diff options
Diffstat (limited to 'tags/java/sca/1.5.1-RC3/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java')
| -rw-r--r-- | tags/java/sca/1.5.1-RC3/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java | 387 |
1 files changed, 387 insertions, 0 deletions
diff --git a/tags/java/sca/1.5.1-RC3/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java b/tags/java/sca/1.5.1-RC3/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java new file mode 100644 index 0000000000..34a54e21ad --- /dev/null +++ b/tags/java/sca/1.5.1-RC3/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java @@ -0,0 +1,387 @@ +/* + * 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.host.embedded.impl; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.logging.Level; +import java.util.logging.Logger; + +import javax.xml.parsers.DocumentBuilderFactory; +import javax.xml.transform.TransformerFactory; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.Composite; +import org.apache.tuscany.sca.assembly.EndpointFactory; +import org.apache.tuscany.sca.assembly.SCABindingFactory; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilder; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilderException; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessor; +import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint; +import org.apache.tuscany.sca.contribution.resolver.DefaultModelResolver; +import org.apache.tuscany.sca.contribution.resolver.ModelResolver; +import org.apache.tuscany.sca.contribution.service.ContributionService; +import org.apache.tuscany.sca.core.DefaultExtensionPointRegistry; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.ModuleActivator; +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.core.assembly.RuntimeAssemblyFactory; +import org.apache.tuscany.sca.core.invocation.ExtensibleProxyFactory; +import org.apache.tuscany.sca.core.invocation.ProxyFactory; +import org.apache.tuscany.sca.core.invocation.ProxyFactoryExtensionPoint; +import org.apache.tuscany.sca.core.scope.ScopeRegistry; +import org.apache.tuscany.sca.definitions.SCADefinitions; +import org.apache.tuscany.sca.definitions.impl.SCADefinitionsImpl; +import org.apache.tuscany.sca.definitions.util.SCADefinitionsUtil; +import org.apache.tuscany.sca.extensibility.ServiceDeclaration; +import org.apache.tuscany.sca.extensibility.ServiceDiscovery; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.invocation.MessageFactory; +import org.apache.tuscany.sca.monitor.Monitor; +import org.apache.tuscany.sca.monitor.MonitorFactory; +import org.apache.tuscany.sca.monitor.impl.DefaultMonitorFactoryImpl; +import org.apache.tuscany.sca.policy.DefaultIntentAttachPointTypeFactory; +import org.apache.tuscany.sca.policy.DefaultPolicyFactory; +import org.apache.tuscany.sca.policy.Intent; +import org.apache.tuscany.sca.policy.IntentAttachPointType; +import org.apache.tuscany.sca.policy.IntentAttachPointTypeFactory; +import org.apache.tuscany.sca.policy.PolicyFactory; +import org.apache.tuscany.sca.policy.PolicySet; +import org.apache.tuscany.sca.provider.SCADefinitionsProvider; +import org.apache.tuscany.sca.provider.SCADefinitionsProviderExtensionPoint; +import org.apache.tuscany.sca.work.WorkScheduler; + +/** + * + * @version $Rev$ $Date$ + */ +public class ReallySmallRuntime { + private static final Logger logger = Logger.getLogger(ReallySmallRuntime.class.getName()); + private List<ModuleActivator> modules; + private ExtensionPointRegistry registry; + + private ClassLoader classLoader; + private AssemblyFactory assemblyFactory; + private ContributionService contributionService; + private CompositeActivator compositeActivator; + private CompositeBuilder compositeBuilder; + // private DomainBuilder domainBuilder; + private WorkScheduler workScheduler; + private ScopeRegistry scopeRegistry; + private ProxyFactory proxyFactory; + private List<SCADefinitions> policyDefinitions; + private ModelResolver policyDefinitionsResolver; + private Monitor monitor; + + public ReallySmallRuntime(ClassLoader classLoader) { + this.classLoader = classLoader; + + // Create our extension point registry + registry = new DefaultExtensionPointRegistry(); + } + + public void start() throws ActivationException { + long start = System.currentTimeMillis(); + + + UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class); + + // Get work scheduler + workScheduler = utilities.getUtility(WorkScheduler.class); + + // Create an interface contract mapper + InterfaceContractMapper mapper = utilities.getUtility(InterfaceContractMapper.class); + + // Get factory extension point + ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class); + + // Get Message factory + MessageFactory messageFactory = factories.getFactory(MessageFactory.class); + + // Get proxy factory + ProxyFactoryExtensionPoint proxyFactories = registry.getExtensionPoint(ProxyFactoryExtensionPoint.class); + proxyFactory = new ExtensibleProxyFactory(proxyFactories); + + // Create model factories + assemblyFactory = new RuntimeAssemblyFactory(); + factories.addFactory(assemblyFactory); + PolicyFactory policyFactory = new DefaultPolicyFactory(); + factories.addFactory(policyFactory); + + // Load the runtime modules + modules = loadModules(registry); + + // Start the runtime modules + startModules(registry, modules); + + SCABindingFactory scaBindingFactory = factories.getFactory(SCABindingFactory.class); + IntentAttachPointTypeFactory intentAttachPointTypeFactory = new DefaultIntentAttachPointTypeFactory(); + factories.addFactory(intentAttachPointTypeFactory); + ContributionFactory contributionFactory = factories.getFactory(ContributionFactory.class); + + // Create a monitor + MonitorFactory monitorFactory = utilities.getUtility(MonitorFactory.class); + + if (monitorFactory != null){ + monitor = monitorFactory.createMonitor(); + } else { + monitorFactory = new DefaultMonitorFactoryImpl(); + monitor = monitorFactory.createMonitor(); + utilities.addUtility(monitorFactory); + //logger.fine("No MonitorFactory is found on the classpath."); + } + + // Create a contribution service + policyDefinitions = new ArrayList<SCADefinitions>(); + policyDefinitionsResolver = new DefaultModelResolver(); + contributionService = ReallySmallRuntimeBuilder.createContributionService(classLoader, + registry, + contributionFactory, + assemblyFactory, + policyFactory, + mapper, + policyDefinitions, + policyDefinitionsResolver, + monitor); + + // Create the ScopeRegistry + scopeRegistry = ReallySmallRuntimeBuilder.createScopeRegistry(registry); + + // Create a composite activator + compositeActivator = ReallySmallRuntimeBuilder.createCompositeActivator(registry, + assemblyFactory, + messageFactory, + scaBindingFactory, + mapper, + proxyFactory, + scopeRegistry, + workScheduler); + + // Load the definitions.xml + loadSCADefinitions(); + + if (logger.isLoggable(Level.FINE)) { + long end = System.currentTimeMillis(); + logger.fine("The tuscany runtime is started in " + (end - start) + " ms."); + } + } + + public void stop() throws ActivationException { + long start = System.currentTimeMillis(); + + // Stop the runtime modules + stopModules(registry, modules); + + // Stop and destroy the work manager + workScheduler.destroy(); + + // Cleanup + modules = null; + registry = null; + assemblyFactory = null; + contributionService = null; + compositeActivator = null; + workScheduler = null; + scopeRegistry = null; + + if (logger.isLoggable(Level.FINE)) { + long end = System.currentTimeMillis(); + logger.fine("The tuscany runtime is stopped in " + (end - start) + " ms."); + } + } + + public void buildComposite(Composite composite) throws CompositeBuilderException { + //Get factory extension point + ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class); + SCABindingFactory scaBindingFactory = factories.getFactory(SCABindingFactory.class); + IntentAttachPointTypeFactory intentAttachPointTypeFactory = factories.getFactory(IntentAttachPointTypeFactory.class); + EndpointFactory endpointFactory = factories.getFactory(EndpointFactory.class); + UtilityExtensionPoint utilities = registry.getExtensionPoint(UtilityExtensionPoint.class); + InterfaceContractMapper mapper = utilities.getUtility(InterfaceContractMapper.class); + DocumentBuilderFactory documentBuilderFactory = factories.getFactory(DocumentBuilderFactory.class); + TransformerFactory transformerFactory = factories.getFactory(TransformerFactory.class); + + //Create a composite builder + SCADefinitions aggregatedDefinitions = new SCADefinitionsImpl(); + for ( SCADefinitions definition : ((List<SCADefinitions>)policyDefinitions) ) { + SCADefinitionsUtil.aggregateSCADefinitions(definition, aggregatedDefinitions); + } + compositeBuilder = ReallySmallRuntimeBuilder.createCompositeBuilder(monitor, + assemblyFactory, + scaBindingFactory, + endpointFactory, + intentAttachPointTypeFactory, + documentBuilderFactory, + transformerFactory, + mapper, + aggregatedDefinitions); + compositeBuilder.build(composite); + + } + + public ContributionService getContributionService() { + return contributionService; + } + + public CompositeActivator getCompositeActivator() { + return compositeActivator; + } + + public