| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.cxf.dosgi.dsw.service; |
| |
| import java.util.List; |
| |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.InvalidSyntaxException; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.service.remoteserviceadmin.ExportRegistration; |
| import org.osgi.service.remoteserviceadmin.ImportRegistration; |
| import org.osgi.service.remoteserviceadmin.RemoteServiceAdminEvent; |
| import org.osgi.service.remoteserviceadmin.RemoteServiceAdminListener; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public class EventProducer { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(EventProducer.class); |
| private final BundleContext bctx; |
| private final EventAdminHelper eaHelper; |
| |
| public EventProducer(BundleContext bc) { |
| bctx = bc; |
| eaHelper = new EventAdminHelper(bctx); |
| } |
| |
| protected void publishNotification(List<ExportRegistration> erl) { |
| for (ExportRegistration exportRegistration : erl) { |
| publishNotification(exportRegistration); |
| } |
| } |
| |
| protected void publishNotification(ExportRegistration er) { |
| int type = er.getException() == null |
| ? RemoteServiceAdminEvent.EXPORT_REGISTRATION |
| : RemoteServiceAdminEvent.EXPORT_ERROR; |
| notify(type, null, er); |
| } |
| |
| protected void publishNotification(ImportRegistration ir) { |
| int type = ir.getException() == null |
| ? RemoteServiceAdminEvent.IMPORT_REGISTRATION |
| : RemoteServiceAdminEvent.IMPORT_ERROR; |
| notify(type, ir, null); |
| } |
| |
| public void notifyRemoval(ExportRegistration er) { |
| notify(RemoteServiceAdminEvent.EXPORT_UNREGISTRATION, null, er); |
| } |
| |
| public void notifyRemoval(ImportRegistration ir) { |
| notify(RemoteServiceAdminEvent.IMPORT_UNREGISTRATION, ir, null); |
| } |
| |
| // only one of ir or er must be set, and the other must be null |
| private void notify(int type, ImportRegistration ir, ExportRegistration er) { |
| try { |
| RemoteServiceAdminEvent event = ir != null |
| ? new RemoteServiceAdminEvent(type, bctx.getBundle(), ir.getImportReference(), ir.getException()) |
| : new RemoteServiceAdminEvent(type, bctx.getBundle(), er.getExportReference(), er.getException()); |
| notifyListeners(event); |
| eaHelper.notifyEventAdmin(event); |
| } catch (IllegalStateException ise) { |
| LOG.debug("can't send notifications since bundle context is no longer valid"); |
| } |
| } |
| |
| @SuppressWarnings({ |
| "rawtypes", "unchecked" |
| }) |
| private void notifyListeners(RemoteServiceAdminEvent rsae) { |
| try { |
| ServiceReference[] listenerRefs = bctx.getServiceReferences( |
| RemoteServiceAdminListener.class.getName(), null); |
| if (listenerRefs != null) { |
| for (ServiceReference sref : listenerRefs) { |
| RemoteServiceAdminListener rsal = (RemoteServiceAdminListener)bctx.getService(sref); |
| if (rsal != null) { |
| try { |
| Bundle bundle = sref.getBundle(); |
| if (bundle != null) { |
| LOG.debug("notify RemoteServiceAdminListener {} of bundle {}", |
| rsal, bundle.getSymbolicName()); |
| rsal.remoteAdminEvent(rsae); |
| } |
| } finally { |
| bctx.ungetService(sref); |
| } |
| } |
| } |
| } |
| } catch (InvalidSyntaxException e) { |
| LOG.error(e.getMessage(), e); |
| } |
| } |
| } |