mosesdecoder/moses/PP/Factory.cpp
Matthias Huck d921d23f7d comment
2014-05-19 22:09:27 +01:00

92 lines
2.3 KiB
C++

#include "moses/PP/Factory.h"
#include "util/exception.hh"
#include <iostream>
#include <vector>
#include "moses/PP/TreeStructurePhraseProperty.h"
namespace Moses
{
class PhrasePropertyCreator
{
public:
virtual ~PhrasePropertyCreator() {}
virtual boost::shared_ptr<PhraseProperty> CreateProperty(const std::string &value) = 0;
protected:
template <class P> boost::shared_ptr<P> Create(P *property);
PhrasePropertyCreator() {}
};
template <class P> boost::shared_ptr<P> PhrasePropertyCreator::Create(P *property)
{
return boost::shared_ptr<P>(property);
}
namespace
{
template <class P> class DefaultPhrasePropertyCreator : public PhrasePropertyCreator
{
public:
boost::shared_ptr<PhraseProperty> CreateProperty(const std::string &value) {
P* property = new P(value);
property->ProcessValue();
return Create(property);
}
};
} // namespace
PhrasePropertyFactory::PhrasePropertyFactory()
{
// Property with same key as class
#define MOSES_PNAME(name) Add(#name, new DefaultPhrasePropertyCreator< name >());
// Properties with different key than class.
#define MOSES_PNAME2(name, type) Add(name, new DefaultPhrasePropertyCreator< type >());
MOSES_PNAME2("Tree",TreeStructurePhraseProperty);
}
PhrasePropertyFactory::~PhrasePropertyFactory()
{
}
void PhrasePropertyFactory::Add(const std::string &name, PhrasePropertyCreator *creator)
{
std::pair<std::string, boost::shared_ptr<PhrasePropertyCreator> > to_ins(name, boost::shared_ptr<PhrasePropertyCreator>(creator));
UTIL_THROW_IF2(!m_registry.insert(to_ins).second, "Phrase property registered twice: " << name);
}
namespace
{
class UnknownPhrasePropertyException : public util::Exception {};
}
boost::shared_ptr<PhraseProperty> PhrasePropertyFactory::ProduceProperty(const std::string &key, const std::string &value) const
{
Registry::const_iterator i = m_registry.find(key);
UTIL_THROW_IF(i == m_registry.end(), UnknownPhrasePropertyException, "Phrase property is not registered: " << key);
return i->second->CreateProperty(value);
}
void PhrasePropertyFactory::PrintPP() const
{
std::cerr << "Registered phrase properties:" << std::endl;
Registry::const_iterator iter;
for (iter = m_registry.begin(); iter != m_registry.end(); ++iter) {
const std::string &ppName = iter->first;
std::cerr << ppName << " ";
}
std::cerr << std::endl;
}
} // namespace Moses