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// Copyright (C) 2020 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import {ColumnDef} from '../../common/aggregation_data';
import {Engine} from '../../common/engine';
import {Area, Sorting} from '../../common/state';
import {tpDurationToSeconds} from '../../common/time';
import {globals} from '../../frontend/globals';
import {Config, COUNTER_TRACK_KIND} from '../../tracks/counter';
import {AggregationController} from './aggregation_controller';
export class CounterAggregationController extends AggregationController {
async createAggregateView(engine: Engine, area: Area) {
await engine.query(`drop view if exists ${this.kind};`);
const ids = [];
for (const trackId of area.tracks) {
const track = globals.state.tracks[trackId];
// Track will be undefined for track groups.
if (track !== undefined && track.kind === COUNTER_TRACK_KIND) {
const config = track.config as Config;
// TODO(hjd): Also aggregate annotation (with namespace) counters.
if (config.namespace === undefined) {
ids.push(config.trackId);
}
}
}
if (ids.length === 0) return false;
const duration = area.end - area.start;
const durationSec = tpDurationToSeconds(duration);
const query = `create view ${this.kind} as select
name,
count(1) as count,
round(sum(weighted_value)/${duration}, 2) as avg_value,
last as last_value,
first as first_value,
max(last) - min(first) as delta_value,
round((max(last) - min(first))/${durationSec}, 2) as rate,
min(value) as min_value,
max(value) as max_value
from
(select *,
(min(ts + dur, ${area.end}) - max(ts,${area.start}))
* value as weighted_value,
first_value(value) over
(partition by track_id order by ts) as first,
last_value(value) over
(partition by track_id order by ts
range between unbounded preceding and unbounded following) as last
from experimental_counter_dur
where track_id in (${ids})
and ts + dur >= ${area.start} and
ts <= ${area.end})
join counter_track
on track_id = counter_track.id
group by track_id`;
await engine.query(query);
return true;
}
getColumnDefinitions(): ColumnDef[] {
return [
{
title: 'Name',
kind: 'STRING',
columnConstructor: Uint16Array,
columnId: 'name',
},
{
title: 'Delta value',
kind: 'NUMBER',
columnConstructor: Float64Array,
columnId: 'delta_value',
},
{
title: 'Rate /s',
kind: 'Number',
columnConstructor: Float64Array,
columnId: 'rate',
},
{
title: 'Weighted avg value',
kind: 'Number',
columnConstructor: Float64Array,
columnId: 'avg_value',
},
{
title: 'Count',
kind: 'Number',
columnConstructor: Float64Array,
columnId: 'count',
sum: true,
},
{
title: 'First value',
kind: 'NUMBER',
columnConstructor: Float64Array,
columnId: 'first_value',
},
{
title: 'Last value',
kind: 'NUMBER',
columnConstructor: Float64Array,
columnId: 'last_value',
},
{
title: 'Min value',
kind: 'NUMBER',
columnConstructor: Float64Array,
columnId: 'min_value',
},
{
title: 'Max value',
kind: 'NUMBER',
columnConstructor: Float64Array,
columnId: 'max_value',
},
];
}
async getExtra() {}
getTabName() {
return 'Counters';
}
getDefaultSorting(): Sorting {
return {column: 'name', direction: 'DESC'};
}
}
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