--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/Search/DatabaseLookup.h	Tue Oct 16 18:00:05 2018 +0200
@@ -0,0 +1,104 @@
+/**
+ * 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 "DicomTagConstraint.h"
+
+namespace Orthanc
+{
+  class DatabaseLookup : public boost::noncopyable
+  {
+  private:
+    class TagInfo
+    {
+    private:
+      DicomTagType  type_;
+      ResourceType  level_;
+
+    public:
+      TagInfo() :
+        type_(DicomTagType_Generic),
+        level_(ResourceType_Instance)
+      {
+      }
+
+      TagInfo(DicomTagType type,
+              ResourceType level) :
+        type_(type),
+        level_(level)
+      {
+      }
+
+      DicomTagType GetType() const
+      {
+        return type_;
+      }
+
+      ResourceType GetLevel() const
+      {
+        return level_;
+      }
+    };
+
+    std::vector<DicomTagConstraint*>  constraints_;
+    std::map<DicomTag, TagInfo>       tags_;
+
+    void LoadTags(ResourceType level);
+
+  public:
+    DatabaseLookup();
+
+    ~DatabaseLookup();
+
+    void Reserve(size_t n)
+    {
+      constraints_.reserve(n);
+    }
+
+    size_t GetConstraintsCount() const
+    {
+      return constraints_.size();
+    }
+
+    const DicomTagConstraint& GetConstraint(size_t index) const;
+
+    void AddConstraint(DicomTagConstraint* constraint);  // Takes ownership
+
+    bool IsMatch(const DicomMap& value);
+
+    void AddDicomConstraint(const DicomTag& tag,
+                            const std::string& dicomQuery,
+                            bool caseSensitivePN);
+  };
+}