diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java | 400 |
1 files changed, 400 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java new file mode 100644 index 0000000000..403d8da3b9 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/invocation/JavaComponentContextProvider.java @@ -0,0 +1,400 @@ +/* + * 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.annotation.ElementType; +import java.lang.reflect.Constructor; +import java.lang.reflect.Field; +import java.lang.reflect.Method; +import java.lang.reflect.Modifier; +import java.lang.reflect.Type; +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import org.apache.tuscany.sca.assembly.ComponentProperty; +import org.apache.tuscany.sca.assembly.ComponentReference; +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.assembly.EndpointReference; +import org.apache.tuscany.sca.assembly.Multiplicity; +import org.apache.tuscany.sca.assembly.Reference; +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.ObjectCreationException; +import org.apache.tuscany.sca.core.factory.ObjectFactory; +import org.apache.tuscany.sca.core.invocation.CallableReferenceObjectFactory; +import org.apache.tuscany.sca.core.invocation.CallbackReferenceObjectFactory; +import org.apache.tuscany.sca.core.invocation.CallbackWireObjectFactory; +import org.apache.tuscany.sca.core.invocation.ProxyFactory; +import org.apache.tuscany.sca.core.invocation.WireObjectFactory; +import org.apache.tuscany.sca.core.scope.ScopeContainer; +import org.apache.tuscany.sca.core.scope.TargetResolutionException; +import org.apache.tuscany.sca.databinding.DataBindingExtensionPoint; +import org.apache.tuscany.sca.implementation.java.JavaConstructorImpl; +import org.apache.tuscany.sca.implementation.java.JavaElementImpl; +import org.apache.tuscany.sca.implementation.java.JavaImplementation; +import org.apache.tuscany.sca.implementation.java.JavaResourceImpl; +import org.apache.tuscany.sca.implementation.java.JavaScopeImpl; +import org.apache.tuscany.sca.implementation.java.context.InstanceFactory; +import org.apache.tuscany.sca.implementation.java.injection.JavaPropertyValueObjectFactory; +import org.apache.tuscany.sca.implementation.java.introspect.JavaIntrospectionHelper; +import org.apache.tuscany.sca.interfacedef.InterfaceContract; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.java.JavaOperation; +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.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.apache.tuscany.sca.runtime.RuntimeEndpointReference; +import org.oasisopen.sca.ServiceReference; + +/** + * The runtime instantiation of Java component implementations + * + * @version $Rev$ $Date$ + */ +public class JavaComponentContextProvider { + private JavaPropertyValueObjectFactory propertyValueFactory; + private RuntimeComponent component; + private JavaInstanceFactoryProvider<?> instanceFactoryProvider; + private ProxyFactory proxyFactory; + private InstanceFactory instanceFactory; + private JavaScopeImpl scope; + + public JavaComponentContextProvider(RuntimeComponent component, + JavaInstanceFactoryProvider configuration, + DataBindingExtensionPoint dataBindingExtensionPoint, + PropertyValueFactory propertyValueObjectFactory, + ComponentContextFactory componentContextFactory, + RequestContextFactory requestContextFactory) { + super(); + this.instanceFactoryProvider = configuration; + this.proxyFactory = configuration.getProxyFactory(); + // if (componentContextFactory != null) { + // this.componentContext = componentContextFactory.createComponentContext(component, requestContextFactory); + // } else { + // this.componentContext = new ComponentContextImpl(this, requestContextFactory, this.proxyService); + // } + this.component = component; + this.propertyValueFactory = (JavaPropertyValueObjectFactory) propertyValueObjectFactory; + this.scope = ((JavaImplementation)component.getImplementation()).getJavaScope(); + } + + InstanceWrapper<?> createInstanceWrapper() throws ObjectCreationException { + if (instanceFactory == null) { + start(); + } + return instanceFactory.newInstance(); + } + + void configureProperties(List<ComponentProperty> definedProperties) { + for (ComponentProperty p : definedProperties) { + configureProperty(p); + } + } + + private void configureProperty(ComponentProperty configuredProperty) { + JavaElementImpl element = + instanceFactoryProvider.getImplementation().getPropertyMembers().get(configuredProperty.getName()); + + if (element != null && configuredProperty.getValue() != null) { + if (!(element.getAnchor() instanceof Constructor)) { + if(element.getElementType() == ElementType.FIELD) { + // Field field = (Field)element.getAnchor(); + instanceFactoryProvider.getInjectionSites().add(element); + /* + if(Modifier.isPublic(field.getModifiers())) { + instanceFactoryProvider.getInjectionSites().add(element); + } else if(field.getAnnotation(org.oasisopen.sca.annotation.Property.class) != null) { + instanceFactoryProvider.getInjectionSites().add(element); + } + */ + } else { + instanceFactoryProvider.getInjectionSites().add(element); + } + } + + //Class propertyJavaType = JavaIntrospectionHelper.getBaseType(element.getType(), element.getGenericType()); + ObjectFactory<?