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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "strchrfieldsearcher.h"
#include <vespa/document/fieldvalue/stringfieldvalue.h>
using search::streaming::QueryTerm;
using search::streaming::QueryTermList;
namespace vsm {
void StrChrFieldSearcher::prepare(search::streaming::QueryTermList& qtl,
const SharedSearcherBuf& buf,
const vsm::FieldPathMapT& field_paths,
search::fef::IQueryEnvironment& query_env)
{
FieldSearcher::prepare(qtl, buf, field_paths, query_env);
}
void StrChrFieldSearcher::onValue(const document::FieldValue & fv)
{
const document::LiteralFieldValueB & sfv = static_cast<const document::LiteralFieldValueB &>(fv);
vespalib::stringref val = sfv.getValueRef();
FieldRef fr(val.data(), std::min(maxFieldLength(), val.size()));
matchDoc(fr);
}
bool StrChrFieldSearcher::matchDoc(const FieldRef & fieldRef)
{
bool retval(true);
if (_qtl.size() > 1) {
size_t mintsz = shortestTerm();
if (fieldRef.size() >= mintsz) {
_words += matchTerms(fieldRef, mintsz);
} else {
_words += countWords(fieldRef);
}
} else {
for (auto qt : _qtl) {
if (fieldRef.size() >= qt->termLen()) {
_words += matchTerm(fieldRef, *qt);
} else {
_words += countWords(fieldRef);
}
}
}
return retval;
}
size_t StrChrFieldSearcher::shortestTerm() const
{
size_t mintsz(_qtl.front()->termLen());
for (auto it=_qtl.begin()+1, mt=_qtl.end(); it != mt; it++) {
const QueryTerm & qt = **it;
mintsz = std::min(mintsz, qt.termLen());
}
return mintsz;
}
}
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