[rules-users] Merge repository in Guvnor and editing brl with eclipse plugin

Tue Mar 22 19:34:02 EDT 2011

On 3/22/11 12:02 PM, ioda100 wrote:
> Hi,
>
> I try to figure out how to import a package from an instance of guvnor to
> another instance of guvnor without destroying all the existing repository.
>
> There is an import/export function in the administration part of guvnor but
> it export all the repository and when import a repository, it's erasing all
> before importing.
>
> What i would like to be able to do is : i have a package with rules,
> functions, enum, dsl, test scenarios... under an instance of guvnor and i
> have another package under another instance and i would like to import the
> second package to the other instance of guvnor without erasing the existing
> repository. Is it a way to do this? i can't find it. maybe with the eclipse
> plugin? I don't want to import from a drl file because i would loose the
> graphical part (use of dsl, enum...).
Repository XML import is not a merge, so yes the existing repository 
will first be erased. I don't follow your use case completely (more like 
how did you get into your situation tobegin with ;) ).
One thing you can take advantage of in the future is having multiple 
Guvnor instances be in a Jackrabbit cluster (see 
http://blog.athico.com/2011/01/configuring-multiple-guvnor-instances.html). 
If you have a need to migrate an existing repository (copy) from one 
location to another, I just wrote a drools-ant task for that (check the 
blog soon).

With what you have right now, the only thing that comes to mind is to 
check out all assets of your package B via the Guvnor eclipse plugin, 
then add them manually (via same plugin) to package A.

Tihomir

>
> My second question is that i try to use the guvnor plugin for eclipse to
> manage rules in the guvnor repository. I can access to it and read/modify
> all but i can't modify the ".brl" files, i get for all the files this
> message : "Could not open the editor: An unexpected exception was thrown.
> java.lang.NullPointerException
> 	at org.drools.eclipse.rulebuilder.ui.ActionSetFieldWidget.(Unknown Source)
> 	at
> org.drools.eclipse.rulebuilder.ui.RuleModeller.addActionSetFieldWidget(Unknown
> Source)
> 	at org.drools.eclipse.rulebuilder.ui.RuleModeller.redrawRhs(Unknown Source)
> 	at org.drools.eclipse.rulebuilder.ui.RuleModeller.reloadRhs(Unknown Source)
> 	at org.drools.eclipse.rulebuilder.ui.RuleModeller.reloadWidgets(Unknown
> Source)
> 	at org.drools.eclipse.rulebuilder.editors.BrlPage.setModelXML(Unknown
> Source)
> 	at org.drools.eclipse.rulebuilder.editors.RuleEditor.pageChange(Unknown
> Source)
> 	at
> org.eclipse.ui.part.MultiPageEditorPart.setActivePage(MultiPageEditorPart.java:1076)
> 	at
> org.eclipse.ui.forms.editor.FormEditor.setActivePage(FormEditor.java:597)
> 	at
> org.eclipse.ui.part.MultiPageEditorPart.createPartControl(MultiPageEditorPart.java:361)
> 	at
> org.eclipse.ui.internal.EditorReference.createPartHelper(EditorReference.java:662)
> 	at
> org.eclipse.ui.internal.EditorReference.createPart(EditorReference.java:462)
> 	at
> org.eclipse.ui.internal.WorkbenchPartReference.getPart(WorkbenchPartReference.java:595)
> 	at
> org.eclipse.ui.internal.EditorReference.getEditor(EditorReference.java:286)
> 	at
> org.eclipse.ui.internal.WorkbenchPage.busyOpenEditorBatched(WorkbenchPage.java:2857)
> 	at
> org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:2762)
> 	at org.eclipse.ui.internal.WorkbenchPage.access$11(WorkbenchPage.java:2754)
> 	at org.eclipse.ui.internal.WorkbenchPage$10.run(WorkbenchPage.java:2705)
> 	at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70)
> 	at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2701)
> 	at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2685)
> 	at
> org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2668)
> 	at org.guvnor.tools.utils.PlatformUtils.openEditor(Unknown Source)
> 	at org.guvnor.tools.views.RepositoryView.doubleClick(Unknown Source)
> 	at org.guvnor.tools.views.RepositoryView.access$4(Unknown Source)
> 	at org.guvnor.tools.views.RepositoryView$7.run(Unknown Source)
> 	at org.guvnor.tools.views.RepositoryView$9.doubleClick(Unknown Source)
> 	at
> org.eclipse.jface.viewers.StructuredViewer$1.run(StructuredViewer.java:821)
> 	at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
> 	at org.eclipse.core.runtime.Platform.run(Platform.java:888)
> 	at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:48)
> 	at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175)
> 	at
> org.eclipse.jface.viewers.StructuredViewer.fireDoubleClick(StructuredViewer.java:819)
> 	at
> org.eclipse.jface.viewers.AbstractTreeViewer.handleDoubleSelect(AbstractTreeViewer.java:1419)
> 	at
> org.eclipse.jface.viewers.StructuredViewer$4.widgetDefaultSelected(StructuredViewer.java:1195)
> 	at
> org.eclipse.jface.util.OpenStrategy.fireDefaultSelectionEvent(OpenStrategy.java:238)
> 	at org.eclipse.jface.util.OpenStrategy.access$0(OpenStrategy.java:235)
> 	at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:296)
> 	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84)
> 	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1003)
> 	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:3910)
> 	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3503)
> 	at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2405)
> 	at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2369)
> 	at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2221)
> 	at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:500)
> 	at
> org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
> 	at
> org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:493)
> 	at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
> 	at
> org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:113)
> 	at
> org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:194)
> 	at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
> 	at
> org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
> 	at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:368)
> 	at
> org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> 	at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> 	at java.lang.reflect.Method.invoke(Method.java:597)
> 	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:559)
> 	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:514)
> 	at org.eclipse.equinox.launcher.Main.run(Main.java:1311)
> 	at org.eclipse.equinox.launcher.Main.main(Main.java:1287)
> "
>
> Thanks in advance for your help.
>
> --
> View this message in context: http://drools-java-rules-engine.46999.n3.nabble.com/Merge-repository-in-Guvnor-and-editing-brl-with-eclipse-plugin-tp2715521p2715521.html
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