Greg/221/certificate store

mithril-aggregator/config/dev.json

@@ -3,5 +3,6 @@
     "url_snapshot_manifest": "https://storage.googleapis.com/cardano-testnet/snapshots.json",
     "snapshot_store_type": "local",
     "snapshot_uploader_type": "local",
-    "pending_certificate_store_directory": "/tmp/mithril/cert_db"
-}
+    "pending_certificate_store_directory": "/tmp/mithril/pending_cert_db",
+    "certificate_store_directory": "/tmp/mithril/cert_db"
+}

mithril-aggregator/src/certificate_store/certificate_store.rs

@@ -0,0 +1,113 @@
+#![allow(dead_code)]
+/// ↑ only until we plug this into main code
+use mithril_common::entities::Certificate;
+
+use thiserror::Error;
+
+use super::{store_adapter::AdapterError, StoreAdapter};
+
+#[derive(Debug, Error)]
+pub enum StoreError {
+    #[error("physical adapter returned an error: {0}")]
+    AdapterError(#[from] AdapterError),
+}
+
+type Adapter = Box<dyn StoreAdapter<Key = String, Record = Certificate>>;
+
+pub struct CertificateStore {
+    adapter: Adapter,
+}
+
+impl CertificateStore {
+    pub fn new(adapter: Adapter) -> Self {
+        Self { adapter }
+    }
+
+    pub async fn get_from_hash(&self, hash: &str) -> Result<Option<Certificate>, StoreError> {
+        Ok(self.adapter.get_record(&hash.to_string()).await?)
+    }
+
+    pub async fn save(&mut self, certificate: Certificate) -> Result<(), StoreError> {
+        Ok(self
+            .adapter
+            .store_record(&certificate.hash, &certificate)
+            .await?)
+    }
+
+    pub async fn get_list(&self, last_n: usize) -> Result<Vec<Certificate>, StoreError> {
+        let vars = self.adapter.get_last_n_records(last_n).await?;
+        let result = vars.into_iter().map(|(_, y)| y).collect();
+
+        Ok(result)
+    }
+}
+
+#[cfg(test)]
+mod test {
+    use super::*;
+    use crate::certificate_store::dumb_adapter::DumbStoreAdapter;
+    use mithril_common::fake_data::{self};
+
+    async fn get_certificate_store(size: u64) -> CertificateStore {
+        let mut adapter: DumbStoreAdapter<String, Certificate> = DumbStoreAdapter::new();
+
+        for ix in 0..size {
+            let certificate = fake_data::certificate(format!("cert_{:0>2}", ix));
+            adapter
+                .store_record(&certificate.hash, &certificate)
+                .await
+                .unwrap();
+        }
+        let store = CertificateStore::new(Box::new(adapter));
+
+        store
+    }
+
+    #[tokio::test]
+    async fn list_is_empty() {
+        let store = get_certificate_store(0).await;
+
+        assert_eq!(0, store.get_list(100).await.unwrap().len());
+    }
+
+    #[tokio::test]
+    async fn list_has_some_members() {
+        let store = get_certificate_store(1).await;
+
+        assert_eq!(1, store.get_list(100).await.unwrap().len());
+    }
+
+    #[tokio::test]
+    async fn get_certificate_with_good_hash() {
+        let store = get_certificate_store(1).await;
+        let result = store.get_from_hash("cert_00").await.unwrap();
+        assert!(result.is_some());
+    }
+
+    #[tokio::test]
+    async fn get_certificate_with_wrong_hash() {
+        let store = get_certificate_store(1).await;
+        let result = store.get_from_hash("cert_99").await.unwrap();
+        assert!(result.is_none());
+    }
+
+    #[tokio::test]
+    async fn save_certificate_once() {
+        let mut store = get_certificate_store(1).await;
+        let certificate = fake_data::certificate(format!("{}", "123".to_string()));
+
+        assert!(store.save(certificate).await.is_ok());
+    }
+
+    #[tokio::test]
+    async fn update_certificate() {
+        let mut store = get_certificate_store(1).await;
+        let mut certificate = store.get_from_hash("cert_00").await.unwrap().unwrap();
+
+        certificate.previous_hash = "whatever".to_string();
+        assert!(store.save(certificate).await.is_ok());
+        let certificate = store.get_from_hash("cert_00").await.unwrap().unwrap();
+
+        assert_eq!("whatever".to_string(), certificate.previous_hash);
+    }
+}

mithril-aggregator/src/certificate_store/mod.rs

@@ -1,7 +1,9 @@
+mod certificate_store;
 mod jsonfile_store_adapter;
 mod pending_certificate_store;
 mod store_adapter;
 
