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package org.eclipse.papyrus.infra.table.efacet.queries;
import org.eclipse.papyrus.infra.core.editorsfactory.IPageIconsRegistry;
import org.eclipse.papyrus.infra.core.editorsfactory.IPageIconsRegistryExtended;
import org.eclipse.papyrus.infra.core.editorsfactory.PageIconsRegistry;
import org.eclipse.papyrus.infra.core.services.ServiceException;
import org.eclipse.papyrus.infra.core.utils.EditorUtils;
/**
*
* An abstract class to get the iconRegistery
*
*/
//TODO duplicated code from modelexplorer.views
//TODO should be refactored and store into an upper plugin like oep.infra.core.xxx
public abstract class AbstractGetEditorIconQuery {//we don't need to implements IJavaModelQuery here
/**
* the icon registry
*/
private static IPageIconsRegistry editorRegistry;
/**
* Get the EditorRegistry used to create editor instances. This default
* implementation return the singleton eINSTANCE. This method can be
* subclassed to return another registry.
*
* @return the singleton eINSTANCE of editor registry
*/
protected IPageIconsRegistryExtended getEditorRegistry() {
if(editorRegistry == null) {
editorRegistry = createEditorRegistry();
}
if(!(editorRegistry instanceof IPageIconsRegistryExtended)) {
throw new RuntimeException("The editor registry do not implement IPageIconsRegistryExtended");////$NON-NLS-1$
}
return (IPageIconsRegistryExtended)editorRegistry;
}
/**
* Return the EditorRegistry for nested editor descriptors. Subclass should
* implements this method in order to return the registry associated to the
* extension point namespace.
*
* @return the EditorRegistry for nested editor descriptors
* FIXME : use a deprecated method
*/
protected IPageIconsRegistry createEditorRegistry() {
try {
return EditorUtils.getServiceRegistry().getService(IPageIconsRegistry.class);
} catch (final ServiceException e) {
// Not found, return an empty one which return null for each
// request.
return new PageIconsRegistry();
}
}
}
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