public BatchOperation(IStoreBatchProgress store, MigrationConfig config)
{
_store = store;
_config = config;
_processed = _store.StartOrContinue(config.Name);
EventStore.Logger.Debug($"'{config.Name}' [migration] starts/resumes after {_processed.Value} commits");
}
public void MigrateEventsTo(IStoreEvents newStorage, string name, Action <IConfigMigration> config = null)
{
name.MustNotBeEmpty();
var conf = new MigrationConfig(name);
config?.Invoke(conf);
var l = EventStore.Logger;
var rew = new EventsRewriter(conf.Converters, _settings.EventMappers);
l.Debug("Starting store migration with batch operation: {name}", name);
using (var operation = new BatchOperation(_store, conf))
{
Optional <Commit> commit;
do
{
commit = operation.GetNextCommit();
if (commit.HasValue)
{
l.Debug("Importing commit {commit}", commit.Value.CommitId);
newStorage.Advanced.ImportCommit(rew.Rewrite(commit.Value));
}
} while (commit.HasValue);
}
l.Debug("Migration {name} completed", name);
}