How to reference an included zul file in customization bundle when performing Executions.createComponents

[Kevin Yang]

Hi All,

Thank you very much for review my topic.

I created a normal bundle as Plug-in project, and I created an zul file "zulFileName.zul" in path "/zul",

When I tried to call  Executions.createComponents("/zul/ZMRPDetailed.zul", null, null) to create the component, error message out:

Nov 17, 2013 2:21:05 PM org.zkoss.zk.ui.impl.UiEngineImpl handleError:1359

SEVERE: >>org.zkoss.zk.ui.UiException: Page not found: /zul/zulFileName.zul

>> at org.zkoss.zk.ui.http.ExecutionImpl.getPageDefinition(ExecutionImpl.java:371)

>> at org.zkoss.zk.ui.impl.AbstractExecution.createComponents0(AbstractExecution.java:246)

>> at org.zkoss.zk.ui.impl.AbstractExecution.createComponents(AbstractExecution.java:238)

>> at org.zkoss.zk.ui.Executions.createComponents(Executions.java:179)

But If I change the current bundle to fragment against org.adempiere.ui.zk(Host), Executions.createComponents("/zul/ZMRPDetailed.zul", null, null) will create the component.

If you know the reason, Would you please tell me why I can't use Executions.createComponents("/zul/ZMRPDetailed.zul", null, null)  in normal bundle.

If I want to use zul files to develop some UI forms to extension ID's webUI in my customization bundle(not fragment), What need I do?

Thanks again.

Best Regards,

Kevin

[Heng Sin Low]

You have 2 options here:

1) Use Executions.createComponents(url, parent, arg) and you have to host all your plugin's zul resources as fragment. i.e you have a plugin to host your code plus a fragment projects to host your zul resources.

2) Have a single plugin projects to host your code + zul resources. For this setup, you need to use one of the Executions.createComponentsDirectly method instead. To access your plugin's zul resource as uri, use the bundleContext.getBundle().getEntry(path) method.

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[Kevin Yang]

Hi Hengsin,

Thank you very much for your reply.

Now I am using option 1 to solve this issue. But in fact, I prefer the option 2.

I use a normal JavaObject(implements from IFormFactory) to create the components, So I use the below code instead of "bundleContext.getBundle().getEntry(path)"

"URL zulFileUrl =this.getClass().getClassLoader().getResource(zulfile);"  to get the URI. When I call 

"

reader = new BufferedReader(new InputStreamReader(zulFileUrl.openStream()));

page = (ADForm) Executions.createComponentsDirectly(reader, null, null, null);

"

the zul file can be load, but the apply class(org.test.erp.mfg.controller.MRPDetailedController) in zul file will through ClassNotFoundException exception as 

Nov 18, 2013 12:27:34 AM org.zkoss.zk.ui.impl.UiEngineImpl handleError:1359

SEVERE: >>org.adempiere.webui.exception.ApplicationException: java.lang.ClassNotFoundException: org.test.erp.mfg.controller.MRPDetailedController

>>org.zkoss.zk.ui.UiException: java.lang.ClassNotFoundException: org.test.erp.mfg.controller.MRPDetailedController

>>java.lang.ClassNotFoundException: org.test.erp.mfg.controller.MRPDetailedController

>> at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:513)

>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:429)

>> at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:417)

>> at org.eclipse.osgi.internal.baseadaptor.DefaultClassLoader.loadClass(DefaultClassLoader.java:107)

>> at java.lang.ClassLoader.loadClass(Unknown Source)

>> at java.lang.Class.forName0(Native Method)

>> at java.lang.Class.forName(Unknown Source)

>> at org.zkoss.lang.Classes.forNameByThread(Classes.java:271)

>> at org.zkoss.lang.ImportedClassResolver.resolveClass(ImportedClassResolver.java:122)

>> at org.zkoss.zk.ui.impl.PageImpl.resolveClass(PageImpl.java:478)

>> at org.zkoss.zk.ui.impl.AbstractUiFactory.newComposer(AbstractUiFactory.java:142)

>> at org.zkoss.zk.ui.impl.Utils.newComposer(Utils.java:89)

>> at org.zkoss.zk.ui.metainfo.ComponentInfo.toComposer(ComponentInfo.java:355)

>> at org.zkoss.zk.ui.metainfo.ComponentInfo.toComposers(ComponentInfo.java:323)

>> at org.zkoss.zk.ui.metainfo.ComponentInfo.resolveComposer(ComponentInfo.java:310)

>> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild0(UiEngineImpl.java:786)

>> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreateChild(UiEngineImpl.java:778)

>> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate0(UiEngineImpl.java:687)

>> at org.zkoss.zk.ui.impl.UiEngineImpl.execCreate(UiEngineImpl.java:651)

>> at org.zkoss.zk.ui.impl.UiEngineImpl.createComponents(UiEngineImpl.java:1032)

>> at org.zkoss.zk.ui.impl.AbstractExecution.createComponentsDirectly0(AbstractExecution.java:312)

>> at org.zkoss.zk.ui.impl.AbstractExecution.createComponentsDirectly(AbstractExecution.java:302)

>> at org.zkoss.zk.ui.Executions.createComponentsDirectly(Executions.java:290)

[Heng Sin Low]

Try setting this.getClass().getClassLoader() as the current thread's context class loader.

[Kevin Yang]

Hi Hengsin,

I have tried

URL zulFileUrl =this.getClass().getResource(zulfile);

But zulFileUrl Object return null. 

I am still not so clear about "set this.getClass().getClassLoader() as the current thread's context class loader." 

Would you please give me some tips?

Thank you very much,
Best Regards,

Kevin

[Heng Sin Low]

I means call Thread.currentThread.setContextClassLoader((this.getClass().getClassLoader()) before the call to Executions.createComponentsDirectly.

For access to bundle context, you need to create a Activator object for your plugin and cache the bundlecontext as static variable in the start method ( for e.g, see org.adempiere.base.BaseActivator ).

[Kevin Yang]

Hi Hengsin,

Thank you very much.
The issue is resolved after I called Thread.currentThread.setContextClassLoader((this.getClass().getClassLoader()) .

Best Regards,

Kevin