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Support pre-parsed Filter.Expression in getFilterExpression #3068

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Support pre-parsed Filter.Expression in getFilterExpression #3068

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47df5a7
Support pre-parsed Filter.Expression in getFilterExpression
solnone May 9, 2025
cc8a7a7
Merge branch 'spring-projects:main' into main
solnone May 14, 2025
172ee58
Merge branch 'main' into main
solnone May 17, 2025
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9 changes: 6 additions & 3 deletions ...in/java/org/springframework/ai/chat/client/advisor/vectorstore/QuestionAnswerAdvisor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -155,11 +155,14 @@ public ChatClientResponse after(ChatClientResponse chatClientResponse, AdvisorCh

@Nullable
protected Filter.Expression doGetFilterExpression(Map<String, Object> context) {
if (!context.containsKey(FILTER_EXPRESSION)
|| !StringUtils.hasText(context.get(FILTER_EXPRESSION).toString())) {
var filterExpression = context.get(FILTER_EXPRESSION);
if (filterExpression instanceof Filter.Expression) {
return (Filter.Expression) filterExpression;
}
if (!context.containsKey(FILTER_EXPRESSION) || !StringUtils.hasText(filterExpression.toString())) {
return this.searchRequest.getFilterExpression();
}
return new FilterExpressionTextParser().parse(context.get(FILTER_EXPRESSION).toString());
return new FilterExpressionTextParser().parse(filterExpression.toString());
}

@Override
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26 changes: 26 additions & 0 deletions ...ngframework/ai/integration/tests/rag/retrieval/search/VectorStoreDocumentRetrieverIT.java
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@
import org.springframework.ai.rag.retrieval.search.DocumentRetriever;
import org.springframework.ai.rag.retrieval.search.VectorStoreDocumentRetriever;
import org.springframework.ai.vectorstore.filter.Filter;
import org.springframework.ai.vectorstore.filter.FilterExpressionBuilder;
import org.springframework.ai.vectorstore.pgvector.PgVectorStore;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
Expand Down Expand Up @@ -134,4 +135,29 @@ void withRequestFilter() {
assertThat(retrievedDocuments).anyMatch(document -> document.getId().equals(documents.get("4").getId()));
}

@Test
void withRequestFilterExpression() {
FilterExpressionBuilder b = new FilterExpressionBuilder();
DocumentRetriever documentRetriever = VectorStoreDocumentRetriever.builder()
.vectorStore(this.pgVectorStore)
.similarityThreshold(0.50)
.topK(3)
.build();

Query query = Query.builder()
.text("Who is Anacletus?")
.context(Map.of(VectorStoreDocumentRetriever.FILTER_EXPRESSION,
b.eq("location", "Whispering Woods").build()))
.build();
List<Document> retrievedDocuments = documentRetriever.retrieve(query);

assertThat(retrievedDocuments).hasSize(2);
assertThat(retrievedDocuments).anyMatch(document -> document.getId().equals(documents.get("1").getId()));
assertThat(retrievedDocuments).anyMatch(document -> document.getId().equals(documents.get("2").getId()));

// No request filter expression applied, so full access to all documents.
retrievedDocuments = documentRetriever.retrieve(new Query("Who is Birba?"));
assertThat(retrievedDocuments).anyMatch(document -> document.getId().equals(documents.get("4").getId()));
}

}