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#include "ff_factory.h"
#include "ff.h"
#include "stringlib.h"
using boost::shared_ptr;
using namespace std;
FFFactoryBase::~FFFactoryBase() {}
void FFRegistry::DisplayList() const {
for (map<string, shared_ptr<FFFactoryBase> >::const_iterator it = reg_.begin();
it != reg_.end(); ++it) {
cerr << " " << it->first << endl;
}
}
string FFRegistry::usage(string const& ffname,bool params,bool verbose) const {
map<string, shared_ptr<FFFactoryBase> >::const_iterator it = reg_.find(ffname);
return it == reg_.end()
? "Unknown feature " + ffname
: it->second->usage(params,verbose);
}
namespace {
std::string const& debug_pre="debug";
}
shared_ptr<FeatureFunction> FFRegistry::Create(const string& ffname, const string& param) const {
map<string, shared_ptr<FFFactoryBase> >::const_iterator it = reg_.find(ffname);
shared_ptr<FeatureFunction> res;
if (it == reg_.end()) {
cerr << "I don't know how to create feature " << ffname << endl;
} else {
int pl=debug_pre.size();
bool space=false;
std::string p=param;
bool debug=match_begin(p,debug_pre)&&
(p.size()==pl || (space=(p[pl]==' ')));
if (debug) {
p.erase(0,debug_pre.size()+space);
cerr<<"debug enabled for "<<ffname<< " - remaining options: '"<<p<<"'\n";
}
res = it->second->Create(p);
res->name=ffname;
res->debug=debug;
}
return res;
}
void FFRegistry::Register(const string& ffname, FFFactoryBase* factory) {
if (reg_.find(ffname) != reg_.end()) {
cerr << "Duplicate registration of FeatureFunction with name " << ffname << "!\n";
abort();
}
reg_[ffname].reset(factory);
}
void FFRegistry::Register(FFFactoryBase* factory)
{
Register(factory->usage(false,false),factory);
}
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