[brailleblaster] Re: I broke some of the paths, how can I fix them

  • From: Alex Jurgensen <asquared21@xxxxxxxxx>
  • To: brailleblaster@xxxxxxxxxxxxx
  • Date: Tue, 1 Feb 2011 17:50:49 -0800

Hi,

I am designing my bootstrapping exicutable to pass through the command-line 
arguments, so you would call it like this.

/Applications/Braille\ Blaster.app/Contents/MacOS/brailleblaster arguments

This will call the following.

java -jar /Applications/Braille\ 
Blaster.app/Contents/Resources/brailleblaster.jar arguments.

Regards,
Alex,


On 2011-02-01, at 9:40 AM, Michael Whapples wrote:

> If the jars to be used are specified in the build.xml file then the classpath 
> isn't hard coded. However then anything directly giving a java command (eg. a 
> bootstrapping executable) will then need to specify all jars in the 
> -classpath option it gives to java. No end user should be expected to use 
> ant, so what ever is in build.xml which may assist you in running 
> BrailleBlaster should be forgotten when thinking of users.
> 
> On the question of which distributions have a standard for where jars go, I 
> think debian and archlinux may.
> 
> You may want to have a look at this archlinux wiki article on packaging 
> standards for archlinux 
> https://wiki.archlinux.org/index.php/Java_Package_Guidelines. OK, so 
> archlinux may not quite do what I initially said, but that article still says 
> what I m getting at, some of our dependencies may not be in the same 
> directory as the BrailleBlaster jar file once packaged for a linux 
> distribution (eg. it may be refactored out as a common dependency).
> 
> Michael Whapples
> On 1 Feb 2011, at 09:28, John J. Boyer wrote:
> 
>> The classpaths are in the ant build.xml file. It certainly makes running 
>> BrailleBlaster simple on my Linux. I think it woruld work the same way 
>> on Windows. Which Linux distributions require that all jar files be in a 
>> standard location?
>> John
>> 
>> On Tue, Feb 01, 2011 at 09:03:36AM +0000, Michael Whapples wrote:
>>> Do I read this right, BrailleBlaster has some classpath locations hard 
>>> coded inside it? This sounds like a porting head ache. I am thinking of 
>>> as an example what bother this might give a Linux distribution packager, 
>>> where may be jars need to be placed in a specific location to fit with 
>>> the distribution's standard, eg. jars in /usr/share/jar.
>>> 
>>> I would have thought all classpaths (unless using a custom classloader, 
>>> but you might make that customisable from the command line) should be 
>>> configured using the -cp option to the java command.
>>> 
>>> Michael Whapples
>>> On 01/02/11 04:39, John J. Boyer wrote:
>>>> Alex,
>>>> 
>>>> There are no 32-bit and 64-bit jars except swt.jar All the others are
>>>> pure Java. You can specify a classpath on the line that calls java. It
>>>> will be added to the one that BrailleBlaster uses internally.
>>>> 
>>>> I'll have more to say after I look at your mockup.
>>>> 
>>>> John
>>>> 
>>>> On Mon, Jan 31, 2011 at 08:23:07PM -0800, Alex Jurgensen wrote:
>>>>> Hi John,
>>>>> 
>>>>> I don't wish to mix 32-bit and 64-bit native libraries.
>>>>> 
>>>>> Can you pass in a class path and use it at the same time as the "lib" 
>>>>> directory for storing Java jars?
>>>>> 
>>>>> Any help with this would be greatly appreciated.
>>>>> 
>>>>> Regards,
>>>>> Alex,
>>>>> 
>>>>> 
>>>>> On 2011-01-31, at 7:11 PM, John J. Boyer wrote:
>>>>> 
>>>>>> Java is supposed to be compile once, run anywhere. The jar files are
>>>>>> platform-independent except for the swt.jar which includes native
>>>>>> libraries. I'm not sure, but I think that if the native libraries are
>>>>>> compiled for 32 bits they will work on 64 bits, with perhaps a small
>>>>>> drop in performance.
>>>>>> 
>>>>>> John
>>>>>> 
>>>>>> On Mon, Jan 31, 2011 at 11:54:59AM -0800, Alex Jurgensen wrote:
>>>>>>> Hi John,
>>>>>>> 
>>>>>>> Let me get something straight. There are different versions of the Jars 
>>>>>>> found in the "lib" directory for 32-bit and 64-bit platforms, right?
>>>>>>> 
>>>>>>> Regards,
>>>>>>> Alex,
>>>>>>> 
>>>>>>> 
>>>>>>> On 2011-01-31, at 11:44 AM, John J. Boyer wrote:
>>>>>>> 
>>>>>>>> You will have to change org.brailleblaster.BBIni.java Change
>>>>>>>> nativeLibraryPath. If you moved the library with the jar files you will
>>>>>>>> have to give a classpath Could you avoid this problem? Porting should 
>>>>>>>> be
>>>>>>>> as simple as possible.
>>>>>>>> 
>>>>>>>> John
>>>>>>>> 
>>>>>>>> On Mon, Jan 31, 2011 at 11:12:36AM -0800, Alex Jurgensen wrote:
>>>>>>>>> Hi All,
>>>>>>>>> 
>>>>>>>>> Whe I was building my latest edition of my Braille Blaster mock up, I 
>>>>>>>>> moved the "lib" and "native" subdirectories.
>>>>>>>>> 
>>>>>>>>> What do I need to pass in at the command-line to get BB to work again?
>>>>>>>>> 
>>>>>>>>> Your help with this is greatly appreciated.
>>>>>>>>> 
>>>>>>>>> Regards,
>>>>>>>>> Alex,
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> 
>>>>>>>>> Alex Jurgensen,
>>>>>>>>> VoiceOver Trainer,
>>>>>>>>> ASquared21@xxxxxxxxxxxxxxxxx                  
>>>>>>>>> 
>>>>>>>>> Visit us on the web at: www.vipbc.org
>>>>>>>>> 
>>>>>>>> -- 
>>>>>>>> John J. Boyer; President, Chief Software Developer
>>>>>>>> Abilitiessoft, Inc.
>>>>>>>> http://www.abilitiessoft.com
>>>>>>>> Madison, Wisconsin USA
>>>>>>>> Developing software for people with disabilities
>>>>>>>> 
>>>>>>>> 
>>>>>> -- 
>>>>>> John J. Boyer; President, Chief Software Developer
>>>>>> Abilitiessoft, Inc.
>>>>>> http://www.abilitiessoft.com
>>>>>> Madison, Wisconsin USA
>>>>>> Developing software for people with disabilities
>>>>>> 
>>>>>> 
>>> 
>> 
>> -- 
>> John J. Boyer; President, Chief Software Developer
>> Abilitiessoft, Inc.
>> http://www.abilitiessoft.com
>> Madison, Wisconsin USA
>> Developing software for people with disabilities
>> 
>> 
>

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