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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,156 @@ | ||
| // | ||
| // Copyright (C) 2019-2024 vdaas.org vald team <vald@vdaas.org> | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // You may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // https://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
|
|
||
| // Package usearch provides implementation of Go API for https://github.com/unum-cloud/usearch | ||
| package usearch | ||
|
|
||
| import ( | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/kpango/fastime" | ||
| core "github.com/unum-cloud/usearch/golang" | ||
| "github.com/vdaas/vald/internal/core/algorithm" | ||
| "github.com/vdaas/vald/internal/errors" | ||
| ) | ||
|
|
||
| // Option represents the functional option for usearch. | ||
| type Option func(*usearch) error | ||
|
|
||
| var defaultOptions = []Option{ | ||
| WithIndexPath("/tmp/usearch-" + strconv.FormatInt(fastime.UnixNanoNow(), 10)), | ||
| WithQuantizationType("F32"), | ||
| WithMetricType("cosine"), | ||
| WithDimension(64), | ||
| WithConnectivity(0), | ||
| WithExpansionAdd(0), | ||
| WithExpansionSearch(0), | ||
| WithMulti(false), | ||
| } | ||
|
|
||
| // WithIndexPath represents the option to set the index path for usearch. | ||
| func WithIndexPath(path string) Option { | ||
| return func(u *usearch) error { | ||
| if len(path) == 0 { | ||
| return errors.NewErrIgnoredOption("indexPath") | ||
| } | ||
| u.idxPath = path | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| // WithQuantizationType represents the option to set the quantizationType for usearch. | ||
| func WithQuantizationType(quantizationType string) Option { | ||
| return func(u *usearch) error { | ||
| quantizationTypeMap := map[string]core.Quantization{ | ||
| "BF16": core.BF16, | ||
| "F16": core.F16, | ||
| "F32": core.F32, | ||
| "F64": core.F64, | ||
| "I8": core.I8, | ||
| "B1": core.B1, | ||
| } | ||
| if quantizationType, ok := quantizationTypeMap[quantizationType]; ok { | ||
| u.quantizationType = quantizationType | ||
| } else { | ||
| err := errors.NewUsearchError("unsupported QuantizationType") | ||
| return errors.NewErrCriticalOption("QuantizationType", quantizationType, err) | ||
| } | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| // WithMetricType represents the option to set the metricType for usearch. | ||
| func WithMetricType(metricType string) Option { | ||
| return func(u *usearch) error { | ||
| metricTypeMap := map[string]core.Metric{ | ||
| "l2sq": core.L2sq, | ||
| "ip": core.InnerProduct, | ||
| "cosine": core.Cosine, | ||
| "haversine": core.Haversine, | ||
| "divergence": core.Divergence, | ||
| "pearson": core.Pearson, | ||
| "hamming": core.Hamming, | ||
| "tanimoto": core.Tanimoto, | ||
| "sorensen": core.Sorensen, | ||
| } | ||
| normalizedMetricType := strings.NewReplacer("-", "", "_", "", " ", "").Replace(strings.ToLower(metricType)) | ||
| if metricType, ok := metricTypeMap[normalizedMetricType]; ok { | ||
| u.metricType = metricType | ||
| } else { | ||
| err := errors.NewUsearchError("unsupported MetricType") | ||
| return errors.NewErrCriticalOption("MetricType", metricType, err) | ||
| } | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| // WithDimension represents the option to set the dimension for usearch. | ||
| func WithDimension(dim int) Option { | ||
| return func(u *usearch) error { | ||
| if dim > algorithm.MaximumVectorDimensionSize || dim < algorithm.MinimumVectorDimensionSize { | ||
| err := errors.ErrInvalidDimensionSize(dim, algorithm.MaximumVectorDimensionSize) | ||
| return errors.NewErrCriticalOption("dimension", dim, err) | ||
| } | ||
|
|
||
| u.dimension = uint(dim) | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| // WithConnectivity represents the option to set the connectivity for usearch. | ||
| func WithConnectivity(connectivity int) Option { | ||
| return func(u *usearch) error { | ||
| if connectivity < 0 { | ||
| return errors.NewErrInvalidOption("Connectivity", connectivity) | ||
| } | ||
|
|
||
| u.connectivity = uint(connectivity) | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| // WithExpansionAdd represents the option to set the expansion add for usearch. | ||
| func WithExpansionAdd(expansionAdd int) Option { | ||
| return func(u *usearch) error { | ||
| if expansionAdd < 0 { | ||
| return errors.NewErrInvalidOption("Expansion Add", expansionAdd) | ||
| } | ||
|
|
||
| u.expansionAdd = uint(expansionAdd) | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| // WithExpansionSearch represents the option to set the expansion search for usearch. | ||
| func WithExpansionSearch(expansionSearch int) Option { | ||
| return func(u *usearch) error { | ||
| if expansionSearch < 0 { | ||
| return errors.NewErrInvalidOption("Expansion Search", expansionSearch) | ||
| } | ||
|
|
||
| u.expansionSearch = uint(expansionSearch) | ||
| return nil | ||
| } | ||
| } | ||
|
|
||
| // WithMulti represents the option to set the multi for usearch. | ||
| func WithMulti(multi bool) Option { | ||
| return func(u *usearch) error { | ||
| u.multi = multi | ||
| return nil | ||
| } | ||
| } |
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