[ale] found a bug in an open source API: It 'Broke' under linux.

[Joshua]

I noticed that as well, but I was hoping to be able to figure out to use 
File.createTempFile() and then the prefs would come in handy.  I can try 
again and see what happens, but previously the temp file was being 
created, but not populated.



Tim Watts wrote:
> Just noticed something odd in your fix:
>
> 	prefs.put(CACHE_NAME_KEY, cacheFile.getName());
>
> getName() returns just the base file name and discards the path. So it
> will ALWAYS equal "ExchangeRates.xml". Therefore, there's really no need
> to use the prefs object at all. Simpler and simpler...
>
> Also, adding a new preferences key introduces more change than is
> necessary to fix the bug. Not necessarily a bad thing but it may produce
> some push back by the project committers.
>
>
> On Sat, 2011-02-12 at 14:53 -0500, Joshua wrote:
>   
>> I am working with an API for currency conversion from 
>> http://www.thomasknierim.com/index.php?s=currencyconverter&Submit=Search 
>> <http://www.thomasknierim.com/index.php?s=currencyconverter&Submit=Search>
>>
>> It is all written is Java.
>>
>> The initCacheFile()  method worked fine under windows, but it broke 
>> under linux. 
>>
>> The original code grabbed the path to the java temp directory and then 
>> concatenated  a file name onto the end of it.   I do not know what it 
>> produces under windows, but my suspicion is that windows is something 
>> like </driveletter:\pathtotemp\/>  with the trailing '\' included.
>>
>> Under linux the call to return the temp directory returns '/tmp' and 
>> then the concatenating of '/filename/'  creates a file named 
>> /tmp/filename/ instead of /tmp//filename/  so the application was trying 
>> to write to / where it did not have permissions.  So I had to write a 
>> fix.  Still not sure the fix is this best.
>>
>>
>> Maybe someone can look at the code I wrote and let me know.
>>
>> http://pastebin.com/vsC6vZRU
>>
>> The old code is commented out.
>>
>> Joshua Roberts
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>
>
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