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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package traverser
import (
"context"
"fmt"
"github.com/pkg/errors"
"github.com/weaviate/weaviate/entities/aggregation"
enterrors "github.com/weaviate/weaviate/entities/errors"
"github.com/weaviate/weaviate/entities/filters"
"github.com/weaviate/weaviate/entities/models"
)
// Aggregate resolves meta queries
func (t *Traverser) Aggregate(ctx context.Context, principal *models.Principal,
params *aggregation.Params,
) (interface{}, error) {
t.metrics.QueriesAggregateInc(params.ClassName.String())
defer t.metrics.QueriesAggregateDec(params.ClassName.String())
err := t.authorizer.Authorize(principal, "get", "traversal/*")
if err != nil {
return nil, err
}
unlock, err := t.locks.LockConnector()
if err != nil {
return nil, enterrors.NewErrLockConnector(err)
}
defer unlock()
inspector := newTypeInspector(t.schemaGetter)
if params.NearVector != nil || params.NearObject != nil || len(params.ModuleParams) > 0 {
className := params.ClassName.String()
err = t.nearParamsVector.validateNearParams(params.NearVector,
params.NearObject, params.ModuleParams, className)
if err != nil {
return nil, err
}
searchVector, err := t.nearParamsVector.vectorFromParams(ctx,
params.NearVector, params.NearObject, params.ModuleParams, className, params.Tenant)
if err != nil {
return nil, err
}
params.SearchVector = searchVector
certainty := t.nearParamsVector.extractCertaintyFromParams(params.NearVector,
params.NearObject, params.ModuleParams)
if certainty == 0 && params.ObjectLimit == nil {
return nil, fmt.Errorf("must provide certainty or objectLimit with vector search")
}
params.Certainty = certainty
}
if params.Hybrid != nil && params.Hybrid.Vector == nil && params.Hybrid.Query != "" {
vec, err := t.nearParamsVector.modulesProvider.
VectorFromInput(ctx, params.ClassName.String(), params.Hybrid.Query)
if err != nil {
return nil, err
}
params.Hybrid.Vector = vec
}
if params.Filters != nil {
if err := filters.ValidateFilters(t.schemaGetter.GetSchemaSkipAuth(), params.Filters); err != nil {
return nil, errors.Wrap(err, "invalid 'where' filter")
}
}
res, err := t.vectorSearcher.Aggregate(ctx, *params)
if err != nil || res == nil {
return nil, err
}
return inspector.WithTypes(res, *params)
}
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