--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/Database/Compatibility/SetOfResources.cpp	Sat Jan 05 16:09:21 2019 +0100
@@ -0,0 +1,161 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * 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 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 "../../PrecompiledHeadersServer.h"
+#include "SetOfResources.h"
+
+#include "../../../Core/OrthancException.h"
+
+
+namespace Orthanc
+{
+  namespace Compatibility
+  {
+    void SetOfResources::Intersect(const std::list<int64_t>& resources)
+    {
+      if (resources_.get() == NULL)
+      {
+        resources_.reset(new Resources);
+
+        for (std::list<int64_t>::const_iterator
+               it = resources.begin(); it != resources.end(); ++it)
+        {
+          resources_->insert(*it);
+        }
+      }
+      else
+      {
+        std::auto_ptr<Resources> filtered(new Resources);
+
+        for (std::list<int64_t>::const_iterator
+               it = resources.begin(); it != resources.end(); ++it)
+        {
+          if (resources_->find(*it) != resources_->end())
+          {
+            filtered->insert(*it);
+          }
+        }
+
+        resources_ = filtered;
+      }
+    }
+
+
+    void SetOfResources::GoDown()
+    {
+      if (level_ == ResourceType_Instance)
+      {
+        throw OrthancException(ErrorCode_BadSequenceOfCalls);
+      }
+
+      if (resources_.get() != NULL)
+      {
+        std::auto_ptr<Resources> children(new Resources);
+
+        for (Resources::const_iterator it = resources_->begin(); 
+             it != resources_->end(); ++it)
+        {
+          std::list<int64_t> tmp;
+          database_.GetChildrenInternalId(tmp, *it);
+
+          for (std::list<int64_t>::const_iterator
+                 child = tmp.begin(); child != tmp.end(); ++child)
+          {
+            children->insert(*child);
+          }
+        }
+
+        resources_ = children;
+      }
+
+      switch (level_)
+      {
+        case ResourceType_Patient:
+          level_ = ResourceType_Study;
+          break;
+
+        case ResourceType_Study:
+          level_ = ResourceType_Series;
+          break;
+
+        case ResourceType_Series:
+          level_ = ResourceType_Instance;
+          break;
+
+        default:
+          throw OrthancException(ErrorCode_InternalError);
+      }
+    }
+
+
+    void SetOfResources::Flatten(std::list<std::string>& result)
+    {
+      result.clear();
+      
+      if (resources_.get() == NULL)
+      {
+        // All the resources of this level are part of the filter
+        database_.GetAllPublicIds(result, level_);
+      }
+      else
+      {
+        for (Resources::const_iterator it = resources_->begin(); 
+             it != resources_->end(); ++it)
+        {
+          result.push_back(database_.GetPublicId(*it));
+        }
+      }
+    }
+
+
+    void SetOfResources::Flatten(ILookupResources& compatibility,
+                                 std::list<int64_t>& result)
+    {
+      result.clear();
+      
+      if (resources_.get() == NULL)
+      {
+        // All the resources of this level are part of the filter
+        compatibility.GetAllInternalIds(result, level_);
+      }
+      else
+      {
+        for (Resources::const_iterator it = resources_->begin(); 
+             it != resources_->end(); ++it)
+        {
+          result.push_back(*it);
+        }
+      }
+    }
+  }
+}