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package main
import (
"fmt"
"github.com/boltdb/bolt"
)
// Generate data for benchmarks.
func Generate(destPath string, numBuckets, numItems int) {
// Open the database.
db, err := bolt.Open(destPath, 0600)
if err != nil {
fatalf("open db:", err)
return
}
defer db.Close()
for bucketIndex := 0; bucketIndex < numBuckets; bucketIndex++ {
bucketName := fmt.Sprintf("bucket%03d", bucketIndex)
err = db.Update(func(tx *bolt.Tx) error {
// Create the bucket if it doesn't exist.
if err := tx.CreateBucketIfNotExists([]byte(bucketName)); err != nil {
fatalf("create bucket: %s", err)
return nil
}
// Find bucket.
b := tx.Bucket([]byte(bucketName))
if b == nil {
fatalf("bucket not found: %s", bucketName)
return nil
}
for i := 0; i < numItems; i++ {
key := fmt.Sprintf("key%03d", i)
value := fmt.Sprintf("value%03d", i)
// Set value for a given key.
if err := b.Put([]byte(key), []byte(value)); err != nil {
return err
}
}
return nil
})
}
if err != nil {
fatal(err)
return
}
}
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