diff options
Diffstat (limited to 'sca-java-1.x/tags/1.3.1/modules/node2-impl/src/main/java')
2 files changed, 791 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.3.1/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeFactoryImpl.java b/sca-java-1.x/tags/1.3.1/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeFactoryImpl.java new file mode 100644 index 0000000000..b032a4fb9a --- /dev/null +++ b/sca-java-1.x/tags/1.3.1/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeFactoryImpl.java @@ -0,0 +1,54 @@ +/* + * 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 org.apache.tuscany.sca.node.SCAContribution; +import org.apache.tuscany.sca.node.SCANode2; +import org.apache.tuscany.sca.node.SCANode2Factory; + +/** + * Default implementation of an SCA node factory. + * + * @version $Rev$ $Date$ + */ +public class NodeFactoryImpl extends SCANode2Factory { + public NodeFactoryImpl() { + } + + @Override + public SCANode2 createSCANodeFromClassLoader(String compositeURI, ClassLoader classLoader) { + return new NodeImpl(classLoader, compositeURI); + } + + @Override + public SCANode2 createSCANodeFromURL(String configurationURI) { + return new NodeImpl(configurationURI); + } + + @Override + public SCANode2 createSCANode(String compositeURI, SCAContribution... contributions) { + return new NodeImpl(compositeURI, contributions); + } + + @Override + public SCANode2 createSCANode(String compositeURI, String compositeContent, SCAContribution... contributions) { + return new NodeImpl(compositeURI, compositeContent, contributions); + } +} diff --git a/sca-java-1.x/tags/1.3.1/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java b/sca-java-1.x/tags/1.3.1/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java new file mode 100644 index 0000000000..2d4b728d01 --- /dev/null +++ b/sca-java-1.x/tags/1.3.1/modules/node2-impl/src/main/java/org/apache/tuscany/sca/node/impl/NodeImpl.java @@ -0,0 +1,737 @@ +/* +* 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.File; +import java.io.IOException; +import java.io.InputStream; +import java.io.StringReader; +import java.net.MalformedURLException; +import java.net.URI; +import java.net.URL; +import java.net.URLClassLoader; +import java.net.URLConnection; +import java.security.AccessController; +import java.security.PrivilegedAction; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.xml.namespace.QName; +import javax.xml.stream.XMLInputFactory; +import javax.xml.stream.XMLStreamReader; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +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.contribution.Contribution; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.ContributionMetadata; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessor; +import org.apache.tuscany.sca.contribution.processor.StAXArtifactProcessorExtensionPoint; +import org.apache.tuscany.sca.contribution.service.ContributionService; +import org.apache.tuscany.sca.contribution.service.util.FileHelper; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.UtilityExtensionPoint; +import org.apache.tuscany.sca.core.assembly.ActivationException; +import org.apache.tuscany.sca.core.assembly.CompositeActivator; +import org.apache.tuscany.sca.host.embedded.impl.ReallySmallRuntime; +import org.apache.tuscany.sca.implementation.node.ConfiguredNodeImplementation; +import org.apache.tuscany.sca.implementation.node.NodeImplementationFactory; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.MonitorFactory; +import org.apache.tuscany.sca.monitor.Problem; +import org.apache.tuscany.sca.monitor.Problem.Severity; +import org.apache.tuscany.sca.node.SCAClient; +import org.apache.tuscany.sca.node.SCAContribution; +import org.apache.tuscany.sca.node.SCANode2; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentContext; +import org.osoa.sca.CallableReference; +import org.osoa.sca.ServiceReference; +import org.osoa.sca.ServiceRuntimeException; + +/** + * A local representation of the SCADomain running on a single node + * + * @version $Rev$ $Date$ + */ +public class NodeImpl implements SCANode2, SCAClient { + + private static final Logger logger = Logger.getLogger(NodeImpl.class.getName()); + + // The node configuration name, used for logging + private String configurationName; + + // The Tuscany runtime that does the hard work + private ReallySmallRuntime runtime; + private CompositeActivator compositeActivator; + private XMLInputFactory inputFactory; + private ModelFactoryExtensionPoint modelFactories; + private StAXArtifactProcessorExtensionPoint artifactProcessors; + private Monitor monitor; + + private ContributionMetadata metadata; + + // The composite loaded into this node + private Composite composite; + + /** + * Constructs a new SCA node. + * + * @param configuration the the node configuration information. + */ + NodeImpl(ConfiguredNodeImplementation configuration) { + configurationName = configuration.getURI(); + logger.log(Level.INFO, "Creating node: " + configuration.getURI()); + + try { + // Initialize the runtime + initRuntime(); + + URL configurationURL = new URL(configuration.getURI()); + + // Resolve contribution URLs + for (Contribution contribution : configuration.getContributions()) { + URL contributionURL = new URL(configurationURL, contribution.getLocation()); + contribution.setLocation(contributionURL.toString()); + } + + // Resolve composite URL + URL compositeURL = new URL(configurationURL, configuration.getComposite().getURI()); + configuration.getComposite().setURI(compositeURL.toString()); + + // Configure the node + configureNode(configuration); + + } catch (Exception e) { + throw new ServiceRuntimeException(e); + } + } + + /** + * Constructs a new SCA node. + * + * @param configurationURI the URI of the node configuration information. + */ + NodeImpl(String configurationURI) { + configurationName = configurationURI; + logger.log(Level.INFO, "Creating node: " + configurationName); + + try { + // Initialize the runtime + initRuntime(); + + // Read the node configuration feed + StAXArtifactProcessor<ConfiguredNodeImplementation> configurationProcessor = + artifactProcessors.getProcessor(ConfiguredNodeImplementation.class); + URL configurationURL = new URL(configurationURI); + InputStream is = configurationURL.openStream(); + XMLStreamReader reader = inputFactory.createXMLStreamReader(is); + reader.nextTag(); + ConfiguredNodeImplementation configuration = configurationProcessor.read(reader); + is.close(); + + // Resolve contribution URLs + for (Contribution contribution : configuration.getContributions()) { + URL contributionURL = new URL(configurationURL, contribution.getLocation()); + contribution.setLocation(contributionURL.toString()); + } + + // Resolve composite URL + URL compositeURL = new URL(configurationURL, configuration.getComposite().getURI()); + configuration.getComposite().setURI(compositeURL.toString()); + + // Configure the node + configureNode(configuration); + + } catch (Exception e) { + throw new ServiceRuntimeException(e); + } + } + + NodeImpl(ClassLoader classLoader, String compositeURI) { + configurationName = compositeURI; + logger.log(Level.INFO, "Creating node: " + configurationName); + + try { + // Initialize the runtime + initRuntime(); + + ConfiguredNodeImplementation config = findNodeConfiguration(compositeURI, classLoader); + configureNode(config); + } catch (Throwable e) { + throw new ServiceRuntimeException(e); + } + } + + private ConfiguredNodeImplementation findNodeConfiguration(final String compositeURI, ClassLoader classLoader) + throws Exception { + NodeImplementationFactory nodeImplementationFactory = + modelFactories.getFactory(NodeImplementationFactory.class); + ConfiguredNodeImplementation config = nodeImplementationFactory.createConfiguredNodeImplementation(); + + if (classLoader == null) { + classLoader = Thread.currentThread().getContextClassLoader(); + } + String contributionArtifactPath = compositeURI; + URL contributionArtifactURL = null; + if (compositeURI != null) { + contributionArtifactURL = getResource(classLoader, compositeURI); + if (contributionArtifactURL == null) { + throw new IllegalArgumentException("Composite not found: " + contributionArtifactPath); + } + composite = createComposite(contributionArtifactURL.toString()); + config.setComposite(composite); + } else { + + // Here the SCADomain was started without any reference to a composite file + // We are going to look for an sca-contribution.xml or sca-contribution-generated.xml + + // Look for META-INF/sca-contribution.xml + contributionArtifactPath = Contribution.SCA_CONTRIBUTION_META; + contributionArtifactURL = getResource(classLoader, contributionArtifactPath); + + // Look for META-INF/sca-contribution-generated.xml + if (contributionArtifactURL == null) { + contributionArtifactPath = Contribution.SCA_CONTRIBUTION_GENERATED_META; + contributionArtifactURL = getResource(classLoader, contributionArtifactPath); + } + + // Look for META-INF/sca-deployables directory + if (contributionArtifactURL == null) { + contributionArtifactPath = Contribution.SCA_CONTRIBUTION_DEPLOYABLES; + contributionArtifactURL = getResource(classLoader, contributionArtifactPath); + } else { + StAXArtifactProcessor<ContributionMetadata> processor = + artifactProcessors.getProcessor(ContributionMetadata.class); + XMLStreamReader reader = inputFactory.createXMLStreamReader(contributionArtifactURL.openStream()); + metadata = processor.read(reader); + reader.close(); + if (metadata.getDeployables().isEmpty()) { + throw new IllegalArgumentException( + "No deployable composite is declared in " + contributionArtifactPath); + } + } + } + + if (contributionArtifactURL == null) { + throw new IllegalArgumentException( + "Can't determine contribution deployables. Either specify a composite file, or use an sca-contribution.xml file to specify the deployables."); + } + + Contribution c = getContribution(contributionArtifactURL, contributionArtifactPath); + config.getContributions().add(c); + + return config; + } + + private Contribution getContribution(URL contributionArtifactURL, String contributionArtifactPath) { + URL contributionURL = getContributionURL(contributionArtifactURL, contributionArtifactPath); + + ContributionFactory contributionFactory = modelFactories.getFactory(ContributionFactory.class); + + SCAContribution contribution = new SCAContribution(contributionURL.toString(), contributionURL.toString()); + Contribution c = createContribution(contributionFactory, contribution); + return c; + } + + private URL getContributionURL(URL contributionArtifactURL, String contributionArtifactPath) { + URL contributionURL = null; + // "jar:file://....../something.jar!/a/b/c/app.composite" + try { + String url = contributionArtifactURL.toExternalForm(); + String protocol = contributionArtifactURL.getProtocol(); + if ("file".equals(protocol)) { + // directory contribution + if (url.endsWith(contributionArtifactPath)) { + final String location = url.substring(0, url.lastIndexOf(contributionArtifactPath)); + // workaround from evil URL/URI form Maven + // contributionURL = FileHelper.toFile(new URL(location)).toURI().toURL(); + // Allow privileged access to open URL stream. Add FilePermission to added to + // security policy file. + try { + contributionURL = AccessController.doPrivileged(new PrivilegedExceptionAction<URL>() { + public URL run() throws IOException { + return FileHelper.toFile(new URL(location)).toURI().toURL(); + } + }); + } catch (PrivilegedActionException e) { + throw (MalformedURLException)e.getException(); + } + } + + } else if ("jar".equals(protocol)) { + // jar contribution + String location = url.substring(4, url.lastIndexOf("!/")); + // workaround for evil URL/URI from Maven + contributionURL = FileHelper.toFile(new URL(location)).toURI().toURL(); + + } else if ("wsjar".equals(protocol)) { + // See https://issues.apache.org/jira/browse/TUSCANY-2219 + // wsjar contribution + String location = url.substring(6, url.lastIndexOf("!/")); + // workaround for evil url/uri from maven + contributionURL = FileHelper.toFile(new URL(location)).toURI().toURL(); + + } else if (protocol != null && (protocol.equals("bundle") || protocol.equals("bundleresource"))) { + contributionURL = + new URL(contributionArtifactURL.getProtocol(), contributionArtifactURL.getHost(), + contributionArtifactURL.getPort(), "/"); + } + } catch (MalformedURLException mfe) { + throw new IllegalArgumentException(mfe); + } + return contributionURL; + } + + private static URL getResource(final ClassLoader classLoader, final String compositeURI) { + return AccessController.doPrivileged(new PrivilegedAction<URL>() { + public URL run() { + return classLoader.getResource(compositeURI); + } + }); + } + + /** + * Constructs a new SCA node. + * + * @param compositeURI + * @param contributions + */ + NodeImpl(String compositeURI, SCAContribution[] contributions) { + configurationName = compositeURI; + logger.log(Level.INFO, "Creating node: " + configurationName); + + try { + // Initialize the runtime + initRuntime(); + + ConfiguredNodeImplementation configuration = null; + if (contributions == null || contributions.length == 0) { + configuration = findNodeConfiguration(compositeURI, null); + } else { + + // Create a node configuration + NodeImplementationFactory nodeImplementationFactory = + modelFactories.getFactory(NodeImplementationFactory.class); + configuration = nodeImplementationFactory.createConfiguredNodeImplementation(); + + Composite composite = createComposite(compositeURI); + configuration.setComposite(composite); + + // Create contribution models + ContributionFactory contributionFactory = modelFactories.getFactory(ContributionFactory.class); + for (SCAContribution c : contributions) { + Contribution contribution = createContribution(contributionFactory, c); + configuration.getContributions().add(contribution); + } + } + + // Configure the node + configureNode(configuration); + + } catch (Exception e) { + throw new ServiceRuntimeException(e); + } + } + + private Composite createComposite(String compositeURI) { + // Create composite model + AssemblyFactory assemblyFactory = modelFactories.getFactory(AssemblyFactory.class); + Composite composite = assemblyFactory.createComposite(); + composite.setURI(compositeURI); + composite.setUnresolved(true); + return composite; + } + + /** + * Constructs a new SCA node. + * + * @param compositeURI + * @param compositeContent + * @param