// BuildDataFetcher returns a data fetcher that fetches data from remote servers.
func BuildDataFetcher(arv arvadosclient.ArvadosClient) summary.DataFetcher {
return func(
arvLogger *logger.Logger,
readCollections *collection.ReadCollections,
keepServerInfo *keep.ReadServers,
) error {
collDone := make(chan struct{})
var collErr error
go func() {
*readCollections, collErr = collection.GetCollectionsAndSummarize(
collection.GetCollectionsParams{
Client: arv,
Logger: arvLogger,
BatchSize: collectionBatchSize})
collDone <- struct{}{}
}()
var keepErr error
*keepServerInfo, keepErr = keep.GetKeepServersAndSummarize(
keep.GetKeepServersParams{
Client: arv,
Logger: arvLogger,
Limit: 1000})
<-collDone
// Return a nil error only if both parts succeeded.
if collErr != nil {
return collErr
}
return keepErr
}
}
// Returns a data fetcher that fetches data from remote servers.
func BuildDataFetcher(arv arvadosclient.ArvadosClient) summary.DataFetcher {
return func(arvLogger *logger.Logger,
readCollections *collection.ReadCollections,
keepServerInfo *keep.ReadServers) {
collectionChannel := make(chan collection.ReadCollections)
go func() {
collectionChannel <- collection.GetCollectionsAndSummarize(
collection.GetCollectionsParams{
Client: arv,
Logger: arvLogger,
BatchSize: 50})
}()
*keepServerInfo = keep.GetKeepServersAndSummarize(
keep.GetKeepServersParams{
Client: arv,
Logger: arvLogger,
Limit: 1000})
*readCollections = <-collectionChannel
}
}