"io"
"io/ioutil"
"log"
- "os"
"time"
)
-var keepClient keepclient.KeepClient
-
/*
Keepstore initiates pull worker channel goroutine.
The channel will process pull list.
Skip the rest of the servers if no errors
Repeat
*/
-func RunPullWorker(pullq *WorkQueue, kc keepclient.KeepClient) {
+func RunPullWorker(pullq *WorkQueue, keepClient *keepclient.KeepClient) {
nextItem := pullq.NextItem
- keepClient = kc
for item := range nextItem {
- Pull(item.(PullRequest))
+ pullRequest := item.(PullRequest)
+ err := PullItemAndProcess(item.(PullRequest), GenerateRandomApiToken(), keepClient)
+ pullq.DoneItem <- struct{}{}
+ if err == nil {
+ log.Printf("Pull %s success", pullRequest)
+ } else {
+ log.Printf("Pull %s error: %s", pullRequest, err)
+ }
}
}
Using this token & signature, retrieve the given block.
Write to storage
*/
-func Pull(pullRequest PullRequest) (err error) {
- defer func() {
- if err == nil {
- log.Printf("Pull %s success", pullRequest)
- } else {
- log.Printf("Pull %s error: %s", pullRequest, err)
- }
- }()
+func PullItemAndProcess(pullRequest PullRequest, token string, keepClient *keepclient.KeepClient) (err error) {
+ keepClient.Arvados.ApiToken = token
service_roots := make(map[string]string)
for _, addr := range pullRequest.Servers {
service_roots[addr] = addr
}
- keepClient.SetServiceRoots(service_roots)
+ keepClient.SetServiceRoots(service_roots, nil, nil)
// Generate signature with a random token
- PermissionSecret = []byte(os.Getenv("ARVADOS_API_TOKEN"))
expires_at := time.Now().Add(60 * time.Second)
- signedLocator := SignLocator(pullRequest.Locator, GenerateRandomApiToken(), expires_at)
+ signedLocator := SignLocator(pullRequest.Locator, token, expires_at)
- reader, contentLen, _, err := GetContent(pullRequest.Locator, signedLocator)
+ reader, contentLen, _, err := GetContent(signedLocator, keepClient)
if err != nil {
return
}
}
// Fetch the content for the given locator using keepclient.
-var GetContent = func(locator string, signedLocator string) (reader io.ReadCloser, contentLength int64, url string, err error) {
+var GetContent = func(signedLocator string, keepClient *keepclient.KeepClient) (
+ reader io.ReadCloser, contentLength int64, url string, err error) {
reader, blocklen, url, err := keepClient.Get(signedLocator)
return reader, blocklen, url, err
}