[rules-users] Get compiled Java Code of Rules

[Mark Proctor]

Markus Helbig wrote:
> i will do that the next days ... where should i post it?
>   
http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossRules
Just add a link to a page under the Tips and Tricks - it only takes a 
minute to do.
> Cheers
>
> Markus
>
> 2007/12/5, Mark Proctor <mproctor at codehaus.org>:
>   
>>  Markus Helbig wrote:
>>  Here's the way it works for those who are interested
>>
>>  Could you put that up on the wiki for us?
>>
>>
>>
>> -- create a Packagebuilder and build package
>>
>> JavaDialect jd = (JavaDialect)
>> builder.getDialectRegistry().getDialect("java");
>>
>> Field field = jd.getClass().getDeclaredField("src");
>> field.setAccessible(true);
>>
>> MemoryResourceReader src = (MemoryResourceReader) field.get(jd);
>>
>> String[] list = src.list();
>>
>> for (int z = 0; z < list.length; z++)
>> {
>>  String name = (String) list[z];
>>  byte[] bytes = src.getBytes( name );
>>
>>  System.out.println(new String(bytes));
>> }
>>
>> -----
>>
>> thx for the help ...
>>
>> 2007/11/29, Markus Helbig <mhelbig81 at googlemail.com>:
>>
>>
>>  hmm ...
>>
>> PackageCompilatData data = pkg.getPackageCompilationData(); // gets the
>> String[] list = data.list() // returns the list of files
>> Byte[] bytes = data.read( list[0] ) // get the bytecode for
>> new String(bytes);
>>
>> just gives me the bytecode ... but i will try with the PackageBuilder ...
>>
>> Cheers
>>
>> Markus
>>
>> 2007/11/29, Mark Proctor <mproctor at codehaus.org>:
>>
>>
>>  The src code is not kept. You would have to get this from the
>> PackageBuilder and the JavaDialect, which is in the DialectRegistry. You'll
>> need to do this via reflection. When you get a reference to the mape it'll
>> be bytes again, just do new String(byte[] bytes).
>>
>>  Mark
>>
>>  Markus Helbig wrote:
>>  I decompiled the class files, but there's sth curious in the Constant
>> Pool there is an invalid TagValue it is 97, it occurs in the
>> *ReturnValueInvoker Classes any idea what's 97 (or it should be mapped
>> to)?
>>
>> valid types are (as far as i know):
>>
>> CONSTANT_Class 7
>> CONSTANT_Fieldref 9
>> CONSTANT_Methodref 10
>> CONSTANT_InterfaceMethodref 11
>> CONSTANT_String 8
>> CONSTANT_Integer 3
>> CONSTANT_Float 4
>> CONSTANT_Long 5
>> CONSTANT_Double 6
>> CONSTANT_NameAndType 12
>> CONSTANT_Utf8 1
>>
>> Cheers
>>
>> Markus
>>
>> 2007/11/29, Markus Helbig <mhelbig81 at googlemail.com>:
>>
>>
>>  now i tried Mark's suggestion but this is also just bytecode i get ...
>> ok with byte code it would be possible to decompile ...
>>
>> Cheers
>>
>> Markus
>>
>> 2007/11/28, Darko IVANCAN <ivancan at gmx.de>:
>>
>>
>>  Hi,
>>
>> Obviously Mark's suggestion is better.
>>
>> Anyway: Seen, that the BRMS gives you a package (as .pkg) and the
>> RuleAgents can load those files and Packages are Serializable, I think
>> you want to investigate also in this possibility, by looking how current
>> DRools code is doing this job.
>>
>> Darko
>>
>> On 28/11/2007 16:00, Markus Helbig wrote:
>>
>>
>>  that's right, but can you read bytecode? Or is there a way to
>> serialize into pure Java Code,
>>
>> i think i'll try the way Mark provided ...
>>
>> Cheers
>>
>> Markus
>>
>> 2007/11/28, Darko IVANCAN <ivancan at gmx.de>:
>>
>>
>>
>>  Hi,
>>
>> The package can be serialized. See manual: deployment options.
>> The package can also be downloaded from the BRMS.
>>
>> Hope this helps,
>> Darko Ivancan
>>
>> On 28/11/2007 13:58, Markus Helbig wrote:
>>
>>
>>
>>  Hi,
>>
>> is there any possibility to get the compiled java code of the rules
>> ... could be helpful for several reasons ...
>>
>> Cheers
>>
>> Markus
>>