| Custom Facet Installation fails when no InstallDelegate class is created [message #232243] |
Mon, 08 June 2009 12:49  |
 Tilak Sharma
Messages: 48
Registered: July 2009 |
Member |
|
|
Hi,
I created one custom facet using the extension point:
"org.eclipse.wst.common.project.facet.core.facets" like:
<extension
point="org.eclipse.wst.common.project.facet.core.facets">
<project-facet
id="sample.facet1">
<label>
Sample Facet
</label>
<description>
Facet used for Sample Project
</description>
</project-facet>
<project-facet-version
facet="sample.facet1"
version="1.0">
<constraint>
<requires
facet="jst.java"
version="5.0">
</requires>
</constraint>
</project-facet-version>
</extension>
Now from my code, when I tried to install this facet (I got this code from
this webtools Newsportal itself! Thanks a Ton! :-) ):
IFacetedProject fp = ProjectFacetsManager.create(iProject, true, monitor);
fp.installProjectFacet(ProjectFacetsManager.getProjectFacet( "jst.java")
.getDefaultVersion(), null, monitor);
fp.installProjectFacet(ProjectFacetsManager.getProjectFacet( "sample.facet1")
.getDefaultVersion(), null, monitor);
The installation of sample.facet1 fails and the below exception is thrown:
java.lang.reflect.InvocationTargetException
at
org.eclipse.ui.actions.WorkspaceModifyOperation.run(Workspac eModifyOperation.java:119)
at
org.eclipse.jface.operation.ModalContext.runInCurrentThread( ModalContext.java:458)
at org.eclipse.jface.operation.ModalContext.run(ModalContext.ja va:366)
at org.eclipse.jface.wizard.WizardDialog.run(WizardDialog.java: 934)
at
com.sonicsw.tools.core.project.SonicProjectWizard.createNewP roject(SonicProjectWizard.java:259)
at
com.sonicsw.tools.core.project.SonicProjectWizard.performFin ish(SonicProjectWizard.java:83)
at
org.eclipse.jface.wizard.WizardDialog.finishPressed(WizardDi alog.java:742)
at
org.eclipse.jface.wizard.WizardDialog.buttonPressed(WizardDi alog.java:373)
at org.eclipse.jface.dialogs.Dialog$2.widgetSelected(Dialog.jav a:624)
at
org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListe ner.java:228)
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.ja va:3823)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3422)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:825 )
at org.eclipse.jface.window.Window.open(Window.java:801)
at
org.eclipse.ui.internal.actions.NewWizardShortcutAction.run( NewWizardShortcutAction.java:135)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498 )
at
org.eclipse.jface.action.ActionContributionItem.handleWidget Selection(ActionContributionItem.java:583)
at
org.eclipse.jface.action.ActionContributionItem.access$2(Act ionContributionItem.java:500)
at
org.eclipse.jface.action.ActionContributionItem$5.handleEven t(ActionContributionItem.java:411)
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.ja va:3823)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3422)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2382)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2346)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:21 98)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:493)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:288)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:488)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at
org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:113)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:193)
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(EclipseS tarter.java:386)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java: 549)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
at org.eclipse.equinox.launcher.Main.run(Main.java:1236)
at org.eclipse.equinox.launcher.Main.main(Main.java:1212)
Caused by: org.eclipse.core.runtime.CoreException: One or more constraints
have not been satisfied.
at
org.eclipse.wst.common.project.facet.core.internal.FacetedPr oject.modifyInternal(FacetedProject.java:343)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedPr oject.mergeChangesInternal(FacetedProject.java:1134)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedPr oject.access$2(FacetedProject.java:1070)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedPr oject$1.run(FacetedProject.java:309)
at org.eclipse.core.internal.resources.Workspace.run(Workspace. java:1800)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedPr oject.modify(FacetedProject.java:319)
at
org.eclipse.wst.common.project.facet.core.internal.FacetedPr oject.installProjectFacet(FacetedProject.java:242)
at
com.sonicsw.tools.core.project.SonicProjectWizard$1.execute( SonicProjectWizard.java:241)
at
org.eclipse.ui.actions.WorkspaceModifyOperation$1.run(Worksp aceModifyOperation.java:104)
at org.eclipse.core.internal.resources.Workspace.run(Workspace. java:1800)
at
org.eclipse.ui.actions.WorkspaceModifyOperation.run(Workspac eModifyOperation.java:116)
... 45 more
I could overcome this problem only after I added the install and uninstall
actions in the project-facet-version in the extension point like:
<action id="com.sample.project.install" type="install">
<delegate
class="com.sample.project.SampleFacetInstallDelegate">
</delegate>
</action>
<action id="com.sample.project.uninstall" type="uninstall">
<delegate
class="com.sample.project.SampleFacetUninstallDelegate">
</delegate>
</action>
The exception message is not at all indicating that I should provide
implementation for the install and uninstall delegates.