> propertyObjectFactory = + createPropertyValueFactory(configuredProperty, configuredProperty.getValue(), element); + instanceFactoryProvider.setObjectFactory(element, propertyObjectFactory); + + JavaConstructorImpl<?> constructor = instanceFactoryProvider.getImplementation().getConstructor(); + for(JavaElementImpl p: constructor.getParameters()){ + if(element.getName().equals(p.getName())) { + instanceFactoryProvider.setObjectFactory(p, propertyObjectFactory); + } + } + } + } + + void start() { + List<JavaElementImpl> callbackInjectionList = null; + + // If the component implementation is stateless, we need to inject the callbacks on service invocation + // rather than doing it once at the component level. + if ( scope.equals(JavaScopeImpl.STATELESS)) { + callbackInjectionList = instanceFactoryProvider.getCallbackInjectionSites(); + } else { + callbackInjectionList = instanceFactoryProvider.getInjectionSites(); + } + + if (!instanceFactoryProvider.getImplementation().getCallbackMembers().isEmpty()) { + Map<String, List<EndpointReference>> callbackWires = new HashMap<String, List<EndpointReference>>(); + for (ComponentService service : component.getServices()) { + + RuntimeComponentReference callbackReference = (RuntimeComponentReference)service.getCallbackReference(); + if (callbackReference != null) { + List<EndpointReference> wires = callbackReference.getEndpointReferences(); + if (!wires.isEmpty()) { + RuntimeEndpointReference epr = (RuntimeEndpointReference) wires.get(0); + callbackWires.put(epr.getComponentTypeReferenceInterfaceContract().getInterface().toString(), + wires); + } + } + } + + for (Map.Entry<String, Collection<JavaElementImpl>> entry : instanceFactoryProvider.getImplementation() + .getCallbackMembers().entrySet()) { + List<EndpointReference> wires = callbackWires.get(entry.getKey()); + if (wires == null) { + // this can happen when there are no client wires to a + // component that has a callback + continue; + } + for(JavaElementImpl element : entry.getValue()) { + Class<?> businessInterface = element.getType(); + ObjectFactory<?> factory = null; + if (ServiceReference.class.isAssignableFrom(element.getType())) { + businessInterface = + JavaIntrospectionHelper.getBusinessInterface(element.getType(), element.getGenericType()); + factory = + new CallbackReferenceObjectFactory(businessInterface, proxyFactory, wires); + } else { + factory = new CallbackWireObjectFactory(businessInterface, proxyFactory, wires); + } + if (!(element.getAnchor() instanceof Constructor)) { + callbackInjectionList.add(element); + } + instanceFactoryProvider.setObjectFactory(element, factory); + } + } + } + for (Reference ref : instanceFactoryProvider.getImplementation().getReferences()) { + JavaElementImpl element = + instanceFactoryProvider.getImplementation().getReferenceMembers().get(ref.getName()); + if (element != null) { + if (!(element.getAnchor() instanceof Constructor)) { + if(element.getElementType() == ElementType.FIELD) { + Field field = (Field)element.getAnchor(); + if(Modifier.isPublic(field.getModifiers())) { + instanceFactoryProvider.getInjectionSites().add(element); + } else if(field.getAnnotation(org.oasisopen.sca.annotation.Reference.class) != null) { + instanceFactoryProvider.getInjectionSites().add(element); + } + } else { + instanceFactoryProvider.getInjectionSites().add(element); + } + } + ComponentReference componentReference = null; + List<EndpointReference> wireList = null; + for (ComponentReference reference : component.getReferences()) { + if (reference.getName().equals(ref.getName())) { + wireList = ((RuntimeComponentReference)reference).getEndpointReferences(); + componentReference = reference; + break; + } + } + if (ref.getMultiplicity() == Multiplicity.ONE_N || ref.getMultiplicity() == Multiplicity.ZERO_N) { + List<ObjectFactory<?>> factories = new ArrayList<ObjectFactory<?>>(); + Class<?> baseType = + JavaIntrospectionHelper.getBaseType(element.getType(), element.getGenericType()); + for (int i = 0; i < wireList.size(); i++) { + ObjectFactory<?> factory = null; + if (ServiceReference.class.isAssignableFrom(baseType)) { + Type callableRefType = JavaIntrospectionHelper.getParameterType(element.getGenericType()); + // Type businessType = JavaIntrospectionHelper.getParameterType(callableRefType); + Class<?> businessInterface = + JavaIntrospectionHelper.getBusinessInterface(baseType, callableRefType); + factory = new CallableReferenceObjectFactory(businessInterface, (RuntimeEndpointReference) wireList.get(i)); + } else { + factory = createObjectFactory(baseType, wireList.get(i)); + } + factories.add(factory); + } + instanceFactoryProvider.setObjectFactories(element, factories); + JavaConstructorImpl<?