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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "distance_calculator_bundle.h"
#include "utils.h"
#include <vespa/searchlib/fef/iqueryenvironment.h>
#include <vespa/searchlib/fef/query_value.h>
#include <vespa/searchlib/tensor/distance_calculator.h>
#include <vespa/vespalib/util/exceptions.h>
#include <vespa/vespalib/util/issue.h>
using search::fef::ITermData;
using search::fef::IllegalHandle;
using search::fef::InvalidValueTypeException;
using search::fef::QueryValue;
using search::fef::TermFieldHandle;
using search::tensor::DistanceCalculator;
using vespalib::Issue;
namespace search::features {
namespace {
void
prepare_query_tensor(const fef::IQueryEnvironment& env,
fef::IObjectStore& store,
const vespalib::string& query_tensor_name,
const vespalib::string& feature_name)
{
try {
auto qvalue = QueryValue::from_config(query_tensor_name, env.getIndexEnvironment());
qvalue.prepare_shared_state(env, store);
} catch (const InvalidValueTypeException& ex) {
Issue::report("%s feature: Query tensor '%s' has invalid type '%s'.",
feature_name.c_str(), query_tensor_name.c_str(), ex.type_str().c_str());
}
}
std::unique_ptr<DistanceCalculator>
make_distance_calculator(const fef::IQueryEnvironment& env,
const search::attribute::IAttributeVector& attr,
const vespalib::string& query_tensor_name,
const vespalib::string& feature_name)
{
try {
auto qvalue = QueryValue::from_config(query_tensor_name, env.getIndexEnvironment());
const auto* query_tensor = qvalue.lookup_value(env.getObjectStore());
if (query_tensor == nullptr) {
Issue::report("%s feature: Query tensor '%s' is not found in the object store.",
feature_name.c_str(), query_tensor_name.c_str());
return {};
}
return DistanceCalculator::make_with_validation(attr, *query_tensor);
} catch (const InvalidValueTypeException& ex) {
Issue::report("%s feature: Query tensor '%s' has invalid type '%s'.",
feature_name.c_str(), query_tensor_name.c_str(), ex.type_str().c_str());
} catch (const vespalib::IllegalArgumentException& ex) {
Issue::report("%s feature: Could not create distance calculator for attribute '%s' and query tensor '%s': %s.",
feature_name.c_str(), attr.getName().c_str(), query_tensor_name.c_str(), ex.getMessage().c_str());
}
return {};
}
const search::attribute::IAttributeVector*
resolve_attribute_for_field(const fef::IQueryEnvironment& env,
uint32_t field_id,
const vespalib::string& feature_name)
{
const auto* field = env.getIndexEnvironment().getField(field_id);
if (field != nullptr) {
const auto* attr = env.getAttributeContext().getAttribute(field->name());
if (attr == nullptr) {
Issue::report("%s feature: The attribute vector '%s' for field id '%u' doesn't exist.",
feature_name.c_str(), field->name().c_str(), field_id);
}
return attr;
}
return nullptr;
}
}
DistanceCalculatorBundle::Element::Element(fef::TermFieldHandle handle_in) noexcept
: handle(handle_in),
calc()
{
}
DistanceCalculatorBundle::Element::Element(fef::TermFieldHandle handle_in, std::unique_ptr<search::tensor::DistanceCalculator> calc_in) noexcept
: handle(handle_in),
calc(std::move(calc_in))
{
}
DistanceCalculatorBundle::Element::~Element() = default;
DistanceCalculatorBundle::DistanceCalculatorBundle(const fef::IQueryEnvironment& env,
uint32_t field_id,
const vespalib::string& feature_name)
: _elems(),
_min_rawscore(0.0)
{
_elems.reserve(env.getNumTerms());
const auto* attr = resolve_attribute_for_field(env, field_id, feature_name);
for (uint32_t i = 0; i < env.getNumTerms(); ++i) {
search::fef::TermFieldHandle handle = util::getTermFieldHandle(env, i, field_id);
if (handle != search::fef::IllegalHandle) {
const auto* term = env.getTerm(i);
if (term->query_tensor_name().has_value() && (attr != nullptr)) {
_elems.emplace_back(handle, make_distance_calculator(env, *attr, term->query_tensor_name().value(), feature_name));
if (_elems.back().calc) {
_min_rawscore = _elems.back().calc->function().min_rawscore();
}
} else {
_elems.emplace_back(handle);
}
}
}
}
DistanceCalculatorBundle::DistanceCalculatorBundle(const fef::IQueryEnvironment& env,
std::optional<uint32_t> field_id,
const vespalib::string& label,
const vespalib::string& feature_name)
: _elems(),
_min_rawscore(0.0)
{
const ITermData* term = util::getTermByLabel(env, label);
if (term != nullptr) {
// expect numFields() == 1
for (uint32_t i = 0; i < term->numFields(); ++i) {
const auto& term_field = term->field(i);
if (field_id.has_value() && field_id.value() != term_field.getFieldId()) {
continue;
}
TermFieldHandle handle = term_field.getHandle();
if (handle != IllegalHandle) {
std::unique_ptr<DistanceCalculator> calc;
if (term->query_tensor_name().has_value()) {
const auto* attr = resolve_attribute_for_field(env, term_field.getFieldId(), feature_name);
if (attr != nullptr) {
calc = make_distance_calculator(env, *attr, term->query_tensor_name().value(), feature_name);
if (calc) {
_min_rawscore = calc->function().min_rawscore();
}
}
}
_elems.emplace_back(handle, std::move(calc));
}
}
}
}
void
DistanceCalculatorBundle::prepare_shared_state(const fef::IQueryEnvironment& env,
fef::IObjectStore& store,
uint32_t field_id,
const vespalib::string& feature_name)
{
for (uint32_t i = 0; i < env.getNumTerms(); ++i) {
search::fef::TermFieldHandle handle = util::getTermFieldHandle(env, i, field_id);
if (handle != search::fef::IllegalHandle) {
const auto* term = env.getTerm(i);
if (term->query_tensor_name().has_value()) {
prepare_query_tensor(env, store, term->query_tensor_name().value(), feature_name);
}
}
}
}
void
DistanceCalculatorBundle::prepare_shared_state(const fef::IQueryEnvironment& env,
fef::IObjectStore& store,
const vespalib::string& label,
const vespalib::string& feature_name)
{
const auto* term = util::getTermByLabel(env, label);
if ((term != nullptr) && term->query_tensor_name().has_value()) {
prepare_query_tensor(env, store, term->query_tensor_name().value(), feature_name);
}
}
}
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