--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Common/Dictionary.cpp	Wed Jul 04 08:16:29 2018 +0200
@@ -0,0 +1,131 @@
+/**
+ * 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 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/>.
+ **/
+
+
+#include "Dictionary.h"
+
+#include "BinaryStringValue.h"
+#include "Integer64Value.h"
+#include "NullValue.h"
+#include "Utf8StringValue.h"
+
+#include <Core/Logging.h>
+#include <Core/OrthancException.h>
+
+#include <cassert>
+
+namespace OrthancDatabases
+{
+  Dictionary::~Dictionary()
+  {
+    for (Values::iterator it = values_.begin(); 
+         it != values_.end(); ++it)
+    {
+      assert(it->second != NULL);
+      delete it->second;
+    }
+  }
+
+
+  bool Dictionary::HasKey(const std::string& key) const
+  {
+    return values_.find(key) != values_.end();
+  }
+
+
+  void Dictionary::Remove(const std::string& key)
+  {
+    Values::iterator found = values_.find(key);
+
+    if (found != values_.end())
+    {
+      assert(found->second != NULL);
+      delete found->second;
+      values_.erase(found);
+    }
+  }
+
+  
+  void Dictionary::SetValue(const std::string& key,
+                            IValue* value)   // Takes ownership
+  {
+    if (value == NULL)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
+    }
+
+    Values::iterator found = values_.find(key);
+
+    if (found == values_.end())
+    {
+      values_[key] = value;
+    }
+    else
+    {
+      assert(found->second != NULL);
+      delete found->second;
+      found->second = value;
+    }      
+  }
+
+  
+  void Dictionary::SetUtf8Value(const std::string& key,
+                                const std::string& utf8)
+  {
+    SetValue(key, new Utf8StringValue(utf8));
+  }
+
+  
+  void Dictionary::SetBinaryValue(const std::string& key,
+                                  const std::string& binary)
+  {
+    SetValue(key, new BinaryStringValue(binary));
+  }
+
+  
+  void Dictionary::SetIntegerValue(const std::string& key,
+                                   int64_t value)
+  {
+    SetValue(key, new Integer64Value(value));
+  }
+
+  
+  void Dictionary::SetNullValue(const std::string& key)
+  {
+    SetValue(key, new NullValue);
+  }
+
+  
+  const IValue& Dictionary::GetValue(const std::string& key) const
+  {
+    Values::const_iterator found = values_.find(key);
+
+    if (found == values_.end())
+    {
+      LOG(ERROR) << "Inexistent value in a dictionary: " << key;
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_InexistentItem);
+    }
+    else
+    {
+      assert(found->second != NULL);
+      return *found->second;
+    }
+  }
+}