nastra commented on code in PR #13966:
URL: https://github.com/apache/iceberg/pull/13966#discussion_r2348197178
##########
azure/src/main/java/org/apache/iceberg/azure/adlsv2/VendedAdlsCredentialProvider.java:
##########
@@ -78,6 +81,31 @@ Mono<String> credentialForAccount(String storageAccount) {
}
private AccessToken sasTokenForAccount(String storageAccount) {
+ return sasTokenFromProperties(storageAccount).orElseGet(() ->
fetchSasToken(storageAccount));
+ }
+
+ private Optional<AccessToken> sasTokenFromProperties(String storageAccount) {
+ String sasToken = properties.get(AzureProperties.ADLS_SAS_TOKEN_PREFIX +
storageAccount);
+ String tokenExpiresAtMillis =
+ properties.get(AzureProperties.ADLS_SAS_TOKEN_EXPIRES_AT_MS_PREFIX +
storageAccount);
+
+ if (Strings.isNullOrEmpty(sasToken) ||
Strings.isNullOrEmpty(tokenExpiresAtMillis)) {
+ return Optional.empty();
+ }
+
+ Instant expiresAt =
Instant.ofEpochMilli(Long.parseLong(tokenExpiresAtMillis));
+ Instant prefetchAt = expiresAt.minus(5, ChronoUnit.MINUTES);
Review Comment:
I don't think we need to make this configurable as of now. In almost all
cases the 5 min are usually enough and people almost never have to customize
this, so I would delegate this until it's actually needed for a particular use
case
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