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https://issues.jboss.org/browse/JBRULES-3619?page=com.atlassian.jira.plug...
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Mark Proctor commented on JBRULES-3619:
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This can be done quite cleanly as an integration exercise via a memory file system and a
custom classloader. For this reason I have closed the pull request, and have not merged
it. I've pasted the comments I left in the pull request below:
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not sure I like this, it seems very kludgy. The knowledge agent is for monitoring external
resources, but this is applying them.
It's possible to make a MemoryFileSystem and actually use that, without changing
KnowledgeBuilder at all.
I recently wrote a MemoryFileSystem here:
https://github.com/droolsjbpm/drools/tree/master/drools-compiler/src/test...
And here you can see the vfs in action, programmatically, to allow me to build resources
in memory without touching disk. See testCompileAndCDI, where I build up the contents of
the MemoryFileSystem.
https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/test...
What makes it work is the classloader, scroll down to line 455:
MemoryFileSystemClassLoader
As you can see the builder factory is using just standard knowledge builder public apis,
but they are actually being resolved from in memory.
https://github.com/droolsjbpm/drools/blob/master/drools-compiler/src/main...
You can actually mix both in memory and disk based file systems, using the in memory to
"overlay" the disk.
Knowledge Agent: add the possibility to apply ByteArrayResources
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Key: JBRULES-3619
URL:
https://issues.jboss.org/browse/JBRULES-3619
Project: Drools
Issue Type: Feature Request
Security Level: Public(Everyone can see)
Components: drools-core
Affects Versions: 5.4.0.Final
Reporter: Esteban Aliverti
Assignee: Esteban Aliverti
Priority: Minor
At the moment, the agent can process change-set containing one or more resources. The
problem is when the resource we want to use is a ByteArray/InputStream/Reader Resource.
There is no way to create a change-set containing any of these types of resources.
It would be a nice feature to allow the Knowledge Agent to accept these kind of
resources.
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