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/JavaImplementationProvider.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/JavaImplementationProvider.java | 183 |
1 files changed, 183 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/JavaImplementationProvider.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/JavaImplementationProvider.java new file mode 100644 index 0000000000..19affac368 --- /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/JavaImplementationProvider.java @@ -0,0 +1,183 @@ +/* + * 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.ResourceHost; +import org.apache.tuscany.sca.implementation.java.injection.RequestContextObjectFactory; +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.invocation.InvokerAsyncRequest; +import org.apache.tuscany.sca.invocation.InvokerAsyncResponse; +import org.apache.tuscany.sca.provider.ImplementationAsyncProvider; +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, ImplementationAsyncProvider { + private JavaImplementation implementation; + private JavaComponentContextProvider componentContextProvider; + private RequestContextFactory requestContextFactory; + private Scope scope; + + 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); + + this.scope = new Scope(implementation.getJavaScope().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.isAssignableFrom(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(); + ResourceHost resourceHost = resource.getResourceHost(); + objectFactory = createResourceObjectFactory(type, mappedName, optional, resourceHost); + } + } + 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); + } 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); + } catch (NoSuchMethodException e1) { + throw new IllegalArgumentException(e1); + } + } else { + return new JavaImplementationInvoker(operation, componentContextProvider.getComponent(), service); + } + } + } + + public boolean supportsOneWayInvocation() { + return false; + } + + public Scope getScope() { + return scope; + } + + public void start() { + componentContextProvider.start(); + } + + public void stop() { + componentContextProvider.stop(); + } + + public InstanceWrapper<?> createInstanceWrapper() { + return componentContextProvider.createInstanceWrapper(); + } + + public boolean isEagerInit() { + return implementation.isEagerInit(); + } + + public InvokerAsyncRequest createAsyncInvoker(RuntimeComponentService service, Operation operation) { + // createInvoker should automatically create a JavaAsyncImplementationInvoker - if not, then it means + // that the service is not async and the result will be an exception caused by the class cast. + return (InvokerAsyncRequest) createInvoker( service, operation ); + } // end method createAsyncInvoker + + public InvokerAsyncResponse createAsyncResponseInvoker(Operation operation) { + return new JavaAsyncResponseInvokerImpl(); + } // end method createAsyncResponseInvoker + +} |