> constructor = instanceFactoryProvider.getImplementation().getConstructor(); + for(JavaElementImpl p: constructor.getParameters()){ + if(element.getName().equals(p.getName())) { + instanceFactoryProvider.setObjectFactories(p, factories); + } + } + } else { + if (wireList == null && ref.getMultiplicity() == Multiplicity.ONE_ONE) { + throw new IllegalStateException("Required reference is missing: " + ref.getName()); + } + if (wireList != null && !wireList.isEmpty()) { + ObjectFactory<?> factory = null; + if (ServiceReference.class.isAssignableFrom(element.getType())) { + Class<?> businessInterface = + JavaIntrospectionHelper.getBusinessInterface(element.getType(), element + .getGenericType()); + factory = + new CallableReferenceObjectFactory(businessInterface, (RuntimeEndpointReference) wireList.get(0)); + } else { + factory = createObjectFactory(element.getType(), wireList.get(0)); + } + instanceFactoryProvider.setObjectFactory(element, factory); + JavaConstructorImpl<?> constructor = instanceFactoryProvider.getImplementation().getConstructor(); + for(JavaElementImpl p: constructor.getParameters()){ + if(element.getName().equals(p.getName())) { + instanceFactoryProvider.setObjectFactory(p, factory); + } + } + } + } + } + } + + //setUpPolicyHandlers(); + this.instanceFactory = instanceFactoryProvider.createFactory(); + + } + + void addResourceFactory(String name, ObjectFactory<?> factory) { + JavaResourceImpl resource = instanceFactoryProvider.getImplementation().getResources().get(name); + + if (resource != null && !(resource.getElement().getAnchor() instanceof Constructor)) { + instanceFactoryProvider.getInjectionSites().add(resource.getElement()); + } + + instanceFactoryProvider.setObjectFactory(resource.getElement(), factory); + } + + Object createInstance() throws ObjectCreationException { + return createInstanceWrapper().getInstance(); + } + + JavaInstanceFactoryProvider<?> getInstanceFactoryProvider() { + return instanceFactoryProvider; + } + + void stop() { + //cleanUpPolicyHandlers(); + } + + Invoker createInvoker(Operation operation, RuntimeComponentService service) throws NoSuchMethodException { + Class<?> implClass = instanceFactoryProvider.getImplementationClass(); + + Method method = JavaInterfaceUtil.findMethod(implClass, operation); + if (operation instanceof JavaOperation && + ((JavaOperation) operation).isAsyncServer() ) { + return new JavaAsyncImplementationInvoker(operation, method, component, service); + } else { + return new JavaImplementationInvoker(operation, method, component, service); + } // end if + } // end + + private static class OptimizedObjectFactory<T> implements ObjectFactory<T> { + private ScopeContainer scopeContainer; + + public OptimizedObjectFactory(ScopeContainer scopeContainer) { + super(); + this.scopeContainer = scopeContainer; + } + + public T getInstance() throws ObjectCreationException { + try { + return (T)scopeContainer.getWrapper(null).getInstance(); + } catch (TargetResolutionException e) { + throw new ObjectCreationException(e); + } + } + + } + + private <B> ObjectFactory<B> createObjectFactory(Class<B> interfaze, EndpointReference wire) { + // FIXME: [rfeng] Disable the optimization for new as it needs more discussions + /* + boolean conversational = wire.getSource().getInterfaceContract().getInterface().isConversational(); + Binding binding = wire.getSource().getBinding(); + // Check if it's wireable binding for optimization + if (!conversational && binding instanceof OptimizableBinding) { + OptimizableBinding optimizableBinding = (OptimizableBinding)binding; + Component component = optimizableBinding.getTargetComponent(); + if (component != null) { + Implementation implementation = component.getImplementation(); + // Check if the target component is java component + if (implementation instanceof JavaImplementation) { + JavaImplementation javaImplementation = (JavaImplementation)implementation; + if (interfaze.isAssignableFrom(javaImplementation.getJavaClass())) { + ScopedRuntimeComponent scopedComponent = (ScopedRuntimeComponent)component; + ScopeContainer scopeContainer = scopedComponent.getScopeContainer(); + Scope scope = scopeContainer.getScope(); + if (scope == Scope.COMPOSITE || scope == Scope.STATELESS || scope == Scope.SYSTEM) { + boolean optimizable = true; + for (InvocationChain chain : wire.getInvocationChains()) { + if (chain.getHeadInvoker() != chain.getTailInvoker()) { + optimizable = false; + break; + } + } + if (optimizable) { + return new OptimizedObjectFactory<B>(scopeContainer); + } + } + } + } + } + } + */ + return new WireObjectFactory<B>(interfaze, (RuntimeEndpointReference) wire, proxyFactory); + } + + private ObjectFactory<?> createPropertyValueFactory(ComponentProperty property, + Object propertyValue, + JavaElementImpl javaElement) { + return propertyValueFactory.createValueFactory(property, propertyValue, javaElement); + } + + /** + * @return the component + */ + RuntimeComponent getComponent() { + return component; + } + + /*private void setUpPolicyHandlers() { + for (PolicyHandler policyHandler : policyHandlers.values()) { + policyHandler.setUp(component.getImplementation()); + } + } + + private void cleanUpPolicyHandlers() { + for (PolicyHandler policyHandler : policyHandlers.values() ) { + policyHandler.cleanUp(this); + } + }*/ + +} |