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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "attribute_collection_spec_factory.h"
#include "attribute_collection_spec.h"
#include <vespa/searchlib/attribute/configconverter.h>
#include <vespa/searchcommon/attribute/config.h>
using search::attribute::ConfigConverter;
using search::GrowStrategy;
namespace proton {
AttributeCollectionSpecFactory::AttributeCollectionSpecFactory(const AllocStrategy &alloc_strategy, bool fastAccessOnly)
: _alloc_strategy(alloc_strategy),
_fastAccessOnly(fastAccessOnly)
{
}
AttributeCollectionSpecFactory::~AttributeCollectionSpecFactory() = default;
std::unique_ptr<AttributeCollectionSpec>
AttributeCollectionSpecFactory::create(const AttributesConfig &attrCfg,
uint32_t docIdLimit,
std::optional<search::SerialNum> serialNum) const
{
AttributeCollectionSpec::AttributeList attrs;
// Amortize memory spike cost over N docs
const size_t skew = _alloc_strategy.get_amortize_count()/(attrCfg.attribute.size()+1);
GrowStrategy grow = _alloc_strategy.get_grow_strategy();
grow.setInitialCapacity(std::max(grow.getInitialCapacity(), size_t(docIdLimit)));
for (const auto &attr : attrCfg.attribute) {
search::attribute::Config cfg = ConfigConverter::convert(attr);
if (_fastAccessOnly && !cfg.fastAccess()) {
continue;
}
grow.setGrowDelta(grow.getGrowDelta() + skew);
cfg.setGrowStrategy(grow);
cfg.setCompactionStrategy(_alloc_strategy.get_compaction_strategy());
attrs.push_back(AttributeSpec(attr.name, cfg));
}
return std::make_unique<AttributeCollectionSpec>(std::move(attrs), docIdLimit, serialNum);
}
} // namespace proton
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