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// vim:tabstop=2
#include "PhraseDictionaryMemoryPerSentenceOnDemand.h"
#include "moses/TranslationModel/CYKPlusParser/ChartRuleLookupManagerSkeleton.h"
#include <sstream>
using namespace std;
namespace Moses
{
PhraseDictionaryMemoryPerSentenceOnDemand::PhraseDictionaryMemoryPerSentenceOnDemand(const std::string &line)
: PhraseDictionary(line, true), m_valuesAreProbabilities(true)
{
ReadParameters();
}
void PhraseDictionaryMemoryPerSentenceOnDemand::Load(AllOptions::ptr const& opts)
{
m_options = opts;
SetFeaturesToApply();
// don't load anything. Load when we have the input
}
TargetPhraseCollection::shared_ptr PhraseDictionaryMemoryPerSentenceOnDemand::GetTargetPhraseCollectionNonCacheLEGACY(const Phrase &source) const
{
Coll &coll = GetColl();
return coll[source];
}
void PhraseDictionaryMemoryPerSentenceOnDemand::InitializeForInput(ttasksptr const& ttask)
{
Coll &coll = GetColl();
coll.clear();
VERBOSE(2, "Initializing PhraseDictionaryMemoryPerSentenceOnDemand " << m_description << "\n");
// The context scope object for this translation task
// contains a map of translation task-specific data
boost::shared_ptr<Moses::ContextScope> contextScope = ttask->GetScope();
// The key to the map is this object
void const* key = static_cast<void const*>(this);
// The value stored in the map is a string representing a phrase table
boost::shared_ptr<string> value = contextScope->get<string>(key);
// Create a stream to read the phrase table data
stringstream strme(*(value.get()));
// Read the phrase table data, one line at a time
string line;
while (getline(strme, line)) {
VERBOSE(3, "\t" << line);
vector<string> toks = TokenizeMultiCharSeparator(line, "|||");
Phrase source;
source.CreateFromString(Input, m_input, toks[0], NULL);
TargetPhrase *target = new TargetPhrase(this);
target->CreateFromString(Output, m_output, toks[1], NULL);
// score for this phrase table
vector<float> scores = Tokenize<float>(toks[2]);
if (m_valuesAreProbabilities) {
std::transform(scores.begin(), scores.end(), scores.begin(),TransformScore);
std::transform(scores.begin(), scores.end(), scores.begin(),FloorScore);
}
target->GetScoreBreakdown().PlusEquals(this, scores);
// score of all other ff when this rule is being loaded
target->EvaluateInIsolation(source, GetFeaturesToApply());
// add to coll
TargetPhraseCollection::shared_ptr &tpsPtr = coll[source];
TargetPhraseCollection *tps = tpsPtr.get();
if (tps == NULL) {
tps = new TargetPhraseCollection();
tpsPtr.reset(tps);
}
tps->Add(target);
}
}
void PhraseDictionaryMemoryPerSentenceOnDemand::GetTargetPhraseCollectionBatch(const InputPathList &inputPathQueue) const
{
InputPathList::const_iterator iter;
for (iter = inputPathQueue.begin(); iter != inputPathQueue.end(); ++iter) {
InputPath &inputPath = **iter;
const Phrase &source = inputPath.GetPhrase();
Coll &coll = GetColl();
Coll::const_iterator iter = coll.find(source);
if (iter == coll.end()) {
TargetPhraseCollection::shared_ptr tprPtr;
inputPath.SetTargetPhrases(*this, tprPtr, NULL);
} else {
const TargetPhraseCollection::shared_ptr &tprPtr = iter->second;
inputPath.SetTargetPhrases(*this, tprPtr, NULL);
}
}
}
ChartRuleLookupManager* PhraseDictionaryMemoryPerSentenceOnDemand::CreateRuleLookupManager(const ChartParser &parser,
const ChartCellCollectionBase &cellCollection,
std::size_t /*maxChartSpan*/)
{
abort();
}
PhraseDictionaryMemoryPerSentenceOnDemand::Coll &PhraseDictionaryMemoryPerSentenceOnDemand::GetColl() const
{
Coll *coll;
coll = m_coll.get();
if (coll == NULL) {
coll = new Coll;
m_coll.reset(coll);
}
assert(coll);
return *coll;
}
void
PhraseDictionaryMemoryPerSentenceOnDemand::SetParameter(const std::string& key, const std::string& value)
{
if (key == "path") {
UTIL_THROW(util::Exception, "PhraseDictionaryMemoryPerSentenceOnDemand does not support key \"path\".");
} else if (key == "valuesAreProbabilities") {
m_valuesAreProbabilities = Scan<bool>(value);
} else {
PhraseDictionary::SetParameter(key, value);
}
}
TO_STRING_BODY(PhraseDictionaryMemoryPerSentenceOnDemand);
// friend
ostream& operator<<(ostream& out, const PhraseDictionaryMemoryPerSentenceOnDemand& phraseDict)
{
return out;
}
}
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