University Transcript from Calcutta University – Feb 2016

One might require University transcripts for a number of reasons. Transcripts are required for visa process (Canada/ Australia etc.), applying to US universities etc. The usual process is to contact the University and they should be able to help with the exact steps.

The process below is for CU (Calcutta University) alumni as of Feb 2016. This also assumes that you are available and have enough time to visit the Transcript department in-person on 2 separate days.

For people who do not/can not visit in-person, you’ll be required to authorize someone to submit the application and collect the Transcripts on your behalf.

Prerequisites:

  1. Make sure you have at least 30 days in hand.
  2. Go through the following document: CU Transcript Instructions [Don’t waste your time by calling the listed phone numbers (numbers are either dysfunctional or there’s no one to pick up) or emailing ( emails are non-deliverable to both the addresses ).
  3. Download the form, print and fill it up (preferably with blue ink to make your entries more visible).
  4. Photocopies of Registration Certificate, All Marksheets (all semesters/years).
  5. Registration Certificate and All Marksheets (Original).
  6. Cash ( INR 200 per transcript ).
  7. A pen.
  8. Willingness to be present in-person to apply on one day (1 – 1.30 hrs depending on how busy the department is on that particular day) AND on a second day to collect the transcripts. (Sorry, they don’t have an online system even in 2016)

Location:

Transcript department is located on the 4th Floor of Darbhanga Building (inside Calcutta University Main Campus ). The nearest Metro station is Central – a 5-minute walk.

Hours:

The Transcript department is open from 11 am to 1.30 pm on weekdays.

Special Note:

1. Even though the form asks for a Demand Draft (DD) to be submitted along with the application, it’s NOT required.

Yeah! I learned it the hard way. I wasted about an hour at a bank getting the DD prepared and when I arrived at the CU Transcript department, they said CASH is preferred.

2. You need not fill up the section that requires University names and locations to which the transcripts are to be sent (assuming you will be collecting it yourself).

Application Process

  1. Ensure that you are carrying the items mentioned in the Prerequisites section.
  2. Head straight for the CASH section (ask anyone for directions) once you enter the CU Main Campus on College Street. Get a CHALLAN for INR 1/- (One rupee).
  3. Darbhanga building is bang opposite the building that has the CASH section/department. Proceed to the 4th Floor (there are elevators available – although they are located in a very non-descript area of the ground floor. Ask someone if you are not able to find them).
  4. Follow the directions to the ‘Transcript section’ – as of today, it has been relocated to the back side of the 4th Floor.
  5. Once you reach the Transcript section, you’ll be asked (usually) for the purpose of your visit. If not, state politely the purpose of your visit.
  6. You’ll then be asked to submit the documents. You may be asked for the originals (I wasn’t – but it’s better to carry them in any case).
  7. You’ll be asked to fill up the CHALLAN (In case you forgot step 2 / didn’t bring the CHALLAN, you will usually be provided one and asked to provide a blank one once you have submitted the cash at the CASH section).
  8. Next, if the documents are sufficient, the person will sign and state “Please accept” on the CHALLAN which you’ll be required to take to the CASH section and pay the required amount.
  9. Visit the CASH section and pay the amount. (Remember to take a Blank CHALLAN if you missed step 2 ). If you are paying in denominations of INR 500 or more, be prepared to enter denomination, note number, your phone number in a separate register which will be provided at the CASH counter.
  10. The Cashier will hand you 2 pieces of paper with the particulars of payment.
  11. Head back to the Transcript department and hand back one part of the particulars and Blank CHALLAN (if you missed step 2). Keep the other part for your reference which will be required on the day of collecting the transcripts.
  12. You will be asked to return at a later date (usually 3 weeks from date of submission) to collect the Transcripts.

 

That’s it – you’re done! Pretty hassle free if you ask me.

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Standalone client to send JMS messages to a JBOSS queue via JNDI

Pretty trivial exercise. But needs a few steps and unless you know exactly what you are doing, it might cause a lot of pain.

Firstly, you’d need the JMS connection factory and queues configured in the local JBoss. This is pretty easy to do.

