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|
package sturdyc
import (
"context"
"errors"
)
func (c *Client[T]) refresh(key string, fetchFn FetchFn[T]) {
response, err := fetchFn(context.Background())
if err != nil && !errors.Is(err, errOnlyDistributedRecords) {
if c.storeMissingRecords && errors.Is(err, ErrNotFound) {
c.StoreMissingRecord(key)
}
if !c.storeMissingRecords && errors.Is(err, ErrNotFound) {
c.Delete(key)
}
return
}
c.Set(key, response)
}
func (c *Client[T]) refreshBatch(ids []string, keyFn KeyFn, fetchFn BatchFetchFn[T]) {
c.reportBatchRefreshSize(len(ids))
response, err := fetchFn(context.Background(), ids)
if err != nil && !errors.Is(err, errOnlyDistributedRecords) {
return
}
// Check if any of the records have been deleted at the data source.
for _, id := range ids {
_, okCache, _, _, _ := c.getWithState(keyFn(id))
_, okResponse := response[id]
if okResponse {
continue
}
if !c.storeMissingRecords && !okResponse && okCache {
c.Delete(keyFn(id))
}
// If we're only getting records from the distributed storage, it means that we weren't able to get
// the remaining IDs for the batch from the underlying data source. We don't want to store these
// as missing records because we don't know if they're missing or not.
if c.storeMissingRecords && !okResponse && !errors.Is(err, errOnlyDistributedRecords) {
c.StoreMissingRecord(keyFn(id))
}
}
// Cache the refreshed records.
for id, record := range response {
c.Set(keyFn(id), record)
}
}
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