Samba G's Blog

Performance testing with Postman labs using newman

2020-01-25T01:49:00.005+05:30

Install NPM

Install NPM in case if you do not have it already - from this URL: https://www.npmjs.com/get-npm

Install newman

Install newman from postman labs using the following command (more details at https://www.npmjs.com/get-npm)

npm install -g newman

Install HTML components for newman

npm install -g newman-reporter-html

Run newman cli to generate a summary report

Create a collection in postman
Create environments in postman (optional, but recommended)
Export collection as JSON & environment as JSON.
Run the following command to generate HTML report.

newman run myPrj.postman_collection.json -e Mule4_Dev.postman_env.json -n 1000 -r html

Mulesoft 3.7.3, setting different values for file, filename in http post multipart/form-data

2019-05-17T01:35:00.000+05:30

Mule attachment component is setting the same value for both name and filename.

To work around this - we have to depend on custom code.
Here is the groovy script included after reading file content with Mule requester.

How to increase speed of a Video when settings are disabled.

2018-10-12T02:25:00.001+05:30

Open browser's developer options.
Run the following command at cosole.

document.querySelector('video').playbackRate = 1.25;

Search for Class in all Jars in the Directory.

2018-08-07T20:16:00.000+05:30

Following command does grep (search) for the class by listing all jar content using $JAVA_HOME/bin/jar in the each jar file at the current folder.

for i in *.jar; do jar -tvf "$i" | grep -Hsi <> && echo "$i"; done

JavaScript undefined vs null

2018-05-27T05:37:00.000+05:30

undefined - when a variable defined but not initialized. Or when a variable tried to use in code which was never defined.
null - when a variable value specifically assigned to null ( a null value ).

Fuction Overloading in JavaScript - Does not work.

2018-05-27T04:50:00.000+05:30

When a function written in JavaScript with the same name (even with different number of parameters), it is treated as "re defining it". That results - old definition is not longer available.

Why ?

JavaScript designers thought to go easy on developers.
JavaScript engine forgive the user and assume the things ( often this is a problem for the programmers who came from experience on strongly typed languages such as c,c++)

Java Script - null - typeof

2018-05-27T04:37:00.000+05:30

It was a mistake in early releases of javascript that typeof(null) told as Object.
Later releases could not fix it to not to break the code which was already there in thousands of websites.
So, a weired thing to remember while writing java script is -

typeof(null) is Object.

Sublime Text - Refreshing Text Editor

2016-04-14T21:18:00.000+05:30

I am sure many of you might have already migrated to this Text Editor, if not I would recommend to give a try.
It is fast, fluid and beautiful. It has many more plug-ins syntax highlighters for almost all languages.
There are tips and tricks mentioned in the following URL for faster editing.

Enjoy new editor :)

https://www.sublimetext.com/

Java DeCompiler - Luyten

2015-03-06T22:11:00.001+05:30

I have been using Luyten opensouce de-compiler.
One of the best feature I liked is, it is opening all possible types of files (eg: xsds, jca, bpel files) inside a jar file.

You can download it from - http://deathmarine.github.io/Luyten/

Missing Indian filtered coffee at USA ?

2013-02-13T20:53:00.000+05:30

Coffee..!!! :)

This is the very first thing that I badly missed after my family and friends when I move to USA. As a coffee lover, you can understand what I am talking :)

My roommate was few months senior (at USA) to me, he is also a moderate lover.. gave me some relief by showing Starbucks cappuccino (with extra shot and extra hot).

I continued and learned drinking regular coffee available here. I found that is definitely a good alternative.

BUT, the coffee that I drank all these years..? hmm.. I am still missing it.

So, I searched a lot in different stores if I can get a simple faster way to make a filter coffee.

Then I found French Press (http://en.wikipedia.org/wiki/French_press), a simple coffee brewing device available in most of the stores. I bought a coffee power from an Indian store.

Then a "filtered coffee" :) was made in 5 minutes.

Procedure -

1) Boil plain water (1.5 cups) in a bowl

2) Take the filter out of bottom part

3) Put 2 spoons of coffee powder in French press bottom part

4) Add bolded water, stir it with a spoon

5) Wait for 2 - 3 minutes

6) Put filter from top, press to bottom gently.

7) Do not take out the filter, but you can pour black coffee out of it.

8) Add some hot milk, sugar (or sweetener) to make a coffee that we can get back our home :)

Enjoy.. :)

500px

2013-01-22T07:43:00.000+05:30

I have started placing my photographs for sale, of-course nobody purchased it till date :), but I got to know that I am not an odd man out among ‘the’ photographers. Photographers like my images, I feel really good about it. Also, I can clearly understand the technical details that the real photographers talking about. I am really happy on this regard.

