--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Loaders/DicomResourcesLoader.h	Mon Dec 09 13:58:37 2019 +0100
@@ -0,0 +1,220 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * 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
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#pragma once
+
+#if !defined(ORTHANC_ENABLE_DCMTK)
+#  error The macro ORTHANC_ENABLE_DCMTK must be defined
+#endif
+
+#if ORTHANC_ENABLE_DCMTK == 1
+#  include "../Oracle/ParseDicomFromFileCommand.h"
+#  include <Core/DicomParsing/ParsedDicomDir.h>
+#endif
+
+#include "../Oracle/HttpCommand.h"
+#include "../Oracle/OracleCommandExceptionMessage.h"
+#include "../Oracle/OrthancRestApiCommand.h"
+#include "../Oracle/ReadFileCommand.h"
+#include "DicomSource.h"
+#include "ILoaderFactory.h"
+#include "LoadedDicomResources.h"
+#include "OracleScheduler.h"
+
+namespace OrthancStone
+{
+  class DicomResourcesLoader :
+    public ObserverBase<DicomResourcesLoader>,
+    public IObservable
+  {
+  private:
+    class Handler;
+    class StringHandler;
+    class DicomWebHandler;
+    class OrthancHandler;
+    class OrthancInstanceTagsHandler;    
+    class OrthancOneChildInstanceHandler;
+    class OrthancAllChildrenInstancesHandler;
+
+#if ORTHANC_ENABLE_DCMTK == 1
+    class DicomDirHandler;
+#endif
+
+    void Handle(const HttpCommand::SuccessMessage& message);
+
+    void Handle(const OrthancRestApiCommand::SuccessMessage& message);
+
+    void Handle(const ReadFileCommand::SuccessMessage& message);
+
+    void Handle(const OracleCommandExceptionMessage& message);
+
+#if ORTHANC_ENABLE_DCMTK == 1
+    void Handle(const ParseDicomSuccessMessage& message);
+#endif
+
+    void ScheduleLoadOrthancInstanceTags(boost::shared_ptr<LoadedDicomResources> target,
+                                         int priority,
+                                         const DicomSource& source,
+                                         const std::string& instanceId,
+                                         boost::shared_ptr<unsigned int> remainingCommands,
+                                         boost::shared_ptr<Orthanc::IDynamicObject> userPayload);
+
+    void ScheduleLoadOrthancOneChildInstance(boost::shared_ptr<LoadedDicomResources> target,
+                                             int priority,
+                                             const DicomSource& source,
+                                             Orthanc::ResourceType level,
+                                             const std::string& id,
+                                             boost::shared_ptr<unsigned int> remainingCommands,
+                                             boost::shared_ptr<Orthanc::IDynamicObject> userPayload);
+    
+    DicomResourcesLoader(ILoadersContext& context) :
+      context_(context)
+    {
+    }
+
+    ILoadersContext&  context_;
+
+
+  public:
+    class SuccessMessage : public OrthancStone::OriginMessage<DicomResourcesLoader>
+    {
+      ORTHANC_STONE_MESSAGE(__FILE__, __LINE__);
+      
+    private:
+      boost::shared_ptr<LoadedDicomResources>  resources_;
+      int                                      priority_;
+      const DicomSource&                       source_;
+      const Orthanc::IDynamicObject*           userPayload_;
+      
+    public:
+      SuccessMessage(const DicomResourcesLoader& origin,
+                     boost::shared_ptr<LoadedDicomResources> resources,
+                     int priority,
+                     const DicomSource& source,
+                     const Orthanc::IDynamicObject* userPayload) :
+        OriginMessage(origin),
+        resources_(resources),
+        priority_(priority),
+        source_(source),
+        userPayload_(userPayload)
+      {
+      }
+
+      int GetPriority() const
+      {
+        return priority_;
+      }
+
+      const boost::shared_ptr<LoadedDicomResources> GetResources() const
+      {
+        return resources_;
+      }
+
+      const DicomSource& GetDicomSource() const
+      {
+        return source_;
+      }
+
+      bool HasUserPayload() const
+      {
+        return userPayload_ != NULL;
+      }
+
+      const Orthanc::IDynamicObject& GetUserPayload() const;
+    };
+
+
+    class Factory : public ILoaderFactory
+    {
+    public:
+      virtual boost::shared_ptr<IObserver> Create(ILoadersContext::ILock& stone);
+    };
+
+    void ScheduleWado(boost::shared_ptr<LoadedDicomResources> target,
+                      int priority,
+                      const DicomSource& source,
+                      const std::string& uri,
+                      const std::set<Orthanc::DicomTag>& includeTags,
+                      Orthanc::IDynamicObject* userPayload);
+
+    void ScheduleWado(boost::shared_ptr<LoadedDicomResources> target,
+                      int priority,
+                      const DicomSource& source,
+                      const std::string& uri,
+                      Orthanc::IDynamicObject* userPayload)
+    {
+      std::set<Orthanc::DicomTag> includeTags;
+      ScheduleWado(target, priority, source, uri, includeTags, userPayload);
+    }        
+
+    void ScheduleQido(boost::shared_ptr<LoadedDicomResources> target,
+                      int priority,
+                      const DicomSource& source,
+                      Orthanc::ResourceType level,
+                      const Orthanc::DicomMap& filter,
+                      const std::set<Orthanc::DicomTag>& includeTags,
+                      Orthanc::IDynamicObject* userPayload);
+
+    void ScheduleLoadOrthancResources(boost::shared_ptr<LoadedDicomResources> target,
+                                      int priority,
+                                      const DicomSource& source,
+                                      Orthanc::ResourceType topLevel,
+                                      const std::string& topId,
+                                      Orthanc::ResourceType bottomLevel,
+                                      Orthanc::IDynamicObject* userPayload);
+
+    void ScheduleLoadOrthancResource(boost::shared_ptr<LoadedDicomResources> target,
+                                     int priority,
+                                     const DicomSource& source,
+                                     Orthanc::ResourceType level,
+                                     const std::string& id,
+                                     Orthanc::IDynamicObject* userPayload)
+    {
+      ScheduleLoadOrthancResources(target, priority, source, level, id, level, userPayload);
+    }
+
+#if ORTHANC_ENABLE_DCMTK == 1
+    static void GetDicomDirInstances(LoadedDicomResources& target,
+                                     const Orthanc::ParsedDicomDir& dicomDir);
+#endif
+
+    void ScheduleLoadDicomDir(boost::shared_ptr<LoadedDicomResources> target,
+                              int priority,
+                              const DicomSource& source,
+                              const std::string& path,
+                              Orthanc::IDynamicObject* userPayload);
+    
+    void ScheduleLoadDicomFile(boost::shared_ptr<LoadedDicomResources> target,
+                               int priority,
+                               const DicomSource& source,
+                               const std::string& path,
+                               bool includePixelData,
+                               Orthanc::IDynamicObject* userPayload);
+
+    bool ScheduleLoadDicomFile(boost::shared_ptr<LoadedDicomResources> target,
+                               int priority,
+                               const DicomSource& source,
+                               const std::string& dicomDirPath,
+                               const Orthanc::DicomMap& dicomDirEntry,
+                               bool includePixelData,
+                               Orthanc::IDynamicObject* userPayload);
+  };
+}