all of the code used other than "OpenSSL". If you
+ * modify file(s) with this exception, you may extend this exception to
+ * your version of the file(s), but you are not obligated to do so. If
+ * you do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source files
+ * in the program, then also delete it here.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "Database.h"
+
+#include <memory>
+#include <iostream>
+#include <boost/algorithm/string/predicate.hpp>
+
+static OrthancPluginContext*  context_ = NULL;
+static std::auto_ptr<OrthancPlugins::IDatabaseBackend>  backend_;
+
+
+extern "C"
+{
+  ORTHANC_PLUGINS_API int32_t OrthancPluginInitialize(OrthancPluginContext* c)
+  {
+    context_ = c;
+    OrthancPluginLogWarning(context_, "Sample plugin is initializing");
+
+    /* Check the version of the Orthanc core */
+    if (OrthancPluginCheckVersion(c) == 0)
+    {
+      char info[256];
+      sprintf(info, "Your version of Orthanc (%s) must be above %d.%d.%d to run this plugin",
+              c->orthancVersion,
+              ORTHANC_PLUGINS_MINIMAL_MAJOR_NUMBER,
+              ORTHANC_PLUGINS_MINIMAL_MINOR_NUMBER,
+              ORTHANC_PLUGINS_MINIMAL_REVISION_NUMBER);
+      OrthancPluginLogError(context_, info);
+      return -1;
+    }
+
+    std::string path = "SampleDatabase.sqlite";
+    uint32_t argCount = OrthancPluginGetCommandLineArgumentsCount(context_);
+    for (uint32_t i = 0; i < argCount; i++)
+    {
+      char* tmp = OrthancPluginGetCommandLineArgument(context_, i);
+      std::string argument(tmp);
+      OrthancPluginFreeString(context_, tmp);
+
+      if (boost::starts_with(argument, "--database="))
+      {
+        path = argument.substr(11);
+      }
+    }
+
+    std::string s = "Using the following SQLite database: " + path;
+    OrthancPluginLogWarning(context_, s.c_str());
+
+    backend_.reset(new Database(path));
+    OrthancPlugins::DatabaseBackendAdapter::Register(context_, *backend_);
+
+    return 0;
+  }
+
+  ORTHANC_PLUGINS_API void OrthancPluginFinalize()
+  {
+    backend_.reset(NULL);
+  }
+
+  ORTHANC_PLUGINS_API const char* OrthancPluginGetName()
+  {
+    return "sample-database";
+  }
+
+
+  ORTHANC_PLUGINS_API const char* OrthancPluginGetVersion()
+  {
+    return "1.0";
+  }
+}