+pub use certificate_store::CertificateStore;
 pub use jsonfile_store_adapter::JsonFileStoreAdapter;
 pub use pending_certificate_store::CertificatePendingStore;
 pub use store_adapter::{AdapterError, StoreAdapter};

mithril-aggregator/src/dependency.rs

@@ -1,5 +1,5 @@
 use crate::beacon_store::BeaconStore;
-use crate::CertificatePendingStore;
+use crate::{CertificatePendingStore, CertificateStore};
 use std::sync::Arc;
 use tokio::sync::RwLock;
 
@@ -18,13 +18,16 @@ pub type MultiSignerWrapper = Arc<RwLock<dyn MultiSigner>>;
 
 pub type CertificatePendingStoreWrapper = Arc<RwLock<CertificatePendingStore>>;
 
+pub type CertificateStoreWrapper = Arc<RwLock<CertificateStore>>;
+
 /// DependencyManager handles the dependencies
 pub struct DependencyManager {
     pub config: Config,
     pub snapshot_store: Option<SnapshotStoreWrapper>,
     pub multi_signer: Option<MultiSignerWrapper>,
     pub beacon_store: Option<BeaconStoreWrapper>,
     pub certificate_pending_store: Option<CertificatePendingStoreWrapper>,
+    pub certificate_store: Option<CertificateStoreWrapper>,
 }
 
 impl DependencyManager {
@@ -36,6 +39,7 @@ impl DependencyManager {
             multi_signer: None,
             beacon_store: None,
             certificate_pending_store: None,
+            certificate_store: None,
         }
     }
 
@@ -64,4 +68,12 @@ impl DependencyManager {
         self.certificate_pending_store = Some(certificate_pending_store);
         self
     }
+
+    pub fn with_certificate_store(
+        &mut self,
+        certificate_store: CertificateStoreWrapper,
+    ) -> &mut Self {
+        self.certificate_store = Some(certificate_store);
+        self
+    }
 }

mithril-aggregator/src/entities.rs

@@ -34,6 +34,9 @@ pub struct Config {
 
     /// Directory to store pending certificates
     pub pending_certificate_store_directory: PathBuf,
+
+    /// Directory to store certificates
+    pub certificate_store_directory: PathBuf,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]

mithril-aggregator/src/http_server.rs

@@ -536,7 +536,9 @@ mod tests {
             server_url: "http://0.0.0.0:8080".to_string(),
             db_directory: Default::default(),
             snapshot_directory: Default::default(),
-            pending_certificate_store_directory: std::env::temp_dir().join("mithril_test_cert_db"),
+            pending_certificate_store_directory: std::env::temp_dir()
+                .join("mithril_test_pending_cert_db"),
+            certificate_store_directory: std::env::temp_dir().join("mithril_test_cert_db"),
         };
         DependencyManager::new(config)
     }

mithril-aggregator/src/lib.rs

@@ -16,7 +16,7 @@ pub use crate::multi_signer::{MultiSigner, MultiSignerImpl, ProtocolError};
 pub use crate::snapshot_stores::{RemoteSnapshotStore, SnapshotStore};
 pub use beacon_store::{BeaconStore, BeaconStoreError, MemoryBeaconStore};
 pub use certificate_store::{
-    AdapterError, CertificatePendingStore, JsonFileStoreAdapter, StoreAdapter,
+    AdapterError, CertificatePendingStore, CertificateStore, JsonFileStoreAdapter, StoreAdapter,
 };
 pub use dependency::DependencyManager;
 pub use runtime::AggregatorRuntime;

mithril-aggregator/src/main.rs

@@ -4,8 +4,8 @@ use clap::Parser;
 
