/*
* 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.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import javax.xml.stream.XMLInputFactory;
import javax.xml.stream.XMLOutputFactory;
import org.apache.tuscany.sca.assembly.AssemblyFactory;
import org.apache.tuscany.sca.assembly.SCABindingFactory;
import org.apache.tuscany.sca.assembly.xml.ComponentTypeDocumentProcessor;
import org.apache.tuscany.sca.assembly.xml.ComponentTypeProcessor;
import org.apache.tuscany.sca.assembly.xml.CompositeDocumentProcessor;
import org.apache.tuscany.sca.assembly.xml.CompositeProcessor;
import org.apache.tuscany.sca.assembly.xml.ConstrainingTypeDocumentProcessor;
import org.apache.tuscany.sca.assembly.xml.ConstrainingTypeProcessor;
import org.apache.tuscany.sca.contribution.ContributionFactory;
import org.apache.tuscany.sca.contribution.impl.ContributionFactoryImpl;
import org.apache.tuscany.sca.contribution.processor.DefaultPackageProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.DefaultStAXArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.DefaultURLArtifactProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.ExtensiblePackageProcessor;
import org.apache.tuscany.sca.contribution.processor.ExtensibleStAXArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.ExtensibleURLArtifactProcessor;
import org.apache.tuscany.sca.contribution.processor.PackageProcessor;
import org.apache.tuscany.sca.contribution.processor.PackageProcessorExtensionPoint;
import org.apache.tuscany.sca.contribution.processor.impl.FolderContributionProcessor;
import org.apache.tuscany.sca.contribution.processor.impl.JarContributionProcessor;
import org.apache.tuscany.sca.contribution.service.ContributionRepository;
import org.apache.tuscany.sca.contribution.service.ContributionService;
import org.apache.tuscany.sca.contribution.service.impl.ContributionRepositoryImpl;
import org.apache.tuscany.sca.contribution.service.impl.ContributionServiceImpl;
import org.apache.tuscany.sca.contribution.service.impl.PackageTypeDescriberImpl;
import org.apache.tuscany.sca.core.ExtensionPointRegistry;
import org.apache.tuscany.sca.core.invocation.ExtensibleWireProcessor;
import org.apache.tuscany.sca.core.invocation.JDKProxyService;
import org.apache.tuscany.sca.core.invocation.ProxyFactory;
import org.apache.tuscany.sca.core.runtime.ActivationException;
import org.apache.tuscany.sca.core.runtime.CompositeActivator;
import org.apache.tuscany.sca.core.runtime.CompositeActivatorImpl;
import org.apache.tuscany.sca.core.runtime.RuntimeSCABindingProviderFactory;
import org.apache.tuscany.sca.core.scope.CompositeScopeContainerFactory;
import org.apache.tuscany.sca.core.scope.RequestScopeContainerFactory;
import org.apache.tuscany.sca.core.scope.ScopeRegistryImpl;
import org.apache.tuscany.sca.core.scope.StatelessScopeContainerFactory;
import org.apache.tuscany.sca.core.work.Jsr237WorkScheduler;
import org.apache.tuscany.sca.interfacedef.InterfaceContractMapper;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.policy.PolicyFactory;
import org.apache.tuscany.sca.provider.DefaultProviderFactoryExtensionPoint;
import org.apache.tuscany.sca.provider.ProviderFactoryExtensionPoint;
import org.apache.tuscany.sca.runtime.DefaultWireProcessorExtensionPoint;
import org.apache.tuscany.sca.runtime.RuntimeWireProcessor;
import org.apache.tuscany.sca.runtime.RuntimeWireProcessorExtensionPoint;
import org.apache.tuscany.sca.scope.ScopeContainerFactory;
import org.apache.tuscany.sca.scope.ScopeRegistry;
import org.apache.tuscany.sca.work.WorkScheduler;
import commonj.work.WorkManager;
public class ReallySmallRuntimeBuilder {
public static ProxyFactory createProxyFactory(ExtensionPointRegistry registry, InterfaceContractMapper mapper, MessageFactory messageFactory) {
// Create a proxy factory
ProxyFactory proxyFactory = new JDKProxyService(messageFactory, mapper);
// FIXME remove this
registry.addExtensionPoint(proxyFactory);
registry.addExtensionPoint(mapper);
return proxyFactory;
}
public static CompositeActivator createCompositeActivator(ExtensionPointRegistry registry,
AssemblyFactory assemblyFactory,
SCABindingFactory scaBindingFactory,
InterfaceContractMapper mapper,
ScopeRegistry scopeRegistry,
WorkManager workManager) {
// Create a work scheduler
WorkScheduler workScheduler = new Jsr237WorkScheduler(workManager);
registry.addExtensionPoint(workScheduler);
// Create a wire post processor extension point
RuntimeWireProcessorExtensionPoint wireProcessors = new DefaultWireProcessorExtensionPoint();
registry.addExtensionPoint(wireProcessors);
RuntimeWireProcessor wireProcessor = new ExtensibleWireProcessor(wireProcessors);
// Create a provider factory extension point
ProviderFactoryExtensionPoint providerFactories = new DefaultProviderFactoryExtensionPoint();
registry.addExtensionPoint(providerFactories);
providerFactories.addProviderFactory(new RuntimeSCABindingProviderFactory());
// Create the composite activator
CompositeActivator compositeActivator = new CompositeActivatorImpl(
assemblyFactory, scaBindingFactory,
mapper, scopeRegistry,
workScheduler, wireProcessor,
providerFactories);
return compositeActivator;
}
/**
* Create the contribution service used by this domain.
