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feather.go
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feather.go
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package chalk
import (
"encoding/json"
"fmt"
"github.com/apache/arrow/go/v16/arrow"
"github.com/chalk-ai/chalk-go/internal"
)
func (r OnlineQueryBulkResult) Release() {
r.ScalarsTable.Release()
for _, table := range r.GroupsTables {
table.Release()
}
}
type SerializationOptions struct {
ClientConfigBranchId string
}
func (p OnlineQueryParamsComplete) ToBytes(options ...*SerializationOptions) ([]byte, error) {
branchId := p.underlying.BranchId
if len(options) > 1 {
return nil, fmt.Errorf("expected 1 SerializationOptions, got %d", len(options))
} else if len(options) == 1 {
if branchId == nil || *branchId == "" && options[0].ClientConfigBranchId != "" {
branchId = &options[0].ClientConfigBranchId
}
}
return internal.CreateOnlineQueryBulkBody(p.underlying.inputs, internal.FeatherRequestHeader{
Outputs: p.underlying.outputs,
Explain: false,
BranchId: branchId,
})
}
func (r *OnlineQueryBulkResponse) Unmarshal(body []byte) error {
res, err := internal.ChalkUnmarshal(body)
if err != nil {
return fmt.Errorf("failed to unmarshal bytes: %w", err)
}
resultMap := map[QueryName]onlineQueryResultFeather{}
queryNameToBytesInBytes, ok := res["query_results_bytes"]
if !ok {
return fmt.Errorf("malformed bulk online query response - missing 'query_results_bytes' attribute")
}
queryNameToBytesInBytesCast, ok := queryNameToBytesInBytes.([]byte)
if !ok {
return fmt.Errorf("failed to convert 'query_results_bytes' value to a byte array")
}
queryNameToBytesInMap, err := internal.ChalkUnmarshal(queryNameToBytesInBytesCast)
for queryName, queryResultBytes := range queryNameToBytesInMap {
queryResultBytesCast, ok := queryResultBytes.([]byte)
if !ok {
return fmt.Errorf("failed to cast bytes to byte array for query name: %s", queryName)
}
resultFeather := onlineQueryResultFeather{}
err := resultFeather.Unmarshal(queryResultBytesCast)
if err != nil {
return fmt.Errorf("failed to unmarshal result bytes for query name '%s': %w", queryName, err)
}
resultMap[queryName] = resultFeather
}
r.QueryResults = resultMap
return nil
}
func (r *onlineQueryResultFeather) Unmarshal(body []byte) error {
res, err := internal.ChalkUnmarshal(body)
if err != nil {
return fmt.Errorf("failed to unmarshal bytes: %w", err)
}
hasData, ok := res["has_data"]
if !ok {
return fmt.Errorf("missing attribute 'has_data'")
}
hasDataBool, ok := hasData.(bool)
if !ok {
return fmt.Errorf("cannot cast attribute 'has_data' to bool")
}
var table arrow.Table
var groupsTables map[string]arrow.Table
if hasDataBool {
scalarDataBytes, ok := res["scalar_data"]
if !ok {
return fmt.Errorf("missing attribute 'scalar_data'")
}
scalarDataBytesCast, ok := scalarDataBytes.([]byte)
if !ok {
return fmt.Errorf("failed to cast scalar data bytes to bytes array")
}
table, err = internal.ConvertBytesToTable(scalarDataBytesCast)
if err != nil {
return fmt.Errorf("failed to convert scalar data bytes to an Arrow Table: %w", err)
}
groupsDataBytes, ok := res["groups_data"]
if !ok {
return fmt.Errorf("missing attribute 'groups_data'")
}
groupsDataBytesCast, ok := groupsDataBytes.([]byte)
if !ok {
return fmt.Errorf("failed to cast groups data bytes to bytes array")
}
groupsDataMap, err := internal.ChalkUnmarshal(groupsDataBytesCast)
if err != nil {
return fmt.Errorf("failed to unmarshal 'groups_data' value: %w", err)
}
groupsTables = map[string]arrow.Table{}
for k, v := range groupsDataMap {
vBytes, ok := v.([]byte)
if !ok {
return fmt.Errorf("failed to cast data for has-many feature '%s': %w", k, err)
}
vTable, err := internal.ConvertBytesToTable(vBytes)
if err != nil {
return fmt.Errorf("failed to convert bytes for has-many feature '%s' to Arrow table batch: %w", k, err)
}
groupsTables[k] = vTable
}
}
r.HasData = hasDataBool
r.ScalarData = table
r.GroupsData = groupsTables
errorsAny, ok := res["errors"]
if !ok {
return fmt.Errorf("missing attribute 'errors'")
}
var errorsAnyArr []any
if errorsAny == nil {
errorsAnyArr = []any{}
} else {
errorsAnyArr, ok = errorsAny.([]any)
if !ok {
return fmt.Errorf("cannot cast attribute 'errors' to an array")
}
}
if !ok {
return fmt.Errorf("cannot cast attribute 'errors' to an array")
}
errorsStrArr := make([]string, len(errorsAnyArr))
for i, errorAny := range errorsAnyArr {
errorStr, ok := errorAny.(string)
if !ok {
return fmt.Errorf("cannot cast error to string")
}
errorsStrArr[i] = errorStr
}
errorsArr := make([]ServerError, len(errorsStrArr))
for i, errorStr := range errorsStrArr {
errorsArr[i] = ServerError{}
err = json.Unmarshal([]byte(errorStr), &errorsArr[i])
if err != nil {
return fmt.Errorf("failed to unmarshal error string: %w", err)
}
}
r.Errors = errorsArr
metaString, ok := res["meta"]
if !ok {
return fmt.Errorf("missing attribute 'meta'")
}
if metaString == nil {
} else {
metaStringCast, ok := metaString.(string)
if !ok {
return fmt.Errorf("'meta' attribute cannot be casted to string")
}
meta := QueryMeta{}
err = json.Unmarshal([]byte(metaStringCast), &meta)
if err != nil {
return fmt.Errorf("failed to unmarshal query 'meta' attribute: %w", err)
}
r.Meta = &meta
}
return nil
}