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comparison Core/Toolbox.cpp @ 1045:0bfeeb6d340f

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json to xml conversion with pugixml
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 18 Jul 2014 16:41:10 +0200
parents 509e146c3cb3
children 64f1842aae2e
comparison
equal deleted inserted replaced
1044:6d90e2bcab60 1045:0bfeeb6d340f
81 } 81 }
82 } 82 }
83 #endif 83 #endif
84 84
85 85
86 #if ORTHANC_PUGIXML_ENABLED == 1
87 #include "ChunkedBuffer.h"
88 #include <pugixml.hpp>
89 #endif
90
91
86 namespace Orthanc 92 namespace Orthanc
87 { 93 {
88 static bool finish; 94 static bool finish;
89 95
90 #if defined(_WIN32) 96 #if defined(_WIN32)
822 bool Toolbox::IsExistingFile(const std::string& path) 828 bool Toolbox::IsExistingFile(const std::string& path)
823 { 829 {
824 return boost::filesystem::exists(path); 830 return boost::filesystem::exists(path);
825 } 831 }
826 832
833
834 #if ORTHANC_PUGIXML_ENABLED == 1
835 class ChunkedBufferWriter : public pugi::xml_writer
836 {
837 private:
838 ChunkedBuffer buffer_;
839
840 public:
841 virtual void write(const void *data, size_t size)
842 {
843 if (size > 0)
844 {
845 buffer_.AddChunk(reinterpret_cast<const char*>(data), size);
846 }
847 }
848
849 void Flatten(std::string& s)
850 {
851 buffer_.Flatten(s);
852 }
853 };
854
855
856 static void JsonToXmlInternal(pugi::xml_node& target,
857 const Json::Value& source,
858 const std::string& arrayElement)
859 {
860 // http://jsoncpp.sourceforge.net/value_8h_source.html#l00030
861
862 switch (source.type())
863 {
864 case Json::nullValue:
865 {
866 target.append_child(pugi::node_pcdata).set_value("null");
867 break;
868 }
869
870 case Json::intValue:
871 {
872 std::string s = boost::lexical_cast<std::string>(source.asInt());
873 target.append_child(pugi::node_pcdata).set_value(s.c_str());
874 break;
875 }
876
877 case Json::uintValue:
878 {
879 std::string s = boost::lexical_cast<std::string>(source.asUInt());
880 target.append_child(pugi::node_pcdata).set_value(s.c_str());
881 break;
882 }
883
884 case Json::realValue:
885 {
886 std::string s = boost::lexical_cast<std::string>(source.asFloat());
887 target.append_child(pugi::node_pcdata).set_value(s.c_str());
888 break;
889 }
890
891 case Json::stringValue:
892 {
893 target.append_child(pugi::node_pcdata).set_value(source.asString().c_str());
894 break;
895 }
896
897 case Json::booleanValue:
898 {
899 target.append_child(pugi::node_pcdata).set_value(source.asBool() ? "true" : "false");
900 break;
901 }
902
903 case Json::arrayValue:
904 {
905 for (Json::Value::ArrayIndex i = 0; i < source.size(); i++)
906 {
907 pugi::xml_node node = target.append_child();
908 node.set_name(arrayElement.c_str());
909 JsonToXmlInternal(node, source[i], arrayElement);
910 }
911 break;
912 }
913
914 case Json::objectValue:
915 {
916 Json::Value::Members members = source.getMemberNames();
917
918 for (size_t i = 0; i < members.size(); i++)
919 {
920 pugi::xml_node node = target.append_child();
921 node.set_name(members[i].c_str());
922 JsonToXmlInternal(node, source[members[i]], arrayElement);
923 }
924
925 break;
926 }
927
928 default:
929 throw OrthancException(ErrorCode_NotImplemented);
930 }
931 }
932
933
934 void Toolbox::JsonToXml(std::string& target,
935 const Json::Value& source,
936 const std::string& rootElement,
937 const std::string& arrayElement)
938 {
939 pugi::xml_document doc;
940
941 pugi::xml_node n = doc.append_child(rootElement.c_str());
942 JsonToXmlInternal(n, source, arrayElement);
943
944 pugi::xml_node decl = doc.prepend_child(pugi::node_declaration);
945 decl.append_attribute("version").set_value("1.0");
946 decl.append_attribute("encoding").set_value("utf-8");
947
948 ChunkedBufferWriter writer;
949 doc.save(writer, " ", pugi::format_default, pugi::encoding_utf8);
950 writer.Flatten(target);
951 }
952
953 #endif
827 } 954 }
828 955