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The myth of the perfectly generic and reusable solution
Often times when I set out to do something new on the job, I hear a simple requirement over and above the actual business function – keep it generic enough that it can be reused. And I set about it to...
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Building a rudimentary cache in Python using Twisted
Every now and then I try and see if I can take something that I built in Java and build it in Python. After having thought of doing a socket application in Python using the Twisted framework, something...
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Building a rudimentary cache in Python using Twisted – part 2
I decided to go ahead and try using the cache that I built for some scenario that I might expect to see in real life. Part of the work I do daily demands that I start one thread to create some data...
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How solutions/platforms grow, evolve and become extinct
Every so often, I hear someone saying or writing about how a particular solution seems wrong and how given a chance they would design it properly and show how it should be done. My reaction – bravo! if...
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Casting nulls in Java
I admit this was something that I never noticed, even though I have used it day in and out. And it was a surprise when I realized it. I have been working extensively on messaging systems and...
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Understanding transient variables in Java and how they are practically used...
What is the significance of the transient keyword in Java? If you know the answer, good! you are a person who uses this a lot or a person who has read this very recently. If this seems like a word from...
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Passing entities between two systems that do not allow the same set of...
If you have ever worked on any sort of adapter – a piece of code that takes entities from a particular system and then makes it available to a different system – then you definitely must have come...
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The DEV estimate from hell – why some things seem to take a lot longer to get...
We all have given estimates for development work – and we all have either missed them at some point or have been asked why it takes so much time to get something done. How and what we respond to...
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Locking issues with Java blocking queues
A while ago I had posted about issues with poll() vs pol(timeout) on the Java concurrent blocking queues, and issues with the bucket sizes of concurrent hash maps. Those solutions worked well – but the...
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Building a simple journey planner
In my last blog I mentioned about using a Scrapy crawler to build information about the bus routes in Hyderabad. Once I had the data in place, what to do with it? Since I had all the routes and...
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