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74 changes: 74 additions & 0 deletions
74
...e/src/main/java/org/elasticsearch/xpack/inference/external/http/sender/TimedListener.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| /* | ||
| * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| * or more contributor license agreements. Licensed under the Elastic License | ||
| * 2.0; you may not use this file except in compliance with the Elastic License | ||
| * 2.0. | ||
| */ | ||
|
|
||
| package org.elasticsearch.xpack.inference.external.http.sender; | ||
|
|
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| import org.elasticsearch.ElasticsearchStatusException; | ||
| import org.elasticsearch.action.ActionListener; | ||
| import org.elasticsearch.action.support.ListenerTimeouts; | ||
| import org.elasticsearch.common.Strings; | ||
| import org.elasticsearch.core.Nullable; | ||
| import org.elasticsearch.core.TimeValue; | ||
| import org.elasticsearch.rest.RestStatus; | ||
| import org.elasticsearch.threadpool.ThreadPool; | ||
|
|
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| import java.util.Objects; | ||
| import java.util.concurrent.atomic.AtomicBoolean; | ||
|
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| import static org.elasticsearch.xpack.inference.InferencePlugin.UTILITY_THREAD_POOL_NAME; | ||
|
|
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| /** | ||
| * Provides a way to set a timeout on the listener. If the time expires, the original listener's | ||
| * {@link ActionListener#onFailure(Exception)} is called with an error indicating there was a timeout. | ||
| * | ||
| * @param <Response> the type of the value that is passed in {@link ActionListener#onResponse(Object)} | ||
| */ | ||
| public class TimedListener<Response> { | ||
|
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| private final ActionListener<Response> listenerWithTimeout; | ||
| private final AtomicBoolean finished = new AtomicBoolean(); | ||
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| public TimedListener(@Nullable TimeValue timeout, ActionListener<Response> listener, ThreadPool threadPool) { | ||
| listenerWithTimeout = getListener(Objects.requireNonNull(listener), timeout, Objects.requireNonNull(threadPool)); | ||
| } | ||
|
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| private ActionListener<Response> getListener( | ||
| ActionListener<Response> origListener, | ||
| @Nullable TimeValue timeout, | ||
| ThreadPool threadPool | ||
| ) { | ||
| ActionListener<Response> notificationListener = ActionListener.wrap(result -> { | ||
| finished.set(true); | ||
| origListener.onResponse(result); | ||
| }, e -> { | ||
| finished.set(true); | ||
| origListener.onFailure(e); | ||
| }); | ||
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| if (timeout == null) { | ||
| return notificationListener; | ||
| } | ||
|
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| return ListenerTimeouts.wrapWithTimeout( | ||
| threadPool, | ||
| timeout, | ||
| threadPool.executor(UTILITY_THREAD_POOL_NAME), | ||
| notificationListener, | ||
| (ignored) -> notificationListener.onFailure( | ||
| new ElasticsearchStatusException(Strings.format("Request timed out after [%s]", timeout), RestStatus.REQUEST_TIMEOUT) | ||
| ) | ||
| ); | ||
| } | ||
|
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| public boolean hasCompleted() { | ||
| return finished.get(); | ||
| } | ||
|
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| public ActionListener<Response> getListener() { | ||
| return listenerWithTimeout; | ||
| } | ||
| } |
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