diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service')
5 files changed, 790 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/AbstractDiscoveryService.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/AbstractDiscoveryService.java new file mode 100644 index 0000000000..fd57dbded8 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/AbstractDiscoveryService.java @@ -0,0 +1,265 @@ +/* + * 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.service.discovery.impl; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.Dictionary; +import java.util.Hashtable; +import java.util.Iterator; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.LifeCycleListener; +import org.apache.tuscany.sca.node.NodeFactory; +import org.apache.tuscany.sca.node.impl.NodeFactoryImpl; +import org.apache.tuscany.sca.osgi.remoteserviceadmin.impl.OSGiHelper; +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleContext; +import org.osgi.framework.Constants; +import org.osgi.framework.Filter; +import org.osgi.framework.ServiceReference; +import org.osgi.service.remoteserviceadmin.EndpointDescription; +import org.osgi.service.remoteserviceadmin.EndpointListener; +import org.osgi.service.remoteserviceadmin.RemoteConstants; +import org.osgi.util.tracker.ServiceTracker; + +/** + * + */ +public abstract class AbstractDiscoveryService implements Discovery, LifeCycleListener { + protected final static int ADDED = 0x1; + protected final static int REMOVED = 0x2; + protected final static int MODIFIED = 0x4; + + protected final static Logger logger = Logger.getLogger(AbstractDiscoveryService.class.getName()); + + protected BundleContext context; + protected ExtensionPointRegistry registry; + // private WorkScheduler workScheduler; + + private Map<EndpointListener, Collection<String>> listenersToFilters = + new ConcurrentHashMap<EndpointListener, Collection<String>>(); + + protected Map<EndpointDescription, Bundle> endpointDescriptions = + new ConcurrentHashMap<EndpointDescription, Bundle>(); + private ServiceTracker trackerTracker; + + public AbstractDiscoveryService(BundleContext context) { + super(); + this.context = context; + } + + public void start() { + getExtensionPointRegistry(); + // UtilityExtensionPoint utilityExtensionPoint = registry.getExtensionPoint(UtilityExtensionPoint.class); + // this.workScheduler = utilityExtensionPoint.getUtility(WorkScheduler.class); + + // track the registration of EndpointListener + trackerTracker = new ServiceTracker(this.context, EndpointListener.class.getName(), null) { + public Object addingService(ServiceReference reference) { + Object result = super.addingService(reference); + cacheTracker(reference, result); + return result; + } + + public void modifiedService(ServiceReference reference, Object service) { + super.modifiedService(reference, service); + updateTracker(reference, service); + } + + public void removedService(ServiceReference reference, Object service) { + super.removedService(reference, service); + clearTracker(service); + } + }; + + trackerTracker.open(); + } + + public void stop() { + trackerTracker.close(); + } + + protected ExtensionPointRegistry getExtensionPointRegistry() { + NodeFactoryImpl factory = (NodeFactoryImpl)NodeFactory.getInstance(); + factory.init(); + ServiceTracker tracker = new ServiceTracker(context, ExtensionPointRegistry.class.getName(), null); + tracker.open(); + // tracker.waitForService(1000); + registry = (ExtensionPointRegistry)tracker.getService(); + tracker.close(); + return registry; + } + + protected Dictionary<String, Object> getProperties() { + Dictionary headers = context.getBundle().getHeaders(); + Hashtable<String, Object> props = new Hashtable<String, Object>(); + props.put(PRODUCT_NAME, "Apache Tuscany SCA"); + props.put(PRODUCT_VERSION, headers.get(Constants.BUNDLE_VERSION)); + props.put(VENDOR_NAME, headers.get(Constants.BUNDLE_VENDOR)); + // props.put(SUPPORTED_PROTOCOLS, new String[] {"local", "org.osgi.sca"}); + return props; + } + + private void cacheTracker(ServiceReference reference, Object service) { + if (service instanceof EndpointListener) { + EndpointListener listener = (EndpointListener)service; + Collection<String> filters = null; + synchronized (this) { + filters = addTracker(reference, listener, EndpointListener.ENDPOINT_LISTENER_SCOPE); + // Take a snapshot of the endpoints + triggerCallbacks(null, filters, listener); + } + } + } + + private void clearTracker(Object service) { + if (service instanceof EndpointListener) { + synchronized (this) { + removeTracker((EndpointListener)service); + } + } + } + + private void updateTracker(ServiceReference reference, Object service) { + if (service instanceof EndpointListener) { + EndpointListener listener = (EndpointListener)service; + Collection<String> oldFilters = null; + Collection<String> newFilters = null; + synchronized (this) { + if (logger.isLoggable(Level.FINE)) { + logger.fine("updating listener: " + listener); + } + oldFilters = removeTracker(listener); + newFilters = addTracker(reference, listener, EndpointListener.ENDPOINT_LISTENER_SCOPE); + triggerCallbacks(oldFilters, newFilters, listener); + } + } + } + + private void triggerCallbacks(Collection<String> oldInterest, + Collection<String> newInterest, + EndpointListener listener) { + // compute delta between old & new interfaces/filters and + // trigger callbacks for any entries in servicesInfo that + // match any *additional* interface/filters + Collection<String> deltaInterest = getDelta(oldInterest, newInterest); + + Iterator<String> i = deltaInterest.iterator(); + while (i.hasNext()) { + String next = i.next(); + for (EndpointDescription sd : endpointDescriptions.keySet()) { + triggerCallbacks(listener, next, sd, ADDED); + } + } + // Find removed filters + deltaInterest = getDelta(newInterest, oldInterest); + + i = deltaInterest.iterator(); + while (i.hasNext()) { + String next = i.next(); + for (EndpointDescription sd : endpointDescriptions.keySet()) { + triggerCallbacks(listener, next, sd, REMOVED); + } + } + } + + private Collection<String> getDelta(Collection<String> oldInterest, Collection<String> newInterest) { + if (newInterest == null) { + newInterest = Collections.emptySet(); + } + + Collection<String> deltaInterest = new ArrayList<String>(newInterest); + if (oldInterest == null) { + oldInterest = Collections.emptySet(); + } + deltaInterest.removeAll(oldInterest); + return deltaInterest; + } + + /** + * Notify the endpoint listener + * @param listener + * @param matchedFilter + * @param endpoint + * @param type + */ + private static void notify(EndpointListener listener, String matchedFilter, EndpointDescription endpoint, int type) { + switch (type) { + case ADDED: + listener.endpointAdded(endpoint, matchedFilter); + break; + case REMOVED: + listener.endpointRemoved(endpoint, matchedFilter); + break; + case MODIFIED: + listener.endpointRemoved(endpoint, matchedFilter); + listener.endpointAdded(endpoint, matchedFilter); + break; + } + } + + private void triggerCallbacks(EndpointListener listener, + String matchedFilter, + EndpointDescription endpoint, + int type) { + // workScheduler.scheduleWork(new Notifier(listener, matchedFilter, endpoint, type)); + notify(listener, matchedFilter, endpoint, type); + } + + private boolean filterMatches(String filterValue, EndpointDescription sd) { + Filter filter = OSGiHelper.createFilter(context, filterValue); + Hashtable<String, Object> props = new Hashtable<String, Object>(sd.getProperties()); + // Add two faked properties to make the filter match + props.put(Constants.OBJECTCLASS, sd.getInterfaces()); + props.put(RemoteConstants.SERVICE_IMPORTED, "true"); + return filter != null ? filter.match(props) : false; + } + + private Collection<String> removeTracker(EndpointListener listener) { + return listenersToFilters.remove(listener); + } + + private Collection<String> addTracker(ServiceReference reference, EndpointListener listener, String property) { + Collection<String> collection = OSGiHelper.getStringCollection(reference, property); + if (collection != null && !collection.isEmpty()) { + listenersToFilters.put(listener, new ArrayList<String>(collection)); + } + return collection; + } + + protected void endpointChanged(EndpointDescription sd, int type) { + synchronized (this) { + for (Map.Entry<EndpointListener, Collection<String>> entry : listenersToFilters.entrySet()) { + for (String filter : entry.getValue()) { + if (filterMatches(filter, sd)) { + triggerCallbacks(entry.getKey(), filter, sd, type); + } + } + } + } + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/Discovery.