--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/Search/DatabaseConstraint.cpp	Tue Dec 18 18:56:55 2018 +0100
@@ -0,0 +1,108 @@
+/**
+ * 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 "../PrecompiledHeadersServer.h"
+#include "DatabaseConstraint.h"
+
+#include "../../Core/OrthancException.h"
+#include "../ServerToolbox.h"
+
+namespace Orthanc
+{
+  DatabaseConstraint::DatabaseConstraint(const DicomTagConstraint& constraint,
+                                         ResourceType level,
+                                         DicomTagType tagType) :
+    level_(level),
+    tag_(constraint.GetTag()),
+    constraintType_(constraint.GetConstraintType()),
+    mandatory_(constraint.IsMandatory())
+  {
+    switch (tagType)
+    {
+      case DicomTagType_Identifier:
+        isIdentifier_ = true;
+        caseSensitive_ = true;
+        break;
+
+      case DicomTagType_Main:
+        isIdentifier_ = false;
+        caseSensitive_ = constraint.IsCaseSensitive();
+        break;
+
+      default:
+        throw OrthancException(ErrorCode_InternalError);
+    }
+
+    values_.reserve(constraint.GetValues().size());
+      
+    for (std::set<std::string>::const_iterator
+           it = constraint.GetValues().begin();
+         it != constraint.GetValues().end(); ++it)
+    {
+      if (isIdentifier_)
+      {
+        values_.push_back(ServerToolbox::NormalizeIdentifier(*it));
+      }
+      else
+      {
+        values_.push_back(*it);
+      }
+    }
+  }
+
+  
+  const std::string& DatabaseConstraint::GetValue(size_t index) const
+  {
+    if (index >= values_.size())
+    {
+      throw OrthancException(ErrorCode_ParameterOutOfRange);
+    }
+    else
+    {
+      return values_[index];
+    }
+  }
+
+
+  const std::string& DatabaseConstraint::GetSingleValue() const
+  {
+    if (values_.size() != 1)
+    {
+      throw OrthancException(ErrorCode_BadSequenceOfCalls);
+    }
+    else
+    {
+      return values_[0];
+    }
+  }
+}