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Merge pull request #24 from opsramp/release/v0.106.x
Merge Release/v0.106.x to main 23Aug2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| package lru | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "sync" | ||
| "time" | ||
|
|
||
| cache "github.com/hashicorp/golang-lru/v2/expirable" | ||
| ) | ||
|
|
||
| type Cache struct { | ||
| lrucache *cache.LRU[string, string] | ||
| } | ||
|
|
||
| const ( | ||
| DEFAULT_CACHE_SIZE = 256 | ||
| DEFAULT_CACHE_EXPIRATION_INTERVAL = 10 * time.Minute | ||
| ) | ||
|
|
||
| var ( | ||
| once sync.Once | ||
| instance *Cache | ||
| ) | ||
|
|
||
| func New(size int, expirationInterval time.Duration) *Cache { | ||
| return &Cache{lrucache: cache.NewLRU[string, string](size, nil, expirationInterval)} | ||
| } | ||
|
|
||
| func GetInstance(size int, expirationInterval time.Duration) *Cache { | ||
| once.Do(func() { | ||
| instance = New(size, expirationInterval) | ||
| }) | ||
| return instance | ||
| } | ||
|
|
||
| func (c *Cache) Get(key string) (string, bool) { | ||
| return c.lrucache.Get(key) | ||
| } | ||
|
|
||
| func (c *Cache) Add(key string, value string) { | ||
| c.lrucache.Add(key, value) | ||
| } | ||
|
|
||
| func (c *Cache) AddEvicted(key string, value string) (evicted bool) { | ||
| return c.lrucache.Add(key, value) | ||
| } | ||
|
|
||
| func (c *Cache) PrintKeys() { | ||
| fmt.Println(c.lrucache.Keys()) | ||
| } | ||
| func (c *Cache) PrintValues() { | ||
| fmt.Println(c.lrucache.Values()) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| package lru | ||
|
|
||
| import ( | ||
| "testing" | ||
| ) | ||
|
|
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| func TestLRU(t *testing.T) { | ||
| cache := New(2, 0) | ||
|
|
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| // Test cases | ||
| cache.Add("key1", "value1") | ||
| cache.Add("key2", "value2") | ||
|
|
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| value, ok := cache.Get("key1") | ||
| if !ok || value != "value1" { | ||
| t.Errorf("Expected value1, got %v", value) | ||
| } | ||
|
|
||
| cache.Add("key3", "value3") | ||
|
|
||
| _, ok = cache.Get("key4") | ||
| if ok { | ||
| t.Errorf("Expected key1 to be evicted") | ||
| } | ||
| } |
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