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//
// Copyright (c) 2020-2021 science+computing ag and other contributors
//
// This program and the accompanying materials are made
// available under the terms of the Eclipse Public License 2.0
// which is available at https://www.eclipse.org/legal/epl-2.0/
//
// SPDX-License-Identifier: EPL-2.0
//
use std::path::PathBuf;
use std::sync::Arc;
use anyhow::anyhow;
use anyhow::Context;
use anyhow::Error;
use anyhow::Result;
use diesel::PgConnection;
use log::trace;
use tokio::sync::RwLock;
use typed_builder::TypedBuilder;
use uuid::Uuid;
use crate::config::Configuration;
use crate::db::models::Artifact;
use crate::db::models::Submit;
use crate::endpoint::EndpointConfiguration;
use crate::endpoint::EndpointScheduler;
use crate::filestore::MergedStores;
use crate::filestore::ReleaseStore;
use crate::filestore::StagingStore;
use crate::job::JobSet;
use crate::job::RunnableJob;
use crate::source::SourceCache;
use crate::util::progress::ProgressBars;
pub struct Orchestrator<'a> {
scheduler: EndpointScheduler,
progress_generator: ProgressBars,
merged_stores: MergedStores,
source_cache: SourceCache,
jobsets: Vec<JobSet>,
config: &'a Configuration,
}
#[derive(TypedBuilder)]
pub struct OrchestratorSetup<'a> {
progress_generator: ProgressBars,
endpoint_config: Vec<EndpointConfiguration>,
staging_store: Arc<RwLock<StagingStore>>,
release_store: Arc<RwLock<ReleaseStore>>,
source_cache: SourceCache,
jobsets: Vec<JobSet>,
database: Arc<PgConnection>,
submit: Submit,
log_dir: Option<PathBuf>,
config: &'a Configuration,
}
impl<'a> OrchestratorSetup<'a> {
pub async fn setup(self) -> Result<Orchestrator<'a>> {
let scheduler = EndpointScheduler::setup(
self.endpoint_config,
self.staging_store.clone(),
self.database,
self.submit.clone(),
self.log_dir,
)
.await?;
Ok(Orchestrator {
scheduler,
progress_generator: self.progress_generator,
merged_stores: MergedStores::new(self.release_store, self.staging_store),
source_cache: self.source_cache,
jobsets: self.jobsets,
config: self.config,
})
}
}
impl<'a> Orchestrator<'a> {
pub async fn run(self, output: &mut Vec<Artifact>) -> Result<Vec<(Uuid, anyhow::Error)>> {
for jobset in self.jobsets.into_iter() {
let errs = Self::run_jobset(
&self.scheduler,
&self.merged_stores,
&self.source_cache,
&self.config,
&self.progress_generator,
jobset,
output,
)
.await?;
if !errs.is_empty() {
return Ok(errs);
}
}
Ok(vec![])
}
async fn run_jobset(
scheduler: &EndpointScheduler,
merged_store: &MergedStores,
source_cache: &SourceCache,
config: &Configuration,
progress_generator: &ProgressBars,
jobset: JobSet,
output: &mut Vec<Artifact>,
) -> Result<Vec<(Uuid, anyhow::Error)>> {
use tokio::stream::StreamExt;
let multibar = Arc::new(indicatif::MultiProgress::new());
let results = jobset // run the jobs in the set
.into_runables(&merged_store, source_cache, config)
.await?
.into_iter()
.map(|runnable| {
let bar = multibar.add(progress_generator.bar());
async {
let uuid = *runnable.uuid();
Self::run_runnable(runnable, scheduler, bar)
.await
.map_err(|e| (uuid, e))
}
})
.collect::<futures::stream::FuturesUnordered<_>>()
.collect::<Vec<std::result::Result<Vec<Artifact>, (Uuid, Error)>>>();
let multibar_block = tokio::task::spawn_blocking(move || multibar.join());
let (results, barres) = tokio::join!(results, multibar_block);
let _ = barres?;
let (okays, errors): (Vec<_>, Vec<_>) = results
.into_iter()
.inspect(|e| trace!("Processing result from jobset run: {:?}", e))
.partition(|e| e.is_ok());
let results = okays
.into_iter()
.filter_map(Result::ok)
.flatten()
.collect::<Vec<Artifact>>();
{
// check if all paths that were written are actually there in the staging store
let staging_store_lock = merged_store.staging().read().await;
trace!("Checking {} results...", results.len());
for artifact in results.iter() {
let a_path = artifact.path_buf();
trace!("Checking path: {}", a_path.display());
if !staging_store_lock.path_exists_in_store_root(&a_path) {
return Err(anyhow!(
"Result path {} is missing from staging store",
a_path.display()
))
.with_context(|| {
anyhow!(
"Should be: {}/{}",
staging_store_lock.root_path().display(),
a_path.display()
)
})
.map_err(Error::from);
}
}
}
let mut results = results; // rebind
output.append(&mut results);
Ok(errors.into_iter().filter_map(Result::err).collect())
}
async fn run_runnable(
runnable: RunnableJob,
scheduler: &EndpointScheduler,
bar: indicatif::ProgressBar,
) -> Result<Vec<Artifact>> {
let job_id = *runnable.uuid();
trace!(
"Runnable {} for package {}",
job_id,
runnable.package().name()
);
let jobhandle = scheduler.schedule_job(runnable, bar).await?;
trace!("Jobhandle -> {:?}", jobhandle);
let r = jobhandle.run().await;
trace!("Found result in job {}: {:?}", job_id, r);
r
}
}
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