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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "matchdatabuilder.h"
#include <vespa/searchlib/attribute/attributevector.h>
#include <vespa/searchlib/attribute/stringbase.h>
#include <vespa/vespalib/util/stringfmt.h>
#include <vespa/log/log.h>
LOG_SETUP(".fef.matchdatabuilder");
namespace search::fef::test {
MatchDataBuilder::MatchDataBuilder(QueryEnvironment &queryEnv, MatchData &data) :
_queryEnv(queryEnv),
_data(data),
_index(),
_match()
{
// reset all match data objects.
for (TermFieldHandle handle = 0; handle < _data.getNumTermFields(); ++handle) {
_data.resolveTermField(handle)->reset(TermFieldMatchData::invalidId());
}
}
MatchDataBuilder::~MatchDataBuilder() {}
TermFieldMatchData *
MatchDataBuilder::getTermFieldMatchData(uint32_t termId, uint32_t fieldId)
{
const ITermData *term = _queryEnv.getTerm(termId);
if (term == nullptr) {
return nullptr;
}
const ITermFieldData *field = term->lookupField(fieldId);
if (field == nullptr || field->getHandle() >= _data.getNumTermFields()) {
return nullptr;
}
return _data.resolveTermField(field->getHandle());
}
bool
MatchDataBuilder::setFieldLength(const vespalib::string &fieldName, uint32_t length)
{
const FieldInfo *info = _queryEnv.getIndexEnv()->getFieldByName(fieldName);
if (info == nullptr) {
LOG(error, "Field '%s' does not exist.", fieldName.c_str());
return false;
}
_index[info->id()].fieldLength = length;
return true;
}
bool
MatchDataBuilder::addElement(const vespalib::string &fieldName, int32_t weight, uint32_t length)
{
const FieldInfo *info = _queryEnv.getIndexEnv()->getFieldByName(fieldName);
if (info == nullptr) {
LOG(error, "Field '%s' does not exist.", fieldName.c_str());
return false;
}
_index[info->id()].elements.push_back(MyElement(weight, length));
return true;
}
bool
MatchDataBuilder::addOccurence(const vespalib::string &fieldName, uint32_t termId, uint32_t pos, uint32_t element)
{
const FieldInfo *info = _queryEnv.getIndexEnv()->getFieldByName(fieldName);
if (info == nullptr) {
LOG(error, "Field '%s' does not exist.", fieldName.c_str());
return false;
}
if (termId >= _queryEnv.getNumTerms()) {
LOG(error, "Term id '%u' is invalid.", termId);
return false;
}
const ITermFieldData *tfd = _queryEnv.getTerm(termId)->lookupField(info->id());
if (tfd == nullptr) {
LOG(error, "Field '%s' is not searched by the given term.",
fieldName.c_str());
return false;
}
_match[termId][info->id()].insert(Position(pos, element));
return true;
}
bool
MatchDataBuilder::setWeight(const vespalib::string &fieldName, uint32_t termId, int32_t weight)
{
const FieldInfo *info = _queryEnv.getIndexEnv()->getFieldByName(fieldName);
if (info == nullptr) {
LOG(error, "Field '%s' does not exist.", fieldName.c_str());
return false;
}
if (termId >= _queryEnv.getNumTerms()) {
LOG(error, "Term id '%u' is invalid.", termId);
return false;
}
const ITermFieldData *tfd = _queryEnv.getTerm(termId)->lookupField(info->id());
if (tfd == nullptr) {
LOG(error, "Field '%s' is not searched by the given term.",
fieldName.c_str());
return false;
}
uint32_t eid = _index[info->id()].elements.size();
_match[termId][info->id()].clear();
_match[termId][info->id()].insert(Position(0, eid));
_index[info->id()].elements.push_back(MyElement(weight, 1));
return true;
}
bool
MatchDataBuilder::apply(uint32_t docId)
{
// For each term, do
for (const auto& term_elem : _match) {
uint32_t termId = term_elem.first;
for (const auto& field_elem : term_elem.second) {
uint32_t fieldId = field_elem.first;
TermFieldMatchData *match = getTermFieldMatchData(termId, fieldId);
// Make sure there is a corresponding term field match data object.
if (match == nullptr) {
LOG(error, "Term id '%u' is invalid.", termId);
return false;
}
match->reset(docId);
// find field data
MyField field;
auto idxItr = _index.find(fieldId);
if (idxItr != _index.end()) {
field = idxItr->second;
}
// For log, attempt to lookup field name.
const FieldInfo *info = _queryEnv.getIndexEnv()->getField(fieldId);
vespalib::string name = info != nullptr ? info->name() : vespalib::make_string("%d", fieldId).c_str();
// For each occurence of that term, in that field, do
for (const auto& occ : field_elem.second) {
// Append a term match position to the term match data.
match->appendPosition(TermFieldMatchDataPosition(
occ.eid,
occ.pos,
field.getWeight(occ.eid),
field.getLength(occ.eid)));
LOG(debug,
"Added occurence of term '%u' in field '%s'"
" at position '%u'.",
termId, name.c_str(), occ.pos);
if (occ.pos >= field.getLength(occ.eid)) {
LOG(warning,
"Added occurence of term '%u' in field '%s'"
" at position '%u' >= fieldLen '%u'.",
termId, name.c_str(), occ.pos, field.getLength(occ.eid));
}
}
}
}
// Return ok.
return true;
}
}
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