Embedding must be initialized with empty values.

Author: iroqueta

java/src/main/java/com/genexus/db/GXEmbedding.java

@@ -10,6 +10,7 @@
 
 import java.util.ArrayList;
 import java.util.Arrays;
+import java.util.Collections;
 import java.util.List;
 import java.util.stream.Collectors;
 
@@ -26,7 +27,7 @@ public GXEmbedding() {
 	public GXEmbedding(String model, int dimensions) {
 		this.model = model;
 		this.dimensions = dimensions;
-		embedding = new ArrayList<>(dimensions);
+		embedding = new ArrayList<>(Collections.nCopies(dimensions, 0.0f));
 	}
 
 	public GXEmbedding(Float[] embedding, String model, int dimensions) {
@@ -48,7 +49,8 @@ public int getDimensions() {
 	}
 
 	public void setEmbedding(List<Float> embedding) {
-		this.embedding = embedding;
+		if (!embedding.isEmpty())
+			this.embedding = embedding;
 	}
 
 	public Float[] getFloatArray() {
@@ -67,6 +69,8 @@ public static GXEmbedding generateEmbedding(GXEmbedding embeddingInfo, String te
 	}
 
 	public static List<Float> getEmbedding(String model, int dimensions, String input) {
+		if (input.isEmpty())
+			return new ArrayList<>();
 		ArrayList<String> inputList = new ArrayList<>();
 		inputList.add(input);
 		return getEmbedding(model, dimensions, inputList);

java/src/test/java/com/genexus/embedding/GXEmbeddingTest.java

@@ -1,6 +1,8 @@
 package com.genexus.embedding;
 
 import com.genexus.Application;
+import com.genexus.GXBaseCollection;
+import com.genexus.SdtMessages_Message;
 import com.genexus.db.GXEmbedding;
 import com.genexus.sampleapp.GXcfg;
 import com.genexus.specific.java.Connect;
@@ -23,5 +25,11 @@ public void EmbeddingTest(){
 			.collect(Collectors.joining(","));
 		System.out.println("Embedding: " + result);
 		Assert.assertNotNull(embedding);
+
+		GXBaseCollection<SdtMessages_Message> AV8Messages = new GXBaseCollection<>();
+		GXEmbedding A7ProductEmbedding = new GXEmbedding("openai/text-embedding-3-small",512) ;
+		GXEmbedding AV9ProductEmbedding = GXEmbedding.generateEmbedding(A7ProductEmbedding, "", AV8Messages) ;
+		result = AV9ProductEmbedding.toString();
+		System.out.println("Empty Embedding: " + result);
 	}
 }