+// static Session openAdminSession(Repository repository) {
+// return openAdminSession(repository, null);
+// }
+//
+// static Session openAdminSession(final Repository repository, final String workspaceName) {
+// LoginContext loginContext = loginAsDataAdmin();
+// return Subject.doAs(loginContext.getSubject(), new PrivilegedAction<Session>() {
+//
+// @Override
+// public Session run() {
+// try {
+// return repository.login(workspaceName);
+// } catch (RepositoryException e) {
+// throw new IllegalStateException("Cannot open admin session", e);
+// } finally {
+// try {
+// loginContext.logout();
+// } catch (LoginException e) {
+// throw new IllegalStateException(e);
+// }
+// }
+// }
+//
+// });
+// }
+//
+// static LoginContext loginAsDataAdmin() {
+// ClassLoader currentCl = Thread.currentThread().getContextClassLoader();
+// Thread.currentThread().setContextClassLoader(KernelUtils.class.getClassLoader());
+// LoginContext loginContext;
+// try {
+// loginContext = new LoginContext(NodeConstants.LOGIN_CONTEXT_DATA_ADMIN);
+// loginContext.login();
+// } catch (LoginException e1) {
+// throw new IllegalStateException("Could not login as data admin", e1);
+// } finally {
+// Thread.currentThread().setContextClassLoader(currentCl);
+// }
+// return loginContext;
+// }
+
+// static void doAsDataAdmin(Runnable action) {
+// LoginContext loginContext = loginAsDataAdmin();
+// Subject.doAs(loginContext.getSubject(), new PrivilegedAction<Void>() {
+//
+// @Override
+// public Void run() {
+// try {
+// action.run();
+// return null;
+// } finally {
+// try {
+// loginContext.logout();
+// } catch (LoginException e) {
+// throw new IllegalStateException(e);
+// }
+// }
+// }
+//
+// });
+// }
+
+ static void asyncOpen(ServiceTracker<?, ?> st) {
+ Runnable run = new Runnable() {
+
+ @Override
+ public void run() {
+ st.open();
+ }
+ };
+ Activator.getInternalExecutorService().execute(run);
+// new Thread(run, "Open service tracker " + st).start();
+ }
+
+ static BundleContext getBundleContext() {
+ return Activator.getBundleContext();
+ }
+
+ static boolean asBoolean(String value) {
+ if (value == null)
+ return false;
+ switch (value) {
+ case "true":
+ return true;
+ case "false":
+ return false;
+ default:
+ throw new IllegalArgumentException(
+ "Unsupported value for attribute " + DataModelNamespace.ABSTRACT + ": " + value);
+ }
+ }
+
+ private static URI safeUri(String uri) {
+ if (uri == null)
+ throw new IllegalArgumentException("URI cannot be null");
+ try {
+ return new URI(uri);
+ } catch (URISyntaxException e) {
+ throw new IllegalArgumentException("Badly formatted URI " + uri, e);