move implementations to external repos (#17)
Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>
This commit is contained in:
GitHub
@@ -1,299 +0,0 @@
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// Package memory is a in-memory store store
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package memory
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import (
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"path/filepath"
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"sort"
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"strings"
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"time"
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"github.com/patrickmn/go-cache"
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"github.com/pkg/errors"
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"github.com/unistack-org/micro/v3/store"
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)
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// NewStore returns a memory store
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func NewStore(opts ...store.Option) store.Store {
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s := &memoryStore{
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options: store.Options{
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Database: "micro",
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Table: "micro",
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},
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store: cache.New(cache.NoExpiration, 5*time.Minute),
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}
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for _, o := range opts {
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o(&s.options)
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}
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return s
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}
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type memoryStore struct {
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options store.Options
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store *cache.Cache
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}
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type storeRecord struct {
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key string
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value []byte
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metadata map[string]interface{}
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expiresAt time.Time
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}
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func (m *memoryStore) key(prefix, key string) string {
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return filepath.Join(prefix, key)
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}
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func (m *memoryStore) prefix(database, table string) string {
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if len(database) == 0 {
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database = m.options.Database
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}
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if len(table) == 0 {
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table = m.options.Table
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}
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return filepath.Join(database, table)
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}
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func (m *memoryStore) get(prefix, key string) (*store.Record, error) {
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key = m.key(prefix, key)
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var storedRecord *storeRecord
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r, found := m.store.Get(key)
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if !found {
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return nil, store.ErrNotFound
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}
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storedRecord, ok := r.(*storeRecord)
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if !ok {
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return nil, errors.New("Retrieved a non *storeRecord from the cache")
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}
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// Copy the record on the way out
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newRecord := &store.Record{}
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newRecord.Key = strings.TrimPrefix(storedRecord.key, prefix+"/")
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newRecord.Value = make([]byte, len(storedRecord.value))
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newRecord.Metadata = make(map[string]interface{})
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// copy the value into the new record
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copy(newRecord.Value, storedRecord.value)
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// check if we need to set the expiry
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if !storedRecord.expiresAt.IsZero() {
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newRecord.Expiry = time.Until(storedRecord.expiresAt)
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}
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// copy in the metadata
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for k, v := range storedRecord.metadata {
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newRecord.Metadata[k] = v
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}
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return newRecord, nil
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}
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func (m *memoryStore) set(prefix string, r *store.Record) {
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key := m.key(prefix, r.Key)
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// copy the incoming record and then
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// convert the expiry in to a hard timestamp
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i := &storeRecord{}
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i.key = r.Key
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i.value = make([]byte, len(r.Value))
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i.metadata = make(map[string]interface{})
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// copy the the value
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copy(i.value, r.Value)
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// set the expiry
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if r.Expiry != 0 {
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i.expiresAt = time.Now().Add(r.Expiry)
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}
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// set the metadata
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for k, v := range r.Metadata {
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i.metadata[k] = v
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}
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m.store.Set(key, i, r.Expiry)
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}
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func (m *memoryStore) delete(prefix, key string) {
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key = m.key(prefix, key)
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m.store.Delete(key)
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}
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func (m *memoryStore) list(prefix string, limit, offset uint) []string {
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allItems := m.store.Items()
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allKeys := make([]string, len(allItems))
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i := 0
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for k := range allItems {
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if !strings.HasPrefix(k, prefix+"/") {
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continue
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}
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allKeys[i] = strings.TrimPrefix(k, prefix+"/")
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i++
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}
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if limit != 0 || offset != 0 {
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sort.Slice(allKeys, func(i, j int) bool { return allKeys[i] < allKeys[j] })
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sort.Slice(allKeys, func(i, j int) bool { return allKeys[i] < allKeys[j] })
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end := len(allKeys)
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if limit > 0 {
