| Delayed coloring of shapes throws exception [message #917931] |
Thu, 20 September 2012 11:17  |
Eclipse User |
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Hello,
i am trying to color the shapes of my diagram with a delay of i.e. 1 sec programmaticly.
So what am i doing. First i start a new thread by clicking a menu button, then i iterate the outgoing connections of a container color them, wait a second, move to a target and start again iterating the connections and so on...
But sometimes i get a ConcurrentModificationException.
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at org.eclipse.graphiti.ui.internal.editor.DiagramRefreshJob.runInUIThread(DiagramRefreshJob.java:101)
at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4140)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3757)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2701)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2665)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2499)
at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:679)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:668)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:123)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
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:344)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.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:622)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:577)
at org.eclipse.equinox.launcher.Main.run(Main.java:1410)
at org.eclipse.equinox.launcher.Main.main(Main.java:1386)
The menu button:
public class MenuStartSim implements IWorkbenchWindowActionDelegate {
public void run(IAction action) {
new Simulation();
}
}
public class Simulation implements Runnable{
TransactionalEditingDomain editingDomain = null;
IDiagramTypeProvider diagramTypeProvider = null;
IFeatureProvider featureProvider = null;
Diagram diagram = null;
public Simulation {
IWorkbench wb = PlatformUI.getWorkbench();
IWorkbenchWindow win = wb.getActiveWorkbenchWindow();
IWorkbenchPage page = win.getActivePage();
IEditorPart editor = page.getActiveEditor();
if(editor instanceof org.eclipse.graphiti.platform.IDiagramEditor) {
IDiagramEditor graphitiEditor = (IDiagramEditor) editor;
editingDomain = graphitiEditor.getEditingDomain();
diagramTypeProvider = graphitiEditor.getDiagramTypeProvider();
featureProvider = diagramTypeProvider.getFeatureProvider();
diagram = diagramTypeProvider.getDiagram();
}
new Thread(this).start();
}
public void run(){
starting();
}
void nextStep(EList<Connection> incoming){
try {
colorTargets(incoming); //color the shapes
TimeUnit.SECONDS.sleep( TaskmodelSimulationConfig.configSpeed );
findTargets(incoming); //find new connections + call nextStep with new connections
} catch ( InterruptedException e ) {
}
}
}
So what can i do? there has do be a problem with the given threads, but i dont know how to handle the exception.
I hope someone can help me.
Thanks in advance.
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