diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0.1-RC1/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java | 443 |
1 files changed, 443 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java new file mode 100644 index 0000000000..453b4fb486 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/node-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java @@ -0,0 +1,443 @@ +/* + * 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.util.ArrayList; +import java.util.List; +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.xml.stream.XMLOutputFactory; +import javax.xml.stream.XMLStreamWriter; + +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.Endpoint; +import org.apache.tuscany.sca.assembly.Service; +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.interfacedef.Interface; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.node.Node; +import org.apache.tuscany.sca.node.configuration.NodeConfiguration; +import org.apache.tuscany.sca.node.extensibility.NodeActivator; +import org.apache.tuscany.sca.node.extensibility.NodeActivatorExtensionPoint; +import org.apache.tuscany.sca.node.extensibility.NodeExtension; +import org.apache.tuscany.sca.runtime.ActivationException; +import org.apache.tuscany.sca.runtime.CompositeActivator; +import org.apache.tuscany.sca.runtime.DomainRegistry; +import org.apache.tuscany.sca.runtime.DomainRegistryFactory; +import org.apache.tuscany.sca.runtime.ExtensibleDomainRegistryFactory; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +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, NodeExtension { + 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 nodeFactory; + private List<Contribution> contributions; + private NodeActivatorExtensionPoint nodeActivators; + // private NodeManager mbean; + + /** + * Create a node from the configuration + * @param manager + * @param configuration + */ + public NodeImpl(NodeFactoryImpl nodeFactory, NodeConfiguration configuration) { + super(); + this.configuration = configuration; + this.nodeFactory = nodeFactory; + this.nodeActivators = nodeFactory.getExtensionPointRegistry().getExtensionPoint(NodeActivatorExtensionPoint.class); + } + + /** + * 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.nodeFactory = manager; + this.nodeActivators = nodeFactory.getExtensionPointRegistry().getExtensionPoint(NodeActivatorExtensionPoint.class); + this.contributions = new ArrayList<Contribution>(contributions); + } + + public String getURI() { + return getConfiguration().getURI(); + } + + public String getDomainURI() { + return getConfiguration().getDomainURI(); + } + + public Node start() { + logger.log(nodeFactory.quietLogging? Level.FINE : Level.INFO, "Starting node: " + configuration.getURI() + " domain: " + configuration.getDomainURI()); + + try { + load(); + + this.proxyFactory = nodeFactory.proxyFactory; + + // Set up the node context + UtilityExtensionPoint utilities = nodeFactory.registry.getExtensionPoint(UtilityExtensionPoint.class); + this.compositeActivator = utilities.getUtility(CompositeActivator.class); + + DomainRegistryFactory domainRegistryFactory = + ExtensibleDomainRegistryFactory.getInstance(nodeFactory.registry); + DomainRegistry domainRegistry = + domainRegistryFactory.getEndpointRegistry(configuration.getDomainRegistryURI(), + configuration.getDomainURI()); + + this.compositeContext = + new CompositeContext(nodeFactory.registry, domainRegistry, domainComposite, + configuration.getDomainURI(), configuration.getURI(), nodeFactory + .getDeployer().getSystemDefinitions()); + // Pass down the context attributes + compositeContext.getAttributes().putAll(configuration.getAttributes()); + + // Add endpoint descriptions from the node configuration if the domain registry is local + if (!domainRegistry.isDistributed()) { + for (Endpoint e : configuration.getEndpointDescriptions()) { + domainRegistry.addEndpoint(e); + } + } + // Activate the composite + compositeActivator.activate(compositeContext, domainComposite); + + // Start the composite + compositeActivator.start(compositeContext, domainComposite); + + // 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); + } + + for(NodeActivator activator : nodeActivators.getNodeActivators()) { + activator.nodeStarted(this); + } + return this; + + } catch (Throwable e) { + throw new IllegalStateException(e); + } + + } + + public void load() throws Throwable { + nodeFactory.init(); + + nodeFactory.addNode(configuration, this); + + Monitor monitor = nodeFactory.monitorFactory.createMonitor(); + ProcessorContext