Dmitry Verkhoturov
9ad3be2e97
After this commit, dev auth would start working with the `REMARK_URL` hostname instead of the previously hardcoded 127.0.0.1. Breaks development setup where `REMARK_URL` was set to a non-standard value and dev auth was running on 127.0.0.1 and working, as, after that change, it would stop working.
98 lines
2.1 KiB
Go
98 lines
2.1 KiB
Go
package lcw
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import (
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"fmt"
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"time"
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"github.com/go-pkgz/lcw/eventbus"
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)
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type options struct {
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maxKeys int
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maxValueSize int
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maxKeySize int
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maxCacheSize int64
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ttl time.Duration
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onEvicted func(key string, value interface{})
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eventBus eventbus.PubSub
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}
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// Option func type
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type Option func(o *options) error
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// MaxValSize functional option defines the largest value's size allowed to be cached
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// By default it is 0, which means unlimited.
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func MaxValSize(max int) Option {
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return func(o *options) error {
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if max < 0 {
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return fmt.Errorf("negative max value size")
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}
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o.maxValueSize = max
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return nil
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}
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}
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// MaxKeySize functional option defines the largest key's size allowed to be used in cache
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// By default it is 0, which means unlimited.
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func MaxKeySize(max int) Option {
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return func(o *options) error {
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if max < 0 {
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return fmt.Errorf("negative max key size")
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}
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o.maxKeySize = max
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return nil
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}
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}
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// MaxKeys functional option defines how many keys to keep.
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// By default it is 0, which means unlimited.
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func MaxKeys(max int) Option {
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return func(o *options) error {
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if max < 0 {
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return fmt.Errorf("negative max keys")
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}
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o.maxKeys = max
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return nil
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}
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}
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// MaxCacheSize functional option defines the total size of cached data.
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// By default it is 0, which means unlimited.
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func MaxCacheSize(max int64) Option {
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return func(o *options) error {
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if max < 0 {
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return fmt.Errorf("negative max cache size")
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}
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o.maxCacheSize = max
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return nil
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}
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}
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// TTL functional option defines duration.
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// Works for ExpirableCache only
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func TTL(ttl time.Duration) Option {
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return func(o *options) error {
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if ttl < 0 {
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return fmt.Errorf("negative ttl")
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}
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o.ttl = ttl
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return nil
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}
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}
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// OnEvicted sets callback on invalidation event
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func OnEvicted(fn func(key string, value interface{})) Option {
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return func(o *options) error {
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o.onEvicted = fn
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return nil
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}
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}
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// EventBus sets PubSub for distributed cache invalidation
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func EventBus(pubSub eventbus.PubSub) Option {
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return func(o *options) error {
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o.eventBus = pubSub
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return nil
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}
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}
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