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src/examples/java/io/nats/examples/RetrierPublishAsyncExample.java
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| // Copyright 2024 The NATS Authors | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at: | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package io.nats.examples; | ||
|
|
||
| import io.nats.client.Connection; | ||
| import io.nats.client.JetStreamApiException; | ||
| import io.nats.client.Nats; | ||
| import io.nats.client.api.PublishAck; | ||
| import io.nats.client.api.StorageType; | ||
| import io.nats.client.api.StreamConfiguration; | ||
| import io.nats.client.utility.Retrier; | ||
| import io.nats.client.utility.RetryConfig; | ||
|
|
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| import java.io.IOException; | ||
| import java.util.concurrent.CompletableFuture; | ||
| import java.util.concurrent.TimeUnit; | ||
|
|
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| public class RetrierPublishAsyncExample { | ||
|
|
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| public static String STREAM = "retrier"; | ||
| public static String SUBJECT = "retriersub"; | ||
|
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| public static void main(String[] args) throws InterruptedException { | ||
| try (Connection nc = Nats.connect()) { | ||
| try { | ||
| nc.jetStreamManagement().deleteStream(STREAM); | ||
| } | ||
| catch (Exception ignore) {} | ||
|
|
||
| // since the default backoff is {250, 250, 500, 500, 3000, 5000} | ||
| new Thread(() -> { | ||
| try { | ||
| Thread.sleep(1100); | ||
| } | ||
| catch (InterruptedException e) { | ||
| Thread.currentThread().interrupt(); | ||
| } | ||
| try { | ||
| System.out.println("Creating Stream @ " + System.currentTimeMillis()); | ||
| nc.jetStreamManagement().addStream(StreamConfiguration.builder() | ||
| .name(STREAM) | ||
| .subjects(SUBJECT) | ||
| .storageType(StorageType.Memory) | ||
| .build()); | ||
| } | ||
| catch (IOException | JetStreamApiException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| }).start(); | ||
|
|
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| RetryConfig config = RetryConfig.builder().attempts(10).build(); | ||
| long now = System.currentTimeMillis(); | ||
|
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| System.out.println("Publishing @ " + now); | ||
| CompletableFuture<PublishAck> cfpa = Retrier.publishAsync(config, nc.jetStream(), SUBJECT, null); | ||
| PublishAck pa = cfpa.get(30, TimeUnit.SECONDS); | ||
| long done = System.currentTimeMillis(); | ||
|
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| System.out.println("Publish Ack: " + pa.getJv().toJson()); | ||
| System.out.println("Done @ " + done + ", Elapsed: " + (done - now)); | ||
| } | ||
| catch (Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
| } |
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src/examples/java/io/nats/examples/RetrierPublishExample.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| // Copyright 2024 The NATS Authors | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at: | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package io.nats.examples; | ||
|
|
||
| import io.nats.client.Connection; | ||
| import io.nats.client.JetStreamApiException; | ||
| import io.nats.client.Nats; | ||
| import io.nats.client.api.PublishAck; | ||
| import io.nats.client.api.StorageType; | ||
| import io.nats.client.api.StreamConfiguration; | ||
| import io.nats.client.utility.Retrier; | ||
| import io.nats.client.utility.RetryConfig; | ||
|
|
||
| import java.io.IOException; | ||
|
|
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| public class RetrierPublishExample { | ||
|
|
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| public static String STREAM = "retrier"; | ||
| public static String SUBJECT = "retriersub"; | ||
|
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| public static void main(String[] args) throws InterruptedException { | ||
| try (Connection nc = Nats.connect()) { | ||
| try { | ||
| nc.jetStreamManagement().deleteStream(STREAM); | ||
| } | ||
| catch (Exception ignore) {} | ||
|
|
||
| // since the default backoff is {250, 250, 500, 500, 3000, 5000} | ||
| new Thread(() -> { | ||
| try { | ||
| Thread.sleep(1100); | ||
| } | ||
| catch (InterruptedException e) { | ||
| Thread.currentThread().interrupt(); | ||
| } | ||
| try { | ||
| System.out.println("Creating Stream @ " + System.currentTimeMillis()); | ||
| nc.jetStreamManagement().addStream(StreamConfiguration.builder() | ||
| .name(STREAM) | ||
| .subjects(SUBJECT) | ||
| .storageType(StorageType.Memory) | ||
| .build()); | ||
| } | ||
| catch (IOException | JetStreamApiException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| }).start(); | ||
|
|
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| RetryConfig config = RetryConfig.builder().attempts(10).build(); | ||
| long now = System.currentTimeMillis(); | ||
|
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| System.out.println("Publishing @ " + now); | ||
| PublishAck pa = Retrier.publish(config, nc.jetStream(), SUBJECT, null); | ||
| long done = System.currentTimeMillis(); | ||
|
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| System.out.println("Publish Ack: " + pa.getJv().toJson()); | ||
| System.out.println("Done @ " + done + ", Elapsed: " + (done - now)); | ||
| } | ||
| catch (Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
| } |
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