searchlib/src/vespa/searchlib/features/querytermcountfeature.cpp


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

// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.

#include "querytermcountfeature.h"
#include "valuefeature.h"
#include <vespa/searchlib/fef/properties.h>
#include <vespa/searchlib/fef/fieldinfo.h>
#include <vespa/searchlib/fef/featurenamebuilder.h>
#include <vespa/searchlib/fef/itermdata.h>
#include <vespa/vespalib/util/stash.h>


using namespace search::fef;

namespace search::features {

QueryTermCountBlueprint::QueryTermCountBlueprint() :
    Blueprint("queryTermCount")
{
}

void
QueryTermCountBlueprint::visitDumpFeatures(const IIndexEnvironment & env,
                                           IDumpFeatureVisitor & visitor) const
{
    (void) env;
    visitor.visitDumpFeature(getBaseName());
}

Blueprint::UP
QueryTermCountBlueprint::createInstance() const
{
    return std::make_unique<QueryTermCountBlueprint>();
}

bool
QueryTermCountBlueprint::setup(const IIndexEnvironment &,
                               const ParameterList &)
{
    describeOutput("out", "The number of query terms found in the query environment.");
    return true;
}

FeatureExecutor &
QueryTermCountBlueprint::createExecutor(const IQueryEnvironment &env, vespalib::Stash &stash) const
{
    return stash.create<SingleValueExecutor>(env.getNumTerms());
}

}