public static boolean isJSPModel(IDOMModel model) {
final IContentTypeManager typeManager = Platform.getContentTypeManager();
final IStructuredDocumentContext context = IStructuredDocumentContextFactory.INSTANCE.getContext(model.getStructuredDocument(), 0);
final IWorkspaceContextResolver resolver = IStructuredDocumentContextResolverFactory.INSTANCE.getWorkspaceContextResolver(context);
final IFile file = (IFile)resolver.getResource();
final IContentType contentType =
typeManager.findContentTypeFor(file.getName());
return contentType.isKindOf(JSP_CONTENTTYPE);
}