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feat(factory): embrace the factory pattern
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,101 @@ | ||
| package memory | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "reflect" | ||
| "time" | ||
|
|
||
| gocache "github.com/patrickmn/go-cache" | ||
| "go.signoz.io/signoz/pkg/cache" | ||
| "go.signoz.io/signoz/pkg/factory" | ||
| ) | ||
|
|
||
| type memory struct { | ||
| cc *gocache.Cache | ||
| } | ||
|
|
||
| func NewFactory() factory.ProviderFactory[cache.Cache, cache.Config] { | ||
| return factory.NewProviderFactory(factory.MustNewName("memory"), New) | ||
| } | ||
|
|
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| func New(ctx context.Context, settings factory.ProviderSettings, config cache.Config) (cache.Cache, error) { | ||
| return &memory{cc: gocache.New(config.Memory.TTL, config.Memory.CleanupInterval)}, nil | ||
| } | ||
|
|
||
| // Connect does nothing | ||
| func (c *memory) Connect(_ context.Context) error { | ||
| return nil | ||
| } | ||
|
|
||
| // Store stores the data in the cache | ||
| func (c *memory) Store(_ context.Context, cacheKey string, data cache.CacheableEntity, ttl time.Duration) error { | ||
| // check if the data being passed is a pointer and is not nil | ||
| rv := reflect.ValueOf(data) | ||
| if rv.Kind() != reflect.Pointer || rv.IsNil() { | ||
| return cache.WrapCacheableEntityErrors(reflect.TypeOf(data), "inmemory") | ||
| } | ||
|
|
||
| c.cc.Set(cacheKey, data, ttl) | ||
| return nil | ||
| } | ||
|
|
||
| // Retrieve retrieves the data from the cache | ||
| func (c *memory) Retrieve(_ context.Context, cacheKey string, dest cache.CacheableEntity, allowExpired bool) (cache.RetrieveStatus, error) { | ||
| // check if the destination being passed is a pointer and is not nil | ||
| dstv := reflect.ValueOf(dest) | ||
| if dstv.Kind() != reflect.Pointer || dstv.IsNil() { | ||
| return cache.RetrieveStatusError, cache.WrapCacheableEntityErrors(reflect.TypeOf(dest), "inmemory") | ||
| } | ||
|
|
||
| // check if the destination value is settable | ||
| if !dstv.Elem().CanSet() { | ||
| return cache.RetrieveStatusError, fmt.Errorf("destination value is not settable, %s", dstv.Elem()) | ||
| } | ||
|
|
||
| data, found := c.cc.Get(cacheKey) | ||
| if !found { | ||
| return cache.RetrieveStatusKeyMiss, nil | ||
| } | ||
|
|
||
| // check the type compatbility between the src and dest | ||
| srcv := reflect.ValueOf(data) | ||
| if !srcv.Type().AssignableTo(dstv.Type()) { | ||
| return cache.RetrieveStatusError, fmt.Errorf("src type is not assignable to dst type") | ||
| } | ||
|
|
||
| // set the value to from src to dest | ||
| dstv.Elem().Set(srcv.Elem()) | ||
| return cache.RetrieveStatusHit, nil | ||
| } | ||
|
|
||
| // SetTTL sets the TTL for the cache entry | ||
| func (c *memory) SetTTL(_ context.Context, cacheKey string, ttl time.Duration) { | ||
| item, found := c.cc.Get(cacheKey) | ||
| if !found { | ||
| return | ||
| } | ||
| c.cc.Replace(cacheKey, item, ttl) | ||
| } | ||
|
|
||
| // Remove removes the cache entry | ||
| func (c *memory) Remove(_ context.Context, cacheKey string) { | ||
| c.cc.Delete(cacheKey) | ||
| } | ||
|
|
||
| // BulkRemove removes the cache entries | ||
| func (c *memory) BulkRemove(_ context.Context, cacheKeys []string) { | ||
| for _, cacheKey := range cacheKeys { | ||
| c.cc.Delete(cacheKey) | ||
| } | ||
| } | ||
|
|
||
| // Close does nothing | ||
| func (c *memory) Close(_ context.Context) error { | ||
| return nil | ||
| } | ||
|
|
||
| // Configuration returns the cache configuration | ||
| func (c *memory) Configuration() *cache.Memory { | ||
| return nil | ||
| } |
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