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[ML] Make Inference Services pluggable (elastic#99886)
Creates an InferenceServicePlugins interface for inference services to implement and adds a test implementation to mock an inference service.
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17 changes: 9 additions & 8 deletions
17
...l/inference/results/InferenceResults.java → ...ticsearch/inference/InferenceResults.java
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69 changes: 69 additions & 0 deletions
69
server/src/main/java/org/elasticsearch/inference/InferenceServiceRegistry.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,69 @@ | ||
| /* | ||
| * 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 and the Server Side Public License, v 1; you may not use this file except | ||
| * in compliance with, at your election, the Elastic License 2.0 or the Server | ||
| * Side Public License, v 1. | ||
| */ | ||
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| package org.elasticsearch.inference; | ||
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| import org.elasticsearch.common.component.AbstractLifecycleComponent; | ||
| import org.elasticsearch.common.io.stream.NamedWriteableRegistry; | ||
| import org.elasticsearch.plugins.InferenceServicePlugin; | ||
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| import java.io.IOException; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.Optional; | ||
| import java.util.function.Function; | ||
| import java.util.stream.Collectors; | ||
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| public class InferenceServiceRegistry extends AbstractLifecycleComponent { | ||
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| private final Map<String, InferenceService> services; | ||
| private final List<NamedWriteableRegistry.Entry> namedWriteables = new ArrayList<>(); | ||
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| public InferenceServiceRegistry( | ||
| List<InferenceServicePlugin> inferenceServicePlugins, | ||
| InferenceServicePlugin.InferenceServiceFactoryContext factoryContext | ||
| ) { | ||
| // TODO check names are unique | ||
| services = inferenceServicePlugins.stream() | ||
| .flatMap(r -> r.getInferenceServiceFactories().stream()) | ||
| .map(factory -> factory.create(factoryContext)) | ||
| .collect(Collectors.toMap(InferenceService::name, Function.identity())); | ||
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| for (var plugin : inferenceServicePlugins) { | ||
| namedWriteables.addAll(plugin.getInferenceServiceNamedWriteables()); | ||
| } | ||
| } | ||
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| public Map<String, InferenceService> getServices() { | ||
| return services; | ||
| } | ||
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| public Optional<InferenceService> getService(String serviceName) { | ||
| return Optional.ofNullable(services.get(serviceName)); | ||
| } | ||
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| public List<NamedWriteableRegistry.Entry> getNamedWriteables() { | ||
| return namedWriteables; | ||
| } | ||
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| @Override | ||
| protected void doStart() { | ||
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| } | ||
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| @Override | ||
| protected void doStop() { | ||
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| } | ||
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| @Override | ||
| protected void doClose() throws IOException { | ||
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| } | ||
| } |
7 changes: 4 additions & 3 deletions
7
.../elasticsearch/xpack/inference/Model.java → ...va/org/elasticsearch/inference/Model.java
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7 changes: 4 additions & 3 deletions
7
...arch/xpack/inference/ServiceSettings.java → ...sticsearch/inference/ServiceSettings.java
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7 changes: 4 additions & 3 deletions
7
...csearch/xpack/inference/TaskSettings.java → ...elasticsearch/inference/TaskSettings.java
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43 changes: 43 additions & 0 deletions
43
server/src/main/java/org/elasticsearch/plugins/InferenceServicePlugin.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| /* | ||
| * 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 and the Server Side Public License, v 1; you may not use this file except | ||
| * in compliance with, at your election, the Elastic License 2.0 or the Server | ||
| * Side Public License, v 1. | ||
| */ | ||
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| package org.elasticsearch.plugins; | ||
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| import org.elasticsearch.client.internal.Client; | ||
| import org.elasticsearch.common.io.stream.NamedWriteableRegistry; | ||
| import org.elasticsearch.inference.InferenceService; | ||
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| import java.util.List; | ||
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| /** | ||
| * InferenceServicePlugins implement an inference service | ||
| */ | ||
| public interface InferenceServicePlugin { | ||
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| List<Factory> getInferenceServiceFactories(); | ||
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| record InferenceServiceFactoryContext(Client client) {} | ||
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| interface Factory { | ||
| /** | ||
| * InferenceServices are created from the factory context | ||
| */ | ||
| InferenceService create(InferenceServiceFactoryContext context); | ||
| } | ||
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| /** | ||
| * The named writables defined and used by each of the implemented | ||
| * InferenceServices. Each service should define named writables for | ||
| * - {@link org.elasticsearch.inference.TaskSettings} | ||
| * - {@link org.elasticsearch.inference.ServiceSettings} | ||
| * And optionally for {@link org.elasticsearch.inference.InferenceResults} | ||
| * if the service uses a new type of result. | ||
| * @return All named writables defined by the services | ||
| */ | ||
| List<NamedWriteableRegistry.Entry> getInferenceServiceNamedWriteables(); | ||
| } |
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