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Diffstat (limited to 'branches/sca-java-1.0.1/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java')
| -rw-r--r-- | branches/sca-java-1.0.1/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java | 297 |
1 files changed, 297 insertions, 0 deletions
diff --git a/branches/sca-java-1.0.1/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java b/branches/sca-java-1.0.1/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java new file mode 100644 index 0000000000..bc8776d958 --- /dev/null +++ b/branches/sca-java-1.0.1/modules/host-embedded/src/main/java/org/apache/tuscany/sca/host/embedded/impl/ReallySmallRuntime.java @@ -0,0 +1,297 @@ +/* + * 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.net.URL; +import java.util.ArrayList; +import java.util.List; +import java.util.logging.Level; +import java.util.logging.Logger; + +import org.apache.tuscany.sca.assembly.AssemblyFactory; +import org.apache.tuscany.sca.assembly.SCABindingFactory; +import org.apache.tuscany.sca.assembly.builder.CompositeBuilder; +import org.apache.tuscany.sca.context.ContextFactoryExtensionPoint; +import org.apache.tuscany.sca.context.DefaultContextFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.ContributionFactory; +import org.apache.tuscany.sca.contribution.ModelFactoryExtensionPoint; +import org.apache.tuscany.sca.contribution.processor.URLArtifactProcessorExtensionPoint; +import org.apache.tuscany.sca.contribution.service.ContributionReadException; +import org.apache.tuscany.sca.contribution.service.ContributionResolveException; +import org.apache.tuscany.sca.contribution.service.ContributionService; +import org.apache.tuscany.sca.contribution.util.ServiceConfigurationUtil; +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.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.MessageFactoryImpl; +import org.apache.tuscany.sca.core.invocation.ProxyFactory; +import org.apache.tuscany.sca.core.scope.ScopeRegistry; +import org.apache.tuscany.sca.definitions.SCADefinitions; +import org.apache.tuscany.sca.definitions.xml.SCADefinitionsDocumentProcessor; +import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper; +import org.apache.tuscany.sca.interfacedef.impl.InterfaceContractMapperImpl; +import org.apache.tuscany.sca.invocation.MessageFactory; +import org.apache.tuscany.sca.policy.DefaultIntentAttachPointTypeFactory; +import org.apache.tuscany.sca.policy.DefaultPolicyFactory; +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.work.WorkScheduler; + +public class ReallySmallRuntime { + private final static 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 WorkScheduler workScheduler; + private ScopeRegistry scopeRegistry; + private ProxyFactory proxyFactory; + + public ReallySmallRuntime(ClassLoader classLoader) { + this.classLoader = classLoader; + } + + public void start() throws ActivationException { + long start = System.currentTimeMillis(); + + // Create our extension point registry + registry = new DefaultExtensionPointRegistry(); + +// Get work scheduler + workScheduler = registry.getExtensionPoint(WorkScheduler.class); + + // Create an interface contract mapper + InterfaceContractMapper mapper = new InterfaceContractMapperImpl(); + + // Get factory extension point + ModelFactoryExtensionPoint factories = registry.getExtensionPoint(ModelFactoryExtensionPoint.class); + + // Create context factory extension point + ContextFactoryExtensionPoint contextFactories = new DefaultContextFactoryExtensionPoint(); + registry.addExtensionPoint(contextFactories); + + // Create Message factory + MessageFactory messageFactory = new MessageFactoryImpl(); + factories.addFactory(messageFactory); + + // Create a proxy factory + proxyFactory = ReallySmallRuntimeBuilder.createProxyFactory(registry, mapper, messageFactory); + + // Create model factories + assemblyFactory = new RuntimeAssemblyFactory(); + factories.addFactory(assemblyFactory); + PolicyFactory policyFactory = new DefaultPolicyFactory(); + factories.addFactory(policyFactory); + SCABindingFactory scaBindingFactory = factories.getFactory(SCABindingFactory.class); + IntentAttachPointTypeFactory intentAttachPointTypeFactory = new DefaultIntentAttachPointTypeFactory(); + factories.addFactory(intentAttachPointTypeFactory); + ContributionFactory contributionFactory = factories.getFactory(ContributionFactory.class); + + // Create a contribution service + contributionService = ReallySmallRuntimeBuilder.createContributionService(classLoader, + registry, + contributionFactory, + assemblyFactory, + policyFactory, + mapper); + + // Create the ScopeRegistry + scopeRegistry = ReallySmallRuntimeBuilder.createScopeRegistry(registry); + + // Create a composite activator + compositeActivator = ReallySmallRuntimeBuilder.createCompositeActivator(registry, + assemblyFactory, + messageFactory, + scaBindingFactory, + mapper, + proxyFactory, + scopeRegistry, + workScheduler); + + + // Load the runtime modules + modules = loadModules(registry, classLoader); + + // Start the runtime modules + startModules(registry, modules); + + // Load the definitions.xml + URLArtifactProcessorExtensionPoint documentProcessors = registry.getExtensionPoint(URLArtifactProcessorExtensionPoint.class); + SCADefinitionsDocumentProcessor definitionsProcessor = (SCADefinitionsDocumentProcessor)documentProcessors.getProcessor(SCADefinitions.class); + SCADefinitions definitions = loadDomainDefinitions(definitionsProcessor); + List<PolicySet> domainPolicySets; + if ( definitions != null ) { + domainPolicySets = definitions.getPolicySets(); + } else { + domainPolicySets = null; + } + + //Create a composite builder + compositeBuilder = ReallySmallRuntimeBuilder.createCompositeBuilder(assemblyFactory, + scaBindingFactory, + intentAttachPointTypeFactory, + mapper, + domainPolicySets); + if (logger.isLoggable(Level.FINE)) { + long end = System.currentTimeMillis(); + logger.fine("The tuscany runtime is started in " + (end - start) + " ms."); + } + } + + private SCADefinitions loadDomainDefinitions(SCADefinitionsDocumentProcessor definitionsProcessor) throws ActivationException { + URL url = this.classLoader.getResource("definitions.xml"); + SCADefinitions definitions = null; + + if ( url != null ) { + try { + definitions = definitionsProcessor.read(null, null, url); + definitionsProcessor.resolve(definitions, definitionsProcessor.getDomainModelResolver()); + } catch ( ContributionReadException e ) { + throw new ActivationException(e); + } catch ( ContributionResolveException e ) { + throw new ActivationException(e); + } + } + return definitions; + } + + 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 ContributionService getContributionService() { + return contributionService; + } + + public CompositeActivator getCompositeActivator() { + return compositeActivator; + } + + public CompositeBuilder getCompositeBuilder() { + return compositeBuilder; + } + + public AssemblyFactory getAssemblyFactory() { + return assemblyFactory; + } + + @SuppressWarnings("unchecked") + private List<ModuleActivator> loadModules(ExtensionPointRegistry registry, ClassLoader classLoader) throws ActivationException { + + // Load and instantiate the modules found on the classpath + modules = new ArrayList<ModuleActivator>(); + try { + List<String> classNames = ServiceConfigurationUtil.getServiceClassNames(classLoader, ModuleActivator.class.getName()); + for (String className : classNames) { + Class moduleClass = Class.forName(className, true, classLoader); + 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(); + } + module.start(registry); + if (debug) { + long end = System.currentTimeMillis(); + logger.fine(module.getClass().getName() + " is started in " + (end - start) + " ms."); + } + } + } + + private void stopModules(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; + } + +} |