// NewBuilder creates a new Builder given the gitinfo, and loads Tiles from the
// traceserver running at the given address. The tiles contain the last
// 'tileSize' commits and are built from Traces of the type that traceBuilder
// returns.
func NewMasterTileBuilder(db DB, git *gitinfo.GitInfo, tileSize int, evt *eventbus.EventBus) (MasterTileBuilder, error) {
ret := &masterTileBuilder{
tileSize: tileSize,
db: db,
git: git,
evt: evt,
}
if err := ret.LoadTile(); err != nil {
return nil, fmt.Errorf("NewTraceStore: Failed to load initial Tile: %s", err)
}
evt.Publish(NEW_TILE_AVAILABLE_EVENT, ret.GetTile())
go func() {
liveness := metrics.NewLiveness("perf-tracedb-tile-refresh")
for _ = range time.Tick(TILE_REFRESH_DURATION) {
if err := ret.LoadTile(); err != nil {
glog.Errorf("Failed to refresh tile: %s", err)
} else {
liveness.Update()
evt.Publish(NEW_TILE_AVAILABLE_EVENT, ret.GetTile())
}
}
}()
return ret, nil
}
