--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Core/SerializationToolbox.cpp	Tue Jun 05 18:25:23 2018 +0200
@@ -0,0 +1,205 @@
+/**
+ * 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 "PrecompiledHeaders.h"
+#include "SerializationToolbox.h"
+
+#include "OrthancException.h"
+
+namespace Orthanc
+{
+  namespace SerializationToolbox
+  {
+    std::string ReadString(const Json::Value& value,
+                           const std::string& field)
+    {
+      if (value.type() != Json::objectValue ||
+          !value.isMember(field.c_str()) ||
+          value[field.c_str()].type() != Json::stringValue)
+      {
+        throw OrthancException(ErrorCode_BadFileFormat);
+      }
+      else
+      {
+        return value[field.c_str()].asString();
+      }
+    }
+
+
+    int ReadInteger(const Json::Value& value,
+                    const std::string& field)
+    {
+      if (value.type() != Json::objectValue ||
+          !value.isMember(field.c_str()) ||
+          (value[field.c_str()].type() != Json::intValue &&
+           value[field.c_str()].type() != Json::uintValue))
+      {
+        throw OrthancException(ErrorCode_BadFileFormat);
+      }
+      else
+      {
+        return value[field.c_str()].asInt();
+      }    
+    }
+
+
+    unsigned int ReadUnsignedInteger(const Json::Value& value,
+                                     const std::string& field)
+    {
+      int tmp = ReadInteger(value, field);
+
+      if (tmp < 0)
+      {
+        throw OrthancException(ErrorCode_BadFileFormat);
+      }
+      else
+      {
+        return static_cast<unsigned int>(tmp);
+      }
+    }
+
+
+    bool ReadBoolean(const Json::Value& value,
+                     const std::string& field)
+    {
+      if (value.type() != Json::objectValue ||
+          !value.isMember(field.c_str()) ||
+          value[field.c_str()].type() != Json::booleanValue)
+      {
+        throw OrthancException(ErrorCode_BadFileFormat);
+      }
+      else
+      {
+        return value[field.c_str()].asBool();
+      }   
+    }
+
+  
+    void ReadArrayOfStrings(std::vector<std::string>& target,
+                            const Json::Value& value,
+                            const std::string& field)
+    {
+      if (value.type() != Json::objectValue ||
+          !value.isMember(field.c_str()) ||
+          value[field.c_str()].type() != Json::arrayValue)
+      {
+        throw OrthancException(ErrorCode_BadFileFormat);
+      }
+
+      target.clear();
+      target.resize(value.size());
+
+      const Json::Value arr = value[field.c_str()];
+    
+      for (Json::Value::ArrayIndex i = 0; i < arr.size(); i++)
+      {
+        if (arr[i].type() != Json::stringValue)
+        {
+          throw OrthancException(ErrorCode_BadFileFormat);        
+        }
+        else
+        {
+          target[i] = arr[i].asString();
+        }
+      }
+    }
+
+
+    void ReadListOfStrings(std::list<std::string>& target,
+                           const Json::Value& value,
+                           const std::string& field)
+    {
+      std::vector<std::string> tmp;
+      ReadArrayOfStrings(tmp, value, field);
+
+      target.clear();
+      for (size_t i = 0; i < tmp.size(); i++)
+      {
+        target.push_back(tmp[i]);
+      }
+    }
+  
+
+    void ReadSetOfStrings(std::set<std::string>& target,
+                          const Json::Value& value,
+                          const std::string& field)
+    {
+      std::vector<std::string> tmp;
+      ReadArrayOfStrings(tmp, value, field);
+
+      target.clear();
+      for (size_t i = 0; i < tmp.size(); i++)
+      {
+        target.insert(tmp[i]);
+      }
+    }
+
+
+    void WriteArrayOfStrings(Json::Value& target,
+                             const std::vector<std::string>& values,
+                             const std::string& field)
+    {
+      if (target.type() != Json::objectValue ||
+          target.isMember(field.c_str()))
+      {
+        throw OrthancException(ErrorCode_BadFileFormat);
+      }
+
+      Json::Value tmp;
+
+      tmp = Json::arrayValue;
+      for (size_t i = 0; i < values.size(); i++)
+      {
+        tmp.append(values[i]);
+      }
+
+      target[field] = tmp;
+    }
+
+
+    void WriteSetOfStrings(Json::Value& target,
+                           const std::set<std::string>& values,
+                           const std::string& field)
+    {
+      Json::Value v = Json::arrayValue;
+
+      for (std::set<std::string>::const_iterator it = values.begin();
+           it != values.end(); ++it)
+      {
+        v.append(*it);
+      }
+      
+      target[field] = v;
+    }
+  }
+}