blob: 22a464ed5fac191aeee287b7d6b7e90010ba404f (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchlib/fef/blueprint.h>
#include <vespa/searchcommon/attribute/attributecontent.h>
#include <vespa/searchlib/common/geo_gcd.h>
namespace search::features {
/** Convenience typedef. */
using GeoLocationSpecPtrs = std::vector<const search::common::GeoLocationSpec *>;
/**
* Implements the executor for the great circle distance feature.
*/
class GCDExecutor : public fef::FeatureExecutor {
private:
std::vector<search::common::GeoGcd> _locations;
const attribute::IAttributeVector * _pos;
attribute::IntegerContent _intBuf;
feature_t _best_lat;
feature_t _best_lng;
feature_t calculateGCD(uint32_t docId);
public:
/**
* Constructs an executor for the GCD feature.
*
* @param locations location objects associated with the query environment.
* @param pos the attribute to use for positions (expects zcurve encoding).
*/
GCDExecutor(GeoLocationSpecPtrs locations, const attribute::IAttributeVector * pos);
void execute(uint32_t docId) override;
};
/**
* Implements the blueprint for the GCD executor.
*/
class GreatCircleDistanceBlueprint : public fef::Blueprint {
private:
vespalib::string _field_name;
vespalib::string _attr_name;
bool setup_geopos(const fef::IIndexEnvironment & env, const vespalib::string &attr);
public:
GreatCircleDistanceBlueprint();
~GreatCircleDistanceBlueprint();
void visitDumpFeatures(const fef::IIndexEnvironment & env, fef::IDumpFeatureVisitor & visitor) const override;
fef::Blueprint::UP createInstance() const override;
fef::ParameterDescriptions getDescriptions() const override {
return fef::ParameterDescriptions().desc().string().desc().string().string();
}
bool setup(const fef::IIndexEnvironment & env, const fef::ParameterList & params) override;
fef::FeatureExecutor &createExecutor(const fef::IQueryEnvironment &env, vespalib::Stash &stash) const override;
};
}
|
