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// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package elasticsearch
import (
"context"
"fmt"
"strconv"
"code.gitea.io/gitea/modules/graceful"
indexer_internal "code.gitea.io/gitea/modules/indexer/internal"
inner_elasticsearch "code.gitea.io/gitea/modules/indexer/internal/elasticsearch"
"code.gitea.io/gitea/modules/indexer/issues/internal"
"github.com/olivere/elastic/v7"
)
const (
issueIndexerLatestVersion = 0
)
var _ internal.Indexer = &Indexer{}
// Indexer implements Indexer interface
type Indexer struct {
inner *inner_elasticsearch.Indexer
indexer_internal.Indexer // do not composite inner_elasticsearch.Indexer directly to avoid exposing too much
}
// NewIndexer creates a new elasticsearch indexer
func NewIndexer(url, indexerName string) *Indexer {
inner := inner_elasticsearch.NewIndexer(url, indexerName, issueIndexerLatestVersion, defaultMapping)
indexer := &Indexer{
inner: inner,
Indexer: inner,
}
return indexer
}
const (
defaultMapping = `{
"mappings": {
"properties": {
"id": {
"type": "integer",
"index": true
},
"repo_id": {
"type": "integer",
"index": true
},
"title": {
"type": "text",
"index": true
},
"content": {
"type": "text",
"index": true
},
"comments": {
"type" : "text",
"index": true
}
}
}
}`
)
// Index will save the index data
func (b *Indexer) Index(ctx context.Context, issues []*internal.IndexerData) error {
if len(issues) == 0 {
return nil
} else if len(issues) == 1 {
issue := issues[0]
_, err := b.inner.Client.Index().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", issue.ID)).
BodyJson(map[string]interface{}{
"id": issue.ID,
"repo_id": issue.RepoID,
"title": issue.Title,
"content": issue.Content,
"comments": issue.Comments,
}).
Do(ctx)
return err
}
reqs := make([]elastic.BulkableRequest, 0)
for _, issue := range issues {
reqs = append(reqs,
elastic.NewBulkIndexRequest().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", issue.ID)).
Doc(map[string]interface{}{
"id": issue.ID,
"repo_id": issue.RepoID,
"title": issue.Title,
"content": issue.Content,
"comments": issue.Comments,
}),
)
}
_, err := b.inner.Client.Bulk().
Index(b.inner.VersionedIndexName()).
Add(reqs...).
Do(graceful.GetManager().HammerContext())
return err
}
// Delete deletes indexes by ids
func (b *Indexer) Delete(ctx context.Context, ids ...int64) error {
if len(ids) == 0 {
return nil
} else if len(ids) == 1 {
_, err := b.inner.Client.Delete().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", ids[0])).
Do(ctx)
return err
}
reqs := make([]elastic.BulkableRequest, 0)
for _, id := range ids {
reqs = append(reqs,
elastic.NewBulkDeleteRequest().
Index(b.inner.VersionedIndexName()).
Id(fmt.Sprintf("%d", id)),
)
}
_, err := b.inner.Client.Bulk().
Index(b.inner.VersionedIndexName()).
Add(reqs...).
Do(graceful.GetManager().HammerContext())
return err
}
// Search searches for issues by given conditions.
// Returns the matching issue IDs
func (b *Indexer) Search(ctx context.Context, keyword string, repoIDs []int64, limit, start int) (*internal.SearchResult, error) {
kwQuery := elastic.NewMultiMatchQuery(keyword, "title", "content", "comments")
query := elastic.NewBoolQuery()
query = query.Must(kwQuery)
if len(repoIDs) > 0 {
repoStrs := make([]interface{}, 0, len(repoIDs))
for _, repoID := range repoIDs {
repoStrs = append(repoStrs, repoID)
}
repoQuery := elastic.NewTermsQuery("repo_id", repoStrs...)
query = query.Must(repoQuery)
}
searchResult, err := b.inner.Client.Search().
Index(b.inner.VersionedIndexName()).
Query(query).
Sort("_score", false).
From(start).Size(limit).
Do(ctx)
if err != nil {
return nil, err
}
hits := make([]internal.Match, 0, limit)
for _, hit := range searchResult.Hits.Hits {
id, _ := strconv.ParseInt(hit.Id, 10, 64)
hits = append(hits, internal.Match{
ID: id,
})
}
return &internal.SearchResult{
Total: searchResult.TotalHits(),
Hits: hits,
}, nil
}
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