| /* |
| * 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.implementation.java.invocation; |
| |
| import java.lang.reflect.Method; |
| |
| import org.apache.tuscany.sca.context.ComponentContextFactory; |
| import org.apache.tuscany.sca.context.PropertyValueFactory; |
| import org.apache.tuscany.sca.context.RequestContextFactory; |
| import org.apache.tuscany.sca.core.factory.InstanceWrapper; |
| import org.apache.tuscany.sca.core.factory.ObjectFactory; |
| import org.apache.tuscany.sca.core.invocation.ProxyFactory; |
| import org.apache.tuscany.sca.core.scope.Scope; |
| import org.apache.tuscany.sca.core.scope.ScopedImplementationProvider; |
| import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint; |
| import org.apache.tuscany.sca.implementation.java.JavaImplementation; |
| import org.apache.tuscany.sca.implementation.java.JavaResourceImpl; |
| import org.apache.tuscany.sca.implementation.java.injection.RequestContextObjectFactory; |
| import org.apache.tuscany.sca.implementation.java.injection.ResourceHost; |
| import org.apache.tuscany.sca.implementation.java.injection.ResourceObjectFactory; |
| import org.apache.tuscany.sca.interfacedef.Interface; |
| import org.apache.tuscany.sca.interfacedef.Operation; |
| import org.apache.tuscany.sca.interfacedef.java.JavaInterface; |
| import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil; |
| import org.apache.tuscany.sca.invocation.Invoker; |
| import org.apache.tuscany.sca.runtime.RuntimeComponent; |
| import org.apache.tuscany.sca.runtime.RuntimeComponentService; |
| import org.oasisopen.sca.ComponentContext; |
| import org.oasisopen.sca.RequestContext; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class JavaImplementationProvider implements ScopedImplementationProvider { |
| private JavaImplementation implementation; |
| private JavaComponentContextProvider componentContextProvider; |
| private RequestContextFactory requestContextFactory; |
| |
| public JavaImplementationProvider(RuntimeComponent component, |
| JavaImplementation implementation, |
| ProxyFactory proxyService, |
| DataBindingExtensionPoint dataBindingRegistry, |
| PropertyValueFactory propertyValueObjectFactory, |
| ComponentContextFactory componentContextFactory, |
| RequestContextFactory requestContextFactory) { |
| super(); |
| this.implementation = implementation; |
| this.requestContextFactory = requestContextFactory; |
| |
| try { |
| JavaInstanceFactoryProvider configuration = new JavaInstanceFactoryProvider(implementation); |
| configuration.setProxyFactory(proxyService); |
| componentContextProvider = |
| new JavaComponentContextProvider(component, |
| configuration, |
| dataBindingRegistry, |
| propertyValueObjectFactory, |
| componentContextFactory, |
| requestContextFactory); |
| |
| Scope scope = getScope(); |
| |
| componentContextProvider.configureProperties(component.getProperties()); |
| handleResources(implementation, proxyService); |
| } catch (Exception e) { |
| throw new IllegalStateException(e); |
| } |
| |
| } |
| |
| private void handleResources(JavaImplementation componentType, ProxyFactory proxyService) { |
| for (JavaResourceImpl resource : componentType.getResources().values()) { |
| String name = resource.getName(); |
| |
| ObjectFactory<?> objectFactory = |
| (ObjectFactory<?>)componentContextProvider.getInstanceFactoryProvider().getFactories().get(resource.getElement()); |
| if (objectFactory == null) { |
| Class<?> type = resource.getElement().getType(); |
| if (ComponentContext.class.equals(type)) { |
| objectFactory = new JavaComponentContextFactory(componentContextProvider); |
| } else if (RequestContext.class.equals(type)) { |
| objectFactory = new RequestContextObjectFactory(requestContextFactory, componentContextProvider.getComponent()); |
| } else if (String.class.equals(type)) { |
| objectFactory = new JavaComponentNameFactory(componentContextProvider); |
| } else { |
| boolean optional = resource.isOptional(); |
| String mappedName = resource.getMappedName(); |
| objectFactory = createResourceObjectFactory(type, mappedName, optional, null); |
| } |
| } |
| componentContextProvider.addResourceFactory(name, objectFactory); |
| } |
| } |
| |
| private <T> ResourceObjectFactory<T> createResourceObjectFactory(Class<T> type, |
| String mappedName, |
| boolean optional, |
| ResourceHost host) { |
| return new ResourceObjectFactory<T>(type, mappedName, optional, host); |
| } |
| |
| public Invoker createInvoker(RuntimeComponentService service, Operation operation) { |
| try { |
| return componentContextProvider.createInvoker(operation, service.getInterfaceContract()); |
| } catch (NoSuchMethodException e) { |
| // It's possible that the instance being invoked is a user-specified |
| // callback object that isn't an instance of the component implementation |
| // class. As an attempt to deal with this, look up a method object from |
| // the service interface. This isn't foolproof, as it's possible that |
| // the service interface isn't a Java interface, or that the callback |
| // object has the right method signature without implementing the |
| // callback interface. There is code in JavaImplementationInvoker |
| // to deal with these possibilities. |
| Interface iface = service.getInterfaceContract().getInterface(); |
| if (iface instanceof JavaInterface) { |
| try { |
| Method method = JavaInterfaceUtil.findMethod(((JavaInterface)iface).getJavaClass(), operation); |
| return new JavaImplementationInvoker(operation, method, componentContextProvider.getComponent(), service.getInterfaceContract()); |
| } catch (NoSuchMethodException e1) { |
| throw new IllegalArgumentException(e1); |
| } |
| } else { |
| return new JavaImplementationInvoker(operation, componentContextProvider.getComponent(), service.getInterfaceContract()); |
| } |
| } |
| } |
| |
| public boolean supportsOneWayInvocation() { |
| return false; |
| } |
| |
| public Scope getScope() { |
| return new Scope(implementation.getJavaScope().getScope()); |
| } |
| |
| public void start() { |
| componentContextProvider.start(); |
| } |
| |
| public void stop() { |
| componentContextProvider.stop(); |
| } |
| |
| public InstanceWrapper<?> createInstanceWrapper() { |
| return componentContextProvider.createInstanceWrapper(); |
| } |
| |
| public boolean isEagerInit() { |
| return implementation.isEagerInit(); |
| } |
| |
| } |