From 847d56f2b00a31341b622c1afc592ba23301133e Mon Sep 17 00:00:00 2001
From: Dimitris Athanasiou <dimitris@elastic.co>
Date: Fri, 9 Jan 2026 14:40:49 +0200
Subject: [PATCH] Remove unused method
 ElasticInferenceService.translateToChunkedResults (#140442)

Removes unused method `translateToChunkedResults` from `ElasticInferenceService`.
The method stopped being used by #129922.

Also removes an unused logger in `InferencePlugin`.

(cherry picked from commit f0d3d9a31f78a0775d28bd405b0b36301694ccc4)
---
 .../xpack/inference/InferencePlugin.java      |  4 ----
 .../elastic/ElasticInferenceService.java      | 19 -------------------
 2 files changed, 23 deletions(-)

diff --git a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/InferencePlugin.java b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/InferencePlugin.java
index af9c34cea1204..5f168166c236d 100644
--- a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/InferencePlugin.java
+++ b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/InferencePlugin.java
@@ -7,8 +7,6 @@
 
 package org.elasticsearch.xpack.inference;
 
-import org.apache.logging.log4j.LogManager;
-import org.apache.logging.log4j.Logger;
 import org.apache.lucene.util.SetOnce;
 import org.elasticsearch.action.support.MappedActionFilter;
 import org.elasticsearch.client.internal.Client;
@@ -209,8 +207,6 @@ public class InferencePlugin extends Plugin
         ClusterPlugin,
         PersistentTaskPlugin {
 
-    private static final Logger logger = LogManager.getLogger(InferencePlugin.class);
-
     /**
      * When this setting is true the verification check that
      * connects to the external service will not be made at
diff --git a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elastic/ElasticInferenceService.java b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elastic/ElasticInferenceService.java
index 5f4ae46383455..239633034040f 100644
--- a/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elastic/ElasticInferenceService.java
+++ b/x-pack/plugin/inference/src/main/java/org/elasticsearch/xpack/inference/services/elastic/ElasticInferenceService.java
@@ -11,7 +11,6 @@
 import org.elasticsearch.TransportVersion;
 import org.elasticsearch.action.ActionListener;
 import org.elasticsearch.cluster.service.ClusterService;
-import org.elasticsearch.common.Strings;
 import org.elasticsearch.common.ValidationException;
 import org.elasticsearch.core.Nullable;
 import org.elasticsearch.core.TimeValue;
@@ -34,10 +33,6 @@
 import org.elasticsearch.xpack.core.inference.action.InferenceAction;
 import org.elasticsearch.xpack.core.inference.chunking.ChunkingSettingsBuilder;
 import org.elasticsearch.xpack.core.inference.chunking.EmbeddingRequestChunker;
-import org.elasticsearch.xpack.core.inference.results.ChunkedInferenceEmbedding;
-import org.elasticsearch.xpack.core.inference.results.ChunkedInferenceError;
-import org.elasticsearch.xpack.core.inference.results.SparseEmbeddingResults;
-import org.elasticsearch.xpack.core.ml.inference.results.ErrorInferenceResults;
 import org.elasticsearch.xpack.inference.external.http.sender.ChatCompletionInput;
 import org.elasticsearch.xpack.inference.external.http.sender.EmbeddingsInput;
 import org.elasticsearch.xpack.inference.external.http.sender.HttpRequestSender;
@@ -62,8 +57,6 @@
 import java.util.Map;
 import java.util.Set;
 
-import static org.elasticsearch.inference.InferenceStringGroup.toInferenceStringList;
-import static org.elasticsearch.xpack.core.inference.results.ResultUtils.createInvalidChunkedResultException;
 import static org.elasticsearch.xpack.inference.services.ServiceFields.MAX_INPUT_TOKENS;
 import static org.elasticsearch.xpack.inference.services.ServiceFields.MODEL_ID;
 import static org.elasticsearch.xpack.inference.services.ServiceUtils.createInvalidModelException;
@@ -515,18 +508,6 @@ public static SimilarityMeasure defaultDenseTextEmbeddingsSimilarity() {
         return SimilarityMeasure.COSINE;
     }
 
-    private static List<ChunkedInference> translateToChunkedResults(InferenceInputs inputs, InferenceServiceResults inferenceResults) {
-        if (inferenceResults instanceof SparseEmbeddingResults sparseEmbeddingResults) {
-            var inputsAsList = toInferenceStringList(inputs.castTo(EmbeddingsInput.class).getInputs());
-            return ChunkedInferenceEmbedding.listOf(inputsAsList, sparseEmbeddingResults);
-        } else if (inferenceResults instanceof ErrorInferenceResults error) {
-            return List.of(new ChunkedInferenceError(error.getException()));
-        } else {
-            String expectedClass = Strings.format("%s", SparseEmbeddingResults.class.getSimpleName());
-            throw createInvalidChunkedResultException(expectedClass, inferenceResults.getWriteableName());
-        }
-    }
-
     private TraceContext getCurrentTraceInfo() {
         var threadPool = getServiceComponents().threadPool();