context = new ProcessorContext(monitor); + + // Set up the thead context monitor + Monitor tcm = nodeFactory.monitorFactory.setContextMonitor(monitor); + try { + // Use the lack of the contributions collection as an indicator for when the node + // is being started for the first time. If it is the first time do all the work + // to read the contributions and create the domain composite + if (contributions == null) { + contributions = nodeFactory.loadContributions(configuration, context); + } + + if (domainComposite == null) { + domainComposite = nodeFactory.configureNode(configuration, contributions, context); + } + + + } finally { + // Reset the thread context monitor + nodeFactory.monitorFactory.setContextMonitor(tcm); + } + } + + public void stop() { + logger.log(nodeFactory.quietLogging? Level.FINE : 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; + } + } + */ + + if( domainComposite != null ) { + + // Stop the composite + compositeActivator.stop(compositeContext, domainComposite); + + // Deactivate the composite + compositeActivator.deactivate(domainComposite); + + } // end if + + // Remove the external endpoint descriptions from node.xml + DomainRegistry domainRegistry = compositeContext.getEndpointRegistry(); + if (!domainRegistry.isDistributed()) { + for (Endpoint e : configuration.getEndpointDescriptions()) { + domainRegistry.removeEndpoint(e); + } + } + + nodeFactory.removeNode(configuration); +/* + this.compositeActivator = null; + this.proxyFactory = null; + this.domainComposite = null; + this.compositeContext = null; +*/ + + for(NodeActivator activator : nodeActivators.getNodeActivators()) { + activator.nodeStopped(this); + } + + 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 = null; + String serviceName = null; + if (name != null) { + 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 (componentName == null) { + for (ComponentService service : compositeComponent.getServices()) { + Interface intf = service.getInterfaceContract().getInterface(); + if (intf instanceof JavaInterface) { + JavaInterface ji = (JavaInterface)intf; + if (ji.getJavaClass() == businessInterface) { + return ((RuntimeComponent)compositeComponent).getComponentContext() + .createSelfReference(businessInterface, service); + } + } + } + } + if (compositeComponent.getName().equals(componentName)) { + component = compositeComponent; + break; + } + } + + if (component == null) { + throw new ServiceUnavailableException("The service " + name + " has not been contributed to the domain"); + } + + return ((RuntimeComponent)component).getServiceReference(businessInterface, serviceName); + } + + public NodeConfiguration getConfiguration() { + return configuration; + } + + public ExtensionPointRegistry getExtensionPointRegistry() { + return nodeFactory.getExtensionPointRegistry(); + } + + /** + * 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 = + getExtensionPointRegistry().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 = + nodeFactory.getExtensionPointRegistry().getExtensionPoint(FactoryExtensionPoint.class) + .getFactory(XMLOutputFactory.class); + + try { + XMLStreamWriter xmlStreamWriter = outputFactory.createXMLStreamWriter(bos); + compositeProcessor.write(composite, xmlStreamWriter, new ProcessorContext(nodeFactory.registry)); + xmlStreamWriter.flush(); + } 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; + } + + public List<Contribution> getContributions() { + return contributions; + } + + @Override + public String getEndpointAddress(String serviceBindingName) { + if (serviceBindingName == null) { + throw new IllegalArgumentException("Service binding name cannot be null"); + } + + // Calculate the names for compoment/service/binding + String[] parts = serviceBindingName.split("/"); + String componentName = parts[0]; + String serviceName = parts.length >= 2 ? parts[1] : null; + String bindingName = parts.length >= 3 ? parts[2] : serviceName; + + if (domainComposite != null) { + for (Component component : domainComposite.getComponents()) { + if (!component.getName().equals(componentName)) { + continue; + } + for (Service service : component.getServices()) { + if (serviceName != null && !service.getName().equals(serviceName)) { + continue; + } + if (service instanceof RuntimeComponentService) { + for (Endpoint ep : ((RuntimeComponentService)service).getEndpoints()) { + if (bindingName == null || bindingName.equals(ep.getBinding().getName())) { + return ep.getDeployedURI(); + } + } + } + } + } + } + return null; + } + +} |