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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "multi_term_hash_filter.h"
#include <vespa/searchlib/common/bitvector.h>
#include <vespa/searchlib/fef/termfieldmatchdata.h>
namespace search::attribute {
template <typename WrapperType>
MultiTermHashFilter<WrapperType>::MultiTermHashFilter(fef::TermFieldMatchData& tfmd,
WrapperType attr,
TokenMap&& map)
: _tfmd(tfmd),
_attr(attr),
_map(std::move(map)),
_weight(0)
{
}
template <typename WrapperType>
void
MultiTermHashFilter<WrapperType>::and_hits_into(BitVector& result, uint32_t begin_id)
{
auto end = _map.end();
result.foreach_truebit([&, end](uint32_t key) { if ( _map.find(_attr.getToken(key)) == end) { result.clearBit(key); }}, begin_id);
}
template <typename WrapperType>
void
MultiTermHashFilter<WrapperType>::doSeek(uint32_t docId)
{
auto pos = _map.find(_attr.getToken(docId));
if (pos != _map.end()) {
_weight = pos->second;
setDocId(docId);
}
}
template <typename WrapperType>
void
MultiTermHashFilter<WrapperType>::doUnpack(uint32_t docId)
{
if constexpr (unpack_weights) {
_tfmd.reset(docId);
fef::TermFieldMatchDataPosition pos;
pos.setElementWeight(_weight);
_tfmd.appendPosition(pos);
} else {
_tfmd.resetOnlyDocId(docId);
}
}
}
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