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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "posocc_fields_params.h"
#include <vespa/searchlib/index/postinglistparams.h>
#include <vespa/searchlib/index/schemautil.h>
#include <vespa/vespalib/data/fileheader.h>
#include <vespa/vespalib/stllike/asciistream.h>
#include <cassert>
#include <vespa/log/log.h>
LOG_SETUP(".posocc_fields_params");
using search::index::SchemaUtil;
using vespalib::GenericHeader;
namespace search::bitcompression {
PosOccFieldsParams::PosOccFieldsParams()
: _numFields(0u),
_fieldParams(nullptr),
_params()
{
}
PosOccFieldsParams::PosOccFieldsParams(const PosOccFieldsParams &rhs)
: _numFields(0u),
_fieldParams(nullptr),
_params(rhs._params)
{
cacheParamsRef();
}
PosOccFieldsParams &
PosOccFieldsParams::operator=(const PosOccFieldsParams &rhs)
{
assertCachedParamsRef();
_params = rhs._params;
cacheParamsRef();
return *this;
}
void
PosOccFieldsParams::assertCachedParamsRef() const {
assert(_numFields == _params.size());
assert(_fieldParams == (_params.empty() ? nullptr : &_params[0]));
}
bool
PosOccFieldsParams::operator==(const PosOccFieldsParams &rhs) const
{
return _params == rhs._params;
}
void
PosOccFieldsParams::getParams(PostingListParams ¶ms) const
{
assertCachedParamsRef();
assert(_numFields == 1u); // Only single field for now
params.set("numFields", _numFields);
// Single posting file index format will have multiple fields in file
for (uint32_t field = 0; field < _numFields; ++field) {
_fieldParams[field].getParams(params, field);
}
}
void
PosOccFieldsParams::setParams(const PostingListParams ¶ms)
{
assertCachedParamsRef();
uint32_t numFields = _numFields;
params.get("numFields", numFields);
assert(numFields == 1u);
_params.resize(numFields);
cacheParamsRef();
// Single posting file index format will have multiple fields in file
for (uint32_t field = 0; field < numFields; ++field) {
_params[field].setParams(params, field);
}
}
void
PosOccFieldsParams::setSchemaParams(const Schema &schema,
const uint32_t indexId)
{
assertCachedParamsRef();
SchemaUtil::IndexIterator i(schema, indexId);
assert(i.isValid());
_params.resize(1u);
cacheParamsRef();
const Schema::IndexField &field = schema.getIndexField(indexId);
if (!SchemaUtil::validateIndexField(field)) {
LOG_ABORT("should not be reached");
}
_params[0].setSchemaParams(schema, indexId);
}
void
PosOccFieldsParams::readHeader(const vespalib::GenericHeader &header,
const vespalib::string &prefix)
{
vespalib::string numFieldsKey(prefix + "numFields");
assertCachedParamsRef();
uint32_t numFields = header.getTag(numFieldsKey).asInteger();
assert(numFields == 1u);
_params.resize(numFields);
cacheParamsRef();
// Single posting file index format will have multiple fields in file
for (uint32_t field = 0; field < numFields; ++field) {
vespalib::asciistream as;
as << prefix << "field[" << field << "].";
vespalib::string subPrefix(as.str());
_params[field].readHeader(header, subPrefix);
}
}
void
PosOccFieldsParams::writeHeader(vespalib::GenericHeader &header,
const vespalib::string &prefix) const
{
vespalib::string numFieldsKey(prefix + "numFields");
assertCachedParamsRef();
assert(_numFields == 1u);
header.putTag(GenericHeader::Tag(numFieldsKey, _numFields));
// Single posting file index format will have multiple fields in file
for (uint32_t field = 0; field < _numFields; ++field) {
vespalib::asciistream as;
as << prefix << "field[" << field << "].";
vespalib::string subPrefix(as.str());
_params[field].writeHeader(header, subPrefix);
}
}
void
PosOccFieldsParams::set_field_length_info(const index::FieldLengthInfo &field_length_info)
{
assert(!_params.empty());
_params.front().set_field_length_info(field_length_info);
}
}
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