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https://jira.jboss.org/jira/browse/JBIDE-3670?page=com.atlassian.jira.plu...
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Jeff DeLong commented on JBIDE-3670:
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So there are potentially three source of a Drools Runtime:
1) Create a new Drools 5 Runtime using the Drools Runtime Wirard "Create a new Drools
5 Runtime button. A minor issue with this is the way the box is organized. It says
"Either select an existing Drools Runtime on your file system or create a new
one" Then provides text boxes to fill in Name: and Path as well as a button
"Create a new Drools 5 Runtime". While the text I quoted is correct, the
organization of the UI still leave a bit of doubt as to whether they should fill in the
Name: and Path: and then push the Create a new Drools 5 Runtime Button. (as it turns out
it does not matter as the wizard assigns the name without regard to what the user types as
will require the user to browse to a folder if not supplied. When the use returns from
2) Use the Name: and Path and browse to a downloaded unzipped set of Drools jars. In
this case the problem was that some of the jars were in the lib directory, however Kris
fixed the wizard to add the lib directory as well.
The UI is a bit awkward because it is not clear exactly how the buttons and text fields
are used together. So for example, if you fill in the Name: and Path: you don't hit
the Create button. The directions in the documentation Kris pointed at are pretty clear,
but how would the user have access to this documentation?
3) Browse to a jbrules.esb directory. The issues here is that the MVEL jars are in another
.esb folder. Also, unless the user manually replaces them (which may be a requirement with
the initial JBoss BRMS release, the jars are for Drools4. So the user would have to
organize these jars into some other folder themselves.
Drools Runtime unclear how to correctly define
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Key: JBIDE-3670
URL:
https://jira.jboss.org/jira/browse/JBIDE-3670
Project: Tools (JBoss Tools)
Issue Type: Bug
Components: drools
Affects Versions: 3.0.0.cr1
Environment: jbdevstudio-linux-gtk-2.0.0.CR2-R200901250322.jar on RHEL 5, jdk
1.5.11
Reporter: Jeff DeLong
Assignee: Kris Verlaenen
Priority: Critical
Fix For: 3.0.0.GA
I tested out the Drools IDE in JBDS. I used the Drools icon to create a new Drools
project, and ran the DroolsTest class the wizard created as a Java Application. I got the
following exception:
java.lang.NoClassDefFoundError: org/antlr/runtime/CharStream
The problem is with defining the "Drools Runtime". As part of the setup for
creating a Drools Project for the first time, the user is asked to create a "Drools
Runtime". This is new (in the past Drools IDE new which set of jars to use), to be
consistent with other tools and allow user to select different Drools Runtimes. The
challenge for the user is how to define a Drools Runtime. You can either find the jars in
JBDS plugins, explode them into a folder, and point to them, or download Drools
engine/expert (in this case I had decided to try jboss-brms-engine-5.ea.zip, since this is
the .com version). However when this is unzipped, some jars are in the root of the folder
and some are in a lib directory. At least four of the ones in the lib directory are
required for runtime (antlr-runtime-3.1.1.jar, core-3.4.2.v_883_R34x.jar, mvel2-2.0.5.jar,
xstream-1.3.1.jar), and the jars in a subdirectory are not added to the runtime
classpath.
It should be easier for the user to define a Drools Runtime. They should not have to know
about which jars to move around. They should just be able to download and unzip.
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