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calcLimit := int(offset + limit)
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if calcLimit < end {
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end = calcLimit
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}
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}
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if int(offset) >= end {
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return nil
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}
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return allKeys[offset:end]
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}
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return allKeys
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}
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func (m *memoryStore) Close() error {
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m.store.Flush()
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return nil
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}
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func (m *memoryStore) Init(opts ...store.Option) error {
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for _, o := range opts {
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o(&m.options)
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}
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return nil
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}
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func (m *memoryStore) String() string {
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return "memory"
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}
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func (m *memoryStore) Read(key string, opts ...store.ReadOption) ([]*store.Record, error) {
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readOpts := store.ReadOptions{}
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for _, o := range opts {
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o(&readOpts)
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}
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prefix := m.prefix(readOpts.Database, readOpts.Table)
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var keys []string
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// Handle Prefix / suffix
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if readOpts.Prefix || readOpts.Suffix {
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k := m.list(prefix, readOpts.Limit, readOpts.Offset)
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for _, kk := range k {
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if readOpts.Prefix && !strings.HasPrefix(kk, key) {
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continue
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}
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if readOpts.Suffix && !strings.HasSuffix(kk, key) {
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continue
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}
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keys = append(keys, kk)
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}
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} else {
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keys = []string{key}
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}
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var results []*store.Record
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for _, k := range keys {
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r, err := m.get(prefix, k)
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if err != nil {
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return results, err
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}
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results = append(results, r)
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}
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return results, nil
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}
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func (m *memoryStore) Write(r *store.Record, opts ...store.WriteOption) error {
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writeOpts := store.WriteOptions{}
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for _, o := range opts {
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o(&writeOpts)
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}
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prefix := m.prefix(writeOpts.Database, writeOpts.Table)
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if len(opts) > 0 {
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// Copy the record before applying options, or the incoming record will be mutated
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newRecord := store.Record{}
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newRecord.Key = r.Key
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newRecord.Value = make([]byte, len(r.Value))
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newRecord.Metadata = make(map[string]interface{})
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copy(newRecord.Value, r.Value)
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newRecord.Expiry = r.Expiry
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if !writeOpts.Expiry.IsZero() {
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newRecord.Expiry = time.Until(writeOpts.Expiry)
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}
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if writeOpts.TTL != 0 {
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newRecord.Expiry = writeOpts.TTL
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}
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for k, v := range r.Metadata {
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newRecord.Metadata[k] = v
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}
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m.set(prefix, &newRecord)
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return nil
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}
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// set
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m.set(prefix, r)
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return nil
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}
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func (m *memoryStore) Delete(key string, opts ...store.DeleteOption) error {
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deleteOptions := store.DeleteOptions{}
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for _, o := range opts {
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o(&deleteOptions)
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}
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prefix := m.prefix(deleteOptions.Database, deleteOptions.Table)
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m.delete(prefix, key)
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return nil
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}
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func (m *memoryStore) Options() store.Options {
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return m.options
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}
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func (m *memoryStore) List(opts ...store.ListOption) ([]string, error) {
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listOptions := store.ListOptions{}
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for _, o := range opts {
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o(&listOptions)
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}
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prefix := m.prefix(listOptions.Database, listOptions.Table)
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keys := m.list(prefix, listOptions.Limit, listOptions.Offset)
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if len(listOptions.Prefix) > 0 {
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var prefixKeys []string
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for _, k := range keys {
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if strings.HasPrefix(k, listOptions.Prefix) {
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prefixKeys = append(prefixKeys, k)
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}
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}
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keys = prefixKeys
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}
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if len(listOptions.Suffix) > 0 {
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var suffixKeys []string
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for _, k := range keys {
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if strings.HasSuffix(k, listOptions.Suffix) {
