[rules-users] Get compiled Java Code of Rules

[Markus Helbig]

i will do that the next days ... where should i post it?

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
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