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This repository was archived by the owner on May 8, 2026. It is now read-only.

docs(sample): Update the subscribe with error listener and subscribe with exactly-once samples #2437

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michaelpri10 merged 3 commits into from
May 22, 2025
Merged

docs(sample): Update the subscribe with error listener and subscribe with exactly-once samples #2437

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2989aad
docs(sample): Update SubscribeWithErrorListener sample to not rebuild…
michaelpri10 May 22, 2025
d8acb26
docs(sample): Add locational endpoint for exactly-once subscriber sample
michaelpri10 May 22, 2025
4905636
docs(sample): Add comment explaining reasoning for locational endpoint
michaelpri10 May 22, 2025
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8 changes: 2 additions & 6 deletions 8 samples/snippets/src/main/java/pubsub/SubscribeWithErrorListenerExample.java
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Original file line number Diff line number Diff line change
Expand Up @@ -62,15 +62,11 @@ public static void subscribeWithErrorListenerExample(String projectId, String su
.setExecutorProvider(executorProvider)
.build();

// Listen for unrecoverable failures. Rebuild a subscriber and restart subscribing
// when the current subscriber encounters permanent errors.
// Listen for unrecoverable failures.
subscriber.addListener(
new Subscriber.Listener() {
public void failed(Subscriber.State from, Throwable failure) {
System.out.println(failure.getStackTrace());
if (!executorProvider.getExecutor().isShutdown()) {
subscribeWithErrorListenerExample(projectId, subscriptionId);
}
System.out.println("Unrecoverable subscriber failure:" + failure.getStackTrace());
}
},
MoreExecutors.directExecutor());
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9 changes: 8 additions & 1 deletion 9 ...es/snippets/src/main/java/pubsub/SubscribeWithExactlyOnceConsumerWithResponseExample.java
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Original file line number Diff line number Diff line change
Expand Up @@ -95,7 +95,14 @@ public static void subscribeWithExactlyOnceConsumerWithResponseExample(

Subscriber subscriber = null;
try {
subscriber = Subscriber.newBuilder(subscriptionName, receiverWithResponse).build();
// Pub/Sub's exactly once delivery guarantee only applies when subscribers connect to the
// service in the same region.
// For list of locational endpoints for Pub/Sub, see
// https://cloud.google.com/pubsub/docs/reference/service_apis_overview#list_of_locational_endpoints
subscriber =
Subscriber.newBuilder(subscriptionName, receiverWithResponse)
.setEndpoint("us-west1-pubsub.googleapis.com:443")
.build();
// Start the subscriber.
subscriber.startAsync().awaitRunning();
System.out.printf("Listening for messages on %s:\n", subscriptionName.toString());
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