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suffixKeys = append(suffixKeys, k)
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}
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}
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keys = suffixKeys
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}
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return keys, nil
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}
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@@ -1,278 +0,0 @@
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package memory
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import (
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"fmt"
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"os"
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"testing"
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"time"
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"github.com/kr/pretty"
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"github.com/unistack-org/micro/v3/store"
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)
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func TestMemoryReInit(t *testing.T) {
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s := NewStore(store.Table("aaa"))
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s.Init(store.Table(""))
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if len(s.Options().Table) > 0 {
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t.Error("Init didn't reinitialise the store")
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}
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}
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func TestMemoryBasic(t *testing.T) {
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s := NewStore()
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s.Init()
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basictest(s, t)
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}
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func TestMemoryPrefix(t *testing.T) {
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s := NewStore()
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s.Init(store.Table("some-prefix"))
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basictest(s, t)
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}
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func TestMemoryNamespace(t *testing.T) {
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s := NewStore()
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s.Init(store.Database("some-namespace"))
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basictest(s, t)
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}
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func TestMemoryNamespacePrefix(t *testing.T) {
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s := NewStore()
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s.Init(store.Table("some-prefix"), store.Database("some-namespace"))
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basictest(s, t)
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}
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func basictest(s store.Store, t *testing.T) {
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if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
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t.Logf("Testing store %s, with options %# v\n", s.String(), pretty.Formatter(s.Options()))
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}
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// Read and Write an expiring Record
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if err := s.Write(&store.Record{
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Key: "Hello",
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Value: []byte("World"),
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Expiry: time.Millisecond * 100,
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}); err != nil {
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t.Error(err)
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}
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if r, err := s.Read("Hello"); err != nil {
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t.Error(err)
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} else {
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if len(r) != 1 {
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t.Error("Read returned multiple records")
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}
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if r[0].Key != "Hello" {
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t.Errorf("Expected %s, got %s", "Hello", r[0].Key)
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}
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if string(r[0].Value) != "World" {
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t.Errorf("Expected %s, got %s", "World", r[0].Value)
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}
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}
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time.Sleep(time.Millisecond * 200)
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if _, err := s.Read("Hello"); err != store.ErrNotFound {
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t.Errorf("Expected %# v, got %# v", store.ErrNotFound, err)
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}
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// Write 3 records with various expiry and get with prefix
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records := []*store.Record{
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&store.Record{
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Key: "foo",
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Value: []byte("foofoo"),
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},
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&store.Record{
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Key: "foobar",
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Value: []byte("foobarfoobar"),
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Expiry: time.Millisecond * 100,
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},
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&store.Record{
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Key: "foobarbaz",
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Value: []byte("foobarbazfoobarbaz"),
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Expiry: 2 * time.Millisecond * 100,
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},
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}
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for _, r := range records {
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if err := s.Write(r); err != nil {
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t.Errorf("Couldn't write k: %s, v: %# v (%s)", r.Key, pretty.Formatter(r.Value), err)
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}
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}
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if results, err := s.Read("foo", store.ReadPrefix()); err != nil {
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
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} else {
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if len(results) != 3 {
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t.Errorf("Expected 3 items, got %d", len(results))
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}
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if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
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t.Logf("Prefix test: %v\n", pretty.Formatter(results))
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}
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}
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time.Sleep(time.Millisecond * 100)
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if results, err := s.Read("foo", store.ReadPrefix()); err != nil {
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
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} else {
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if len(results) != 2 {
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t.Errorf("Expected 2 items, got %d", len(results))
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}
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if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
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t.Logf("Prefix test: %v\n", pretty.Formatter(results))
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}
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}
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time.Sleep(time.Millisecond * 100)
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if results, err := s.Read("foo", store.ReadPrefix()); err != nil {
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
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} else {
