Partitioner Refactor (#2434)

* Refactor Batch

* Refactor Batch

spring-batch/src/main/java/org/baeldung/batch/App.java

@@ -0,0 +1,32 @@
+package org.baeldung.batch;
+
+import org.springframework.batch.core.Job;
+import org.springframework.batch.core.JobExecution;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.launch.JobLauncher;
+import org.springframework.context.annotation.AnnotationConfigApplicationContext;
+
+public class App {
+    public static void main(final String[] args) {
+        // Spring Java config
+        final AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
+        context.register(SpringConfig.class);
+        context.register(SpringBatchConfig.class);
+        context.refresh();
+
+        // Spring xml config
+        // ApplicationContext context = new ClassPathXmlApplicationContext("spring-batch.xml");
+
+        final JobLauncher jobLauncher = (JobLauncher) context.getBean("jobLauncher");
+        final Job job = (Job) context.getBean("firstBatchJob");
+        System.out.println("Starting the batch job");
+        try {
+            final JobExecution execution = jobLauncher.run(job, new JobParameters());
+            System.out.println("Job Status : " + execution.getStatus());
+            System.out.println("Job succeeded");
+        } catch (final Exception e) {
+            e.printStackTrace();
+            System.out.println("Job failed");
+        }
+    }
+}