Java Spring Batch: Running a Spring Batch Job

gistfile1.java

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.core.JobExecutionException;
import org.springframework.batch.core.JobParameters;
import org.springframework.batch.core.JobParametersBuilder;
import org.springframework.batch.core.launch.JobLauncher;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Service;

@Service
public class PwsJobLauncher {
    protected final Log log = LogFactory.getLog(getClass());
                
    @Autowired 
    @Qualifier("pwsDailyJob")
    private Job job;
    
    @Autowired
    private JobLauncher jobLauncher;
   
    JobParameters jobParameters;
    
    public void setJobLauncher(JobLauncher jobLauncher) {
        this.jobLauncher = jobLauncher;
    }

    public JobExecution  execute(String orderDate, String test) throws JobExecutionException,ParseException{    	        
		if(orderDate==null || "".compareTo(orderDate.trim())==0)
		{
			throw new JobExecutionException("can not run the job as Date is missing or invalid");
		}

        JobParametersBuilder jobParametersbuilder = new JobParametersBuilder().
        addDate("orderDate", getDate(orderDate)); //dd-MM-yyyy                
        if(!(test==null || "".compareTo(test.trim())==0))
        	jobParametersbuilder.addString("test", test);        
        jobParameters = jobParametersbuilder.toJobParameters();
        log.info("Launching Job '"+job.getName()+"' with Parameters: "+jobParameters);
        // Launch the job        
        JobExecution jobExecution = jobLauncher.run(job, jobParameters);       
        return jobExecution;
    }
    
    private  Date getDate(String dateStr) throws ParseException
    {
    	  DateFormat df = new SimpleDateFormat("dd-MM-yyyy");    	       
          Date today = df.parse(dateStr);            
          return today;                  	
    }
  
}