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// $Id$
/***********************************************************************
Moses - factored phrase-based language decoder
Copyright (C) 2006 University of Edinburgh
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
***********************************************************************/
#include <boost/version.hpp>
#include <ostream>
#include <string>
#include "FactorCollection.h"
#include "Util.h"
using namespace std;
namespace Moses
{
FactorCollection FactorCollection::s_instance;
const Factor *FactorCollection::AddFactor(const StringPiece &factorString)
{
// Sorry this is so complicated. Can't we just require everybody to use Boost >= 1.42? The issue is that I can't check BOOST_VERSION unless we have Boost.
#ifdef WITH_THREADS
#if BOOST_VERSION < 104200
FactorFriend to_ins;
to_ins.in.m_string.assign(factorString.data(), factorString.size());
#endif // BOOST_VERSION
{
boost::shared_lock<boost::shared_mutex> read_lock(m_accessLock);
#if BOOST_VERSION >= 104200
// If this line doesn't compile, upgrade your Boost.
Set::const_iterator i = m_set.find(factorString, HashFactor(), EqualsFactor());
#else // BOOST_VERSION
Set::const_iterator i = m_set.find(to_ins);
#endif // BOOST_VERSION
if (i != m_set.end()) return &i->in;
}
boost::unique_lock<boost::shared_mutex> lock(m_accessLock);
#if BOOST_VERSION >= 104200
FactorFriend to_ins;
to_ins.in.m_string.assign(factorString.data(), factorString.size());
#endif // BOOST_VERSION
#else // WITH_THREADS
FactorFriend to_ins;
to_ins.in.m_string.assign(factorString.data(), factorString.size());
#endif // WITH_THREADS
to_ins.in.m_id = m_factorId;
std::pair<Set::iterator, bool> ret(m_set.insert(to_ins));
if (ret.second) {
m_factorId++;
}
return &ret.first->in;
}
FactorCollection::~FactorCollection() {}
TO_STRING_BODY(FactorCollection);
// friend
ostream& operator<<(ostream& out, const FactorCollection& factorCollection)
{
#ifdef WITH_THREADS
boost::shared_lock<boost::shared_mutex> lock(factorCollection.m_accessLock);
#endif
for (FactorCollection::Set::const_iterator i = factorCollection.m_set.begin(); i != factorCollection.m_set.end(); ++i) {
out << i->in;
}
return out;
}
}
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