 use config::{Map, Source, Value, ValueKind};
 use mithril_aggregator::{
-    AggregatorRuntime, CertificatePendingStore, Config, DependencyManager, JsonFileStoreAdapter,
-    MemoryBeaconStore, MultiSigner, MultiSignerImpl, Server,
+    AggregatorRuntime, CertificatePendingStore, CertificateStore, Config, DependencyManager,
+    JsonFileStoreAdapter, MemoryBeaconStore, MultiSigner, MultiSignerImpl, Server,
 };
 use mithril_common::crypto_helper::ProtocolStakeDistribution;
 use mithril_common::fake_data;
@@ -132,14 +132,18 @@ async fn main() -> Result<(), Box<dyn Error>> {
     let certificate_pending_store = Arc::new(RwLock::new(CertificatePendingStore::new(Box::new(
         JsonFileStoreAdapter::new(config.pending_certificate_store_directory.clone())?,
     ))));
+    let certificate_store = Arc::new(RwLock::new(CertificateStore::new(Box::new(
+        JsonFileStoreAdapter::new(config.certificate_store_directory.clone())?,
+    ))));
 
     // Init dependency manager
     let mut dependency_manager = DependencyManager::new(config.clone());
     dependency_manager
         .with_snapshot_store(snapshot_store.clone())
         .with_multi_signer(multi_signer.clone())
         .with_beacon_store(beacon_store.clone())
-        .with_certificate_pending_store(certificate_pending_store.clone());
+        .with_certificate_pending_store(certificate_pending_store.clone())
+        .with_certificate_store(certificate_store.clone());
     let dependency_manager = Arc::new(dependency_manager);
 
     // Start snapshot uploader
@@ -154,6 +158,8 @@ async fn main() -> Result<(), Box<dyn Error>> {
             multi_signer.clone(),
             snapshot_store.clone(),
             snapshot_uploader,
+            certificate_pending_store.clone(),
+            certificate_store.clone(),
         );
         runtime.run().await
     });

mithril-aggregator/src/runtime.rs

@@ -6,6 +6,7 @@ use mithril_common::digesters::{Digester, DigesterError, ImmutableDigester};
 use mithril_common::entities::Beacon;
 use mithril_common::fake_data;
 
+use crate::dependency::{CertificatePendingStoreWrapper, CertificateStoreWrapper};
 use crate::snapshot_stores::SnapshotStoreError;
 use crate::snapshot_uploaders::{SnapshotLocation, SnapshotUploader};
 use chrono::{DateTime, Utc};
@@ -68,6 +69,12 @@ pub struct AggregatorRuntime {
 
     /// Snapshot uploader
     snapshot_uploader: Box<dyn SnapshotUploader>,
+
+    /// Pending certificate store
+    certificate_pending_store: CertificatePendingStoreWrapper,
+
+    /// Certificate store
+    certificate_store: CertificateStoreWrapper,
 }
 
 impl AggregatorRuntime {
@@ -83,6 +90,8 @@ impl AggregatorRuntime {
         multi_signer: MultiSignerWrapper,
         snapshot_store: SnapshotStoreWrapper,
         snapshot_uploader: Box<dyn SnapshotUploader>,
+        certificate_pending_store: CertificatePendingStoreWrapper,
+        certificate_store: CertificateStoreWrapper,
     ) -> Self {
         Self {
             interval,
@@ -93,6 +102,8 @@ impl AggregatorRuntime {
             multi_signer,
             snapshot_store,
             snapshot_uploader,
+            certificate_pending_store,
+            certificate_store,
         }
     }
 

mithril-test-lab/mithril-end-to-end/src/Mithril/Aggregator.hs

@@ -100,7 +100,8 @@ aggregatorProcess cwd port = do
             ("URL_SNAPSHOT_MANIFEST", "https://storage.googleapis.com/cardano-testnet/snapshots.json"),
             ("SNAPSHOT_STORE_TYPE", "local"),
             ("SNAPSHOT_UPLOADER_TYPE", "local"),
-            ("PENDING_CERTIFICATE_STORE_DIRECTORY", "./pending-certs")
+            ("PENDING_CERTIFICATE_STORE_DIRECTORY", "./store/pending-certs"),
+            ("CERTIFICATE_STORE_DIRECTORY", "./store/certs")
           ]
             <> baseEnv
   unlessM (doesFileExist aggregator) $ failure $ "cannot find mithril-aggregator executable in expected location (" <> binDir <> ")"