Mercurial > hg > orthanc
diff Core/Toolbox.cpp @ 1045:0bfeeb6d340f
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 |
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--- a/Core/Toolbox.cpp Thu Jul 17 16:01:41 2014 +0200 +++ b/Core/Toolbox.cpp Fri Jul 18 16:41:10 2014 +0200 @@ -83,6 +83,12 @@ #endif +#if ORTHANC_PUGIXML_ENABLED == 1 +#include "ChunkedBuffer.h" +#include <pugixml.hpp> +#endif + + namespace Orthanc { static bool finish; @@ -824,5 +830,126 @@ return boost::filesystem::exists(path); } + +#if ORTHANC_PUGIXML_ENABLED == 1 + class ChunkedBufferWriter : public pugi::xml_writer + { + private: + ChunkedBuffer buffer_; + + public: + virtual void write(const void *data, size_t size) + { + if (size > 0) + { + buffer_.AddChunk(reinterpret_cast<const char*>(data), size); + } + } + + void Flatten(std::string& s) + { + buffer_.Flatten(s); + } + }; + + + static void JsonToXmlInternal(pugi::xml_node& target, + const Json::Value& source, + const std::string& arrayElement) + { + // http://jsoncpp.sourceforge.net/value_8h_source.html#l00030 + + switch (source.type()) + { + case Json::nullValue: + { + target.append_child(pugi::node_pcdata).set_value("null"); + break; + } + + case Json::intValue: + { + std::string s = boost::lexical_cast<std::string>(source.asInt()); + target.append_child(pugi::node_pcdata).set_value(s.c_str()); + break; + } + + case Json::uintValue: + { + std::string s = boost::lexical_cast<std::string>(source.asUInt()); + target.append_child(pugi::node_pcdata).set_value(s.c_str()); + break; + } + + case Json::realValue: + { + std::string s = boost::lexical_cast<std::string>(source.asFloat()); + target.append_child(pugi::node_pcdata).set_value(s.c_str()); + break; + } + + case Json::stringValue: + { + target.append_child(pugi::node_pcdata).set_value(source.asString().c_str()); + break; + } + + case Json::booleanValue: + { + target.append_child(pugi::node_pcdata).set_value(source.asBool() ? "true" : "false"); + break; + } + + case Json::arrayValue: + { + for (Json::Value::ArrayIndex i = 0; i < source.size(); i++) + { + pugi::xml_node node = target.append_child(); + node.set_name(arrayElement.c_str()); + JsonToXmlInternal(node, source[i], arrayElement); + } + break; + } + + case Json::objectValue: + { + Json::Value::Members members = source.getMemberNames(); + + for (size_t i = 0; i < members.size(); i++) + { + pugi::xml_node node = target.append_child(); + node.set_name(members[i].c_str()); + JsonToXmlInternal(node, source[members[i]], arrayElement); + } + + break; + } + + default: + throw OrthancException(ErrorCode_NotImplemented); + } + } + + + void Toolbox::JsonToXml(std::string& target, + const Json::Value& source, + const std::string& rootElement, + const std::string& arrayElement) + { + pugi::xml_document doc; + + pugi::xml_node n = doc.append_child(rootElement.c_str()); + JsonToXmlInternal(n, source, arrayElement); + + pugi::xml_node decl = doc.prepend_child(pugi::node_declaration); + decl.append_attribute("version").set_value("1.0"); + decl.append_attribute("encoding").set_value("utf-8"); + + ChunkedBufferWriter writer; + doc.save(writer, " ", pugi::format_default, pugi::encoding_utf8); + writer.Flatten(target); + } + +#endif }