feat : adds sample job scheduler

.vscode/launch.json

@@ -103,6 +103,16 @@
             "projectName": "boot-graphql-webflux",
             "args": "",
             "envFile": "${workspaceFolder}/.env"
+        },
+        {
+            "type": "java",
+            "name": "Spring Boot-Application<boot-shedlock-sample>",
+            "request": "launch",
+            "cwd": "${workspaceFolder}",
+            "mainClass": "com.learning.shedlock.Application",
+            "projectName": "boot-shedlock-sample",
+            "args": "--spring.profiles.active=local",
+            "envFile": "${workspaceFolder}/.env"
         }
     ]
 }

scheduler/boot-shedlock-sample/src/main/java/com/learning/shedlock/config/Initializer.java

@@ -1,19 +1,18 @@
 package com.learning.shedlock.config;
 
-import lombok.RequiredArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
-import org.springframework.boot.CommandLineRunner;
+import net.javacrumbs.shedlock.spring.annotation.SchedulerLock;
+import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 
 @Component
-@RequiredArgsConstructor
 @Slf4j
-public class Initializer implements CommandLineRunner {
+public class Initializer {
 
-    private final ApplicationProperties properties;
-
-    @Override
-    public void run(String... args) {
-        log.info("Running Initializer.....");
+    @Scheduled(cron = "0 */1 * * * *")
+    @SchedulerLock(name = "lockedTask", lockAtMostFor = "PT5S", lockAtLeastFor = "PT2S")
+    public void lockedTask() {
+        // code for task to be performed
+        log.info("Scheduler Job triggered");
     }
 }

scheduler/boot-shedlock-sample/src/main/resources/db/changelog/migration/01-init.sql

@@ -1,4 +1,4 @@
-CREATE TABLE lockProvider (
+CREATE TABLE shedlock (
  name VARCHAR(64),
  lock_until TIMESTAMP(3) NULL,
  locked_at TIMESTAMP(3) NULL,