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Diffstat (limited to 'branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/OSGiServiceExporter.java')
-rw-r--r-- | branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/OSGiServiceExporter.java | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/OSGiServiceExporter.java b/branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/OSGiServiceExporter.java new file mode 100644 index 0000000000..d6cbe1a44b --- /dev/null +++ b/branches/sca-java-2.0-M4/modules/node-impl-osgi/src/main/java/org/apache/tuscany/sca/osgi/remoteserviceadmin/impl/OSGiServiceExporter.java @@ -0,0 +1,147 @@ +/* + * 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.osgi.remoteserviceadmin.impl.EndpointHelper.createEndpointDescription; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.Map; + +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.contribution.Contribution; +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.configuration.NodeConfiguration; +import org.apache.tuscany.sca.node.impl.NodeFactoryImpl; +import org.apache.tuscany.sca.node.impl.NodeImpl; +import org.apache.tuscany.sca.osgi.remoteserviceadmin.EndpointDescription; +import org.apache.tuscany.sca.osgi.remoteserviceadmin.ExportRegistration; +import org.apache.tuscany.sca.osgi.service.discovery.impl.LocalDiscoveryService; +import org.osgi.framework.BundleContext; +import org.osgi.framework.ServiceReference; +import org.osgi.util.tracker.ServiceTracker; +import org.osgi.util.tracker.ServiceTrackerCustomizer; + +/** + * Watching and exporting OSGi services + */ +public class OSGiServiceExporter implements ServiceTrackerCustomizer, LifeCycleListener { + private ExtensionPointRegistry registry; + private BundleContext context; + private NodeFactoryImpl nodeFactory; + private EndpointIntrospector introspector; + private ServiceTracker discoveryTracker; + + /** + * @param context + * @param clazz + * @param customizer + */ + public OSGiServiceExporter(BundleContext context) { + this.context = context; + } + + private synchronized void init() { + if (nodeFactory == null) { + this.nodeFactory = (NodeFactoryImpl)NodeFactory.newInstance(); + this.nodeFactory.init(); + this.discoveryTracker = LocalDiscoveryService.getTracker(context); + discoveryTracker.open(); + this.introspector = new EndpointIntrospector(context, getExtensionPointRegistry(), discoveryTracker); + } + } + + public void start() { + init(); + } + + public void stop() { + discoveryTracker.close(); + discoveryTracker = null; + introspector = null; + nodeFactory = null; + registry = null; + context = null; + } + + public Object addingService(ServiceReference reference) { + return exportService(reference, null); + } + + public List<ExportRegistration> exportService(ServiceReference reference, Map<String, Object> properties) { + // FIXME: [rfeng] We need to check if a corresponding endpoint has been exported + try { + Contribution contribution = introspector.introspect(reference, properties); + if (contribution != null) { + + NodeConfiguration configuration = nodeFactory.createNodeConfiguration(); + configuration.setURI(contribution.getURI()); + configuration.getExtensions().add(reference.getBundle()); + // FIXME: Configure the domain and node URI + NodeImpl node = new NodeImpl(nodeFactory, configuration, Collections.singletonList(contribution)); + node.start(); + List<ExportRegistration> exportedServices = new ArrayList<ExportRegistration>(); + Component component = contribution.getDeployables().get(0).getComponents().get(0); + ComponentService service = component.getServices().get(0); + for (Endpoint endpoint : service.getEndpoints()) { + EndpointDescription endpointDescription = createEndpointDescription(context, endpoint); + ExportRegistration exportRegistration = + new ExportRegistrationImpl(node, reference, endpointDescription); + exportedServices.add(exportRegistration); + } + return exportedServices; + } else { + return null; + } + } catch (Exception e) { + e.printStackTrace(); + return null; + } + } + + public void modifiedService(ServiceReference reference, Object service) { + removedService(reference, service); + exportService(reference, null); + } + + public void removedService(ServiceReference reference, Object service) { + List<ExportRegistration> exportedServices = (List<ExportRegistration>)service; + for(ExportRegistration exportRegistration: exportedServices) { + exportRegistration.close(); + } + } + + protected ExtensionPointRegistry getExtensionPointRegistry() { + if (registry == null) { + ServiceTracker tracker = new ServiceTracker(context, ExtensionPointRegistry.class.getName(), null); + tracker.open(); + // tracker.waitForService(1000); + registry = (ExtensionPointRegistry)tracker.getService(); + tracker.close(); + } + return registry; + } + +} |