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if len(results) != 1 {
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t.Errorf("Expected 1 item, got %d", len(results))
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}
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if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
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t.Logf("Prefix test: %# v\n", pretty.Formatter(results))
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}
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}
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if err := s.Delete("foo", func(d *store.DeleteOptions) {}); err != nil {
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t.Errorf("Delete failed (%v)", err)
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}
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if results, err := s.Read("foo", store.ReadPrefix()); err != nil {
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
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} else {
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if len(results) != 0 {
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t.Errorf("Expected 0 items, got %d (%# v)", len(results), pretty.Formatter(results))
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}
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}
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// Write 3 records with various expiry and get with Suffix
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records = []*store.Record{
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&store.Record{
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Key: "foo",
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Value: []byte("foofoo"),
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},
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&store.Record{
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Key: "barfoo",
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Value: []byte("barfoobarfoo"),
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Expiry: time.Millisecond * 100,
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},
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&store.Record{
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Key: "bazbarfoo",
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Value: []byte("bazbarfoobazbarfoo"),
|
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Expiry: 2 * time.Millisecond * 100,
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},
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}
|
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for _, r := range records {
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if err := s.Write(r); err != nil {
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t.Errorf("Couldn't write k: %s, v: %# v (%s)", r.Key, pretty.Formatter(r.Value), err)
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}
|
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}
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if results, err := s.Read("foo", store.ReadSuffix()); err != nil {
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
|
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} else {
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if len(results) != 3 {
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t.Errorf("Expected 3 items, got %d", len(results))
|
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}
|
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if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
|
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t.Logf("Prefix test: %v\n", pretty.Formatter(results))
|
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}
|
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}
|
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time.Sleep(time.Millisecond * 100)
|
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if results, err := s.Read("foo", store.ReadSuffix()); err != nil {
|
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
|
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} else {
|
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if len(results) != 2 {
|
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t.Errorf("Expected 2 items, got %d", len(results))
|
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}
|
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if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
|
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t.Logf("Prefix test: %v\n", pretty.Formatter(results))
|
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}
|
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}
|
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time.Sleep(time.Millisecond * 100)
|
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if results, err := s.Read("foo", store.ReadSuffix()); err != nil {
|
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
|
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} else {
|
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if len(results) != 1 {
|
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t.Errorf("Expected 1 item, got %d", len(results))
|
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}
|
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if len(os.Getenv("IN_TRAVIS_CI")) == 0 {
|
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t.Logf("Prefix test: %# v\n", pretty.Formatter(results))
|
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}
|
||||
}
|
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if err := s.Delete("foo"); err != nil {
|
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t.Errorf("Delete failed (%v)", err)
|
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}
|
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if results, err := s.Read("foo", store.ReadSuffix()); err != nil {
|
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t.Errorf("Couldn't read all \"foo\" keys, got %# v (%s)", pretty.Formatter(results), err)
|
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} else {
|
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if len(results) != 0 {
|
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t.Errorf("Expected 0 items, got %d (%# v)", len(results), pretty.Formatter(results))
|
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}
|
||||
}
|
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|
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// Test Prefix, Suffix and WriteOptions
|
||||
if err := s.Write(&store.Record{
|
||||
Key: "foofoobarbar",
|
||||
Value: []byte("something"),
|
||||
}, store.WriteTTL(time.Millisecond*100)); err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
if err := s.Write(&store.Record{
|
||||
Key: "foofoo",
|
||||
Value: []byte("something"),
|
||||
}, store.WriteExpiry(time.Now().Add(time.Millisecond*100))); err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
if err := s.Write(&store.Record{
|
||||
Key: "barbar",
|
||||
Value: []byte("something"),
|
||||
// TTL has higher precedence than expiry
|
||||
}, store.WriteExpiry(time.Now().Add(time.Hour)), store.WriteTTL(time.Millisecond*100)); err != nil {
|
||||
t.Error(err)
|
||||
}
|
||||
if results, err := s.Read("foo", store.ReadPrefix(), store.ReadSuffix()); err != nil {
|
||||
t.Error(err)
|
||||
} else {
|
||||
if len(results) != 1 {
|
||||
t.Errorf("Expected 1 results, got %d: %# v", len(results), pretty.Formatter(results))
|
||||
}
|
||||
}
|
||||
time.Sleep(time.Millisecond * 100)
|
||||
if results, err := s.List(); err != nil {
|
||||
t.Errorf("List failed: %s", err)
|
||||
} else {
|
||||
if len(results) != 0 {
|
||||
t.Error("Expiry options were not effective")
|
||||
}
|
||||
}
|
||||
s.Write(&store.Record{Key: "a", Value: []byte("a")})
|
||||
s.Write(&store.Record{Key: "aa", Value: []byte("aa")})
|
||||
s.Write(&store.Record{Key: "aaa", Value: []byte("aaa")})
|
||||
if results, err := s.Read("b", store.ReadPrefix()); err != nil {
|
||||
t.Error(err)
|
||||
} else {
|
||||
if len(results) != 0 {
|
||||
t.Errorf("Expected 0 results, got %d", len(results))
|
||||
}
|
||||
}
|
||||
|
||||
s.Close() // reset the store
|
||||
for i := 0; i < 10; i++ {
|
||||
s.Write(&store.Record{
|
||||
Key: fmt.Sprintf("a%d", i),
|
||||
Value: []byte{},
|
||||
})
|
||||
}
|
||||
if results, err := s.Read("a", store.ReadLimit(5), store.ReadPrefix()); err != nil {
|
||||
t.Error(err)
|
||||
} else {
|
||||
if len(results) != 5 {
|
||||
t.Fatal("Expected 5 results, got ", len(results))
|
||||
}
|
||||
if results[0].Key != "a0" {
|
||||
t.Fatalf("Expected a0, got %s", results[0].Key)
|
||||
}
|
||||
if results[4].Key != "a4" {
|
||||
t.Fatalf("Expected a4, got %s", results[4].Key)
|
||||
}
|
||||
}
|
||||
if results, err := s.Read("a", store.ReadLimit(30), store.ReadOffset(5), store.ReadPrefix()); err != nil {
|
||||
t.Error(err)
|
||||
} else {
|
||||
if len(results) != 5 {
|
||||
t.Error("Expected 5 results, got ", len(results))
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user