Minor change

Signed-off-by: Paolo Di Tommaso <[email protected]>
seqeralabs · Jan 28, 2025 · 58cf2ea · 58cf2ea
1 parent 2fd4721
commit 58cf2ea
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Showing 2 changed files with 22 additions and 12 deletions.
diff --git a/src/main/groovy/io/seqera/wave/store/cache/AbstractTieredCache.groovy b/src/main/groovy/io/seqera/wave/store/cache/AbstractTieredCache.groovy
@@ -33,6 +33,7 @@ import com.github.benmanes.caffeine.cache.RemovalCause
 import com.github.benmanes.caffeine.cache.RemovalListener
 import groovy.transform.Canonical
 import groovy.transform.CompileStatic
+import groovy.transform.Memoized
 import groovy.transform.ToString
 import groovy.util.logging.Slf4j
 import io.seqera.wave.encoder.EncodingStrategy
@@ -110,10 +111,30 @@ abstract class AbstractTieredCache<V extends MoshiExchange> implements TieredCac
 
     abstract protected String getPrefix()
 
+    /**
+     * The cache probabilistic revalidation internal.
+     *
+     * See  https://blog.cloudflare.com/sometimes-i-cache/
+     *
+     * @return
+     *      The cache cache revalidation internal as a {@link Duration} value.
+     *      When {@link Duration#ZERO} probabilistic revalidation is disabled.
+     */
     protected Duration getCacheRevalidationInterval() {
         return Duration.ZERO
     }
 
+    /**
+     * The cache probabilistic revalidation steepness value.
+     *
+     * By default is implemented as 1 / {@link #getCacheRevalidationInterval()} (as millis).
+     * Subclasses can override this method to provide a different value.
+     *
+     * See https://blog.cloudflare.com/sometimes-i-cache/
+     *
+     * @return Returns the revalidation steepness value.
+     */
+    @Memoized
     protected double getRevalidationSteepness() {
         return 1 / getCacheRevalidationInterval().toMillis()
     }
@@ -302,7 +323,7 @@ abstract class AbstractTieredCache<V extends MoshiExchange> implements TieredCac
         // otherwise, when remaining is greater than the cache revalidation interval
         // no revalidation is needed
         final cacheRevalidationMills = cacheRevalidationInterval.toMillis()
-        if( remainingCacheTime > cacheRevalidationMills ) {
+        if( cacheRevalidationMills < remainingCacheTime ) {
             return false
         }
 

diff --git a/src/test/groovy/io/seqera/wave/store/cache/AbstractTieredCacheTest.groovy b/src/test/groovy/io/seqera/wave/store/cache/AbstractTieredCacheTest.groovy
@@ -290,11 +290,6 @@ class AbstractTieredCacheTest extends Specification implements RedisTestContaine
         // the function should return true
         cache.randomRevalidate(10)  // 10 millis
         cache.randomRevalidate(100) // 100 millis
-        and:
-        // when it's mostly the same as the revalidation interval
-        // it should return false
-        !cache.randomRevalidate(9_000)
-        !cache.randomRevalidate(10_000)
     }
 
     @Retry(count = 5)
@@ -309,11 +304,5 @@ class AbstractTieredCacheTest extends Specification implements RedisTestContaine
         cache.randomRevalidate(10)  // 10 millis
         cache.randomRevalidate(100) // 100 millis
         cache.randomRevalidate(500) // 100 millis
-        and:
-        // when it's mostly the same as the revalidation interval
-        // it should return false
-        !cache.randomRevalidate(250_000)
-        !cache.randomRevalidate(290_000)
-        !cache.randomRevalidate(300_000)
     }
 }