diff options
Diffstat (limited to 'java/sca/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/TopologyManagerImpl.java')
| -rw-r--r-- | java/sca/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/TopologyManagerImpl.java | 410 |
1 files changed, 0 insertions, 410 deletions
diff --git a/java/sca/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/TopologyManagerImpl.java b/java/sca/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/TopologyManagerImpl.java deleted file mode 100644 index 1967fa6e4a..0000000000 --- a/java/sca/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/TopologyManagerImpl.java +++ /dev/null @@ -1,410 +0,0 @@ -/* - * 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.tuscany.sca.osgi.remoteserviceadmin.impl; - -import static org.apache.tuscany.sca.implementation.osgi.OSGiProperty.SERVICE_EXPORTED_INTERFACES; -import static org.apache.tuscany.sca.osgi.remoteserviceadmin.RemoteConstants.SERVICE_EXPORTED_CONFIGS; -import static org.apache.tuscany.sca.osgi.remoteserviceadmin.RemoteConstants.SERVICE_IMPORTED; - -import java.util.Collection; -import java.util.Dictionary; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Hashtable; -import java.util.Iterator; -import java.util.List; -import java.util.Map; -import java.util.Set; -import java.util.logging.Level; -import java.util.logging.Logger; - -import org.apache.tuscany.sca.common.java.collection.CollectionMap; -import org.apache.tuscany.sca.core.LifeCycleListener; -import org.apache.tuscany.sca.osgi.remoteserviceadmin.EndpointDescription; -import org.apache.tuscany.sca.osgi.remoteserviceadmin.EndpointListener; -import org.apache.tuscany.sca.osgi.remoteserviceadmin.ExportRegistration; -import org.apache.tuscany.sca.osgi.remoteserviceadmin.ImportRegistration; -import org.apache.tuscany.sca.osgi.remoteserviceadmin.RemoteServiceAdmin; -import org.apache.tuscany.sca.osgi.remoteserviceadmin.RemoteServiceAdminEvent; -import org.apache.tuscany.sca.osgi.remoteserviceadmin.RemoteServiceAdminListener; -import org.osgi.framework.Bundle; -import org.osgi.framework.BundleContext; -import org.osgi.framework.Constants; -import org.osgi.framework.Filter; -import org.osgi.framework.InvalidSyntaxException; -import org.osgi.framework.ServiceReference; -import org.osgi.framework.ServiceRegistration; -import org.osgi.framework.hooks.service.ListenerHook; -import org.osgi.util.tracker.ServiceTracker; -import org.osgi.util.tracker.ServiceTrackerCustomizer; - -/** - * Implementation of Remote Controller - */ -public class TopologyManagerImpl implements ListenerHook, RemoteServiceAdminListener, EndpointListener, - ServiceTrackerCustomizer, LifeCycleListener /*, EventHook */{ - private final static Logger logger = Logger.getLogger(TopologyManagerImpl.class.getName()); - public final static String ENDPOINT_LOCAL = "service.local"; - - private BundleContext context; - private ServiceTracker remoteAdmins; - - private ServiceRegistration registration; - private ServiceRegistration endpointListener; - - private ServiceTracker remotableServices; - - // Service listeners keyed by the filter - private CollectionMap<String, ListenerInfo> serviceListeners = new CollectionMap<String, ListenerInfo>(); - - private CollectionMap<ServiceReference, ExportRegistration> exportedServices = - new CollectionMap<ServiceReference, ExportRegistration>(); - private CollectionMap<EndpointDescription, ImportRegistration> importedServices = - new CollectionMap<EndpointDescription, ImportRegistration>(); - - private Filter remotableServiceFilter; - - public TopologyManagerImpl(BundleContext context) { - this.context = context; - } - - public void start() { - String filter = - "(& (!(" + SERVICE_IMPORTED - + "=*)) (" - + SERVICE_EXPORTED_INTERFACES - + "=*) (" - + SERVICE_EXPORTED_CONFIGS - + "=org.osgi.sca) )"; - try { - remotableServiceFilter = context.createFilter(filter); - } catch (InvalidSyntaxException e) { - // Ignore - } - - endpointListener = context.registerService(EndpointListener.class.getName(), this, null); - remoteAdmins = new ServiceTracker(this.context, RemoteServiceAdmin.class.getName(), null); - remoteAdmins.open(); - - // DO NOT register EventHook.class.getName() as it cannot report existing services - String interfaceNames[] = - new String[] {ListenerHook.class.getName(), RemoteServiceAdminListener.class.getName()}; - // The registration will trigger the added() method before registration is assigned - registration = context.registerService(interfaceNames, this, null); - - remotableServices = new