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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "integerbase.h"
#include "floatbase.h"
#include <vespa/vespalib/util/rcuvector.h>
#include <limits>
namespace search {
template <typename B>
class SingleValueNumericAttribute final : public B {
private:
using T = typename B::BaseType;
using DataVector = vespalib::RcuVectorBase<T>;
using DocId = typename B::DocId;
using EnumHandle = typename B::EnumHandle;
using Weighted = typename B::Weighted;
using WeightedEnum = typename B::WeightedEnum;
using WeightedFloat = typename B::WeightedFloat;
using WeightedInt = typename B::WeightedInt;
using generation_t = typename B::generation_t;
using largeint_t = typename B::largeint_t;
using B::getGenerationHolder;
DataVector _data;
T getFromEnum(EnumHandle e) const override {
(void) e;
return T();
}
/*
* Specialization of SearchContext
*/
template <typename M>
class SingleSearchContext final : public M, public AttributeVector::SearchContext
{
private:
const T * _data;
int32_t onFind(DocId docId, int32_t elemId, int32_t & weight) const override {
return find(docId, elemId, weight);
}
int32_t onFind(DocId docId, int elemId) const override {
return find(docId, elemId);
}
bool valid() const override;
public:
SingleSearchContext(std::unique_ptr<QueryTermSimple> qTerm, const NumericAttribute & toBeSearched);
int32_t find(DocId docId, int32_t elemId, int32_t & weight) const {
if ( elemId != 0) return -1;
const T v = _data[docId];
weight = 1;
return this->match(v) ? 0 : -1;
}
int32_t find(DocId docId, int elemId) const {
if ( elemId != 0) return -1;
const T v = _data[docId];
return this->match(v) ? 0 : -1;
}
Int64Range getAsIntegerTerm() const override;
std::unique_ptr<queryeval::SearchIterator>
createFilterIterator(fef::TermFieldMatchData * matchData, bool strict) override;
};
protected:
bool findEnum(T value, EnumHandle & e) const override {
(void) value; (void) e;
return false;
}
public:
SingleValueNumericAttribute(const vespalib::string & baseFileName,
const AttributeVector::Config & c =
AttributeVector::Config(AttributeVector::
BasicType::fromType(T()),
attribute::CollectionType::SINGLE));
~SingleValueNumericAttribute();
uint32_t getValueCount(DocId doc) const override {
if (doc >= B::getNumDocs()) {
return 0;
}
return 1;
}
void onCommit() override;
void onAddDocs(DocId lidLimit) override;
void onUpdateStat() override;
void removeOldGenerations(generation_t firstUsed) override;
void onGenerationChange(generation_t generation) override;
bool addDoc(DocId & doc) override;
bool onLoad(vespalib::Executor *executor) override;
bool onLoadEnumerated(ReaderBase &attrReader);
AttributeVector::SearchContext::UP
getSearch(std::unique_ptr<QueryTermSimple> term, const attribute::SearchContextParams & params) const override;
void set(DocId doc, T v) {
_data[doc] = v;
}
T getFast(DocId doc) const {
return _data[doc];
}
//-------------------------------------------------------------------------
// new read api
//-------------------------------------------------------------------------
T get(DocId doc) const override {
return getFast(doc);
}
largeint_t getInt(DocId doc) const override {
return static_cast<largeint_t>(getFast(doc));
}
double getFloat(DocId doc) const override {
return static_cast<double>(_data[doc]);
}
uint32_t getEnum(DocId doc) const override {
(void) doc;
return std::numeric_limits<uint32_t>::max(); // does not have enum
}
uint32_t getAll(DocId doc, T * v, uint32_t sz) const override {
(void) sz;
v[0] = _data[doc];
return 1;
}
uint32_t get(DocId doc, largeint_t * v, uint32_t sz) const override {
(void) sz;
v[0] = static_cast<largeint_t>(_data[doc]);
return 1;
}
uint32_t get(DocId doc, double * v, uint32_t sz) const override {
(void) sz;
v[0] = static_cast<double>(_data[doc]);
return 1;
}
uint32_t get(DocId doc, EnumHandle * e, uint32_t sz) const override {
(void) sz;
e[0] = getEnum(doc);
return 1;
}
uint32_t getAll(DocId doc, Weighted * v, uint32_t sz) const override {
(void) doc; (void) v; (void) sz;
return 0;
}
uint32_t get(DocId doc, WeightedInt * v, uint32_t sz) const override {
(void) sz;
v[0] = WeightedInt(static_cast<largeint_t>(_data[doc]));
return 1;
}
uint32_t get(DocId doc, WeightedFloat * v, uint32_t sz) const override {
(void) sz;
v[0] = WeightedFloat(static_cast<double>(_data[doc]));
return 1;
}
uint32_t get(DocId doc, WeightedEnum * e, uint32_t sz) const override {
(void) doc; (void) e; (void) sz;
return 0;
}
void clearDocs(DocId lidLow, DocId lidLimit) override;
void onShrinkLidSpace() override;
std::unique_ptr<AttributeSaver> onInitSave(vespalib::stringref fileName) override;
};
}
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