diff options
Diffstat (limited to 'tags/java/sca/2.0-M4-RC3/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java')
| -rw-r--r-- | tags/java/sca/2.0-M4-RC3/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java | 369 |
1 files changed, 369 insertions, 0 deletions
diff --git a/tags/java/sca/2.0-M4-RC3/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java b/tags/java/sca/2.0-M4-RC3/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java new file mode 100644 index 0000000000..4be947f125 --- /dev/null +++ b/tags/java/sca/2.0-M4-RC3/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java @@ -0,0 +1,369 @@ +/* + * 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.node.impl; + +import java.io.ByteArrayOutputStream; +//import java.lang.management.ManagementFactory; +import java.util.ArrayList; +import java.util.List; +import java.util.logging.Level; +import java.util.logging.Logger; + +//import javax.management.MBeanServer; +import javax.xml.stream.XMLOutputFactory; + +import org.apache.tuscany.sca.assembly.Component; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.assembly.CompositeService; +import org.apache.tuscany.sca.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.Service; +import org.apache.tuscany.sca.common.java.io.IOHelper; +import org.apache.tuscany.sca.context.CompositeContext; +import org.apache.tuscany.sca.context.ThreadMessageContext; +import org.apache.tuscany.sca.contribution.Contribution; +import org.apache.tuscany.sca.contribution.processor.ProcessorContext; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.FactoryExtensionPoint; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.core.invocation.ProxyFactory; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.node.Client; +import org.apache.tuscany.sca.node.Node; +import org.apache.tuscany.sca.node.NodeFinder; +import org.apache.tuscany.sca.node.configuration.NodeConfiguration; +import org.apache.tuscany.sca.node.management.NodeManager; +import org.apache.tuscany.sca.runtime.ActivationException; +import org.apache.tuscany.sca.runtime.CompositeActivator; +import org.apache.tuscany.sca.runtime.DomainRegistryFactory; +import org.apache.tuscany.sca.runtime.EndpointRegistry; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentContext; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.oasisopen.sca.ServiceReference; +import org.oasisopen.sca.ServiceRuntimeException; +import org.oasisopen.sca.ServiceUnavailableException; + +/** + * An SCA Node that is managed by the NodeManager + */ +public class NodeImpl implements Node, Client { + private static final Logger logger = Logger.getLogger(NodeImpl.class.getName()); + private ProxyFactory proxyFactory; + private CompositeActivator compositeActivator; + private CompositeContext compositeContext; + private Composite domainComposite; + private NodeConfiguration configuration; + private NodeFactoryImpl manager; + private List<Contribution> contributions; + private NodeManager mbean; + + /** + * Create a node from the configuration + * @param manager + * @param configuration + */ + public NodeImpl(NodeFactoryImpl manager, NodeConfiguration configuration) { + super(); + this.configuration = configuration; + this.manager = manager; + } + + /** + * Create a node from the configuration and loaded contributions + * @param manager + * @param configuration + * @param contributions + */ + public NodeImpl(NodeFactoryImpl manager, NodeConfiguration configuration, List<Contribution> contributions) { + super(); + this.configuration = configuration; + this.manager = manager; + this.contributions = new ArrayList<Contribution>(contributions); + } + + public String getURI() { + return getConfiguration().getURI(); + } + + public void destroy() { + } + + public Node start() { + logger.log(Level.INFO, "Starting node: " + configuration.getURI() + " domain: " + configuration.getDomainName()); + + manager.init(); + manager.addNode(configuration, this); + this.proxyFactory = manager.proxyFactory; + UtilityExtensionPoint utilities = manager.registry.getExtensionPoint(UtilityExtensionPoint.class); + + DomainRegistryFactory domainRegistryFactory = utilities.getUtility(DomainRegistryFactory.class); + EndpointRegistry endpointRegistry = + domainRegistryFactory.getEndpointRegistry(configuration.getDomainRegistryURI(), configuration + .getDomainURI()); + + this.compositeActivator = utilities.getUtility(CompositeActivator.class); + try { + Monitor monitor = manager.monitorFactory.createMonitor(); + ProcessorContext context = new ProcessorContext(monitor); + + // Set up the thead context monitor + Monitor tcm = manager.monitorFactory.setContextMonitor(monitor); + try { + if (contributions == null) { + contributions = manager.loadContributions(configuration, context); + } + domainComposite = manager.configureNode(configuration, contributions, context); + + this.compositeContext = + new CompositeContextImpl(manager.registry, endpointRegistry, domainComposite); + } finally { + // Reset the thread context monitor + manager.monitorFactory.setContextMonitor(tcm); + } + + // Activate the composite + compositeActivator.activate(compositeContext, domainComposite); + + // Start the composite + compositeActivator.start(compositeContext, domainComposite); + + NodeFinder.addNode(IOHelper.createURI(configuration.getDomainURI()), this); + + // FIXME: [rfeng] We should turn the management capability into a system utility. + // In certain environment such as Google App Engine, the JMX API is not allowed + try { + /* + MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer(); + mbean = new NodeManager(this); + mBeanServer.registerMBean(mbean, mbean.getName()); + */ + /* + LocateRegistry.createRegistry(9999); + JMXServiceURL url = + new JMXServiceURL("service:jmx:rmi:///jndi/rmi://localhost:9999/server"); + JMXConnectorServer connectorServer = JMXConnectorServerFactory.newJMXConnectorServer(url, null, mBeanServer); + connectorServer.start(); + */ + } catch (Throwable e) { + // Ignore the error for now + mbean = null; + logger.log(Level.SEVERE, e.getMessage(), e); + } + + return this; + + } catch (Throwable e) { + throw new IllegalStateException(e); + } + + } + + public void stop() { + logger.log(Level.INFO, "Stopping node: " + configuration.getURI()); + + try { + if (compositeActivator == null) { + return; + } + + /* + if (mbean != null) { + try { + MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer(); + mBeanServer.unregisterMBean(mbean.getName()); + } catch (Throwable e) { + logger.log(Level.SEVERE, e.getMessage(), e); + } finally { + mbean = null; + } + } + */ + + NodeFinder.removeNode(this); + if( domainComposite != null ) { + + // Stop the composite + compositeActivator.stop(compositeContext, domainComposite); + + // Deactivate the composite + compositeActivator.deactivate(domainComposite); + + } // end if + + manager.removeNode(configuration); + manager.registry.getExtensionPoint(UtilityExtensionPoint.class).removeUtility(compositeActivator); + this.compositeActivator = null; + this.proxyFactory = null; + this.domainComposite = null; + this.compositeContext = null; + + ThreadMessageContext.removeMessageContext(); + + } catch (ActivationException e) { + throw new IllegalStateException(e); + } + + } + + @SuppressWarnings("unchecked") + public <B, R extends ServiceReference<B>> R cast(B target) throws IllegalArgumentException { + return (R)proxyFactory.cast(target); + } + + public <B> B getService(Class<B> businessInterface, String serviceName) { + + ServiceReference<B> serviceReference = getServiceReference(businessInterface, serviceName); + if (serviceReference == null) { + throw new ServiceRuntimeException("Service not found: " + serviceName); + } + return serviceReference.getService(); + } + + public <B> ServiceReference<B> getServiceReference(Class<B> businessInterface, String name) { + + // Extract the component name + String componentName; + String serviceName; + int i = name.indexOf('/'); + if (i != -1) { + componentName = name.substring(0, i); + serviceName = name.substring(i + 1); + + } else { + componentName = name; + serviceName = null; + } + + // Lookup the component + Component component = null; + + for (Component compositeComponent : domainComposite.getComponents()) { + if (compositeComponent.getName().equals(componentName)) { + component = compositeComponent; + } + } + + if (component == null) { + throw new ServiceUnavailableException("The service " + name + " has not been contributed to the domain"); + } + RuntimeComponentContext componentContext = null; + + // If the component is a composite, then we need to find the + // non-composite component that provides the requested service + if (component.getImplementation() instanceof Composite) { + for (ComponentService componentService : component.getServices()) { + if (serviceName == null || serviceName.equals(componentService.getName())) { + CompositeService compositeService = (CompositeService)componentService.getService(); + if (compositeService != null) { + componentContext = + ((RuntimeComponent)compositeService.getPromotedComponent()).getComponentContext(); + return componentContext.createSelfReference(businessInterface, compositeService + .getPromotedService()); + } + break; + } + } + // No matching service found + throw new ServiceRuntimeException("Composite service not found: " + name); + } else { + componentContext = ((RuntimeComponent)component).getComponentContext(); + if (serviceName != null) { + return componentContext.createSelfReference(businessInterface, serviceName); + } else { + return componentContext.createSelfReference(businessInterface); + } + } + } + + public NodeConfiguration getConfiguration() { + return configuration; + } + + public ExtensionPointRegistry getExtensionPoints() { + return manager.getExtensionPoints(); + } + + /** + * Get the service endpoints in this Node + * TODO: needs review, works for the very simple testcase but i expect there are + * other endpoints to be included + */ + public List<Endpoint> getServiceEndpoints() { + List<Endpoint> endpoints = new ArrayList<Endpoint>(); + if (compositeActivator != null) { + if (domainComposite != null) { + for (Component component : domainComposite.getComponents()) { + for (Service service : component.getServices()) { + // MJE 28/05/2009 - changed to RuntimeComponentService from RuntimeComponentServiceImpl + // - no need to access the Impl directly here + if (service instanceof RuntimeComponentService) { + endpoints.addAll(((RuntimeComponentService)service).getEndpoints()); + } + } + } + } + } + return endpoints; + } + + public Composite getDomainComposite() { + return domainComposite; + } + + public String dumpDomainComposite() { + + StAXArtifactProcessorExtensionPoint xmlProcessors = + getExtensionPoints().getExtensionPoint(StAXArtifactProcessorExtensionPoint.class); + StAXArtifactProcessor<Composite> compositeProcessor = + xmlProcessors.getProcessor(Composite.class); + + return writeComposite(getDomainComposite(), compositeProcessor); + } + + private String writeComposite(Composite composite, StAXArtifactProcessor<Composite> compositeProcessor){ + ByteArrayOutputStream bos = new ByteArrayOutputStream(); + XMLOutputFactory outputFactory = + manager.getExtensionPoints().getExtensionPoint(FactoryExtensionPoint.class) + .getFactory(XMLOutputFactory.class); + + try { + compositeProcessor.write(composite, outputFactory.createXMLStreamWriter(bos), new ProcessorContext(manager.registry)); + } catch(Exception ex) { + return ex.toString(); + } + + String result = bos.toString(); + + // write out and nested composites + for (Component component : composite.getComponents()) { + if (component.getImplementation() instanceof Composite) { + result += + "\n<!-- XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX -->\n" + writeComposite((Composite)component + .getImplementation(), + compositeProcessor); + } + } + + return result; + } +} |