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ArcLists.cpp « moses2 « contrib - github.com/moses-smt/mosesdecoder.git - Unnamed repository; edit this file 'description' to name the repository.
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/*
 * ArcList.cpp
 *
 *  Created on: 26 Oct 2015
 *      Author: hieu
 */
#include <iostream>
#include <sstream>
#include <algorithm>
#include <boost/foreach.hpp>
#include "ArcLists.h"
#include "HypothesisBase.h"
#include "util/exception.hh"

using namespace std;

namespace Moses2
{

ArcLists::ArcLists()
{
	// TODO Auto-generated constructor stub

}

ArcLists::~ArcLists()
{
	BOOST_FOREACH(const Coll::value_type &collPair, m_coll){
		const ArcList *arcList = collPair.second;
		delete arcList;
	}
}

void ArcLists::AddArc(bool added, const HypothesisBase *currHypo,
		const HypothesisBase *otherHypo)
{
	//cerr << added << " " << currHypo << " " << otherHypo << endl;
	ArcList *arcList;
	if (added) {
		// we're winners!
		if (otherHypo) {
			// there was a existing losing hypo
			arcList = &GetAndDetachArcList(otherHypo);
		}
		else {
			// there was no existing hypo
			arcList = new ArcList;
		}
		m_coll[currHypo] = arcList;
	}
	else {
		// we're losers!
		// there should be a winner, we're not doing beam pruning
		UTIL_THROW_IF2(otherHypo == NULL, "There must have been a winning hypo");
		arcList = &GetArcList(otherHypo);
	}

	// in any case, add the curr hypo
	arcList->push_back(currHypo);
}

ArcList &ArcLists::GetArcList(const HypothesisBase *hypo)
{
	Coll::iterator iter = m_coll.find(hypo);
	UTIL_THROW_IF2(iter == m_coll.end(), "Can't find arc list");
	ArcList &arcList = *iter->second;
	return arcList;
}

const ArcList &ArcLists::GetArcList(const HypothesisBase *hypo) const
{
	Coll::const_iterator iter = m_coll.find(hypo);

	if (iter == m_coll.end()) {
		cerr << "looking for:" << hypo << " have " << m_coll.size() << " :";
		BOOST_FOREACH(const Coll::value_type &collPair, m_coll){
			const HypothesisBase *hypo = collPair.first;
			cerr << hypo << " ";
		}
	}

	UTIL_THROW_IF2(iter == m_coll.end(), "Can't find arc list for " << hypo);
	ArcList &arcList = *iter->second;
	return arcList;
}

ArcList &ArcLists::GetAndDetachArcList(const HypothesisBase *hypo)
{
	Coll::iterator iter = m_coll.find(hypo);
	UTIL_THROW_IF2(iter == m_coll.end(), "Can't find arc list");
	ArcList &arcList = *iter->second;

	m_coll.erase(iter);

	return arcList;
}

void ArcLists::Sort()
{
	BOOST_FOREACH(Coll::value_type &collPair, m_coll){
		ArcList &list = *collPair.second;
		std::sort(list.begin(), list.end(), HypothesisFutureScoreOrderer() );
	}
}

void ArcLists::Delete(const HypothesisBase *hypo)
{
	//cerr << "hypo=" << hypo->Debug() << endl;
	//cerr << "m_coll=" << m_coll.size() << endl;
	Coll::iterator iter = m_coll.find(hypo);
	UTIL_THROW_IF2(iter == m_coll.end(), "Can't find arc list");
	ArcList *arcList = iter->second;

	m_coll.erase(iter);
	delete arcList;
}

std::string ArcLists::Debug(const System &system) const
{
	stringstream strm;
	BOOST_FOREACH(const Coll::value_type &collPair, m_coll){
		const ArcList *arcList = collPair.second;
		strm << arcList << "(" << arcList->size() << ") ";
	}
	return strm.str();
}

}