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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "docsumcontext.h"
#include <vespa/document/datatype/positiondatatype.h>
#include <vespa/searchlib/queryeval/begin_and_end_id.h>
#include <vespa/searchlib/attribute/iattributemanager.h>
#include <vespa/searchlib/common/location.h>
#include <vespa/searchlib/common/matching_elements.h>
#include <vespa/vespalib/data/slime/slime.h>
#include <vespa/vespalib/util/stringfmt.h>
#include <vespa/log/log.h>
LOG_SETUP(".proton.docsummary.docsumcontext");
using document::PositionDataType;
using search::common::Location;
using vespalib::string;
using vespalib::slime::SymbolTable;
using vespalib::slime::NIX;
using vespalib::Memory;
using vespalib::slime::Cursor;
using vespalib::slime::Symbol;
using vespalib::slime::Inserter;
using vespalib::slime::ObjectSymbolInserter;
using vespalib::Slime;
using vespalib::make_string;
using namespace search;
using namespace search::attribute;
using namespace search::engine;
using namespace search::docsummary;
namespace proton {
using namespace matching;
namespace {
Memory DOCSUMS("docsums");
Memory DOCSUM("docsum");
Memory ERRORS("errors");
Memory TYPE("type");
Memory MESSAGE("message");
Memory DETAILS("details");
Memory TIMEOUT("timeout");
}
void
DocsumContext::initState()
{
const DocsumRequest & req = _request;
_docsumState._args.initFromDocsumRequest(req);
_docsumState._docsumcnt = req.hits.size();
_docsumState._docsumbuf = (_docsumState._docsumcnt > 0)
? (uint32_t*)malloc(sizeof(uint32_t) * _docsumState._docsumcnt)
: nullptr;
for (uint32_t i = 0; i < _docsumState._docsumcnt; i++) {
_docsumState._docsumbuf[i] = req.hits[i].docid;
}
}
DocsumReply::UP
DocsumContext::createReply()
{
DocsumReply::UP reply(new DocsumReply());
search::RawBuf buf(4096);
_docsumWriter.InitState(_attrMgr, &_docsumState);
reply->docsums.resize(_docsumState._docsumcnt);
SymbolTable::UP symbols = std::make_unique<SymbolTable>();
IDocsumWriter::ResolveClassInfo rci = _docsumWriter.resolveClassInfo(_docsumState._args.getResultClassName(), _docsumStore.getSummaryClassId());
for (uint32_t i = 0; i < _docsumState._docsumcnt; ++i) {
buf.reset();
uint32_t docId = _docsumState._docsumbuf[i];
reply->docsums[i].docid = docId;
if (docId != search::endDocId && !rci.mustSkip) {
Slime slime(Slime::Params(std::move(symbols)));
vespalib::slime::SlimeInserter inserter(slime);
if (_request.expired()) {
inserter.insertString(make_string("Timed out with %" PRId64 "us left.", _request.getTimeLeft().us()));
} else {
_docsumWriter.insertDocsum(rci, docId, &_docsumState, &_docsumStore, slime, inserter);
}
uint32_t docsumLen = (slime.get().type().getId() != NIX::ID)
? IDocsumWriter::slime2RawBuf(slime, buf)
: 0;
reply->docsums[i].setData(buf.GetDrainPos(), docsumLen);
symbols = Slime::reclaimSymbols(std::move(slime));
}
}
return reply;
}
namespace {
vespalib::Slime::Params
makeSlimeParams(size_t chunkSize) {
Slime::Params params;
params.setChunkSize(chunkSize);
return params;
}
}
vespalib::Slime::UP
DocsumContext::createSlimeReply()
{
_docsumWriter.InitState(_attrMgr, &_docsumState);
const size_t estimatedChunkSize(std::min(0x200000ul, _docsumState._docsumcnt*0x400ul));
vespalib::Slime::UP response(std::make_unique<vespalib::Slime>(makeSlimeParams(estimatedChunkSize)));
Cursor & root = response->setObject();
Cursor & array = root.setArray(DOCSUMS);
