public static async Task <(IStore store, StoreError err)> Load(int cacheSize, string path, ILogger logger)
{
logger = logger.AddNamedContext("LocalDbStore");
logger.Verbose("Load store");
var db = new DBreezeEngine(new DBreezeConfiguration
{
DBreezeDataFolderName = path
});
var store = new LocalDbStore(
null,
null,
db,
path,
logger
);
using (var tx = store.BeginTx())
{
var(participants, err) = await store.DbGetParticipants();
if (err != null)
{
return(null, err);
}
var inmemStore = new InmemStore(participants, cacheSize, logger);
//read roots from db and put them in InmemStore
var roots = new Dictionary <string, Root>();
foreach (var p in participants)
{
Root root;
(root, err) = await store.DbGetRoot(p.Key);
if (err != null)
{
return(null, err);
}
roots[p.Key] = root;
}
err = inmemStore.Reset(roots);
if (err != null)
{
return(null, err);
}
store.participants = participants;
store.InMemStore = inmemStore;
tx.Commit();
}
return(store, null);
}
private LocalDbStore(Dictionary <string, int> participants, InmemStore inMemStore, DBreezeEngine db, string path, ILogger logger)
{
this.participants = participants;
InMemStore = inMemStore;
this.db = db;
Path = path;
this.logger = logger;
}
//LoadBadgerStore creates a Store from an existing database
public static async Task <(IStore store, StoreError err)> New(Dictionary <string, int> participants, int cacheSize, string path, ILogger logger)
{
logger = logger.AddNamedContext("LocalDbStore");
logger.Verbose("New store");
var inmemStore = new InmemStore(participants, cacheSize, logger);
var db = new DBreezeEngine(new DBreezeConfiguration
{
//Storage = DBreezeConfiguration.eStorage.MEMORY,
DBreezeDataFolderName = path
});
var store = new LocalDbStore(
participants,
inmemStore,
db,
path,
logger
);
using (var tx = store.BeginTx())
{
var err = await store.DbSetParticipants(participants);
if (err != null)
{
return(null, err);
}
err = await store.DbSetRoots(inmemStore.Roots);
if (err != null)
{
return(null, err);
}
tx.Commit();
}
return(store, null);
}