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bulkindexer.go
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bulkindexer.go
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// Copyright 2023 Cisco Systems, Inc. and its affiliates
//
// 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
//
// http://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.
//
// SPDX-License-Identifier: Apache-2.0
package opensearch
import (
"context"
"encoding/json"
"github.com/cisco-open/go-lanai/pkg/utils/order"
"github.com/opensearch-project/opensearch-go"
"github.com/opensearch-project/opensearch-go/opensearchutil"
"strconv"
"strings"
)
// BulkAction is intended to be used as an enum type for bulk actions
//
// [REF]: https://opensearch.org/docs/1.2/opensearch/rest-api/document-apis/bulk/#request-body
type BulkAction string
const (
BulkActionIndex BulkAction = "index" // Will add in a document and will override any duplicate (based on ID)
BulkActionCreate BulkAction = "create" // Will add a document if it doesn't exist or return an error
BulkActionUpdate BulkAction = "update" // Will update an existing document if it exists or return an error
BulkActionDelete BulkAction = "delete" // Will delete a document if it exists or return a `not_found`
)
func (c *RepoImpl[T]) BulkIndexer(ctx context.Context, action BulkAction, bulkItems *[]T, o ...Option[opensearchutil.BulkIndexerConfig]) (opensearchutil.BulkIndexerStats, error) {
arrBytes := make([][]byte, len(*bulkItems))
for i, item := range *bulkItems {
buffer, err := json.Marshal(item)
if err != nil {
return opensearchutil.BulkIndexerStats{}, err
}
arrBytes[i] = buffer
}
bi, err := c.client.BulkIndexer(ctx, action, arrBytes, o...)
if err != nil {
return opensearchutil.BulkIndexerStats{}, err
}
return bi.Stats(), nil
}
func (c *OpenClientImpl) BulkIndexer(ctx context.Context, action BulkAction, documents [][]byte, o ...Option[opensearchutil.BulkIndexerConfig]) (opensearchutil.BulkIndexer, error) {
options := make([]func(config *opensearchutil.BulkIndexerConfig), len(o))
for i, v := range o {
options[i] = v
}
//nolint:makezero
options = append(options, WithClient(c.client))
order.SortStable(c.beforeHook, order.OrderedFirstCompare)
for _, hook := range c.beforeHook {
ctx = hook.Before(ctx, BeforeContext{cmd: CmdBulk, Options: &options})
}
cfg := MakeConfig(options...)
bi, err := opensearchutil.NewBulkIndexer(*cfg)
if err != nil {
return nil, err
}
for _, item := range documents {
err = bi.Add(ctx, opensearchutil.BulkIndexerItem{
Action: string(action),
Body: strings.NewReader(string(item)),
})
if err != nil {
return nil, err
}
}
for _, hook := range c.afterHook {
ctx = hook.After(ctx, AfterContext{cmd: CmdBulk, Options: &options, Err: &err})
}
if err = bi.Close(ctx); err != nil {
return bi, err
}
return bi, nil
}
func MakeConfig(options ...func(*opensearchutil.BulkIndexerConfig)) *opensearchutil.BulkIndexerConfig {
cfg := &opensearchutil.BulkIndexerConfig{}
for _, o := range options {
o(cfg)
}
return cfg
}
func WithClient(c *opensearch.Client) func(*opensearchutil.BulkIndexerConfig) {
return func(cfg *opensearchutil.BulkIndexerConfig) {
cfg.Client = c
}
}
func (e bulkCfgExt) WithWorkers(n int) func(*opensearchutil.BulkIndexerConfig) {
return func(cfg *opensearchutil.BulkIndexerConfig) {
cfg.NumWorkers = n
}
}
func (e bulkCfgExt) WithRefresh(b bool) func(*opensearchutil.BulkIndexerConfig) {
return func(cfg *opensearchutil.BulkIndexerConfig) {
cfg.Refresh = strconv.FormatBool(b)
}
}
func (e bulkCfgExt) WithIndex(i string) func(*opensearchutil.BulkIndexerConfig) {
return func(cfg *opensearchutil.BulkIndexerConfig) {
cfg.Index = i
}
}
type bulkCfgExt struct {
opensearchutil.BulkIndexerConfig
}
var BulkIndexer = bulkCfgExt{}