const Symbol docsumSym = response->insert(DOCSUM);
IDocsumWriter::ResolveClassInfo rci = _docsumWriter.resolveClassInfo(_docsumState._args.getResultClassName(),
_docsumStore.getSummaryClassId());
uint32_t i(0);
for (i = 0; (i < _docsumState._docsumcnt) && !_request.expired(); ++i) {
uint32_t docId = _docsumState._docsumbuf[i];
Cursor & docSumC = array.addObject();
ObjectSymbolInserter inserter(docSumC, docsumSym);
if ((docId != search::endDocId) && !rci.mustSkip) {
_docsumWriter.insertDocsum(rci, docId, &_docsumState, &_docsumStore, *response, inserter);
}
}
if (i != _docsumState._docsumcnt) {
const uint32_t numTimedOut = _docsumState._docsumcnt - i;
Cursor & errors = root.setArray(ERRORS);
Cursor & timeout = errors.addObject();
timeout.setString(TYPE, TIMEOUT);
timeout.setString(MESSAGE, make_string("Timed out %d summaries with %" PRId64 "us left.",
numTimedOut, _request.getTimeLeft().us()));
}
return response;
}
DocsumContext::DocsumContext(const DocsumRequest & request, IDocsumWriter & docsumWriter,
IDocsumStore & docsumStore, const Matcher::SP & matcher,
ISearchContext & searchCtx, IAttributeContext & attrCtx,
IAttributeManager & attrMgr, SessionManager & sessionMgr) :
_request(request),
_docsumWriter(docsumWriter),
_docsumStore(docsumStore),
_matcher(matcher),
_searchCtx(searchCtx),
_attrCtx(attrCtx),
_attrMgr(attrMgr),
_docsumState(*this),
_sessionMgr(sessionMgr)
{
initState();
}
DocsumReply::UP
DocsumContext::getDocsums()
{
if (_request.useRootSlime()) {
return std::make_unique<DocsumReply>(createSlimeReply());
}
return createReply();
}
void
DocsumContext::FillSummaryFeatures(search::docsummary::GetDocsumsState * state, search::docsummary::IDocsumEnvironment *)
{
assert(&_docsumState == state);
if (_matcher->canProduceSummaryFeatures()) {
state->_summaryFeatures = _matcher->getSummaryFeatures(_request, _searchCtx, _attrCtx, _sessionMgr);
}
state->_summaryFeaturesCached = false;
}
void
DocsumContext::FillRankFeatures(search::docsummary::GetDocsumsState * state, search::docsummary::IDocsumEnvironment *)
{
assert(&_docsumState == state);
// check if we are allowed to run
if ( ! state->_args.dumpFeatures()) {
return;
}
state->_rankFeatures = _matcher->getRankFeatures(_request, _searchCtx, _attrCtx, _sessionMgr);
}
namespace {
Location *getLocation(const string &loc_str, search::IAttributeManager &attrMgr)
{
LOG(debug, "Filling document locations from location string: %s", loc_str.c_str());
Location *loc = new Location;
string location;
string::size_type pos = loc_str.find(':');
if (pos != string::npos) {
string view = loc_str.substr(0, pos);
AttributeGuard::UP vec = attrMgr.getAttribute(view);
if (!vec->valid()) {
view = PositionDataType::getZCurveFieldName(view);
vec = attrMgr.getAttribute(view);
}
loc->setVecGuard(std::move(vec));
location = loc_str.substr(pos + 1);
} else {
LOG(warning, "Location string lacks attribute vector specification. loc='%s'", loc_str.c_str());
location = loc_str;
}
loc->parse(location);
return loc;
}
} // namespace
void
DocsumContext::ParseLocation(search::docsummary::GetDocsumsState *state)
{
state->_parsedLocation.reset(getLocation(_request.location, _attrMgr));
}
std::unique_ptr<MatchingElements>
DocsumContext::fill_matching_elements(const StructFieldMapper &)
{
return std::make_unique<MatchingElements>();
}
} // namespace proton
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