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Merge pull request #211 from amosproj/158-aggregator
Aggregation / Timeseries creation in backend
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,176 @@ | ||
| // SPDX-FileCopyrightText: 2024 Benedikt Zinn <[email protected]> | ||
| // | ||
| // SPDX-License-Identifier: MIT | ||
|
|
||
| use crate::collector::time_series::TimeSeries; | ||
| use crate::constants::TIMESERIES_LENGTH; | ||
| use ractor::concurrency::{Duration, JoinHandle}; | ||
| use ractor::{cast, Actor, ActorProcessingErr, ActorRef}; | ||
| use shared::ziofa::event::EventType; | ||
| use shared::ziofa::log_event::EventData; | ||
| use shared::ziofa::time_series_event::EventTypeEnum; | ||
| use shared::ziofa::time_series_event::TimeSeriesType; | ||
| use shared::ziofa::{Event, TimeSeriesEvent as ZioTimeSeriesEvent}; | ||
| use std::collections::HashMap; | ||
| use tokio::time; | ||
|
|
||
| pub struct Aggregator; | ||
| impl Aggregator { | ||
| fn convert_map_to_prototype( | ||
| time_series_map: HashMap<u32, TimeSeries>, | ||
| ) -> HashMap<u32, TimeSeriesType> { | ||
| let mut map = HashMap::<u32, TimeSeriesType>::with_capacity(time_series_map.len()); | ||
| for (id, time_series) in time_series_map { | ||
| map.insert(id, time_series.into()); | ||
| } | ||
| map | ||
| } | ||
| } | ||
|
|
||
| impl Default for Aggregator { | ||
| fn default() -> Self { | ||
| Aggregator | ||
| } | ||
| } | ||
|
|
||
| pub struct AggregatorState { | ||
| event_type: EventTypeEnum, | ||
| event_count_map: HashMap<u32, u64>, // map pid to count | ||
| timeframe: Duration, | ||
| event_actor: ActorRef<Event>, | ||
| timer: Option<JoinHandle<()>>, | ||
| time_series_map: HashMap<u32, TimeSeries>, | ||
| } | ||
|
|
||
| pub struct AggregatorArguments { | ||
| event_actor: ActorRef<Event>, | ||
| timeframe: time::Duration, | ||
| event_type_enum: EventTypeEnum, | ||
| } | ||
|
|
||
| impl AggregatorArguments { | ||
| pub fn _new( | ||
| event_actor: ActorRef<Event>, | ||
| timeframe: Duration, | ||
| event_type_enum: EventTypeEnum, | ||
| ) -> Self { | ||
| AggregatorArguments { | ||
| event_actor, | ||
| timeframe, | ||
| event_type_enum, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| impl TryFrom<AggregatorArguments> for AggregatorState { | ||
| type Error = ActorProcessingErr; | ||
| fn try_from(args: AggregatorArguments) -> Result<AggregatorState, Self::Error> { | ||
| Ok(AggregatorState { | ||
| event_type: args.event_type_enum, | ||
| event_count_map: HashMap::new(), | ||
| timeframe: args.timeframe, | ||
| event_actor: args.event_actor, | ||
| timer: None, | ||
| time_series_map: HashMap::new(), | ||
| }) | ||
| } | ||
| } | ||
|
|
||
| impl Actor for Aggregator { | ||
| type Msg = Event; | ||
| type State = AggregatorState; | ||
| type Arguments = AggregatorArguments; | ||
|
|
||
| async fn pre_start( | ||
| &self, | ||
| _: ActorRef<Self::Msg>, | ||
| args: Self::Arguments, | ||
| ) -> Result<Self::State, ActorProcessingErr> { | ||
| Self::State::try_from(args) | ||
| } | ||
|
|
||
| async fn post_start( | ||
| &self, | ||
| myself: ActorRef<Self::Msg>, | ||
| state: &mut Self::State, | ||
| ) -> Result<(), ActorProcessingErr> { | ||
| state.timer = Some(myself.send_interval(state.timeframe, || Event { event_type: None })); | ||
| Ok(()) | ||
| } | ||
|
|
||
| async fn post_stop( | ||
| &self, | ||
| _: ActorRef<Self::Msg>, | ||
| state: &mut AggregatorState, | ||
| ) -> Result<(), ActorProcessingErr> { | ||
| if let Some(timer) = state.timer.take() { | ||
| timer.abort(); | ||
| } | ||
| Ok(()) | ||
| } | ||
|
|
||
| async fn handle( | ||
| &self, | ||
| _: ActorRef<Self::Msg>, | ||
| msg: Self::Msg, | ||
| state: &mut AggregatorState, | ||
| ) -> Result<(), ActorProcessingErr> { | ||
| match msg.event_type { | ||
| Some(EventType::Log(event)) => { | ||
| let pid = match event.event_data.clone() { | ||
| Some(EventData::VfsWrite(item)) => item.pid, | ||
| Some(EventData::SysSendmsg(item)) => item.pid, | ||
| Some(EventData::JniReferences(item)) => item.pid, | ||
| Some(EventData::SysSigquit(item)) => item.pid, | ||
| Some(EventData::Gc(item)) => item.pid, | ||
| _ => { | ||
| panic!("unexpected event type"); | ||
| } | ||
| }; | ||
|
|
||
| let msg_event_type = EventTypeEnum::from(event); | ||
|
|
||
| if msg_event_type != state.event_type { | ||
| panic!( | ||
| "event type mismatch in Aggregator -> I was initialized with {:?}, but was send an {:?}", | ||
| state.event_type, msg_event_type | ||
| ); | ||
| } | ||
| state.event_count_map.entry(pid).or_insert(1); | ||
| } | ||
| _ => { | ||
| // event type is none -> timer was triggered -> send the metric | ||
| for (key, value) in state.event_count_map.iter() { | ||
| if !state.time_series_map.contains_key(key) { | ||
| let mut new_ts = TimeSeries::new(TIMESERIES_LENGTH); | ||
| new_ts.append(*value); | ||
| state.time_series_map.insert(*key, new_ts); | ||
| } else { | ||
| state.time_series_map.get_mut(key).unwrap().append(*value); | ||
| } | ||
| } | ||
|
|
||
| //convert type for sending | ||
| //ziofa::time_series_event::TimeSeries | ||
|
|
||
| let time_series = ZioTimeSeriesEvent { | ||
| event_type_enum: state.event_type.into(), | ||
| timeframe_ms: state.timeframe.as_millis() as u32, | ||
| time_series_map: Self::convert_map_to_prototype(state.time_series_map.clone()), | ||
| }; | ||
|
|
||
| cast!( | ||
| state.event_actor, | ||
| Event { | ||
| event_type: Some(EventType::TimeSeries(time_series)) | ||
| } | ||
| ) | ||
| .map_err(|_| ActorProcessingErr::from("Failed to send metric to event actor"))?; | ||
| for (_, value) in state.event_count_map.iter_mut() { | ||
| *value = 0; | ||
| } | ||
| } | ||
| } | ||
| Ok(()) | ||
| } | ||
| } |
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