/
db_find_docs.go
57 lines (47 loc) · 1.11 KB
/
db_find_docs.go
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package storage
import (
"context"
"fmt"
"time"
"github.com/goydb/goydb/pkg/model"
"github.com/goydb/goydb/pkg/port"
)
func (d *Database) FindDocs(ctx context.Context, query model.FindQuery) ([]*model.Document, *model.ExecutionStats, error) {
var stats model.ExecutionStats
var total int
var docs []*model.Document
// total execution time
start := time.Now()
defer func() { stats.ExecutionTime = float64(time.Since(start)) / float64(time.Millisecond) }()
err := d.Iterator(ctx, nil, func(i port.Iterator) error {
total = i.Total()
if total == 0 {
return nil
}
i.SetSkip(int(query.Skip))
if query.Limit != 0 {
i.SetLimit(int(query.Limit))
}
if query.Bookmark != "" {
i.SetStartKey([]byte(query.Bookmark))
}
for doc := i.First(); i.Continue(); doc = i.Next() {
stats.TotalDocsExamined++
ok, err := query.Match(doc)
if err != nil {
return fmt.Errorf("find failed: %w", err)
}
if ok {
stats.ResultsReturned++
docs = append(docs, doc)
} else {
i.IncLimit()
}
}
return nil
})
if err != nil {
return nil, nil, err
}
return docs, &stats, nil
}