contributions + */ + NodeImpl(String compositeURI, String compositeContent, SCAContribution[] contributions) { + configurationName = compositeURI; + logger.log(Level.INFO, "Creating node: " + configurationName); + + try { + // Initialize the runtime + initRuntime(); + + ConfiguredNodeImplementation configuration = null; + if (contributions == null || contributions.length == 0) { + configuration = findNodeConfiguration(compositeURI, null); + } else { + // Create a node configuration + NodeImplementationFactory nodeImplementationFactory = + modelFactories.getFactory(NodeImplementationFactory.class); + configuration = nodeImplementationFactory.createConfiguredNodeImplementation(); + + // Read the composite model + StAXArtifactProcessor<Composite> compositeProcessor = artifactProcessors.getProcessor(Composite.class); + URL compositeURL = new URL(compositeURI); + logger.log(Level.INFO, "Loading composite: " + compositeURL); + XMLStreamReader reader = inputFactory.createXMLStreamReader(new StringReader(compositeContent)); + Composite composite = compositeProcessor.read(reader); + reader.close(); + configuration.setComposite(composite); + + // Create contribution models + ContributionFactory contributionFactory = modelFactories.getFactory(ContributionFactory.class); + for (SCAContribution c : contributions) { + Contribution contribution = createContribution(contributionFactory, c); + configuration.getContributions().add(contribution); + } + } + + // Configure the node + configureNode(configuration); + + } catch (Exception e) { + throw new ServiceRuntimeException(e); + } + } + + private static Contribution createContribution(ContributionFactory contributionFactory, SCAContribution c) { + Contribution contribution = contributionFactory.createContribution(); + contribution.setURI(c.getURI()); + contribution.setLocation(c.getLocation()); + contribution.setUnresolved(true); + return contribution; + } + + /** + * Initialize the Tuscany runtime. + * + * @throws Exception + */ + private void initRuntime() throws Exception { + + // Create a node runtime + runtime = new ReallySmallRuntime(Thread.currentThread().getContextClassLoader()); + runtime.start(); + + // Get the various factories we need + ExtensionPointRegistry registry = runtime.getExtensionPointRegistry(); + modelFactories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class); + inputFactory = modelFactories.getFactory(XMLInputFactory.class); + + // Create the required artifact processors + artifactProcessors = registry.getExtensionPoint(StAXArtifactProcessorExtensionPoint.class); + + // Save the composite activator + compositeActivator = runtime.getCompositeActivator(); + + // save the monitor + UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class); + MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class); + monitor = monitorFactory.createMonitor(); + } + + /** + * Escape the space in URL string + * @param uri + * @return + */ + private static URI createURI(String uri) { + if (uri.indexOf(' ') != -1) { + uri = uri.replace(" ", "%20"); + } + return URI.create(uri); + } + + private void configureNode(ConfiguredNodeImplementation configuration) throws Exception { + + // Find if any contribution JARs already available locally on the classpath + Map<String, URL> localContributions = localContributions(); + + // Load the specified contributions + ContributionService contributionService = runtime.getContributionService(); + List<Contribution> contributions = new ArrayList<Contribution>(); + for (Contribution contribution : configuration.getContributions()) { + URI uri = createURI(contribution.getLocation()); + if (uri.getScheme() == null) { + uri = new File(contribution.getLocation()).toURI(); + } + URL contributionURL = uri.toURL(); + + // Extract contribution file name + String file = contributionURL.getPath(); + int i = file.lastIndexOf('/'); + if (i != -1 && i < file.length() - 1) { + file = file.substring(i + 1); + + // If we find the local contribution file on the classpath, use it in + // place of the original contribution URL + URL localContributionURL = localContributions.get(file); + if (localContributionURL != null) { + contributionURL = localContributionURL; + } + } + + // Load the contribution + logger.log(Level.INFO, "Loading contribution: " + contributionURL); + contributions.add(contributionService.contribute(contribution.getURI(), contributionURL, false)); + analyseProblems(); + } + + // Resolve the metadata within the context of the first contribution + Contribution mainContribution = contributions.get(contributions.size() - 1); + if (metadata != null) { + StAXArtifactProcessor<ContributionMetadata> processor = + artifactProcessors.getProcessor(ContributionMetadata.class); + processor.resolve(metadata, mainContribution.getModelResolver()); + List<Composite> composites = metadata.getDeployables(); + configuration.setComposite(composites.get(0)); + } + + + // Load the specified composite + StAXArtifactProcessor<Composite> compositeProcessor = artifactProcessors.getProcessor(Composite.class); + if (configuration.getComposite().getName() == null) { + URI uri = createURI(configuration.getComposite().getURI()); + if (uri.getScheme() == null) { + uri = new File(configuration.getComposite().getURI()).toURI(); + } + URL compositeURL = uri.toURL(); + logger.log(Level.INFO, "Loading composite: " + compositeURL); + URLConnection connection = compositeURL.openConnection(); + connection.setDefaultUseCaches(false); + connection.setUseCaches(false); + InputStream is = connection.getInputStream(); + XMLStreamReader reader = inputFactory.createXMLStreamReader(is); + composite = compositeProcessor.read(reader); + } else { + composite = configuration.getComposite(); + } + + analyseProblems(); + + // Resolve it within the context of the first contribution + compositeProcessor.resolve(composite, mainContribution.getModelResolver()); + + analyseProblems(); + + // Create a top level composite to host our composite + // This is temporary to make the activator happy + AssemblyFactory assemblyFactory = runtime.getAssemblyFactory(); + Composite tempComposite = assemblyFactory.createComposite(); + tempComposite.setName(new QName("http://tempuri.org", "temp")); + tempComposite.setURI("http://tempuri.org"); + + // Include the node composite in the top-level composite + tempComposite.getIncludes().add(composite); + + // set the top level composite on the composite activator as + // logic in callable reference resolution relies on this being + // available + compositeActivator.setDomainComposite(tempComposite); + + // Build the composite + runtime.buildComposite(composite); + + analyseProblems(); + } + + private void analyseProblems() throws Exception { + + for (Problem problem : monitor.getProblems()) { + if ((problem.getSeverity() == Severity.ERROR) && (!problem.getMessageId().equals("SchemaError"))) { + if (problem.getCause() != null) { + throw problem.getCause(); + } else { + throw new ServiceRuntimeException(problem.toString()); + } + } + } + } + + public void start() { + logger.log(Level.INFO, "Starting node: " + configurationName); + + try { + + // Activate the composite + compositeActivator.activate(composite); + + // Start the composite + compositeActivator.start(composite); + + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + } + + public void stop() { + logger.log(Level.INFO, "Stopping node: " + configurationName); + + try { + + // Stop the composite + compositeActivator.stop(composite); + + // Deactivate the composite + compositeActivator.deactivate(composite); + + } catch (ActivationException e) { + throw new ServiceRuntimeException(e); + } + } + + public <B, R extends CallableReference<B>> R cast(B target) throws IllegalArgumentException { + return (R)runtime.getProxyFactory().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 : composite.getComponents()) { + if (compositeComponent.getName().equals(componentName)) { + component = compositeComponent; + } + } + + if (component == null) { + throw new ServiceRuntimeException("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) { + if (serviceName != null) { + serviceName = "$promoted$." + component.getName() + "." + serviceName; + } + 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); + } + } + } + + /** + * Returns the extension point registry used by this node. + * + * @return + */ + public ExtensionPointRegistry getExtensionPointRegistry() { + return runtime.getExtensionPointRegistry(); + } + + /** + * Returns the composite being run by this node. + * + * @return + */ + public Composite getComposite() { + return composite; + } + + /** + * Returns contribution JARs available on the classpath. + * + * @return + */ + private static Map<String, URL> localContributions() { + Map<String, URL> localContributions = new HashMap<String, URL>(); + collectJARs(localContributions, Thread.currentThread().getContextClassLoader()); + return localContributions; + } + + /** + * Collect JARs on the classpath of a URLClassLoader + * @param urls + * @param cl + */ + private static void collectJARs(Map<String, URL> urls, ClassLoader cl) { + if (cl == null) { + return; + } + + // Collect JARs from the URLClassLoader's classpath + if (cl instanceof URLClassLoader) { + URL[] jarURLs = ((URLClassLoader)cl).getURLs(); + if (jarURLs != null) { + for (URL jarURL : jarURLs) { + String file = jarURL.getPath(); + int i = file.lastIndexOf('/'); + if (i != -1 && i < file.length() - 1) { + file = file.substring(i + 1); + urls.put(file, jarURL); + } + } + } + } + + // Collect JARs from the parent ClassLoader + collectJARs(urls, cl.getParent()); + } +} |