*
* @throws ActivationException
*/
public static ContributionService createContributionService(ExtensionPointRegistry registry,
AssemblyFactory assemblyFactory,
PolicyFactory policyFactory,
InterfaceContractMapper mapper)
throws ActivationException {
XMLInputFactory xmlFactory = XMLInputFactory.newInstance();
// Create STAX artifact processor extension point
DefaultStAXArtifactProcessorExtensionPoint staxProcessors = new DefaultStAXArtifactProcessorExtensionPoint();
registry.addExtensionPoint(staxProcessors);
// Create and register STAX processors for SCA assembly XML
ExtensibleStAXArtifactProcessor staxProcessor = new ExtensibleStAXArtifactProcessor(staxProcessors, xmlFactory,
XMLOutputFactory
.newInstance());
staxProcessors.addArtifactProcessor(new CompositeProcessor(assemblyFactory, policyFactory, mapper,
staxProcessor));
staxProcessors.addArtifactProcessor(new ComponentTypeProcessor(assemblyFactory, policyFactory, staxProcessor));
staxProcessors
.addArtifactProcessor(new ConstrainingTypeProcessor(assemblyFactory, policyFactory, staxProcessor));
// Create URL artifact processor extension point
// FIXME use the interface instead of the class
DefaultURLArtifactProcessorExtensionPoint documentProcessors = new DefaultURLArtifactProcessorExtensionPoint();
registry.addExtensionPoint(documentProcessors);
// Create and register document processors for SCA assembly XML
XMLInputFactory inputFactory = XMLInputFactory.newInstance();
documentProcessors.addArtifactProcessor(new CompositeDocumentProcessor(staxProcessor, inputFactory));
documentProcessors.addArtifactProcessor(new ComponentTypeDocumentProcessor(staxProcessor, inputFactory));
documentProcessors.addArtifactProcessor(new ConstrainingTypeDocumentProcessor(staxProcessor, inputFactory));
// Create contribution package processor extension point
PackageTypeDescriberImpl describer = new PackageTypeDescriberImpl();
PackageProcessorExtensionPoint packageProcessors = new DefaultPackageProcessorExtensionPoint();
PackageProcessor packageProcessor = new ExtensiblePackageProcessor(packageProcessors, describer);
registry.addExtensionPoint(packageProcessors);
// Register base package processors
packageProcessors.addPackageProcessor(new JarContributionProcessor());
packageProcessors.addPackageProcessor(new FolderContributionProcessor());
// Create a contribution repository
ContributionRepository repository;
try {
repository = new ContributionRepositoryImpl("target");
} catch (IOException e) {
throw new ActivationException(e);
}
ContributionFactory contributionFactory = new ContributionFactoryImpl();
ExtensibleURLArtifactProcessor documentProcessor = new ExtensibleURLArtifactProcessor(documentProcessors);
ContributionService contributionService = new ContributionServiceImpl(repository, packageProcessor,
documentProcessor, assemblyFactory,
contributionFactory, xmlFactory);
return contributionService;
}
public static ScopeRegistry createScopeRegistry(ExtensionPointRegistry registry) {
ScopeRegistry scopeRegistry = new ScopeRegistryImpl();
ScopeContainerFactory[] factories = new ScopeContainerFactory[] {new CompositeScopeContainerFactory(),
new StatelessScopeContainerFactory(),
new RequestScopeContainerFactory(),
// new ConversationalScopeContainer(monitor),
// new HttpSessionScopeContainer(monitor)
};
for (ScopeContainerFactory f : factories) {
scopeRegistry.register(f);
}
registry.addExtensionPoint(scopeRegistry);
return scopeRegistry;
}
/**
* Read the service name from a configuration file
*
* @param classLoader
* @param name The name of the service class
* @return A class name which extends/implements the service class
* @throws IOException
*/
private static Set<String> getServiceClassNames(ClassLoader classLoader, String name) throws IOException {
Set<String> set = new HashSet<String>();
Enumeration<URL> urls = classLoader.getResources("META-INF/services/" + name);
while (urls.hasMoreElements()) {
URL url = urls.nextElement();
Set<String> service = getServiceClassNames(url);
if (service != null) {
set.addAll(service);
}
}
return set;
}
private static Set<String> getServiceClassNames(URL url) throws IOException {
Set<String> names = new HashSet<String>();
InputStream is = url.openStream();
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(is));
while (true) {
String line = reader.readLine();
if (line == null) {
break;
}
line = line.trim();
if (!line.startsWith("#") && !"".equals(line)) {
names.add(line.trim());
}
}
} finally {
if (reader != null) {
reader.close();
}
if (is != null){
try {
is.close();
} catch( IOException ioe) {
//ignore
}
}
}
return names;
}
public static <T> List<T> getServices(final ClassLoader classLoader, Class<T> serviceClass) {
List<T> instances = new ArrayList<T>();
try {
Set<String> services = getServiceClassNames(classLoader, serviceClass.getName());
for (String className : services) {
Class cls = Class.forName(className, true, classLoader);
instances.add(serviceClass.cast(cls.newInstance()));
}
} catch (Exception e) {
throw new IllegalStateException(e);
}
return instances;
}
}