ServiceTracker(context, remotableServiceFilter, this); - remotableServices.open(true); - - } - - /** - * @see org.osgi.framework.hooks.service.EventHook#event(org.osgi.framework.ServiceEvent, - * java.util.Collection) - */ - /* - public void event(ServiceEvent event, Collection contexts) { - ServiceReference reference = event.getServiceReference(); - if (!remotableServiceFilter.match(reference)) { - // Only export remotable services that are for SCA - return; - } - switch (event.getType()) { - case ServiceEvent.REGISTERED: - exportService(reference); - break; - case ServiceEvent.UNREGISTERING: - unexportService(reference); - break; - case ServiceEvent.MODIFIED: - case ServiceEvent.MODIFIED_ENDMATCH: - // First check if the property changes will impact - // Call remote admin to update the service - unexportService(reference); - exportService(reference); - break; - } - } - */ - - public Object addingService(ServiceReference reference) { - exportService(reference); - return reference.getBundle().getBundleContext().getService(reference); - } - - public void modifiedService(ServiceReference reference, Object service) { - unexportService(reference); - exportService(reference); - } - - public void removedService(ServiceReference reference, Object service) { - unexportService(reference); - } - - private void unexportService(ServiceReference reference) { - // Call remote admin to unexport the service - Collection<ExportRegistration> exportRegistrations = exportedServices.get(reference); - if (exportRegistrations != null) { - for (Iterator<ExportRegistration> i = exportRegistrations.iterator(); i.hasNext();) { - ExportRegistration exported = i.next(); - exported.close(); - i.remove(); - } - } - } - - private void exportService(ServiceReference reference) { - // Call remote admin to export the service - Object[] admins = remoteAdmins.getServices(); - if (admins == null) { - // Ignore - logger.warning("No RemoteAdmin services are available."); - } else { - for (Object ra : admins) { - RemoteServiceAdmin remoteAdmin = (RemoteServiceAdmin)ra; - List<ExportRegistration> exportRegistrations = remoteAdmin.exportService(reference, null); - if (exportRegistrations != null && !exportRegistrations.isEmpty()) { - exportedServices.putValues(reference, exportRegistrations); - } - } - } - } - - /** - * @see org.osgi.framework.hooks.service.ListenerHook#added(java.util.Collection) - */ - public void added(Collection listeners) { - synchronized (serviceListeners) { - try { - Collection<ListenerInfo> listenerInfos = (Collection<ListenerInfo>)listeners; - boolean changed = false; - for (ListenerInfo l : listenerInfos) { - if (!l.isRemoved() && l.getBundleContext() != context) { - String key = l.getFilter(); - if (key == null) { - // key = ""; - // FIXME: It should always match, let's ignore it for now - logger.warning("Service listner without a filter is skipped: " + l); - continue; - } - Collection<ListenerInfo> infos = serviceListeners.get(key); - if (infos == null) { - infos = new HashSet<ListenerInfo>(); - serviceListeners.put(key, infos); - } - infos.add(l); - changed = true; - } - } - if (changed) { - updateEndpointListenerScope(); - } - } catch (Throwable e) { - logger.log(Level.SEVERE, e.getMessage(), e); - if (e instanceof Error) { - throw (Error)e; - } else if (e instanceof RuntimeException) { - throw (RuntimeException)e; - } else { - // Should not happen - throw new RuntimeException(e); - } - } - } - } - - private void updateEndpointListenerScope() { - Set<String> filterSet = serviceListeners.keySet(); - - Dictionary<String, Object> props = new Hashtable<String, Object>(); - props.put(ENDPOINT_LISTENER_SCOPE, filterSet.toArray(new String[filterSet.size()])); - endpointListener.setProperties(props); - } - - private CollectionMap<Class<?>, ListenerInfo> findServiceListeners(EndpointDescription endpointDescription, - String matchedFilter) { - synchronized (serviceListeners) { - - // First find all the listeners that have the matching filter - Collection<ListenerInfo> listeners = serviceListeners.get(matchedFilter); - if (listeners == null) { - return null; - } - - // Try to partition the listeners by the interface classes - List<String> interfaceNames = endpointDescription.getInterfaces(); - CollectionMap<Class<?>, ListenerInfo> interfaceToListeners = new CollectionMap<Class<?>, ListenerInfo>(); - for (String i : interfaceNames) { - for (Iterator<ListenerInfo> it = listeners.iterator(); it.hasNext();) { - try { - ListenerInfo listener = it.next(); - if (listener.isRemoved()) { - it.remove(); - continue; - } - try { - Class<?