Here is my online gallery –

http://500px.com/SambaPhotography/store

Happy Ganesh Chaturthi

2012-09-19T07:22:00.002+05:30

I wish you a happy vinayaka chaturthi everybody.

It was second most favorite festival in childhood days (First one is Diwali, festival of lights). It was really fun to make idol with clay, have a bicycle ride with school mates to bring “patri” (collection of leaves, flowers for puja). I recollect all my school mates, childhood friends especially this day :)

Virginia Safari Park

2012-06-13T19:40:00.001+05:30

One of the nice places that I visited in USA, I loved the time spending there. We can spend all the day. They allow us to feed food to the animals that are purchased over there. All the animals are friendly, colorful birds (parrots) are very friendly, they are resting on your hands if you feed them :)
Last but not least, its a good feast for photography lovers.

I've placed some of few good photos that I've clicked in Safari, Please click here to see all the images (please check the captions - scroll down to the bottom).

I am using my Canon Rebel XT.
I've used 55-250 mm lens for this shoot.

Here the link for Virginia Safari Park. http://www.virginiasafaripark.com

Macro Challenge.

2012-05-17T19:04:00.000+05:30

I'm participating in a macro challenge with a wasp's macro / close-up and portrait. I'm feeling good that the image by me is not very bad among other participant's images.

Please click on the image to view more details about challenge.

Solaris / Unix / Linux - Deleting files modified older than 10 minutes.

2012-04-25T23:11:00.000+05:30

1) Create a file with touch command with 10 minutes ago timestamp
   Step 1) Get current time in the timestamp in YYmmddHHMI format.
   Step 2) Calculate old time stamp with it (10 minutes ago)
   Step 3) Create file with the timestamp calculated in the step above.
2) Run exec rm as part of find command with negate (!) -newfile option with the use of the file created in step 1.3
3) remove temp file created in 1.3
Total Script..

 
currentDateTimestamp=`date '+%Y%m%d%H%M'`
oldTimeStamp=`expr $currentDateTimestamp - 10`
touch -t $oldTimeStamp oldfile.tmp 
find /filepath/fileformat ! -newer oldfile.tmp -exec rm {} \;
rm oldfile.tmp

Shell script to send an email

2012-04-05T05:30:00.000+05:30

Here is a simple shell script (Unix / Linux / Solaris) to send email by specifying "from" mail id and "to" mail id.

 #sendwilyemail to, from, subject email body
TO=$1
FROM=$2
SUBJECT=$3
EMAIL_BODY=$4

echo $EMAIL_BODY | mailx -r $FROM -s $SUBJECT $TO

Welcome to Spring 2012

2012-03-22T02:00:00.000+05:30

Finally, I clicked what I had in mind with 100% manual mode with 800 ISO, 1/25f and max possible aperture with the lens (55-250) 5.0. Used default flash came with my Canon Rebel XT :)

Moon was captured though flower bud a week ago. My settings in full manual mode was 200 ISO, 1/60f and 5.0 aperture with same lens. This was my another favourite click.

Welcome to Spring 2012.

I've Installed Fedora 16

2012-02-06T05:29:00.000+05:30

I've installed Fedora 16 (32-bit) in my laptop, its dual booting now. Very easy, step by step installation. I had only one drive (c:) in my machine and it has Windows 7 Professional. Fedora 16 has simple step to choose part of free space from C: and create Linux compatible drive with it, installed with very simple steps. It has pretty GUI, I liked it. One more thing.. It is completely FREE along with all utilities.

Here is the URL for downloading Fedora 16.. http://fedoraproject.org/en/get-fedora-options#formats

Magic with slow shutter speeds

2012-01-17T00:43:00.000+05:30

I enjoyed output and forgot about the pain of clicking at 30F cold breeze at beach side. See the following output turned out nicely with slow shutter speeds (3 sec. to 8 sec.)
Please click here to see entire album.

Happy New Year 2012

2012-01-03T18:55:00.000+05:30

Merry Chrismas

2011-12-25T21:55:00.000+05:30

‎)°_██_*。*./ \ .˛* .˛.*.★* *★ 。*
˛. (´• ̮•)*˛°*/.♫.♫\*˛.* ˛_Π_____. * ˛*
.°( . • . ) ˛°./• '♫ ' •\.˛*./______/~＼ *. ˛*.。
*(...'•'.. ) *˛╬╬╬╬╬˛°.｜田田｜門｜╬╬╬╬ .
¯˜"*°•♥•°*"˜¯`´¯˜"*°•♥•°*"˜¯` ´¯˜"*°´¯˜"*°•♥•

Joke

2011-12-01T06:59:00.001+05:30

A wife was making a breakfast of fried eggs for her husband.

