Sebastien Riou created LANG-801:
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Summary: Util for conversion between primitive types
Key: LANG-801
URL: https://issues.apache.org/jira/browse/LANG-801
Project: Commons Lang
Issue Type: New Feature
Components: lang.*
Reporter: Sebastien Riou
Priority: Minor
A utility class to convert data from one primitive type to another, in the most
commonly used fashions (big endian/little endian byte order, lsb first or msb
first).
It also deals with arrays of primitive types and String containing hexadecimal
numbers.
Such conversions are needed when dealing with embedded software or hardware
modeling/design.
I attach a initial version which deals with the "default" encoding, the one
which seems the most natural on the JVM: little endian byte ordering, and,
within a byte, lsb first.
I plan to implement the other encoding I need:
- big endian, lsb first
- big endian, msb first
So far I implemented about half of the methods needed to cover the default
encoding:
- methods to convert a large data type into an array of a smaller data type
(longToBytes for example)
- methods to convert an array of a small data type into a larger data type
(bytesToLong for example)
The remaining half consist of the methods to convert from an array of a data
type into an array of another data type (bytesToLongs, LongsToBytes)
Once this is available for different encodings, the most useful part can be
done: the "bridge" methods to convert from one encoding to another
Warning: newbie speaking here! I don't see how to attach a file here. Since a
guy from the mailing list suggested to "do a JIRA and attach the files", I
assume it is possible to attach the files only after the issue is created,
well, I will see...
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