forked from SpectoLabs/hoverfly
/
cache.go
100 lines (86 loc) · 1.85 KB
/
cache.go
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package main
import (
"encoding/json"
"fmt"
log "github.com/Sirupsen/logrus"
"github.com/boltdb/bolt"
)
const requestsBucketName = "rqbucket"
type Cache struct {
db *bolt.DB
requestsBucket []byte
}
func getDB(name string) *bolt.DB {
log.WithFields(log.Fields{
"databaseName": name,
}).Info("Initiating database")
db, err := bolt.Open(name, 0600, nil)
if err != nil {
log.Fatal(err)
}
return db
}
func (c *Cache) Set(key, value []byte) error {
err := c.db.Update(func(tx *bolt.Tx) error {
bucket, err := tx.CreateBucketIfNotExists(c.requestsBucket)
if err != nil {
return err
}
err = bucket.Put(key, value)
if err != nil {
return err
}
return nil
})
return err
}
func (c *Cache) Get(key []byte) (value []byte, err error) {
err = c.db.View(func(tx *bolt.Tx) error {
bucket := tx.Bucket(c.requestsBucket)
if bucket == nil {
return fmt.Errorf("Bucket %q not found!", c.requestsBucket)
}
value = bucket.Get(key)
return nil
})
return
}
func (c *Cache) GetAllRequests() (payloads []Payload, err error) {
err = c.db.View(func(tx *bolt.Tx) error {
b := tx.Bucket(c.requestsBucket)
if b == nil {
// bucket doesn't exist
return nil
}
c := b.Cursor()
for k, v := c.First(); k != nil; k, v = c.Next() {
var pl Payload
err = json.Unmarshal(v, &pl)
if err != nil {
log.WithFields(log.Fields{
"error": err.Error(),
"json": v,
}).Warning("Failed to deserialize json")
} else {
payloads = append(payloads, pl)
}
}
return nil
})
return
}
func (c *Cache) DeleteBucket(name []byte) (err error) {
err = c.db.Update(func(tx *bolt.Tx) error {
err = tx.DeleteBucket(name)
if err != nil {
log.WithFields(log.Fields{
"error": err.Error(),
"name": string(name),
}).Warning("Failed to delete bucket")
return err
} else {
return nil
}
})
return
}