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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "phrasesplitter.h"
#include "phrase_splitter_query_env.h"
namespace search::fef {
PhraseSplitter::PhraseSplitter(const PhraseSplitterQueryEnv& phrase_splitter_query_env)
: _phrase_splitter_query_env(phrase_splitter_query_env),
_skipHandles(_phrase_splitter_query_env.get_skip_handles()),
_matchData(nullptr),
_termMatches(_phrase_splitter_query_env.get_num_phrase_split_terms())
{
uint32_t field_id = _phrase_splitter_query_env.get_field_id();
for (auto & term_match : _termMatches) {
term_match.setFieldId(field_id);
}
auto &phrase_terms = _phrase_splitter_query_env.get_phrase_terms();
for (const auto &phrase_term : phrase_terms) {
// Record that we need normal term field match data
(void) phrase_term.term.lookupField(field_id)->getHandle(MatchDataDetails::Normal);
}
}
PhraseSplitter::~PhraseSplitter() = default;
void
PhraseSplitter::copyTermFieldMatchData(TermFieldMatchData & dst, const TermFieldMatchData & src, uint32_t hitOffset)
{
dst.reset(src.getDocId());
for (TermFieldMatchData::PositionsIterator itr = src.begin(), end = src.end(); itr != end; ++itr) {
TermFieldMatchDataPosition pos(*itr);
pos.setPosition(pos.getPosition() + hitOffset);
dst.appendPosition(TermFieldMatchDataPosition(pos));
}
}
void
PhraseSplitter::update()
{
for (const auto ©_info : _phrase_splitter_query_env.get_copy_info()) {
const TermFieldMatchData *src = _matchData->resolveTermField(copy_info.orig_handle);
TermFieldMatchData *dst = resolveSplittedTermField(copy_info.split_handle);
copyTermFieldMatchData(*dst, *src, copy_info.offsetInPhrase);
}
}
}
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