Is this really a problem with the exception message (should framework
handle if no install and uninstall delegates are provided?) or Am I
missing something obvious?
Thanks in advance,
Tilak
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| Re: Custom Facet Installation fails when no InstallDelegate class is created [message #232290 is a reply to message #232264] |
Wed, 10 June 2009 13:51  |
Tilak Sharma
Messages: 48
Registered: July 2009 |
Member |
|
|
Thanks a lot for your reply with such a clear explanation !
I have created a bug
(https://bugs.eclipse.org/bugs/show_bug.cgi?id=279795) for the change in
the exception message when no install delegate is provided.
I am providing only an install delegate now and inside that I am adding
few natures to my project. Its working!
I have one more small problem: How to install a facet and set it as fixed
facet at the same time?
Currently, I am using this code:
IFacetedProject fp = ProjectFacetsManager.create(project, true, monitor);
IProjectFacet javaFacet = ProjectFacetsManager.getProjectFacet("jst.java");
IProjectFacet sampleFacet =
ProjectFacetsManager.getProjectFacet("sample.facet");
fp.installProjectFacet(javaFacet.getDefaultVersion(), null, monitor);
fp.installProjectFacet(sampleFacet.getDefaultVersion(), null, monitor);
Set<IProjectFacet> fixedFacets = new HashSet<IProjectFacet>();
fixedFacets.add(javaFacet);
fixedFacets.add(sampleFacet);
fp.setFixedProjectFacets(fixedFacets);
By this, I have both java and sample facets installed and fixed (they
cannot be unchecked) in the 'Project Facets' Preference page in the
project properties.
I tried using IFacetedProjectWorkingCopy, but in vain:
IFacetedProjectWorkingCopy facetedWorkingCopy = fp.createWorkingCopy();
facetedWorkingCopy.setFixedProjectFacets(fixedFacets);
Is there any option to install a facet and also set it to be a fixed
facet, programatically?
Thanks a lot!
Tilak
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| Re: Custom Facet Installation fails when no InstallDelegate class is created [message #232520 is a reply to message #232290] |
Mon, 15 June 2009 16:40 |
Konstantin Komissarchik
Messages: 1077
Registered: July 2009 |
Senior Member |
|
|
> I have one more small problem: How to install a facet and set it as fixed
> facet at the same time?
> Currently, I am using this code:
> IFacetedProject fp = ProjectFacetsManager.create(project, true, monitor);
> IProjectFacet javaFacet = ProjectFacetsManager.getProjectFacet("jst.java");
> IProjectFacet sampleFacet =
> ProjectFacetsManager.getProjectFacet("sample.facet");
> fp.installProjectFacet(javaFacet.getDefaultVersion(), null, monitor);
> fp.installProjectFacet(sampleFacet.getDefaultVersion(), null, monitor);
> Set<IProjectFacet> fixedFacets = new HashSet<IProjectFacet>();
> fixedFacets.add(javaFacet);
> fixedFacets.add(sampleFacet);
> fp.setFixedProjectFacets(fixedFacets);
> By this, I have both java and sample facets installed and fixed (they
> cannot be unchecked) in the 'Project Facets' Preference page in the
> project properties.
> I tried using IFacetedProjectWorkingCopy, but in vain:
> IFacetedProjectWorkingCopy facetedWorkingCopy = fp.createWorkingCopy();
> facetedWorkingCopy.setFixedProjectFacets(fixedFacets);
> Is there any option to install a facet and also set it to be a fixed
> facet, programatically?
I am not understanding what exactly you are having a problem with. Either
of the approaches that you've described will work, although the working
copy technique is the recommended pattern, especially when you need to
make several changes to the project. Just make sure you didn't forget to
call IFacetedPrjectWorkingCopy.commitChanges() when you are done.
- Konstantin
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