Added SimpleCheckpoint utility

Author: fugerit79

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- SimpleCheckpoint utility
+
 ## [8.6.0] - 2024-05-09
 
 ### Added

fj-core/src/main/java/org/fugerit/java/core/util/checkpoint/SimpleCheckpoint.java

@@ -0,0 +1,28 @@
+package org.fugerit.java.core.util.checkpoint;
+
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+
+@Slf4j
+public class SimpleCheckpoint {
+
+    @Getter
+    private long baseTime;
+
+    public SimpleCheckpoint() {
+        this( System.currentTimeMillis() );
+    }
+
+    public SimpleCheckpoint(long baseTime) {
+        this.baseTime = baseTime;
+    }
+
+    public long getDiffMillis() {
+        return System.currentTimeMillis() - this.getBaseTime();
+    }
+
+    public String getFormatTimeDiffMillis() {
+        return CheckpointUtils.formatTimeDiffMillis( this.getBaseTime(), System.currentTimeMillis() );
+    }
+
+}

fj-core/src/test/java/test/org/fugerit/java/core/util/checkpoint/TestSimpleCheckpoint.java

@@ -0,0 +1,17 @@
+package test.org.fugerit.java.core.util.checkpoint;
+
+import lombok.extern.slf4j.Slf4j;
+import org.fugerit.java.core.util.checkpoint.SimpleCheckpoint;
+import org.junit.Test;
+
+@Slf4j
+public class TestSimpleCheckpoint {
+
+    @Test
+    public void testCheckpoint() {
+        SimpleCheckpoint checkpoint = new SimpleCheckpoint();
+        log.info( "testCheckpoint 1 {}ms", checkpoint.getDiffMillis() );
+        log.info( "testCheckpoint 2 {}ms", checkpoint.getFormatTimeDiffMillis() );
+    }
+
+}