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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "nowfeature.h"
#include <vespa/searchlib/fef/queryproperties.h>
#include <vespa/searchlib/fef/properties.h>
#include <vespa/vespalib/util/stash.h>
#include <chrono>
namespace search::features {
NowExecutor::NowExecutor(int64_t timestamp) :
fef::FeatureExecutor(),
_timestamp(timestamp)
{
}
void
NowExecutor::execute(uint32_t) {
outputs().set_number(0, _timestamp);
}
void
NowBlueprint::visitDumpFeatures(const fef::IIndexEnvironment &, fef::IDumpFeatureVisitor &) const
{
}
bool
NowBlueprint::setup(const fef::IIndexEnvironment &, const fef::ParameterList &)
{
describeOutput("out", "The timestamp (seconds since epoch) of query execution.");
return true;
}
fef::Blueprint::UP
NowBlueprint::createInstance() const
{
return std::make_unique<NowBlueprint>();
}
using namespace std::chrono;
fef::FeatureExecutor &
NowBlueprint::createExecutor(const fef::IQueryEnvironment &env, vespalib::Stash &stash) const
{
int64_t timestamp;
const fef::Property &prop = env.getProperties().lookup(fef::queryproperties::now::SystemTime::NAME);
if (prop.found()) {
timestamp = atoll(prop.get().c_str());
} else {
timestamp = duration_cast<seconds>(system_clock::now().time_since_epoch()).count();
}
return stash.create<NowExecutor>(timestamp);
}
}
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