Redirect HTTP to HTTPS using Servlet Filter

Method - I
1. Write a filter to redirect from http to https

package com.sample.servlet;
 
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
public class HTTPSFilter implements Filter {
 
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws java.io.IOException, ServletException {
 
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
 
String uri = req.getRequestURI();
String getProtocol = req.getScheme();
String getDomain = req.getServerName();
String getPort = Integer.toString(req.getServerPort());
 
if (getProtocol.toLowerCase().equals("http")) {
 
// Set response content type
response.setContentType("text/html");
 
// New location to be redirected
String httpsPath = "https" + "://" + getDomain + ":" + getPort
+ uri;
 
String site = new String(httpsPath);
res.setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
res.setHeader("Location", site);
}
 
// Pass request back down the filter chain
chain.doFilter(req, res);
 
}
 
@Override
public void init(FilterConfig arg0) throws ServletException {
// TODO Auto-generated method stub
 
}
 
@Override
public void destroy() {
// TODO Auto-generated method stub
 
}
 
}

2. Compile above filter and create following entries in web.xml

HTTPS
com.sample.servlet.HTTPSFilter


HTTPS
/*

Method - II
1. Add the below snippet to your Web.xml

SessionTest
/*


CONFIDENTIAL

I preferably use Method - II , if not work's for some servers like Trifork 4.1.3.6 go for Method -I . I hope this article will helps you.

StaxEventItemWriter writes extra end document tag

I using spring batch for reading data from db and writing to XML file i am choosed the "StaxEventItemWriter" writes. it generating the xml file fine but with extra end document tag at the end. You can find the bug Here, due to this my batch process was failed to read the same XML file. I surf the internet and i found the one of the solution and  implemented the below. Now my XML files are generated without the extra end document tag. Now all my batches are working fine.

Solution:

import javax.xml.stream.XMLEventWriter;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;

import org.springframework.batch.item.xml.StaxEventItemWriter;

/**
 * @author sunilkumar.gutti
 * 
 */
@SuppressWarnings("rawtypes")
public class ShipmentStaxEventItemWriter extends StaxEventItemWriter {
    @Override
    protected void endDocument(XMLEventWriter writer) throws XMLStreamException {
        XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
        if (outputFactory.isPropertySupported("com.ctc.wstx.autoCloseElements")) {
            outputFactory.setProperty("com.ctc.wstx.autoCloseElements", false);
        }
    }

}

Spring batch restrict single instance of job only

I have one spring batch job which can be kicked of by rest URL. I want to make sure only one job instance is allowed to run. and if another instance already running then don't start another. even if the parameters are different.
I searched and found nothing out of box solution. thinking of extending SimpleJobLauncher. to check if any instance of the job running or not.

Answers

You could try to intercept the job execution, implementing the JobExecutionListener interface:

public class MyJobExecutionListener extends JobExecutionListener {

//active JobExecution, used as a lock.
private JobExecution _active;

public void beforeJob(JobExecution jobExecution) {
    //create a lock
    synchronized(jobExecution) {
        if(_active!=null && _active.isRunning()) {
            jobExecution.stop();
        } else {
            _active=jobExecution;
        }
    }
}

public void afterJob(JobExecution jobExecution) {
      //release the lock
      synchronized(jobExecution) {
          if(jobExecution==_active) {
            _active=null; 
          }
      }
}

}
And then, inject to the Job definition:

<job id="myJobConfig">
    <listeners>
        <listener ref="myListener"/>
    </listeners>
</job>

Or, in response to REST URL, check using JobExplorer if your job is running using job's specifics business rules

I solved this by creating an JobExecutionListner and with the help of JobExplorer I checked if any other instance is running if running then stop current job.I created listener so that it can be plugged in to any job that requires this kind of scenario.

Set<JobExecution> jobExecutions = ((SimpleJobExplorer) jobExplorer.getObject()).findRunningJobExecutions(jobExecution.getJobInstance().getJobName());
            if(jobExecutions.size()>1){
                Long currentTime = (new Date()).getTime();
                for(JobExecution execution : jobExecutions ){
                    if(execution.getJobInstance().getId().compareTo(jobExecution.getJobInstance().getId())!=0 && (currentTime - execution.getStartTime().getTime()) <lockOverideTime){
                        jobExecution.stop();
                        throw new IllegalStateException("Another instance of the job running job name : " +jobExecution.getJobInstance().getJobName() );

                    }
                }

            }

source : here

[Solved] :Spring Batch Stax XML reading job is not ending when out of input

Spring Batch Stax XML reading job is not ending when out of input

I'm using Spring Batch to set up a job that will process a potentially very large XML file. I think I've set it up appropriately, but at runtime I'm finding that the job runs, processes its input, and then just hangs in an executing state (I can confirm by viewing the JobExecution's status in the JobRepository).
I've read through the Batch documentation several times but I don't see any obvious "make the job stop when out of input" configuration that I'm missing.
Here's the relevant portion of my application context:
<job id="pickupDataExtractionJob" xmlns="http://www.springframework.org/schema/batch">
        <step id="read" next="write">
            <tasklet>
                <chunk reader="jdbcItemReader" writer="xmlItemWriter" commit-interval="5" retry-limit="3" >
                    <retryable-exception-classes>
                        <include class="java.lang.Exception"/>
                        <include class="java.sql.SQLException"/>
                        <include class="org.springframework.dao.DeadlockLoserDataAccessException"/>
                    </retryable-exception-classes>
                </chunk>
            </tasklet>
        </step>
        <step id="write" next="rename">
            <tasklet>
                <chunk reader="xmlItemReader" writer="jdbcItemWriter" commit-interval="5"  retry-limit="3" >
                    <retryable-exception-classes>
                        <include class="java.io.FileNotFoundException"/>                       
                        <include class="java.sql.SQLException"/>
                        <include class="org.springframework.dao.DeadlockLoserDataAccessException"/>
                    </retryable-exception-classes>
                </chunk>
            </tasklet>
        </step>
        <step id="rename" next="deleteDir">
            <tasklet ref="renameTaskLet" />
        </step>
        <!-- <step id="email" next="deleteDir">
            <tasklet ref="emailTaskLet" />
        </step> -->
        <step id="deleteDir">
            <tasklet ref="fileDeletingTasklet" />
        </step>
    <listeners>
        <listener ref="processShutdownListener"></listener>
    </listeners> 
    </job>
    <bean id="renameTaskLet"
        class="com.kewill.bluedart.pos.batch.tasklet.SimpleRenameFileTaskletStep" />
    <bean id="emailTaskLet" class="com.kewill.bluedart.pos.batch.tasklet.SendEMailTasklet" />
    <bean id="fileDeletingTasklet" class="com.kewill.bluedart.pos.batch.tasklet.FileDeletingTasklet">
        <property name="directory" value="file:${batch.path}" />
    </bean>