Unstable Storage management

.idea/libraries/io_quarkus_caffeine.xml

+<component name="libraryTable">
+  <library name="io.quarkus.caffeine" type="repository">
+    <properties maven-id="io.quarkus:quarkus-caffeine:2.16.5.Final" />
+    <CLASSES>
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-caffeine/2.16.5.Final/quarkus-caffeine-2.16.5.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-core/2.16.5.Final/quarkus-core-2.16.5.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/annotation/jakarta.annotation-api/1.3.5/jakarta.annotation-api-1.3.5.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/enterprise/jakarta.enterprise.cdi-api/2.0.2/jakarta.enterprise.cdi-api-2.0.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/el/jakarta.el-api/3.0.3/jakarta.el-api-3.0.3.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/interceptor/jakarta.interceptor-api/1.2.5/jakarta.interceptor-api-1.2.5.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/ejb/jakarta.ejb-api/3.2.6/jakarta.ejb-api-3.2.6.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/transaction/jakarta.transaction-api/1.3.2/jakarta.transaction-api-1.3.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/inject/jakarta.inject-api/1.0/jakarta.inject-api-1.0.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-ide-launcher/2.16.5.Final/quarkus-ide-launcher-2.16.5.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-development-mode-spi/2.16.5.Final/quarkus-development-mode-spi-2.16.5.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/config/smallrye-config/2.13.3/smallrye-config-2.13.3.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/config/smallrye-config-core/2.13.3/smallrye-config-core-2.13.3.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/eclipse/microprofile/config/microprofile-config-api/2.0.1/microprofile-config-api-2.0.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-annotation/1.13.2/smallrye-common-annotation-1.13.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-expression/1.13.2/smallrye-common-expression-1.13.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-function/1.13.2/smallrye-common-function-1.13.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-constraint/1.13.2/smallrye-common-constraint-1.13.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-classloader/1.13.2/smallrye-common-classloader-1.13.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/ow2/asm/asm/9.4/asm-9.4.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/config/smallrye-config-common/2.13.3/smallrye-config-common-2.13.3.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/logging/jboss-logging/3.5.0.Final/jboss-logging-3.5.0.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/logmanager/jboss-logmanager-embedded/1.0.11/jboss-logmanager-embedded-1.0.11.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/logging/jboss-logging-annotations/2.2.1.Final/jboss-logging-annotations-2.2.1.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/threads/jboss-threads/3.4.3.Final/jboss-threads-3.4.3.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/slf4j/slf4j-jboss-logmanager/1.2.0.Final/slf4j-jboss-logmanager-1.2.0.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/graalvm/sdk/graal-sdk/22.3.0/graal-sdk-22.3.0.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/wildfly/common/wildfly-common/1.5.4.Final-format-001/wildfly-common-1.5.4.Final-format-001.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-bootstrap-runner/2.16.5.Final/quarkus-bootstrap-runner-2.16.5.Final.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-io/1.13.2/smallrye-common-io-1.13.2.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/github/crac/org-crac/0.1.3/org-crac-0.1.3.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-fs-util/0.0.9/quarkus-fs-util-0.0.9.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/com/github/ben-manes/caffeine/caffeine/3.1.1/caffeine-3.1.1.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/com/google/errorprone/error_prone_annotations/2.14.0/error_prone_annotations-2.14.0.jar!/" />
+    </CLASSES>
+    <JAVADOC />
+    <SOURCES>
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-caffeine/2.16.5.Final/quarkus-caffeine-2.16.5.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-core/2.16.5.Final/quarkus-core-2.16.5.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/annotation/jakarta.annotation-api/1.3.5/jakarta.annotation-api-1.3.5-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/enterprise/jakarta.enterprise.cdi-api/2.0.2/jakarta.enterprise.cdi-api-2.0.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/el/jakarta.el-api/3.0.3/jakarta.el-api-3.0.3-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/interceptor/jakarta.interceptor-api/1.2.5/jakarta.interceptor-api-1.2.5-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/ejb/jakarta.ejb-api/3.2.6/jakarta.ejb-api-3.2.6-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/transaction/jakarta.transaction-api/1.3.2/jakarta.transaction-api-1.3.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/jakarta/inject/jakarta.inject-api/1.0/jakarta.inject-api-1.0-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-ide-launcher/2.16.5.Final/quarkus-ide-launcher-2.16.5.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-development-mode-spi/2.16.5.Final/quarkus-development-mode-spi-2.16.5.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/config/smallrye-config/2.13.3/smallrye-config-2.13.3-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/config/smallrye-config-core/2.13.3/smallrye-config-core-2.13.3-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/eclipse/microprofile/config/microprofile-config-api/2.0.1/microprofile-config-api-2.0.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-annotation/1.13.2/smallrye-common-annotation-1.13.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-expression/1.13.2/smallrye-common-expression-1.13.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-function/1.13.2/smallrye-common-function-1.13.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-constraint/1.13.2/smallrye-common-constraint-1.13.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-classloader/1.13.2/smallrye-common-classloader-1.13.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/ow2/asm/asm/9.4/asm-9.4-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/config/smallrye-config-common/2.13.3/smallrye-config-common-2.13.3-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/logging/jboss-logging/3.5.0.Final/jboss-logging-3.5.0.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/logmanager/jboss-logmanager-embedded/1.0.11/jboss-logmanager-embedded-1.0.11-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/logging/jboss-logging-annotations/2.2.1.Final/jboss-logging-annotations-2.2.1.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/threads/jboss-threads/3.4.3.Final/jboss-threads-3.4.3.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/slf4j/slf4j-api/1.7.36/slf4j-api-1.7.36-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/jboss/slf4j/slf4j-jboss-logmanager/1.2.0.Final/slf4j-jboss-logmanager-1.2.0.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/graalvm/sdk/graal-sdk/22.3.0/graal-sdk-22.3.0-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/org/wildfly/common/wildfly-common/1.5.4.Final-format-001/wildfly-common-1.5.4.Final-format-001-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-bootstrap-runner/2.16.5.Final/quarkus-bootstrap-runner-2.16.5.Final-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/smallrye/common/smallrye-common-io/1.13.2/smallrye-common-io-1.13.2-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/github/crac/org-crac/0.1.3/org-crac-0.1.3-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/io/quarkus/quarkus-fs-util/0.0.9/quarkus-fs-util-0.0.9-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/com/github/ben-manes/caffeine/caffeine/3.1.1/caffeine-3.1.1-sources.jar!/" />
+      <root url="jar://$MAVEN_REPOSITORY$/com/google/errorprone/error_prone_annotations/2.14.0/error_prone_annotations-2.14.0-sources.jar!/" />
+    </SOURCES>
+  </library>
+</component>
\ No newline at end of file