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/Discovery.java new file mode 100644 index 0000000000..3ad1e53fee --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/Discovery.java @@ -0,0 +1,66 @@ +/* + * 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.service.discovery.impl; + +/** + * Every Discovery Provider registers a service implementing this interface. + * This service is registered with extra properties identified at the beginning + * of this interface to denote the name of the product providing Discovery + * functionality, its version, vendor, used protocols etc.. + * <p> + * Discovery allows to publish services exposed for remote access as well as to + * search for remote services. + * <p> + * Discovery service implementations usually rely on some discovery protocols or + * other information distribution means. + * + * @ThreadSafe + */ +public interface Discovery { + + /** + * ServiceRegistration property for the name of the Discovery product. + * <p> + * Value of this property is of type <code>String</code>. + */ + String PRODUCT_NAME = "osgi.remote.discovery.product"; + + /** + * ServiceRegistration property for the version of the Discovery product. + * <p> + * Value of this property is of type <code>String</code>. + */ + String PRODUCT_VERSION = "osgi.remote.discovery.product.version"; + + /** + * ServiceRegistration property for the Discovery product vendor name. + * <p> + * Value of this property is of type <code>String</code>. + */ + String VENDOR_NAME = "osgi.remote.discovery.vendor"; + + /** + * ServiceRegistration property that lists the discovery protocols used by + * this Discovery service. + * <p> + * Value of this property is of type + * <code>Collection (<? extends String>)</code>. + */ + String SUPPORTED_PROTOCOLS = "osgi.remote.discovery.supported_protocols"; +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/DiscoveryActivator.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/DiscoveryActivator.java new file mode 100644 index 0000000000..32bd10b77b --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/DiscoveryActivator.java @@ -0,0 +1,57 @@ +/** + * 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.service.discovery.impl; + +import java.util.ArrayList; +import java.util.List; + +import org.osgi.framework.BundleActivator; +import org.osgi.framework.BundleContext; +import org.osgi.framework.ServiceRegistration; + +public class DiscoveryActivator implements BundleActivator { + private List<AbstractDiscoveryService> discoveryServices = new ArrayList<AbstractDiscoveryService>(); + private List<ServiceRegistration> discoveryServiceRegistrations = new ArrayList<ServiceRegistration>(); + + public void start(BundleContext context) { + discoveryServices.add(new LocalDiscoveryService(context)); + + discoveryServices.add(new DomainDiscoveryService(context)); + + for (AbstractDiscoveryService service : discoveryServices) { + service.start(); + ServiceRegistration registration = + context.registerService(Discovery.class.getName(), service, service.getProperties()); + discoveryServiceRegistrations.add(registration); + } + } + + public void stop(BundleContext context) { + for (ServiceRegistration registration : discoveryServiceRegistrations) { + try { + registration.unregister(); + } catch (IllegalStateException e) { + // The service has been unregistered, ignore it + } + } + for (AbstractDiscoveryService service : discoveryServices) { + service.stop(); + } + } +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/DomainDiscoveryService.