A client jar is required for the InitialContext located at <JBOSS-HOME>\bin\client\jboss-client.jar

Secondly, you’d need something of the following:

import java.io.File;
import java.io.IOException;
import java.util.Collection;
import java.util.Hashtable;

import javax.jms.Connection;
import javax.jms.ConnectionFactory;
import javax.jms.JMSException;
import javax.jms.MessageProducer;
import javax.jms.Queue;
import javax.jms.Session;
import javax.jms.TextMessage;
import javax.naming.InitialContext;
import javax.naming.NamingException;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.DirectoryFileFilter;
import org.apache.commons.io.filefilter.WildcardFileFilter;

public class LocalJBOssMQSender {

    /**
     * @param args
     */
    public static void main(String[] args) {

        try {

            Hashtable< String, String > envProps = new Hashtable();
            envProps.put("java.naming.factory.initial", "org.jboss.naming.remote.client.InitialContextFactory");
            envProps.put("java.naming.provider.url", "remote://127.0.0.1:4447");
            envProps.put("java.naming.security.principal", "xxxx");
            envProps.put("java.naming.security.credentials", "xxxxxx");

            InitialContext ic = new InitialContext( envProps );

            ConnectionFactory cf = (ConnectionFactory)ic.lookup("jms/<connection factory name>");
            Queue inboundQueue= (Queue)ic.lookup("jms/queue/<QueueName>");

            Connection connection = cf.createConnection();

            Session session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
            MessageProducer producer = session.createProducer(inboundQueue);

            //pick up all .xml files in a given directory and send them as messages to the queue.
             Collection<File> files = FileUtils.listFiles(new File("C:\\temp\\test"), 
                        new WildcardFileFilter("*.xml"), DirectoryFileFilter.DIRECTORY);

                for(File file : files){

                    System.out.println(file.getName());

                    String messageStr = FileUtils.readFileToString(file);
                    TextMessage message = session.createTextMessage(messageStr);

                    //message.setStringProperty("messageType", "Presentation");
                    // Start the connection
                    connection.start();

                    producer.send(message);
                    System.out.println("Sent message:\\n" + message);
            }

                producer.close();
                session.close();
                connection.close();

        } catch (NamingException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (JMSException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}

Entrust issue on IBM WAS 8.0.5

My most recent challenge:

A perfectly working piece of code running on JBoss 7 that uses encryption using Entrust , fails with the following on IBM WAS 8.0.5 –

Caused by: com.entrust.toolkit.exceptions.PKCS7Exception: internal error at com.entrust.toolkit.b.run(Unknown Source)at java.lang.Thread.run(Thread.java:772) Caused by: java.lang.RuntimeException: Error from EncodeListener: Unable to calculate encrypted digest: RSA signature failed to initialize for signing: Caught an attempt to access key material in a confined key. at iaik.asn1.DerCoder.encode(Unknown Source) at iaik.asn1.DerCoder.encodeTo(Unknown Source) at iaik.asn1.DerCoder.encodeTo(Unknown Source) at iaik.pkcs.pkcs7.ContentInfoStream.writeTo(Unknown Source)

So, I started out by trying to go through the usual route. Googling didn’t help – nor could I understand what the exception was trying to say.

We built a standalone servlet , deployed on a local WAS trial version and it worked. The local WAS was version 8.5. Deployed the servlet on WAS 8.0.5 – same error.  The only difference was that the cert files were bundled in a JAR file instead of being in the app’s WEB-INF\classes folder.

Changed that in the app, and it began to work !

Or so i thought. The actual issue was finally found to be a completely different. It had to do with how our apps were packaged. In the actual environment we had 2 web apps having the same common utility jar being bundled individually with the web apps. However, this common piece of encryption util was @Autowired – Spring’s way of telling that the component will be ready to use as soon as the apps were deployed. Now, this auto-wiring was happening for the other web app and once loaded by the classloader, this wasn’t available for loading again when it was actually required by the other app. Hence the issue. We changed the bean definition to load laziy in the context file with lazy-load=”true” and that finally solved the issue.

Sidenote: we raised this issue with IBM’s EMR – and the response was that we were using a third party library not supported by IBM ! Take that IBM – you don’t even know what works in your app server and what doesn’t !!

Installing Chrome on Fedora 18

Installed Fedora 18 on a VirtualBox VM on my Mac and it works great. I installed the KDE spin. Although am liking the interface, I don’t like Konquerer much. Chrome is insanely fast even inside a VM. So, I decided to install Chrome.

Note: I installed a Fedora 64 bit, so the steps here are for 64 bit Chrome

It’s really easy.

1. Add Google YUM repository details (used for checksum etc.)

Create or edit the file /etc/yum.repos.d/google-chrome.repo and add the following lines:

[google-chrome]
name=google-chrome
baseurl=http://dl.google.com/linux/chrome/rpm/stable/x86_64
enabled=1
gpgcheck=1

2. Execute the following command as root

yum install google-chrome-stable

You should now have Chrome as an option in Applications -> Internet.

But, here comes a surprise – Chrome cannot be run as root by default. So it won’t work unless you do the following.

