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fix: add env var to allow disabling directpath bound token #4189

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merged 1 commit into from
Oct 30, 2025
Merged

fix: add env var to allow disabling directpath bound token #4189

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14 changes: 10 additions & 4 deletions google-cloud-spanner/src/main/java/com/google/cloud/spanner/spi/v1/GapicSpannerRpc.java
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Original file line number Diff line number Diff line change
Expand Up @@ -368,10 +368,12 @@ public GapicSpannerRpc(final SpannerOptions options) {
boolean isEnableDirectAccess = options.isEnableDirectAccess();
if (isEnableDirectAccess) {
defaultChannelProviderBuilder.setAttemptDirectPath(true);
// This will let the credentials try to fetch a hard-bound access token if the runtime
// environment supports it.
defaultChannelProviderBuilder.setAllowHardBoundTokenTypes(
Collections.singletonList(InstantiatingGrpcChannelProvider.HardBoundTokenTypes.ALTS));
if (isEnableDirectPathBoundToken()) {
// This will let the credentials try to fetch a hard-bound access token if the runtime
// environment supports it.
defaultChannelProviderBuilder.setAllowHardBoundTokenTypes(
Collections.singletonList(InstantiatingGrpcChannelProvider.HardBoundTokenTypes.ALTS));
}
defaultChannelProviderBuilder.setAttemptDirectPathXds();
}

Expand Down Expand Up @@ -687,6 +689,10 @@ public static boolean isEnableDirectPathXdsEnv() {
return Boolean.parseBoolean(System.getenv("GOOGLE_SPANNER_ENABLE_DIRECT_ACCESS"));
}

public static boolean isEnableDirectPathBoundToken() {
return !Boolean.parseBoolean(System.getenv("GOOGLE_SPANNER_DISABLE_DIRECT_ACCESS_BOUND_TOKEN"));
}

private static final RetrySettings ADMIN_REQUESTS_LIMIT_EXCEEDED_RETRY_SETTINGS =
RetrySettings.newBuilder()
.setInitialRetryDelayDuration(Duration.ofSeconds(5L))
Expand Down
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