Redis.iml

@@ -27,5 +27,6 @@
       </library>
     </orderEntry>
     <orderEntry type="library" name="io.quarkus.junit5.mockito" level="project" />
+    <orderEntry type="library" name="io.quarkus.caffeine" level="project" />
   </component>
 </module>
\ No newline at end of file

src/storage/Cacheable.java

+package storage;
+
+public interface Cacheable<K, V> {
+    void save(K key, V value);
+    void save(K key, V value, Long expirationTime);
+    V get(K key);
+    void delete(K key);
+}

src/storage/CaffeineCachePolicy.java

+package storage;
+
+
+
+import com.github.benmanes.caffeine.cache.Cache;
+import com.github.benmanes.caffeine.cache.Caffeine;
+import com.github.benmanes.caffeine.cache.RemovalCause;
+
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Logger;
+
+public class CaffeineCachePolicy<K, V> implements CachePolicy<K, V> {
+    private final Cache<K, V> cache;
+    private static final Logger logger = Logger.getLogger(CaffeineCachePolicy.class.getName());
+
+    public CaffeineCachePolicy(int maxCapacity) {
+        this.cache = Caffeine.newBuilder()
+                .maximumSize(maxCapacity)
+                .expireAfterAccess(60, TimeUnit.MINUTES)
+                .evictionListener((K key, V value, RemovalCause cause) ->
+                        logger.info("Evicted key: " + key + ", Value: " + value + ", Reason: " + cause))
+                .build();
+    }
+
+    @Override
+    public void add(K key, V value) {
+        cache.put(key, value);
+    }
+
+    @Override
+    public V retrieve(K key) {
+        return cache.getIfPresent(key);
+    }
+
+    @Override
+    public void delete(K key) {
+        cache.invalidate(key);
+    }
+
+    @Override
+    public void runMaintenance() {
+        cache.cleanUp();
+    }
+}

src/storage/LRUCachePolicy.java

@@ -227,4 +227,4 @@ public class LRUCachePolicy<K, V> implements CachePolicy<K, V> {
             this.value = value;
         }
     }
-}
+}
\ No newline at end of file

src/storage/Storage.java

@@ -2,24 +2,22 @@ package storage;
 
 import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
-import java.util.logging.Logger;
 
 public class Storage {
     private final int capacity = 1000000;
-    private static final Logger logger = Logger.getLogger(Storage.class.getName());
     private final CachePolicy<String, String> storage;
     private final Map<String, Long> timeToExpiration = new ConcurrentHashMap<>(capacity);
     private final Map<String, Long> currentTimeForKey = new ConcurrentHashMap<>(capacity);
 
-    private Storage(int threshold) {
-        this.storage = new LRUCachePolicy<>(capacity, threshold);
+    private Storage() {
+        this.storage = new CaffeineCachePolicy<>(capacity);
         RdbFileReader<String, String> reader = new RdbFileReader<>();
         Map<String, Long> stringStringMap = reader.getKeysExpiration();
         this.timeToExpiration.putAll(stringStringMap);
     }
 
     private static final class StorageHolder {
-        private static final Storage instance = new Storage(800000);
+        private static final Storage instance = new Storage();
     }
 
     public static Storage getInstance() {
@@ -45,14 +43,6 @@ public class Storage {
     }
 
     private boolean isExpired(String key) {
-        if (timeToExpiration.containsKey(key) && !currentTimeForKey.containsKey(key)) {
-            long currentTime = System.currentTimeMillis();
-            long expirationTime = timeToExpiration.get(key);
-            if (currentTime > expirationTime) {
-                logger.info("Key expired: " + key);
-                return true;
-            }
-        }
         if (currentTimeForKey.containsKey(key)) {
             long currTime = System.currentTimeMillis();
             long expirationTime = timeToExpiration.get(key);