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Implement namespace optional arg

master
Bel LaPointe 2019-03-20 09:54:26 -06:00
parent b79cb97ba6
commit b7a231feaf
10 changed files with 101 additions and 45 deletions
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10
bolt.go
View File

@ -13,10 +13,11 @@ func NewBolt(path string) (*Bolt, error) {
}, err
}
func (b *Bolt) Get(key string) ([]byte, error) {
func (b *Bolt) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
var result []byte
err := b.db.View(func(tx *bolt.Tx) error {
bkt := tx.Bucket([]byte(DefaultNamespace))
bkt := tx.Bucket([]byte(namespace))
if bkt == nil {
return ErrNotFound
}
@ -29,9 +30,10 @@ func (b *Bolt) Get(key string) ([]byte, error) {
return result, err
}
func (b *Bolt) Set(key string, value []byte) error {
func (b *Bolt) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
return b.db.Update(func(tx *bolt.Tx) error {
bkt, err := tx.CreateBucketIfNotExists([]byte(DefaultNamespace))
bkt, err := tx.CreateBucketIfNotExists([]byte(namespace))
if err != nil {
return err
}

11
cache.go
View File

@ -2,6 +2,7 @@ package storage
import (
"os"
"path"
"time"
cache "github.com/patrickmn/go-cache"
@ -24,8 +25,9 @@ func NewCache(path ...string) (*Cache, error) {
return c, err
}
func (c *Cache) Get(key string) ([]byte, error) {
v, ok := c.db.Get(key)
func (c *Cache) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
v, ok := c.db.Get(path.Join(namespace, key))
if !ok {
return nil, ErrNotFound
}
@ -36,8 +38,9 @@ func (c *Cache) Get(key string) ([]byte, error) {
return b, nil
}
func (c *Cache) Set(key string, value []byte) error {
c.db.Set(key, value, 0)
func (c *Cache) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
c.db.Set(path.Join(namespace, key), value, 0)
return nil
}

12
db.go
View File

@ -5,8 +5,8 @@ import (
)
type DB interface {
Get(string) ([]byte, error)
Set(string, []byte) error
Get(string, ...string) ([]byte, error)
Set(string, []byte, ...string) error
Close() error
}
@ -38,3 +38,11 @@ func New(key Type, params ...string) (db DB, err error) {
}
return
}
func resolveNamespace(ns []string) string {
namespace := DefaultNamespace
if len(ns) > 0 {
namespace = ns[0]
}
return namespace
}

16
db_test.go
View File

@ -15,16 +15,18 @@ type mock struct {
m map[string][]byte
}
func (mock *mock) Get(key string) ([]byte, error) {
v, ok := mock.m[key]
func (mock *mock) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
v, ok := mock.m[path.Join(namespace, key)]
if ok {
return v, nil
}
return nil, ErrNotFound
}
func (mock *mock) Set(key string, value []byte) error {
mock.m[key] = value
func (mock *mock) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
mock.m[path.Join(namespace, key)] = value
return nil
}
@ -118,6 +120,12 @@ func TestImplementations(t *testing.T) {
cases = append(cases, memcacheCluster)
}
if minio, err := NewMinio("localhost:9000", "accesskey", "secretkey"); err != nil {
t.Errorf("cannot make minio: %v", err)
} else {
cases = append(cases, minio)
}
validKey := "key"
validValue := []byte("value")

12
leveldb.go
View File

@ -1,6 +1,8 @@
package storage
import (
"path"
"github.com/syndtr/goleveldb/leveldb"
"github.com/syndtr/goleveldb/leveldb/filter"
"github.com/syndtr/goleveldb/leveldb/opt"
@ -19,14 +21,15 @@ func NewLevelDB(path string) (*LevelDB, error) {
}, err
}
func (ldb *LevelDB) Get(key string) ([]byte, error) {
func (ldb *LevelDB) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
snapshot, err := ldb.db.GetSnapshot()
if err != nil {
return nil, err
}
defer snapshot.Release()
v, err := snapshot.Get([]byte(key), nil)
v, err := snapshot.Get([]byte(path.Join(namespace, key)), nil)
if err == leveldb.ErrNotFound {
err = ErrNotFound
} else if err != nil {
@ -36,9 +39,10 @@ func (ldb *LevelDB) Get(key string) ([]byte, error) {
return v, err
}
func (ldb *LevelDB) Set(key string, value []byte) error {
func (ldb *LevelDB) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
batch := &leveldb.Batch{}
batch.Put([]byte(key), value)
batch.Put([]byte(path.Join(namespace, key)), value)
return ldb.db.Write(batch, nil)
}