> interfaceClass = listener.getBundleContext().getBundle().loadClass(i); - interfaceToListeners.putValue(interfaceClass, listener); - } catch (IllegalStateException e) { - logger.log(Level.WARNING, e.getMessage(), e); - // Ignore the exception - } - } catch (ClassNotFoundException e) { - // Ignore the listener as it cannot load the interface class - } - } - } - return interfaceToListeners; - } - } - - /** - * @see org.osgi.framework.hooks.service.ListenerHook#removed(java.util.Collection) - */ - public void removed(Collection listeners) { - synchronized (serviceListeners) { - try { - Collection<ListenerInfo> listenerInfos = (Collection<ListenerInfo>)listeners; - boolean changed = false; - for (ListenerInfo l : listenerInfos) { - if (registration != null && l.getBundleContext() != context) { - String key = l.getFilter(); - if (key == null) { - continue; - } - if (serviceListeners.removeValue(key, l)) { - changed = true; - } - } - } - if (changed) { - updateEndpointListenerScope(); - } - } catch (Throwable e) { - logger.log(Level.SEVERE, e.getMessage(), e); - if (e instanceof Error) { - throw (Error)e; - } else if (e instanceof RuntimeException) { - throw (RuntimeException)e; - } else { - // Should not happen - throw new RuntimeException(e); - } - } - } - } - - /** - * @see org.apache.tuscany.sca.osgi.service.remoteadmin.RemoteAdminListener#remoteAdminEvent(org.apache.tuscany.sca.osgi.service.remoteadmin.RemoteAdminEvent) - */ - public void remoteAdminEvent(RemoteServiceAdminEvent event) { - switch (event.getType()) { - case RemoteServiceAdminEvent.EXPORT_ERROR: - case RemoteServiceAdminEvent.EXPORT_REGISTRATION: - case RemoteServiceAdminEvent.EXPORT_UNREGISTRATION: - case RemoteServiceAdminEvent.EXPORT_WARNING: - break; - case RemoteServiceAdminEvent.IMPORT_ERROR: - case RemoteServiceAdminEvent.IMPORT_REGISTRATION: - case RemoteServiceAdminEvent.IMPORT_UNREGISTRATION: - case RemoteServiceAdminEvent.IMPORT_WARNING: - break; - } - } - - /** - * @see org.apache.tuscany.sca.osgi.remoteserviceadmin.EndpointListener#addEndpoint(org.apache.tuscany.sca.osgi.remoteserviceadmin.EndpointDescription, - * java.lang.String) - */ - public void endpointAdded(EndpointDescription endpoint, String matchedFilter) { - importService(endpoint, matchedFilter); - } - - /** - * @see org.apache.tuscany.sca.osgi.remoteserviceadmin.EndpointListener#removeEndpoint(org.apache.tuscany.sca.osgi.remoteserviceadmin.EndpointDescription) - */ - public void endpointRemoved(EndpointDescription endpoint, String matchedFilter) { - unimportService(endpoint); - } - - private void importService(EndpointDescription endpoint, String matchedFilter) { - Object[] admins = remoteAdmins.getServices(); - if (admins == null) { - logger.warning("No RemoteAdmin services are available."); - return; - } - - CollectionMap<Class<?>, ListenerInfo> interfaceToListeners = findServiceListeners(endpoint, matchedFilter); - for (Map.Entry<Class<?>, Collection<ListenerInfo>> e : interfaceToListeners.entrySet()) { - Class<?> interfaceClass = e.getKey(); - Collection<ListenerInfo> listeners = e.getValue(); - // Get a listener - ListenerInfo listener = listeners.iterator().next(); - Bundle bundle = listener.getBundleContext().getBundle(); - - Map<String, Object> props = new HashMap<String, Object>(endpoint.getProperties()); - props.put(Bundle.class.getName(), bundle); - props.put(Constants.OBJECTCLASS, new String[] {interfaceClass.getName()}); - EndpointDescription description = new EndpointDescription(props); - - if (admins != null) { - for (Object ra : admins) { - RemoteServiceAdmin remoteAdmin = (RemoteServiceAdmin)ra; - ImportRegistration importRegistration = remoteAdmin.importService(description); - if (importRegistration != null) { - importedServices.putValue(endpoint, importRegistration); - } - } - } - } - } - - private void unimportService(EndpointDescription endpoint) { - // Call remote admin to unimport the service - Collection<ImportRegistration> importRegistrations = importedServices.get(endpoint); - if (importRegistrations != null) { - for (Iterator<ImportRegistration> i = importRegistrations.iterator(); i.hasNext();) { - ImportRegistration imported = i.next(); - imported.close(); - i.remove(); - } - } - } - - public void stop() { - remotableServices.close(); - - if (registration != null) { - try { - registration.unregister(); - } catch (IllegalStateException e) { - // The service has been unregistered, ignore it - } - registration = null; - } - if (remoteAdmins != null) { - remoteAdmins.close(); - remoteAdmins = null; - } - synchronized (serviceListeners) { - serviceListeners.clear(); - } - } - -} |