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/DomainDiscoveryService.java new file mode 100644 index 0000000000..f8b4c3be8c --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/DomainDiscoveryService.java @@ -0,0 +1,140 @@ +/* + * 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.service.discovery.impl; + +import static org.apache.tuscany.sca.osgi.remoteserviceadmin.impl.EndpointHelper.createEndpointDescription; + +import java.util.Dictionary; + +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.Implementation; +import org.apache.tuscany.sca.core.LifeCycleListener; +import org.apache.tuscany.sca.implementation.osgi.OSGiImplementation; +import org.apache.tuscany.sca.node.configuration.NodeConfiguration; +import org.apache.tuscany.sca.runtime.DomainRegistryFactory; +import org.apache.tuscany.sca.runtime.EndpointListener; +import org.apache.tuscany.sca.runtime.DomainRegistry; +import org.apache.tuscany.sca.runtime.ExtensibleDomainRegistryFactory; +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleContext; +import org.osgi.service.remoteserviceadmin.EndpointDescription; + +/** + * Discovery service based on the distributed SCA domain + */ +public class DomainDiscoveryService extends AbstractDiscoveryService implements EndpointListener { + private DomainRegistryFactory domainRegistryFactory; + private DomainRegistry domainRegistry; + + public DomainDiscoveryService(BundleContext context) { + super(context); + } + + public void start() { + super.start(); + this.domainRegistryFactory = ExtensibleDomainRegistryFactory.getInstance(registry); + domainRegistryFactory.addListener(this); + + // [rfeng] Starting of the endpoint registry takes a long time and it leaves the bundle + // state to be starting. When the registry is started, remote endpoints come in and that + // triggers the classloading from this bundle. + Thread thread = new Thread() { + public void run() { + startEndpointRegistry(); + } + }; + thread.start(); + } + + private synchronized void startEndpointRegistry() { + // The following code forced the start() of the domain registry in absense of services + String domainRegistryURI = context.getProperty("org.osgi.sca.domain.registry"); + if (domainRegistryURI == null) { + domainRegistryURI = NodeConfiguration.DEFAULT_DOMAIN_REGISTRY_URI; + } + String domainURI = context.getProperty("org.osgi.sca.domain.uri"); + if (domainURI == null) { + domainURI = NodeConfiguration.DEFAULT_DOMAIN_URI; + } + if (domainRegistry != null) { + domainRegistry = domainRegistryFactory.getEndpointRegistry(domainRegistryURI, domainURI); + } + } + + public void endpointAdded(Endpoint endpoint) { + Implementation impl = endpoint.getComponent().getImplementation(); + + /* + if (!(impl instanceof OSGiImplementation)) { + return; + } + */ + + BundleContext bundleContext = null; + // Remote endpoint doesn't have a bundle + if (!endpoint.isRemote()) { + OSGiImplementation osgiImpl = (OSGiImplementation)impl; + Bundle bundle = osgiImpl.getBundle(); + bundleContext = bundle != null ? bundle.getBundleContext() : null; + } + + // Notify the endpoint listeners + EndpointDescription description = createEndpointDescription(bundleContext, endpoint); + // Set the owning bundle to runtime bundle to avoid NPE + synchronized (this) { + endpointDescriptions.put(description, context.getBundle()); + endpointChanged(description, ADDED); + } + } + + public void endpointRemoved(Endpoint endpoint) { + EndpointDescription description = createEndpointDescription(context, endpoint); + synchronized (this) { + endpointDescriptions.remove(description); + endpointChanged(description, REMOVED); + } + } + + public void endpointUpdated(Endpoint oldEndpoint, Endpoint newEndpoint) { + // FIXME: This is a quick and dirty way for the update + endpointRemoved(oldEndpoint); + endpointAdded(newEndpoint); + } + + public void stop() { + if (domainRegistryFactory != null) { + domainRegistryFactory.removeListener(this); + if (domainRegistry instanceof LifeCycleListener) { + ((LifeCycleListener)domainRegistry).stop(); + } + domainRegistryFactory = null; + domainRegistry = null; + super.stop(); + } + } + + @Override + protected Dictionary<String, Object> getProperties() { + Dictionary<String, Object> props = super.getProperties(); + props.put(SUPPORTED_PROTOCOLS, new String[] {"org.osgi.sca"}); + return props; + } + +} diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/LocalDiscoveryService.