Suddenly, her husband came into the kitchen.

"Careful," he said, "CAREFUL! Put in some more butter! Oh my GOD! You're cooking too many at once. TOO MANY! Turn them!

TURN THEM NOW! We need more butter. Oh my GOD! WHERE are we going to get MORE BUTTER?

They're going 2 STICK! Careful.. CAREFUL! I said be CAREFUL!

You NEVER listen to me when you're cooking! Never! Turn them! Hurry up! Are you CRAZY? Have you LOST your mind?

Don't forget to salt them. You know you always forget that. Use the salt. USE THE SALT! THE SALT!"

The wife stared at him. "What is wrong with you? You think I don't know how to fry a couple of eggs?"

The husband calmly replied, "I just wanted to show you what it feels like when I'm driving.

Black Friday Deal Finder

2011-11-24T05:04:00.001+05:30

http://www.fatwallet.com/black-friday/deals.php

Love you Dad!

2011-10-30T01:12:00.000+05:30

At ur age of 1, he wud hav lost his sleep to take care of u.

When u are 10, he wud have lost his favourite perfume 2 pay ur skool fees.

At 18, he wud hav lost al his savings 2 give u graduation.

At ur 22, he wud hav lost his respect 2 get u a job.

To keep u rich, he wud hav not even purchasd clothes for hmself.

To make u lead a luxurious life he wud hav not even taken care of his health.

He is d 1 who sheds his prsnl interests fr ur prosperous lyf.

Salute ur dad for his sacrifice.

Love You Dad :)

Truth of life - A short story I read recently.

2011-09-28T20:30:00.000+05:30

(PS: I read this story in eenadu news paper (eenadu.net) few days ago. I liked it, wanted to share this, So tried to translated. My sincere thanks to author. Please leave a comment if there is a copy right issue.)

I crossed my 50 years in my life. Its Enough, Now I want to quit from the world today. but before that I wanted to catch up GOD and want to scold heartyfully . I’ve reached temple, waiting for the time when the temple will get empty so that I can speak with god alone.

“I am loyal to family and society. I have been praying you from the day that I know about YOU. I know nothing will happen without your attending/intension. WHY did you created ALL kinds of problems. Nobody is happy no body wants to understand my feeling. My wife is not happy, do not satisfy with what we have even we are in a very good financial and ethical situation in the society. My daughter wants to marry a person from different caste / ethinity (what will happenen to my image in society?). My son do not get a minute to talk to me, he is in deep aspire of making money even we have good amout of money and property. Praying “you” is the worst part that I did in my life, you never listen my prayer. You have me all these problems to me!!! I WANT to QUIT”

I heard a voice, GOD is behind me – said “Man, this is wrong that you are scolding me for the things that are not in my control. I have created beautiful nature and all the creatures. I did NOT created Money, caste system. It’s all YOUR creation”

I said, “I don’t agree, what ever the things happening around it should be in your control.”

GOD said, “Ok, let me explain you something, Can you see that begger (home less and mentally disabled person)? See there is a durty, heavy bag in his hand that he holds tightly. Grab it from him, open and find out what is in that”

I siad, “No, he will slap me!”

God smiled, “Man, you are saying that nothing will happen with out GODs intention. I am here and asking you to do, now you are hesitating to do!!”

Oh! I forgot that I am talking to god and he is asking me to do, I cursed my self, and said “My apologies, I will be right back”.

I went towards begger. I had a considerable fight with better to grab that dirty bag. I got surprised when I see the things that it has – I murmered “All dirty papers”. I left it there and saw around.

Begger ran to the bag and putting those papers back to the bag.

I went to God, “All dirty papers, why is that begger holding that dirty papers? He even had a BIG fight to loose it!”

God smiled, “One person see it as a very valuable thing, other person it is dirty paper!”.

He gave a pause and gave a minute to think!

God continued – “You are holding few more things by thinking that they are MOST VALUABLE, you have to figure it out what are they and how long you want to hold it on your shoulders. It’s all your decesion.”

I said slowly “I got it”. I looked around to say God that I got it. But I don’t see him!

I quitted the decesion of quitting :)