30
map.go
View File

@ -4,10 +4,10 @@ import (
"fmt"
)
type Map map[string][]byte
type Map map[string]map[string][]byte
func NewMap() *Map {
m := make(map[string][]byte)
m := make(map[string]map[string][]byte)
n := Map(m)
return &n
}
@ -28,20 +28,30 @@ func (m *Map) Close() error {
return nil
}
func (m *Map) Get(key string) ([]byte, error) {
if _, ok := (*m)[key]; !ok {
func (m *Map) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
if _, ok := (*m)[namespace]; !ok {
return nil, ErrNotFound
}
return (*m)[key], nil
if _, ok := (*m)[namespace][key]; !ok {
return nil, ErrNotFound
}
return (*m)[namespace][key], nil
}
func (m *Map) Set(key string, value []byte) error {
func (m *Map) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
if value == nil {
if _, ok := (*m)[key]; ok {
delete(*m, key)
}
if _, ok := (*m)[namespace]; !ok {
return nil
} else if _, ok := (*m)[namespace][key]; ok {
delete((*m)[namespace], key)
}
} else {
if _, ok := (*m)[namespace]; !ok {
(*m)[namespace] = make(map[string][]byte)
}
(*m)[namespace][key] = value
}
(*m)[key] = value
return nil
}

24
memcache.go
View File

@ -2,6 +2,7 @@ package storage
import (
"net"
"path"
"github.com/bradfitz/gomemcache/memcache"
)
@ -24,8 +25,13 @@ func (a *netAddr) String() string {
}
func NewMemcache(addr string, addrs ...string) (*Memcache, error) {
for i := len(addrs) - 1; i >= 0; i-- {
if len(addrs[i]) == 0 {
addrs = append(addrs[:i], addrs[i+1:]...)
}
}
ss := &memcache.ServerList{}
if err := ss.SetServers(append(addrs, addr)...); err != nil {
if err := ss.SetServers(append([]string{addr}, addrs...)...); err != nil {
return nil, err
}
if err := ss.Each(func(addr net.Addr) error {
@ -41,14 +47,22 @@ func NewMemcache(addr string, addrs ...string) (*Memcache, error) {
return &Memcache{db: db}, nil
}
func (mc *Memcache) Get(key string) ([]byte, error) {
v, err := mc.db.Get(key)
func (mc *Memcache) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
v, err := mc.db.Get(path.Join(namespace, key))
if err != nil {
return nil, err
}
if v == nil {
return nil, ErrNotFound
}
return v.Value, err
}
func (mc *Memcache) Set(key string, value []byte) error {
func (mc *Memcache) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
return mc.db.Set(&memcache.Item{
Key: key,
Key: path.Join(namespace, key),
Value: value,
})
}

11
memcachecluster.go
View File

@ -2,6 +2,7 @@ package storage
import (
"net"
"path"
"github.com/bradfitz/gomemcache/memcache"
"github.com/buraksezer/consistent"
@ -68,14 +69,16 @@ func NewMemcacheCluster(addr string, addrs ...string) (*MemcacheCluster, error)
return &MemcacheCluster{db: db}, nil
}
func (mc *MemcacheCluster) Get(key string) ([]byte, error) {
v, err := mc.db.Get(key)
func (mc *MemcacheCluster) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
v, err := mc.db.Get(path.Join(namespace, key))
return v.Value, err
}
func (mc *MemcacheCluster) Set(key string, value []byte) error {
func (mc *MemcacheCluster) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
return mc.db.Set(&memcache.Item{
Key: key,
Key: path.Join(namespace, key),
Value: value,
})
}

10
mongo.go
View File

@ -53,10 +53,11 @@ func NewMongo(addr string, auth ...string) (*Mongo, error) {
return &Mongo{db: db}, nil
}
func (mg *Mongo) Get(key string) ([]byte, error) {
func (mg *Mongo) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
collection := mg.db.Database(DefaultNamespace).Collection(DefaultNamespace)
collection := mg.db.Database(DefaultNamespace).Collection(namespace)
filter := bson.M{"_id": key}
cursor, err := collection.Find(ctx, filter)
if err != nil {
@ -82,10 +83,11 @@ func (mg *Mongo) Get(key string) ([]byte, error) {
return b, nil
}
func (mg *Mongo) Set(key string, value []byte) error {
func (mg *Mongo) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
defer cancel()
collection := mg.db.Database(DefaultNamespace).Collection(DefaultNamespace)
collection := mg.db.Database(DefaultNamespace).Collection(namespace)
filter := bson.M{"_id": key}
document := bson.M{"value": value}
_, err := collection.ReplaceOne(ctx, filter, document, options.Replace().SetUpsert(true))

10
riak.go
View File

@ -28,11 +28,12 @@ func NewRiak(addr string, addrs ...string) (*Riak, error) {
}, err
}
func (r *Riak) Get(key string) ([]byte, error) {
func (r *Riak) Get(key string, ns ...string) ([]byte, error) {
namespace := resolveNamespace(ns)
obj := &riak.Object{}
cmd, err := riak.NewFetchValueCommandBuilder().
WithBucket(DefaultNamespace).
WithBucket(namespace).
WithKey(key).
Build()
if err != nil {
@ -43,13 +44,14 @@ func (r *Riak) Get(key string) ([]byte, error) {
return obj.Value, err
}
func (r *Riak) Set(key string, value []byte) error {
func (r *Riak) Set(key string, value []byte, ns ...string) error {
namespace := resolveNamespace(ns)
obj := &riak.Object{
Value: value,
}
cmd, err := riak.NewStoreValueCommandBuilder().
WithBucket(DefaultNamespace).
WithBucket(namespace).
WithContent(obj).
Build()
if err != nil {