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/LocalDiscoveryService.java new file mode 100644 index 0000000000..dc9ae096dd --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/service/discovery/impl/LocalDiscoveryService.java @@ -0,0 +1,262 @@ +/** + * 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.service.discovery.impl; + +import static org.apache.tuscany.sca.osgi.remoteserviceadmin.impl.OSGiHelper.getConfiguration; +import static org.osgi.service.remoteserviceadmin.RemoteConstants.ENDPOINT_FRAMEWORK_UUID; +import static org.osgi.service.remoteserviceadmin.RemoteConstants.ENDPOINT_ID; +import static org.osgi.service.remoteserviceadmin.RemoteConstants.ENDPOINT_SERVICE_ID; + +import java.net.URL; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Dictionary; +import java.util.HashMap; +import java.util.Iterator; +import java.util.Map; +import java.util.UUID; +import java.util.Map.Entry; +import java.util.logging.Level; + +import javax.xml.namespace.QName; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.deployment.Deployer; +import org.apache.tuscany.sca.implementation.osgi.SCAConfig; +import org.apache.tuscany.sca.implementation.osgi.ServiceDescription; +import org.apache.tuscany.sca.implementation.osgi.ServiceDescriptions; +import org.apache.tuscany.sca.osgi.remoteserviceadmin.impl.OSGiHelper; +import org.apache.tuscany.sca.policy.Intent; +import org.apache.tuscany.sca.policy.PolicySet; +import org.oasisopen.sca.ServiceRuntimeException; +import org.osgi.framework.Bundle; +import org.osgi.framework.BundleContext; +import org.osgi.framework.BundleEvent; +import org.osgi.framework.Constants; +import org.osgi.framework.Filter; +import org.osgi.framework.InvalidSyntaxException; +import org.osgi.service.remoteserviceadmin.EndpointDescription; +import org.osgi.util.tracker.BundleTracker; +import org.osgi.util.tracker.BundleTrackerCustomizer; +import org.osgi.util.tracker.ServiceTracker; + +public class LocalDiscoveryService extends AbstractDiscoveryService implements BundleTrackerCustomizer { + private Deployer deployer; + private BundleTracker bundleTracker; + private Collection<ExtenderConfiguration> extenders = new ArrayList<ExtenderConfiguration>(); + + public LocalDiscoveryService(BundleContext context) { + super(context); + } + + public void start() { + super.start(); + + UtilityExtensionPoint utilities = this.registry.getExtensionPoint(UtilityExtensionPoint.class); + this.deployer = utilities.getUtility(Deployer.class); + bundleTracker = new BundleTracker(context, Bundle.ACTIVE | Bundle.STARTING, this); + bundleTracker.open(); + } + + public static ServiceTracker getTracker(BundleContext context) { + Filter filter = null; + try { + filter = + context.createFilter("(& (" + Discovery.SUPPORTED_PROTOCOLS + + "=local) (" + + Constants.OBJECTCLASS + + "=" + + Discovery.class.getName() + + "))"); + } catch (InvalidSyntaxException e) { + throw new IllegalArgumentException(e); + } + return new ServiceTracker(context, filter, null); + } + + private EndpointDescription createEndpointDescription(ServiceDescription sd) { + Map<String, Object> props = new HashMap<String, Object>(sd.getProperties()); + props.put(Constants.OBJECTCLASS, sd.getInterfaces().toArray(new String[sd.getInterfaces().size()])); + if (!props.containsKey(ENDPOINT_SERVICE_ID)) { + props.put(ENDPOINT_SERVICE_ID, Long.valueOf(System.currentTimeMillis())); + } + if (!props.containsKey(ENDPOINT_FRAMEWORK_UUID)) { + props.put(ENDPOINT_FRAMEWORK_UUID, OSGiHelper.getFrameworkUUID(context)); + } + if (!props.containsKey(ENDPOINT_ID)) { + props.put(ENDPOINT_ID, UUID.randomUUID().toString()); + } + + EndpointDescription sed = new EndpointDescription(props); + return sed; + } + + private void removeServicesDeclaredInBundle(Bundle bundle) { + for (Iterator<Map.Entry<EndpointDescription, Bundle>> i = endpointDescriptions.entrySet().iterator(); i.hasNext();) { + Entry<EndpointDescription, Bundle> entry = i.next(); + if (entry.getValue().equals(bundle)) { + serviceDescriptionRemoved(entry.getKey()); + i.remove(); + } + } + } + + private void serviceDescriptionAdded(EndpointDescription endpointDescription) { + endpointChanged(endpointDescription, ADDED); + } + + private void serviceDescriptionRemoved(EndpointDescription endpointDescription) { + endpointChanged(endpointDescription, REMOVED); + } + + public void stop() { + if (bundleTracker != null) { + bundleTracker.close(); + } + super.stop(); + } + + public Object addingBundle(Bundle bundle, BundleEvent event) { + if (bundle.getHeaders().get(Constants.FRAGMENT_HOST) != null || bundle.getBundleId() == 0) { + // Ignore fragments + return null; + } + Collection<URL> scaConfigs = getConfiguration(bundle, "SCA-Configuration", "OSGI-INF/sca-config/*.xml"); + Collection<URL> descriptions = getConfiguration(bundle, "Remote-Service", null); + if (scaConfigs.isEmpty() && descriptions.isEmpty()) { + return null; + } + ExtenderConfiguration extender = new ExtenderConfiguration(); + for (URL url : scaConfigs) { + try { + SCAConfig scaConfig = deployer.loadXMLDocument(url, deployer.createMonitor()); + extender.scaConfigs.add(scaConfig); + } catch (Exception e) { + logger.log(Level.SEVERE, e.getMessage(), e); + throw new ServiceRuntimeException(e); + } + } + for (URL url : descriptions) { + try { + ServiceDescriptions sds = deployer.loadXMLDocument(url, deployer.createMonitor()); + extender.remoteServiceDescriptions.add(sds); + } catch (Exception e) { + logger.log(Level.SEVERE, e.getMessage(), e); + // throw new ServiceRuntimeException(e); + } + } + + // Add to the extenders before notifying the listeners (the endpoints may references to the config) + ExtenderConfiguration.validate(extenders, extender); + this.extenders.add(extender); + + // Notify + for (ServiceDescriptions sds : extender.getRemoteServiceDescriptions()) { + for (ServiceDescription sd : sds) { + EndpointDescription sed = createEndpointDescription(sd); + endpointDescriptions.put(sed, bundle); + serviceDescriptionAdded(sed); + } + } + + return extender; + } + + public void modifiedBundle(Bundle bundle, BundleEvent event, Object object) { + // STARTING --> ACTIVE + } + + public void removedBundle(Bundle bundle, BundleEvent event, Object object) { + if (object instanceof ExtenderConfiguration) { + extenders.remove((ExtenderConfiguration)object); + removeServicesDeclaredInBundle(bundle); + } + } + + public Collection<ExtenderConfiguration> getConfigurations() { + return extenders; + } + + public static class ExtenderConfiguration { + private Collection<SCAConfig> scaConfigs = new ArrayList<SCAConfig>(); + private Collection<ServiceDescriptions> remoteServiceDescriptions = new ArrayList<ServiceDescriptions>(); + + public Collection<ServiceDescriptions> getRemoteServiceDescriptions() { + return remoteServiceDescriptions; + } + + public Collection<SCAConfig> getSCAConfigs() { + return scaConfigs; + } + + public static void validate(Collection<ExtenderConfiguration> configs, ExtenderConfiguration newConfig) { + Map<QName, Binding> bindings = new HashMap<QName, Binding>(); + Map<QName, Intent> intents = new HashMap<QName, Intent>(); + Map<QName, PolicySet> policySets = new HashMap<QName, PolicySet>(); + + for (ExtenderConfiguration config : configs) { + for (SCAConfig c : config.getSCAConfigs()) { + addBindings(bindings, c); + addIntents(intents, c); + addPolicySets(policySets, c); + } + } + for (SCAConfig c : newConfig.getSCAConfigs()) { + addBindings(bindings, c); + addIntents(intents, c); + addPolicySets(policySets, c); + } + } + + private static void addIntents(Map<QName, Intent> intents, SCAConfig c) { + for (Intent i: c.getIntents()) { + if (intents.put(i.getName(), i) != null) { + throw new ServiceRuntimeException("Duplicate intent: " + i.getName()); + } + } + } + + private static void addPolicySets(Map<QName, PolicySet> policySets, SCAConfig c) { + for (PolicySet ps: c.getPolicySets()) { + if (policySets.put(ps.getName(), ps) != null) { + throw new ServiceRuntimeException("Duplicate policySet: " + ps.getName()); + } + } + } + + private static void addBindings(Map<QName, Binding> bindings, SCAConfig c) { + for (Binding b : c.getBindings()) { + QName name = new QName(c.getTargetNamespace(), b.getName()); + if (bindings.put(name, b) != null) { + throw new ServiceRuntimeException("Duplicate binding: " + name); + } + } + } + + } + + @Override + protected Dictionary<String, Object> getProperties() { + Dictionary<String, Object> props = super.getProperties(); + props.put(SUPPORTED_PROTOCOLS, new String[] {"local"}); + return props; + } + +} |