logs-analyzer/signoz/pkg/query-service/cache/cache.go

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2024-09-02 22:47:30 +03:00
package cache
import (
"os"
"time"
inmemory "go.signoz.io/signoz/pkg/query-service/cache/inmemory"
redis "go.signoz.io/signoz/pkg/query-service/cache/redis"
"go.signoz.io/signoz/pkg/query-service/cache/status"
v3 "go.signoz.io/signoz/pkg/query-service/model/v3"
"gopkg.in/yaml.v2"
)
type Options struct {
Name string `yaml:"-"`
Provider string `yaml:"provider"`
Redis *redis.Options `yaml:"redis,omitempty"`
InMemory *inmemory.Options `yaml:"inmemory,omitempty"`
}
// Cache is the interface for the storage backend
type Cache interface {
Connect() error
Store(cacheKey string, data []byte, ttl time.Duration) error
Retrieve(cacheKey string, allowExpired bool) ([]byte, status.RetrieveStatus, error)
SetTTL(cacheKey string, ttl time.Duration)
Remove(cacheKey string)
BulkRemove(cacheKeys []string)
Close() error
}
// KeyGenerator is the interface for the key generator
// The key generator is used to generate the cache keys for the cache entries
type KeyGenerator interface {
// GenerateKeys generates the cache keys for the given query range params
// The keys are returned as a map where the key is the query name and the value is the cache key
GenerateKeys(*v3.QueryRangeParamsV3) map[string]string
}
// LoadFromYAMLCacheConfig loads the cache options from the given YAML config bytes
func LoadFromYAMLCacheConfig(yamlConfig []byte) (*Options, error) {
var options Options
err := yaml.Unmarshal(yamlConfig, &options)
if err != nil {
return nil, err
}
return &options, nil
}
// LoadFromYAMLCacheConfigFile loads the cache options from the given YAML config file
func LoadFromYAMLCacheConfigFile(configFile string) (*Options, error) {
bytes, err := os.ReadFile(configFile)
if err != nil {
return nil, err
}
return LoadFromYAMLCacheConfig(bytes)
}
// NewCache creates a new cache based on the given options
func NewCache(options *Options) Cache {
switch options.Provider {
case "redis":
return redis.New(options.Redis)
case "inmemory":
return inmemory.New(options.InMemory)
default:
return nil
}
}