dev

pom.xml

@@ -39,6 +39,14 @@
     </properties>
 
     <dependencies>
+
+        <!-- Cache like map -->
+        <dependency>
+            <groupId>net.jodah</groupId>
+            <artifactId>expiringmap</artifactId>
+            <version>0.5.10</version>
+        </dependency>
+
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-csv</artifactId>

src/main/java/com/its/utils/Uuid.java

@@ -0,0 +1,15 @@
+package com.its.utils;
+
+import java.util.UUID;
+
+public class Uuid {
+
+    private Uuid() {
+        throw new UnsupportedOperationException("Cannot instantiate a Util class");
+    }
+
+    public static String generate() {
+        return UUID.randomUUID().toString();
+    }
+
+}

src/test/java/com/its/op/ItsOpServerApplicationTests.java

@@ -3,6 +3,7 @@ package com.its.op;
 import com.its.utils.AES256Util;
 import com.its.utils.SHA256Util;
 import lombok.extern.slf4j.Slf4j;
+import net.jodah.expiringmap.ExpiringMap;
 import org.jasypt.encryption.pbe.PooledPBEStringEncryptor;
 import org.jasypt.encryption.pbe.config.SimpleStringPBEConfig;
 import org.jasypt.salt.StringFixedSaltGenerator;
@@ -11,8 +12,11 @@ import org.springframework.test.context.ActiveProfiles;
 
 import java.sql.Connection;
 import java.sql.DriverManager;
+import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
+import java.util.Date;
+import java.util.concurrent.TimeUnit;
 
 @Slf4j
 //@SpringBootTest
@@ -21,6 +25,21 @@ public class ItsOpServerApplicationTests {
 //    @Autowired
 //    DefaultListableBeanFactory bf;
 
+    @Test
+    void ttl() {
+        ExpiringMap<String, String> tokenEventMap;
+        tokenEventMap = ExpiringMap.builder()
+                .variableExpiration()
+                .maxSize(1000)
+                .build();
+        Date date = new Date();
+        long secondAtExpiry = date.toInstant().getEpochSecond();
+        long secondAtLogout = Instant.now().getEpochSecond();
+        long ttl = Math.max(0, secondAtExpiry - secondAtLogout);
+        log.error("{}, {}, {}", secondAtExpiry, secondAtLogout, ttl);
+        tokenEventMap.put("TEST", "data", ttl, TimeUnit.SECONDS);
+        log.error("{}", tokenEventMap);
+    }
     @Test
     void encrypt() {
 //        for(String n : bf.getBeanDefinitionNames()){