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fix(explore): return early, if no entities #196

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fix(explore): return early, if no entities #196

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e53f38a
fix(explore): return early, if no entities
skjindal93 Mar 7, 2024
31f2447
fixed tests
skjindal93 Mar 8, 2024
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4 changes: 4 additions & 0 deletions ...in/java/org/hypertrace/gateway/service/common/converters/QueryAndGatewayDtoConverter.java
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Original file line number Diff line number Diff line change
Expand Up @@ -493,6 +493,10 @@ public static Filter addTimeSpaceAndIdFiltersAndConvertToQueryFilter(
List<String> entityIdAttributes,
org.hypertrace.gateway.service.v1.common.Filter providedFilter) {

if (entityIds.isEmpty()) {
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return Filter.getDefaultInstance();
}

Filter.Builder compositeFilter = Filter.newBuilder().setOperator(Operator.AND);
Filter convertedProvidedFilter =
isNonDefaultFilter(providedFilter)
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17 changes: 14 additions & 3 deletions ...way-service-impl/src/main/java/org/hypertrace/gateway/service/explore/RequestHandler.java
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Expand Up @@ -88,16 +88,21 @@ public RequestHandler(
@Override
public ExploreResponse.Builder handleRequest(
ExploreRequestContext requestContext, ExploreRequest request) {
QueryRequest queryRequest =
Optional<QueryRequest> maybeQueryRequest =
buildQueryRequest(requestContext, request, attributeMetadataProvider);

if (maybeQueryRequest.isEmpty()) {
return ExploreResponse.newBuilder();
}

QueryRequest queryRequest = maybeQueryRequest.get();
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@aaron-steinfeld aaron-steinfeld Mar 8, 2024

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nit - prefer .orElseThrow over .get (or move code around to avoid the direct access)

Iterator<ResultSetChunk> resultSetChunkIterator = executeQuery(requestContext, queryRequest);

return handleQueryServiceResponse(
request, requestContext, resultSetChunkIterator, requestContext, attributeMetadataProvider);
}

QueryRequest buildQueryRequest(
Optional<QueryRequest> buildQueryRequest(
ExploreRequestContext requestContext,
ExploreRequest request,
AttributeMetadataProvider attributeMetadataProvider) {
Expand All @@ -118,7 +123,13 @@ QueryRequest buildQueryRequest(
.orElse(request.getFilter());
}

if (entityIds.isEmpty()) {
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return Optional.empty();
}

QueryRequest.Builder builder = QueryRequest.newBuilder();


// 1. Add selections. All selections should either be only column or only function, never both.
// The validator should catch this.
List<Expression> aggregatedSelections =
Expand Down Expand Up @@ -160,7 +171,7 @@ QueryRequest buildQueryRequest(
// 4. Add order by along with setting limit, offset
addSortLimitAndOffset(request, requestContext, builder);

return builder.build();
return Optional.of(builder.build());
}

// This is to get all the entity Ids for the EDS source filter.
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