This is a newbie question. I am trying to serialize some objects to XML, but the resulting XML contains a boost serialization signature, version information, class id, ...etc. that I do not need. Is there a way to get rid of them without post-processing the xml message?
#include <fstream>
#include <iostream>
#include <boost/archive/xml_iarchive.hpp>
#include <boost/archive/xml_oarchive.hpp>
using namespace std;
class Test {
private:
friend class boost::serialization::access;
template<class Archive> void serialize(Archive & ar,
const unsigned int version) {
ar & BOOST_SERIALIZATION_NVP(a);
ar & BOOST_SERIALIZATION_NVP(b);
ar & BOOST_SERIALIZATION_NVP(c);
}
int a;
int b;
float c;
public:
inline Test(int a, int b, float c) {
this->a = a;
this->b = b;
this->c = c;
}
};
int main() {
std::ofstream ofs("filename.xml");
Test* test = new Test(1, 2, 3.3);
boost::archive::xml_oarchive oa(ofs);
oa << BOOST_SERIALIZATION_NVP(test);
return 0;
}
results in:
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE boost_serialization (View Source for full doctype...)>
<boost_serialization signature="serialization::archive" version="6">
<test class_id="0" tracking_level="1" version="0" object_id="_0">
<a>1</a>
<b>2</b>
<c>3.3</c>
</test>
</boost_serialization>
I'll be serializing these messages to strings, though, and sending them to systems that expect a message to look like this.
<test>
<a>1</a>
<b>2</b>
<c>3.3</c>
</test>
Is there a way to serialize xml without the signature?
the flag no_header eliminates the heading lines
unsigned int flags = boost::archive::no_header;
boost::archive::xml_oarchive oa(ofs, flags);
the following macro eliminates the attributes
BOOST_CLASS_IMPLEMENTATION(Test, object_serializable)