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index-to-es.go
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index-to-es.go
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package main
import (
"bytes"
"context"
"encoding/json"
"fmt"
"log"
"time"
"github.com/elastic/go-elasticsearch/v8"
"github.com/elastic/go-elasticsearch/v8/esutil"
)
type Caption struct {
Url string `json:"url"`
Index int `json:"index"`
Text string `json:"text"`
Context string `json:"context"`
TimestampFrom time.Duration `json:"timestamp_from"`
TimestampTo time.Duration `json:"timestamp_to"`
ClipLength time.Duration `json:"clip_length"`
}
func SearchCaptions(search string) ([]Caption, error) {
var r map[string]interface{}
cfg := elasticsearch.Config{
Addresses: []string{"http://localhost:9200"}, // Update with your Elasticsearch host
}
client, err := elasticsearch.NewClient(cfg)
if err != nil {
return nil, fmt.Errorf("failed to create Elasticsearch client: %v", err)
}
indexName := "captions"
var buf bytes.Buffer
query := map[string]interface{}{
"query": map[string]interface{}{
"match": map[string]interface{}{
"context": search,
},
},
}
if err := json.NewEncoder(&buf).Encode(query); err != nil {
log.Fatalf("Error encoding query: %s", err)
}
// Perform the search request.
res, err := client.Search(
client.Search.WithContext(context.Background()),
client.Search.WithIndex(indexName),
client.Search.WithBody(&buf),
client.Search.WithTrackTotalHits(true),
client.Search.WithPretty(),
)
if err != nil {
log.Fatalf("Error getting response: %s", err)
}
defer res.Body.Close()
if err := json.NewDecoder(res.Body).Decode(&r); err != nil {
return nil, err
}
hits, ok := r["hits"].(map[string]interface{})["hits"].([]interface{})
if !ok {
return nil, fmt.Errorf("invalid search result format")
}
captions := make([]Caption, 0)
for _, hit := range hits {
source := hit.(map[string]interface{})["_source"]
captionBytes, err := json.Marshal(source)
if err != nil {
log.Printf("Failed to marshal caption source: %s", err)
continue
}
var caption Caption
if err := json.Unmarshal(captionBytes, &caption); err != nil {
log.Printf("Failed to unmarshal caption: %s", err)
continue
}
captions = append(captions, caption)
}
return captions, nil
}
func IndexCaptions(captions []Caption) error {
// Create Elasticsearch client
cfg := elasticsearch.Config{
Addresses: []string{"http://localhost:9200"}, // Update with your Elasticsearch host
}
client, err := elasticsearch.NewClient(cfg)
if err != nil {
return fmt.Errorf("failed to create Elasticsearch client: %v", err)
}
indexName := "captions"
bi, err := esutil.NewBulkIndexer(esutil.BulkIndexerConfig{
Index: indexName,
Client: client,
})
// Prepare the bulk update request
for _, caption := range captions {
// Serialize the caption struct
captionBytes, err := json.Marshal(caption)
if err != nil {
return fmt.Errorf("failed to serialize caption struct: %v", err)
}
addErr := bi.Add(
context.Background(),
esutil.BulkIndexerItem{
Action: "index",
Body: bytes.NewReader(captionBytes),
},
)
if addErr != nil {
log.Fatalf("Unexpected indexing err: %s", err)
}
}
if err := bi.Close(context.Background()); err != nil {
log.Fatalf("Unexpected error: %s", err)
}
log.Println("Captions indexed successfully.")
return nil
}