1- open Konsole Terminal
2- type

cd /opt/google/chrome/
hexedit chrome

(if you dont have hexedit or  it says hexedit command not found, just do a

yum install hexedit

)

3- you will see hex editor program press Tab to switch to ascii
4-press ctrl+s to search for “geteuid” and modify it to “getppid”
5- ctrl+X to exit then press y for saving changes

Original solution at: http://www.backtrack-linux.org/forums/showthread.php?t=43560

Thats it ! You should now be able to run your favorite Chrome as root 🙂

Ubuntu 12.10 networking fails after installing on one Oracle VM

This is more of a note to self. I had a Ubuntu 12.10 running on an Oracle VirtualBox VM (4.16). Now, this was running to too slow and it said an update had been released for VirtualBox(4.18). I uninstalled the previous version of VirtualBox while keeping the Ubuntu VM disk intact.

Now, after installing VirtualBox 4.18, when I used the Ubuntu VDI, I could no longer access the internet. Something must have gone horribly wrong. Then, I came across the following (excerpt from http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1032790):

  1. In the Ubuntu guest, open a command prompt. For more information, see Opening a command or shell prompt (1003892).
  2. As root, open the file /etc/udev/rules.d/70-persistent-net.rules in a text editor:

    sudo vim /etc/udev/rules.d/70-persistent-net.rules

  3. The file consists of a line for each udev rule, associating MAC addresses with ethN interface names. For example:

    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:fb:d5:1e", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"
    SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:fb:d5:1c", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"

  4. Identify the old and new interfaces by their MAC address in the ATTR{address}=="" field. For example:

    ATTR{address}=="00:0c:29:fb:d5:1c" ... NAME="eth0"  # old
    ATTR{address}=="00:0c:29:fb:d5:1e" ... NAME="eth1"  # new

  5. Copy the ethN name from the old interface to the new interface line. For example:

    ATTR{address}=="00:0c:29:fb:d5:1c" ... NAME="eth0"  # old
    ATTR{address}=="00:0c:29:fb:d5:1e" ... NAME="eth0"  # new

  6. Delete the line for the old ethN interface. For example:

    ATTR{address}=="00:0c:29:fb:d5:1e" ... NAME="eth0"  # new

  7. Save the udev configuration file.
  8. Reboot the Ubuntu virtual machine.
When the system is rebooted, the network configuration for the previous network interface is applied to the new interface.
Note: If you are unable to reboot the virtual machine, you can manually restart the networking service using this command:
service networking restart
If this command fails with an unknown instance error, run this command:
/etc/init.d/networking restart
It is proof that this works ’cause am putting up this post from within the VM 🙂

Getting started with Hibernate 4 and Maven

For all those folks who are trying to find out how to use Hibernate 4 and Maven here goes:

Check out the attached source code. The main changes are in the pom.xml and in the HibernateUtil class. As you might already know, the earlier Configuration.buildSessionFactory is deprecated. So, one must use the  following to configure a SessionFactory object:

private static SessionFactory SESSIONFACTORY = null;
private static ServiceRegistry SERVICEREGISTRY = null;
try{
Configuration configuration = new Configuration();
configuration.configure(“hibernate.cfg.xml”);SERVICEREGISTRY = new ServiceRegistryBuilder().applySettings(configuration.getProperties()).buildServiceRegistry();
SESSIONFACTORY = configuration.buildSessionFactory(SERVICEREGISTRY);}catch (Exception e) {
System.err.println(“Initial SessionFactory creation failed.” + e);
throw new ExceptionInInitializerError(e);
}

Other than that, its pretty straight forward if you have the correct Maven installation and the pom.xml 🙂

Here’s the code. Just download and build using maven. Its an Eclipse project – so you can Import As -> Existing Maven Project provided you have M2E plugin installed: (Use GitHub to access the code)

https://github.com/trishulpani/Hibernate4

SpringMVC-Hibernate-Maven-Glassfish-Netbeans sample project

This post is a slightly modified version of http://viralpatel.net/blogs/2010/11/spring3-mvc-hibernate-maven-tutorial-eclipse-example.html

(For explanations, see the original blog) that uses the following tech stack:

Spring MVC (3.0.2.RELEASE), Hibernate (3.6.7.Final), JEE 6.0, JPA 2.0 (2.0-cr-1) and Spring (3.0.2.RELEASE).

Functionally both are same. This just works with the said tech stack as I have made the correct entries to work with Maven2.

The main modifications boiled down to the Project’s pom.xml and the fact that I had to add @Transactional to the service methods – otherwise I was getting runtime exception that said there was no active transaction.

Download the project and MySQL script files to get started. The application, once built (import to Netbeans and Build) – can be deployed to Glassfish.:

https://docs.google.com/open?id=0B6uhVH07AfMPZmZkYzA0MmItZjAzYS00MjliLTgxMzQtYmY3MTRiOGY1Njlh

MySQL script is here: https://docs.google.com/open?id=0B6uhVH07AfMPMGQ2MmQzYjYtOTMyNi00MmVjLWFkZDQtN2Q1MDdjNTJhMWFm