public void GenerateReadModel(string operationName, Action <dynamic> modelUpdater, Action <IConfigReadModelGeneration> config = null)
{
operationName.MustNotBeEmpty();
var conf = new ReadModelGenerationConfig(operationName);
config?.Invoke(conf);
void HandleCommit(Commit commit, Action <dynamic> updater)
{
var evs = Utils.UnpackEvents(commit.Timestamp, commit.EventData, _settings.EventMappers);
foreach (var ev in evs)
{
EventStore.Logger.Debug("Updating readmodel from {@event}", ev);
updater((dynamic)ev);
}
}
using (var operation = new BatchOperation(_store, conf))
{
Optional <Commit> commit;
do
{
commit = operation.GetNextCommit();
if (commit.HasValue)
{
HandleCommit(commit.Value, modelUpdater);
}
} while (commit.HasValue);
}
}
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);
}
