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| Base Conversion from Decimal to Octal and likewise |
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| Aldrine |
 Posted: Wed Jul 27, 2011 2:31 am Post subject: |
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Novice
Joined: 25 Jul 2011
Posts: 22
Location: India
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| Vitor wrote: |
| kimbert wrote: |
| it is not wise to *ban* either ESQL or Java. It is OK to state that one or other is the preferred language on your site, as long as exception are allowed. |
You can also mention that this one exception to an ESQL-only rule is a very stable piece of code with clearly defined & documentable inputs and output & very low levels of ongoing development and maintenance. So it's a good candidate for the one piece of surviving Java that sits in a corner & no-one on site understands how it works.
Unlike (pulling an example out of thin air) the entire error handling and retry logic built into all of the flows which is a problem if it's written in Java with no documentation apart from a few comments in the code and you then downsize everybody on site who knows Java with no notice, no warning and no handover!  |
Thank you folks for your valuable input;
I agree with Vitor, that usage of well documented code is needed for better maintainability and scalability.
The usage of ESQL vs Java is purely for the choosing of future development or Migration (I hope there is no axing of people onsite).
I have decided to settle for ESQL (to the most possible things which could be implemented from algorithms without taking nitty gritty details) and to use Java for things which isn't too easy to convert to ESQL like maintaining a Hash Table and so on...
Can someone let me know if there is any oher optimised way for Base Conversion? If there is one better that the code i have given earlier.
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Aldrine Einsteen |
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| kimbert |
| Posted: Wed Jul 27, 2011 4:02 am Post subject: |
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Jedi Council
Joined: 29 Jul 2003
Posts: 5542
Location: Southampton
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| Quote: |
| Can someone let me know if there is any oher optimised way for Base Conversion? If there is one better that the code i have given earlier. |
I suspect that your code could be made a little simpler. For instance:
- I'm not sure why you need to work with negative numbers throughout.
- You don't need all of the alphabet unless you need to support some *really* strange radixes. The common ones are 2,8,10,16 and 64.
You technique could be extended to support base64, but ESQL has functions for that. So I suggest that you stick at 16.
I suspect that you could get away with a small set of radix-specific ESQL functions, rather than trying to solve the general problem. But I still think Java is the correct solution for this. |
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