CompositeBuilder getCompositeBuilder() { + return compositeBuilder; + } + + public AssemblyFactory getAssemblyFactory() { + return assemblyFactory; + } + + private void loadSCADefinitions() throws ActivationException { + try { + URLArtifactProcessorExtensionPoint documentProcessors = registry.getExtensionPoint(URLArtifactProcessorExtensionPoint.class); + URLArtifactProcessor<SCADefinitions> definitionsProcessor = documentProcessors.getProcessor(SCADefinitions.class); + SCADefinitionsProviderExtensionPoint scaDefnProviders = registry.getExtensionPoint(SCADefinitionsProviderExtensionPoint.class); + + SCADefinitions systemSCADefinitions = new SCADefinitionsImpl(); + SCADefinitions aSCADefn = null; + for ( SCADefinitionsProvider aProvider : scaDefnProviders.getSCADefinitionsProviders() ) { + aSCADefn = aProvider.getSCADefinition(); + SCADefinitionsUtil.aggregateSCADefinitions(aSCADefn, systemSCADefinitions); + } + + policyDefinitions.add(systemSCADefinitions); + + //we cannot expect that providers will add the intents and policysets into the resolver + //so we do this here explicitly + for ( Intent intent : systemSCADefinitions.getPolicyIntents() ) { + policyDefinitionsResolver.addModel(intent); + } + + for ( PolicySet policySet : systemSCADefinitions.getPolicySets() ) { + policyDefinitionsResolver.addModel(policySet); + } + + for ( IntentAttachPointType attachPoinType : systemSCADefinitions.getBindingTypes() ) { + policyDefinitionsResolver.addModel(attachPoinType); + } + + for ( IntentAttachPointType attachPoinType : systemSCADefinitions.getImplementationTypes() ) { + policyDefinitionsResolver.addModel(attachPoinType); + } + + //now that all system sca definitions have been read, lets resolve them right away + definitionsProcessor.resolve(systemSCADefinitions, + policyDefinitionsResolver); + } catch ( Exception e ) { + throw new ActivationException(e); + } + } + + @SuppressWarnings("unchecked") + private List<ModuleActivator> loadModules(ExtensionPointRegistry registry) throws ActivationException { + + // Load and instantiate the modules found on the classpath (or any registered ClassLoaders) + modules = new ArrayList<ModuleActivator>(); + try { + Set<ServiceDeclaration> moduleActivators = + ServiceDiscovery.getInstance().getServiceDeclarations(ModuleActivator.class); + Set<String> moduleClasses = new HashSet<String>(); + for (ServiceDeclaration moduleDeclarator : moduleActivators) { + if (moduleClasses.contains(moduleDeclarator.getClassName())) { + continue; + } + moduleClasses.add(moduleDeclarator.getClassName()); + Class<?> moduleClass = moduleDeclarator.loadClass(); + ModuleActivator module = (ModuleActivator)moduleClass.newInstance(); + modules.add(module); + } + } catch (IOException e) { + throw new ActivationException(e); + } catch (ClassNotFoundException e) { + throw new ActivationException(e); + } catch (InstantiationException e) { + throw new ActivationException(e); + } catch (IllegalAccessException e) { + throw new ActivationException(e); + } + + return modules; + } + + private void startModules(ExtensionPointRegistry registry, List<ModuleActivator> modules) + throws ActivationException { + boolean debug = logger.isLoggable(Level.FINE); + // Start all the extension modules + for (ModuleActivator module : modules) { + long start = 0L; + if (debug) { + logger.fine(module.getClass().getName() + " is starting."); + start = System.currentTimeMillis(); + } + try { + module.start(registry); + if (debug) { + long end = System.currentTimeMillis(); + logger.fine(module.getClass().getName() + " is started in " + (end - start) + " ms."); + } + } catch (Throwable e) { + logger.log(Level.WARNING, "Exception starting module " + module.getClass().getName() + " :" + e.getMessage()); + logger.log(Level.FINE, "Exception starting module " + module.getClass().getName(), e); + } + } + } + + private void stopModules(final ExtensionPointRegistry registry, List<ModuleActivator> modules) { + boolean debug = logger.isLoggable(Level.FINE); + for (ModuleActivator module : modules) { + long start = 0L; + if (debug) { + logger.fine(module.getClass().getName() + " is stopping."); + start = System.currentTimeMillis(); + } + module.stop(registry); + if (debug) { + long end = System.currentTimeMillis(); + logger.fine(module.getClass().getName() + " is stopped in " + (end - start) + " ms."); + } + } + } + + /** + * @return the proxyFactory + */ + public ProxyFactory getProxyFactory() { + return proxyFactory; + } + + /** + * @return the registry + */ + public ExtensionPointRegistry getExtensionPointRegistry() { + return registry; + } + +} |